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1. 110 B
2. DCVPP Ped C518 101 11505 BRIW KAIMOSSOBTU TO 3P 5L C516 R530 R520 2 1 AN D510 BYW29E20 2 2 1K3W 24K R523 103 1KV Cz 15K AN 6 1502 7 2 D511 BYw2oE2o 0506 508 14 3 C523 4 TT el eel HER207 csis aoi 1 4 4 BRIW m m TC513 HS817 1 6 515 luF 4 4 pa 22 Ea 10 2200uF 50V EST resi H GND 4 2200uF 50V 50 BCK 40 0244 0726 NS 15509 R525 R517 AR Landi E HER105 R515 104 474 50 C504 5 101 1503 R529 1 4 Y 4 5 47K 2W H GND H GND 10uH 2A TC503 TC504 5 Cs 5 505 TCS05 T T nem 1000uF 25 V 470uF25Y ATOUE 10V ud R503 C501 HERI05 D514 R502 i 15404 103 1KV P P uuu ds dnd TC501 68KD2W T501 16 i 330uF 400V 507 101 DE 15 820R 0513 2 1504 10uH 2A 1N5404 2 bl ims TC506 507 1000uF 10V 1000uF 10
3. 100K L316 C 19 39 TEN 8933 LDO AV33 1201 A 4 4 V18 pBSMT RFVIS 8 19 3 3 3 gt R209 750K C231 0232 0233 50234 235 104 104 104 104 104 105 gt zai 210 4 23 220 4 4 TC206 Lm LDO AV33 100 70 474 198167 TC204 TA 205 104 10uF 16V 0303 IK TC302 sali 10uF 16V 152 T XS301 2SK3018 8 28 3018 8 EE 24P05mm ca 1002 Ek E TC301 eB 24 GNDID os o2ouriv PLLVDD3 303 E El gt 5 25 DVDID 47uH Q301 Bl eg 5 2 2881132 8 50 01 E C229 C251 21 HMF EBSMT 4 520 1 312 UR MDI 104 TC207 104 5 19 0302 100 5 16 H RFVDD3 FS R206 560R 5 18 VR DVD 1310 2SB1132 S 517 VRCD 1309 VREF C216 104 16 L202 C260 6 47uH 89 33 104 EST L308 EBSMT TC303 C C201 105 vig L307 vvv BMT v20 47uF 16V C236 TC208 Je 4 103 220uF 6 3V B C20 105 lt 1
4. 77 7 78 424 Function introduction ____________ __ _ 79 27 80 3 5 6 Function introduction to74HCT125 sss 81 3 5 7 Function introduction to Cd4052 83 3 5 8 Function introduction to 6588 TENER EPA 84 3 5 9 Function introduction to CS5340 84 3 5 10 Function introduction to 4558 4580 e 85 3 5 11 Function introduction to TEV 86 ______________ 86 3 5 13 Function introduction to TAS5112 88 3 5 14 Function introduction 93 3 5 15 function introduction to LM431A emm RM HMM 93 3 5 16 Function introduction to HS817 2 7 94 3 5 17 Function introduction to P2579 sss 94 Chapter Four Disassembly and Assembly Proces intret 96 Chapter Cinque board amp Circuit diagram mm 97 Section One PCB board Eee eh ERE Fe Erste a Eni ced e ba eda 97 Section Two circuit eene 106 Chapter Six BOM List ___ ____ 112 Chapter One About Maintenance 1 1 Safety precautions 1 1 1 Power supply When maintenance personnel are repairing DVD players he should pay special attention to the power board with 220V AC and 330V DC which will cause hurt and damage to persons 1 1 2 Precautions for a
5. HS bootstrap supply BST GVDD Door drive and digital regulator power supply Common 3 Table 1 is shown as follows M1 M2 Protection mode selection 0 0 Auto error correction mode 0 1 Error detection off mode 1 0 Protection system ineffective mode 1 1 none 4 Table 2 is shown as follows Output mode selection Bridge binding load output mode none 92 5 Table 3 is shown as follows SD RESET Function description 0 0 none 0 1 Device in protection mode 1 0 Device set in high impedance state 1 1 normal working 3 5 14 Function introduction to 5L0380 Pin 3 of 5L0380 is controlled by feedback pin 4 to make it on for a while and off for another while to form pulse DC to control coupling quantity of transformer When secondary output voltage of transformer is on the high side under the control of pin 4 disconnection time of pin 3 gets longer and coupling quantity of transformer decreases to make output voltage get lower gradually when secondary output voltage of transformer is on the low side disconnection time of pin 3 gets shorter connection time gets longer connect inside 510380 coupling quantity of transformer decreases and secondary output voltage gets larger gradually Pin function is shown as the following table Pin Function Voltage Remark 2
6. J4 R2026 33R DNS 48 R2027 33R DNS ACLK R2004 33R SACLK R2005 33 SBCLK ALRCK R2006 SLRCK R2007 SDATAO 200 SDATAI ASDAT2 2007 33 SDATA2 8207 RST 1350 FBSMT 1 SDATAO 1351 2 SDATAT BMT 3 SDATA2 1353 FBSMT 74 5 SACLK 1354 FBSMT 6 7 SBCLK L355 FBSMT T 8 SLRCK 1 356 9 AUIN SEL L357 10 e000000 1358 1 000000 SCL 1359 12 SDA 1 360 13 2094 0077 1373 14 QUAL 1374 15 DTS DO 1361 16 VSCK DTSCL 362 BMT 17 VSDA DTSDI L363 18 DTS CE L364 19 MO L365 20 000 R2010 DAVNIN 1366 FBSMT 21 47K 422 MI L367 FBSMT T 23 0000 HDET OUT L368 24 10000000 5508 1 369 25 0000 RDCL L375 26 HDET IN 1 370 27 1000 1371 28 PO OOO DA XS28 RY 1376 FBSMT t 05 BC 1377 2 3 CVBS 1378 FBSMT 4 5 G 1 1379 FBSMT 6 BIC 1380 Bc HSYNC FBSMT 9 VSYNC L383 10 VDATA3 L384 12 mos R23 1 1385 FBSMT 13 TSR GND U213 CD4094 4094ST RST 4094DAT SEL 4094CLK MO DITS HDET OUT VDATA3 2094 0077 89V33 R2002 10K OASTHS7 HGOOHG FP 5 2 5 audio power amplifying Board
7. 04 CH1 1 004 2 508 CH1 2 2 664 8 06 16 53 100 536kHz 58 3 1389 main clock signal waveform diagram Tek Trig d M Pos 0 0005 SAVE REC Action Save Image File Format About 1 Saving Images Select Folder Save 005 8 CH1 2 00 M 25 018 CH1 0 00 Current Folder is 4 Contrast figure of TAS5508 reset signal RST and main reset signal URST USRT means the time required to finish resetis 600ms RST meansreset begins and time is 680ms Tek Stop M Pos 0 000 SAVE REC Action UT TT Image File Format About Saving Images 1 Folder Save 2 m i 0007 CHi 200 CH2 200 M1 00s 000 Current Folder is A 5 Waveformof PWM signal outputted by TAS5508 when playing f2352 78KHZ Tek Stop M Pos 0 0005 SAVE REC Action Save Image File Format About Saving Images 1 Select Folder Save 008 8 CH1 1 00 M 1 0015 CH1 1 664 Current Folder is 4 59 6 PWM RL signal output range is 4 0 frequency is 384 0KHZ fixed output does not change with volume adjustment waveform of two ends of R103 Tek m e Stop M Pos 0 0006 SAVE REC Tek all amp n M Pos 0 0005 About Saving 1 Images Select Folder Save TEKOOQ3 BME CH1 1 00 M 1 00 us CH1 1 664 CH1 500my M 1 005 CH1 2 Current Folder is Current Fold
8. 6 IRI21 150R 0 5w D 5V 47u 16V 1 204 CON7 C112 102 R117 gt 100R 100R 0 5W R133 C114 115 221 221 106 6 NVOS lcs OA T 101 XP206 CONI3 2 1420 L Desy VIDEO C 1119 L VD109 144148 y 2 VIDEO Y E 1 8uH S SR Leio Ben 1N4148 47P ae Disv 0107 v 144148 VIDEO 106 0106 5 07 47 TIE Disv y T 0105 2 1441485 COMP 1 8uH Y 107 SR 0104 3 1144148 Y6 v HSYNC A Desy SPDIF VD103 s 14148 VIDIO Y1 EU 1 8uH L WZ 108 58 cll2 VD102 2 1104 Bi 47P 47 144148 103 L 5SR ds L105 Red D45V 2 i cq L114 enc T Ys n 3 144148 VIDIOU pm 1 8uH m 58 10209100 C120 ens 1N4148 SPDIF R129 104 v v TOOR Disv Y6 1116 14148 VIDIO V
9. 16V supply voltage for 510380 after starting up 3 310V power supply input 310V 4 Control of space occupation ratio to pulse width 3 5 15 function introduction to LM431A 0503 LM431A is a 2 5V comparator shown as the figure 3 5 15 1 Compared the inputted voltage of R end with 2 5V when voltage of R end is more than 2 5V KA end is on and photoelectric coupler starts to send out photocurrent when voltage of R end is less than 2 5V end is cutoff and photoelectric coupler does not send out photocurrent CPU 3 3V in power board circuit must be kept in 3 3V for the function of comparator No matter more than or less than 3 3V through on and off status of comparator it will control the on state of the output of photoelectric coupler 431 to adjust the output space occupation ratio of switch module to control the output voltage of transformer and masthead the power supply of the whole system 93 Figure 3 5 15 1 LM431A outside drawing 3 5 16 Function introduction to HS817 U502 HS817 is a photoelectric coupler shown as the figure 3 5 16 1 The right side is a light emitting diode which sends out light of different intensity according to the strength of voltage inputted from the right side generates photocurrent of different intensity on the left side according to light of different intensity and outputs from position D The higher of the voltage inputted from the right side the stronger of th
10. oem ise p 61 1 75 4 Key point test point voltage V is shown asthe following table Component video without picture picture Component video brightness signal bright picture dark 1 Component video signal Component video color distortion a 62 Section Five Function Introduction to IC 3 5 1 function introduction to MT1389E 1 DESCRIPTION MT1389E is a cost effective DVD system on chip SOC which incorporates advanced features like MPEG 4 video decoder high quality TV encoder and state of art de interlace processing Based on MediaTek s world leading DVD player SOC architecture the MT1389E is the 3rd generation of the DVD player SOC It integrates the MediaTek 2nd generation front end analog RF amplifier and the Servo MPEG AV decoder To enrich the feature of DVD player the MT1389 equips a simplified MPEG 4 advanced simple profile ASP video decoder to fully support the DivX1 Home Theater profile makes the MT1389 based DVD player be capable of playback MPEG 4 content which become more and more popular The progressive scan of the MT1389E utilized advanced motion adaptive de interlace algorithm to achieve the best movie video playback It also supports a 3 2 pull down algorithm to give the best film effect The 108MHz 12 bit video DAC provides users a whole new viewing experience 2 Key Features RF Servo MPEG Integration Embedded 6ch Audio DAC
11. Use oscillograph to N test whether theend focus is normal close to MT1389 of R204 whether feed and downward th bet has waveform Note after power signal pa etween on 11389 and D5954 is normal Y Y Check whether the focus signal pathbetween MT1389 and U301 D5954 is normal Whether it normal after changing U301 D5954 Y Check whether laser power control circuiti normal Change U301 D5954 and check whetherlt is normal Whether laser head haslaser emission Check whether the end close toMT1389 of R201 has pulse Y 1 change MT1389 2 Check otherperipherical circuit Whether main axis has rotation Note Check whether the Check Check whether main close toMT1389 whether C213 MD has tracesignal and has electric leakageor check short circuit waveform Note Change Y Change te correspondingeiement Check whether main axis braking circuitis normal Check whether trace Change the correspondingelement and U301 is normal Change U301 D5954 and check whetherit i normal Change U301 D5954 and check whetherit is normal Change MT1389 1 Check powersupply circuit if power supply isabnormal 2 Check clockcircuit whether clock is abnormal Change MT1389 N
12. Filtering Switch module Rectification diode Rectificatio Filtering circuit circuit Figure 3 2 6 1 Powercircuit block diagram 22 5 2 Working principle this power circuit is composed of two parts which use the common electromagnetic interference filtering circuit and bridge rectification circuit and filtering circuit The first part circuit produces 28 DC used to supply power for power amplifier circuit the other part is responsible for the power supply of other module circuit of the player The working principle of each composed part is shown follows 1 Electromagnetic interference filtering circuit various electromagnetic radiation exists in the surrounding environment so it will affect the inputted AC and the function of electromagnetic interference filtering circuit is to filter these interference to make those that enter bridge rectification circuit is pure 220V AC 2 Bridge rectification and filtering circuit the function of this circuit isto produce a 310V DC used for rear stage 3 Start up circuit when power on transformer does not begin to work now the start up circuit provides switch module with a power supply voltage to make it work after transformer begins to work normally the voltage provided for switch module by power supply circuit maintains the working of switch module 4 Absorption loop the switch module performs on off action in a high frequency so a strong self inductance volta
13. 6 A R323 R324 t isl LOAD 1 si 15K 0306 Q307 15K X307 80 33 lt 2 85500 85500 SAC lop 13 XS2 2 0 DNS E E LOAD T 2 XS302 313 c314 R333 I0K DNS 5P 2 0mm R329 DV33 XIII R330 R32 104 TROUT 1 LOAD Dur XR ND 2 xs304 PEN AD 2 TROI TRCLOSE 2 3 4 3 TROUT R340 330R TROUT R325 R327 103 DNS 5108 5108 GN d Q308 Q309 TROPEN 5 RNE 2 TRIN 2 R339 c310 vec R326 Q310 10 5306 5 2 2R 1 4W 9014 8 103 103 6P 1 0mm Xu XS4 2 0 DNS R341 100R DNS 1 peog 5 601 0208 mm SDRAM 64M 89V33 C24 0202 24 02 R232 R233 a 10K SCL SDA 4 2003 C2004 gt 102 _ R234 2029 BAI R235 XS201 51 0014 DCLK R2 p 6 4 1386 as DEKE Row lt 5 m 4 5033 21 CS 4 4 2 RASE 3 4 2 5 CASK 2 3 1 806 R2003 C10
14. SRPD SMT InOut 4mA SRPD SMT InOut 4mA SRPD SMT InOut 4mA SRPD SMT InOut 4mA SRPD SMT InOut 4mA SRPD SMT InOut 4mA SRPD SMT InOut 4 16mA SRPD SMT Input SMT InOut 4 16 SRPD SMT InOut 4mA PD SMT InOut 4mA SMT InOut 4mA SMT Microcontroller port 1 3 Microcontroller port 1 4 Microcontroller port 1 5 9 Microcontroller port 1 6 10 12 clock pin 11 Microcontroller port 1 7 12 I2C data pin 13 Microcontroller port 3 0 14 8032 RS232 RxD 15 Microcontroller port 3 1 16 8032 RS232 TxD 17 Microcontroller port 3 4 18 Hardwired RD232 RxD 19 12 clock pin 20 Microcontroller port 3 5 21 Hardwired RD232 TxD 22 12 data pin IR control signal input Microcontroller external interrupt 0 active low 1 Audio left right channel clock 2 Trap value in power on reset 1 1 use external 373 Il 0 use internal 373 3 While internal audio DAC used 1 Digital video YUV output 1 4 Audio bit clock 5 While internal audio DAC used 1 Digital video YUV output 0 GPIO 6 Audio DAC master clock 7 While internal audio DAC used 154 155 156 157 158 159 172 ASDATAO ASDATA1 ASDATA2 DATA SPDIF AADVSS YUV2 GPO YUVA GPO YUV5 GPO YUV6 GPIO INT2 YUVO InOut 4mA PD SMT InOut 4mA PD SMT InOut 4mA PD SMT InOut 4mA PD
15. 0 GND cas 71 i ELT were PGND PGND PGND PGNDPGND fe Figure 3 3 1 2 Power amplifying circuit diagram Example 6 MIC has no sound Analysis and troubleshooting when playing discs use remote controller to open MIC item and there is still no sound Check power supply of 4558 CD4052 CS5340 and they are all normal Use oscillograph to test pin 6 input of 4558 and it is normal pin 7 has no input check R4 C6 and they are both normal so itis doubted that 4558 is damaged after changing 4558 MIC is normal Example 7 Power amplifier has no sound Analysis and troubleshooting use multimeter to test power supply on power amplifier board XP503 and it is 29 6V which is normal Test power supply on XP101 and it isalso normal test HDET signal on pin 24 of XS207 on power amplifier board and it is OV when working normally if headphone is not inserted voltage on HDET should be about 3 3V Test HDET signal on pin 7 of XS201 on power amplifier board and it is OV which is abnormal in normal conditions if headphone is not inserted voltage in this place should be 2 9V when power off and headphone is not inserted use multimeter to 32 Test the resistance to ground of HDET signal of 7 of XS207 and it is 0 ohm and it should be infinite in normal conditions so we preliminarily confirm that HDET signal is short circuited to ground unplug flat cable on XS201 test the resistance to ground of p
16. 150 90 DACVDDB DACVSSB DACVDDA DACVSSA B CB PB R CR PR PRST XTALO XTALI GPIOO GPIO1 2 GPIO3 4 GPIO5 GPIO6 VSYN YUV1 SPMCLK INT1 SPDATA SPLRCK INT3 SPBCK YUVCLK Power InOut 4mA SR InOut 4mA SR InOut 4mA SR 3 3V power pin for video DAC circuitry Ground pin for video DAC circuitry 3 3V power pin for video DAC circuitry Green Y SY or CVBS Ground pin for video DAC circuitry Blue CB PB or SC Red CR PR CVBS or SY MISC 12 InOut PD SMT InOut PD SMT InOut 4mA SR SMT InOut 4mA SR SMT InOut 2mA 42 InOut 2mA 45 InOut 2mA InOut 2mA InOut 4mA SR SMT Power on reset input active low Microcontroller ICE mode enable 27 2 crystal output 27MHz crystal input 33 General purpose IO 0 34 Vertical sync for video input 35 Digital video YUV output 1 36 General purpose IO 1 37 Horizontal sync for video input 38 Microcontroller external interrupt 4 39 Digital video YUV output 2 40 General purpose IO 2 41 Audio S PDIF SPMCLK input General purpose IO 3 43 Microcontroller external interrupt 1 44 Audio S PDIF SPDATA input General purpose IO 4 46 Audio S PDIF SPLRCK input 47 General purpose 10 5 48 Microcontroller external interrupt 3 49 Audio S PDIF SPBCK input 50 General purpose IO 6 51 Digital video clock output 75 99 145 144 143
17. Possibility of program mable control of the decoder to transfer basses into low frequency channel in systems equipped broad band speakers and a subwoofer Compatible with existing and future two channel stereo formats Undoubted progress in sound recording technology especially important for program directors film directors sound engineers and actors Big progress in comparison whti conventional stereo the worol s mosst popular surround format Chapter Three Principle and Servicing Section One Principle of the Player 3 1 1 Function introduction This players adopts new generation DVD decode chip with built in Dolby decoder and the vivid surround system brings you to taste the living cinema effect Ithas the following features Progressive scanning output to produce steadier and clearer pictures without flickering Composite video S video and component video output Digital picture adjustment to sharpness brightness contrast chroma and saturation of pictures gamma correction Built in Dolby digital decoder Hi FI stereo headphone output FM AM digital tuning function capable of storing memorizing 20 FM AM radio stations respectively Compatible with DIVX 4 format movie 3 1 2 Block diagram principle of the player The player is composed of decode amp servo board power amplifier board input output board panel headphone board tuner power board and loader Shown in the figure
18. 142 14 14 o 13 13 13 13 13 13 13 13 12 12 12 12 12 12 12 12 12 11 11 11 11 11 11 11 7 RA4 RAS RA6 RA7 RA9 InOut 4mA YUV3 SR SMT 52 General purpose IO 7 53 Digital video YUV output 3 Dram Interface 38 Sorted by position Dom pom pom RA11 InOut Pull Down CKE CEN 2 RA2 2 1 2 re 1 0 mm 20 08 m p om m RDO InOut DRAM address 4 DRAM address 5 DRAM address 6 DRAM address 7 DRAM address 8 DRAM address 9 DRAM address bit 11 DRAM clock enable Dram clock DRAM address 3 DRAM address 2 DRAM address 1 DRAM address 0 DRAM address 10 DRAM bank address 1 DRAM bank address 0 DRAM chip select active low DRAM row address strobe active low DRAM column address strobe active low DRAM Write enable active low Data mask 1 DRAM data 8 DRAM data 9 DRAM data 10 DRAM data 11 DRAM data 12 DRAM data 13 DRAM data 14
19. vero Analog output Reference voltage 2 8V 29 Amigos Reference voltage 2 0 30 Analog output Reference voltage 1 4V Analog monitor output 7 1 Central servo 25 CSO RFOP Analog output Positive main beam summing output 1 RFRP low pass or 26 RFLVL RFON Analog output Negative main beam summing output 31 FO Analog output Focus error monitor output 32 Analog output Tracking error monitor output Analog Servo Interface 8 204 xv Analog 3 3V power for ADC 205 Ground Analog ground for ADC 207 Analogoutput RF ripple detect output 208 Analog input RF ripple detect input through AC coupling 209 eO ____ High frequency RF fipple zero crossing 210 Analog output Defect level filter capacitor connecting RF Data PLL Interface 9 195 wo Analog output Output terminal of RF jitter meter 196 Analog input Input terminal of RF jitter meter 197 muss Ground pin for data PLL and related analog circuitry 198 Analog output Data PLL DAC Low pass filter 199 mv Pe Power pin for data PLL and related analog circuitry 200 Analog Output Negative output of loop filter amplifier 201 LPFIP Analog input Positive input terminal of loop filter amplifier 68 202 203 34 35 36 37 38 39 40 41
20. 42 43 48 84 132 146 74 120 60 87 108 137 149 54 66 Analog input Negative input terminal of loop filter amplifier Analog output Positive output of loop filter amplifier Motor and Actuator Driver Interface 10 Analog output Op amp output Analog input Op amp negative input OP INP Analog input Op amp positive input Analog output Disk motor control output PWM output Analog output Feed motor control PWM output TROPENPW M Analog output Tray PWM output Tray open output 3 1st General PWM output PWMOUT 1 ADINO Analog output 4 AD input 0 Tracking servo output output of tracking servo TRO Analog output compensator Focus servo output PDM output of focus servo FOO Analog output compensator LVTTLS 3 Input Monitor hall sensor input FG ADIN1 Schmitt input pull up 2 AD input 1 Digital pin GPIO with analog input path 3 GPIO for ADIN1 General Power Ground 11 DVDD18 1 8V power pin for internal digital circuitry DVSS 1 8V ground for internal digital circuitry DVDD3 3 3V power pin for internal digital circuitry DVSS 3 3V ground pin for internal digital circuitry Micro Controller and Flash Interface 48 InOut 4 16mA HIGHAO Microcontroller address 8 SRPU HIGHA1 InOut 4 16mA Microcontroller address 9 69 65 64 63 62 61 59 81 78 77 76 75 73 72 71 83 69
21. 47 49 HIGHA2 4 5 6 HIGHA7 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 IOA 0 IOA 1 IOA 2 IOA 3 SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16 InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16 SRPU InOut 4 16 SRPU Microcontroller address 10 Microcontroller address 11 Microcontroller address 12 Microcontroller address 13 Microcontroller address 14 Microcontroller address 15 Microcontroller address data 7 Microcontrol Microcontrol Microcontrol Microcontrol Microcontrol Microcontrol Microcontrol er address data 6 er address data 5 er address data 4 er address data 3 er address data 2 er address data 1 er address data 0 Microcontroller address Microcontroller address 1 IO Microcontroller address 2 IO Microcontroller address 3 ST 50 51 52 53 58 82 55 56 67 79 80 70 57 68 85 86 88 4 5 6 7 16 17 18 19 20 21 gt m IOOE IOCS UWR URD UP1_2 YUVO YUV7
22. AV33 4 10 B A 0203 105 5 9 89V33 lt 1206 BMT RFO 4 4 2 s 4 D C204 105 5 1 1305 ica 245 246 247 248 249 250 lt 6 D TC209 RFO C205 105 DNS 2 5 103 05 104 104 104 104 22ouF63V 1304 FBSMT TK 1 c206 53 1303 FBSMT TK 101 822 1302 mer 1301 _ 1203 8933 E RFVDD3 FBSMT ADACYDD3 C302 C303 1 1 En 237 238 1204 C240 Tz 222 103 104 330uH 103 220uF 6 3 V 7 0 MO_VCC R306 cos 1 16 1 17 cuo 4 4 s 104 104 104 i00ur i6v cut d lw nr 4 C208 5 215dc2 vcc vec c d 104 lur i Tes BE 2 21542159 20K R312 DMSO pioa 10 3041 151 R316 20K 110306 DMSO R201 10K 151 RsoT R202 15 0301 VIP4 VIPAIN TRSO 20 18K BA5954 FOSO 204 20K 89V33 cns a NC OPO XS303 R320 R364 6P 2 0mm VIP4 B o RR J C210 C211 C212 C213 R317 680K 3 4 SR 153 104 331 331 3 LIMIT R321 4 4 OND 5 0309 SPL 1 4 VIP4 3 6 SPL 2 APLLVDD3 89 V3 DACVDD 89 V3 150K 1205 3 1206 R322 680K 7 7 C241 le 243 100uF 16V 104 10uF 16V_ J103 105 Ts a Tc306 4TuF 16V E 47
23. C168 C169 C172 C173 C176 C177 C180 C CD CD11 35V470U 20 10x20 5 181 C185 C186 0260491 CD11K 35V680U 20 13x20 5 C36 C37 C133 C134 0410176 VERTICAE SCREEN SHIELD 10uH 10 4A 5mm L1 L4 L9 L11 05800069 5 1 5 1 2W BELT VD2 VD3 CMETAL OXIDE FILM gt U 2 UJ gt 43 c E 0010282 0260048 8 mm OO 3 x a r 05800099 0960226 Y 0960182 Y 0960171 Y 0881227 jeans 1 INSERT 7P60 2 5 2 SOCKET WITH NEEDLE FLAT CABLE TOGETHER DIRECTION APOI stoje 2 3 1 Nil D D D DI NiH D D D D Nil D D D D Nil B D D DI 0881429 NSO OO0 D NSO DH D D D 0880443 0882375 2120174 87 215553 5 O mz gt gt 2 QO 05 x m mz e m m ejs D ClO 5 E x elg 2 2 MATERIAL SPECIFICATIONS LOCATION 4P90 2 5 2 PIN WITH 2121641 FLAT CABLE NEEDLE TOGETHER DIRECTION 4210005 MACHINE TAPPING SCREW 3x8 BLACK 77 5230707 SOFT SPONGE 5 10 10 2 SINGLE FACED HARD 9 9 1 SINGLE FACED WITH GLUE IN 0090001 SMD RESISTOR 1 16W 00559 0603 R199 R213 R223 5 R51 R53 R65 R93 R113 R144 R145 R174 0090272 SMD RESISTOR 1 16W 10 5 0603 R178 R182 R187 R196 R197 0090540 SMD RESISTOR 1 16W1 50 5 0603 R34 R37 R134 R136 R186 SMD RESISTOR 1 16W 3 30 5 0603 R40 R41 R67 R140 R141 SMD RESISTO
24. DRAM data 15 DRAM data 0 S265 112 RD1 InOut DRAM data 1 107 RDS DRAM data 5 104 DQMO InOut Data mask 0 3 5 2 Function introduction to SDRAM The function of SDRAM U211 in the player is to save program taken out by MT1389 from FLASH and information of picture and sound taken out from disc when the player is working to form damping add the stability of information output and add anti vibration of the player The pin function and real voltage are shown as the following table Data Voltage Data Voltage Pin Name Function Pin Name Function V direction V Data bus 0 94 29 1 Address bus 1 65 3 3V power supply 3 19 30 1 Address bus 1 74 Data bus 0 9 31 eem mee eee mee Data bus 0 45 38 EE System clock input 1 68 Data in out screen shielded UDOM 2 42 signal VSS Ground 0 01 VSSQ Ground 0 39 14 VDD 3 3V power supply 3 14 41 Data in out screen shielded 15 LDQM 2 46 42 008 VO Data bus 0 6 signal 3 17 Lo 3 3V power supply 3 19 3 01 VO Data bus 0 91 1 8 DQ11 Data bus 0 79 Section address 0 gating signal Section address 1 gating 2 DQ12 1 16 signal 27 VDD 3 3V power supply 3 19 54 VSS Ground 0 01 3 5 3 Function introduction to FLASH FLASH 0214 15 16Mbit FLASH and the of 0214 may cause troubles Such as power not on no
25. Each path signalhas no output Check whether power supply of 1389 is normal Check power supplycircuit Whether the corresponding signal VIDEO COMP J of catching diode is normal Check matching resistor filtering and capacitor catching diode Whether clock signal of MT1389is normal Change 1389 Figure 3 3 2 12 Troubleshooting flow chartfor there is sound butno image Refer to troubleshooting process of clock circuit Check capacitor inductor and output terminalof this path signal on AV board path 49 13 Troubleshooting process for screen display is shown following figure 3 3 2 13 No screen display Check whether voltage of pin3 4 of XP505 is normal FL is 16V and FL is 19V Check the corresponding power supply circuit Check whether power supply of pin3 21V pin 4 5V of N102 50793 are normal Check the corresponding power supply circuit Change display screen VFD DS100and check whether they are OK Change N102 S0793 Figure 3 3 2 13 Troubleshooting flow chartfor no screen display 50 14 Troubleshooting process power supply output power enough is shown as the following figure 3 3 2 14 Output power ofpower supply is notenough Only one channel soutput power of power supplyis not enough Change this channe rectification diode and check
26. No sound ofheadphone Insert headphone Whether pin 7 HDET of Xs201 is low level of XS106 islow leve Change headphone holder Whether power supply of N10 N11 4580 is normal Use oscillograph to test whetherpin 5 6 of XS201 haveH L H R signal Check power supply circuit Use oscillograph to test whether PWMHPR PWMHMR signal has output Change N12 TAS5508 Whether pin 1 2 of XS106 have H R H L signal Whether pin 1 7 of N10 4580 has output Change N10 Change headphone holder Change N11 Figure 3 3 2 9 Troubleshooting flow chart forno sound of headphone 46 10 Troubleshooting process for no echo of microphone is ahown as the following figure 3 3 2 10 Check Check whether DET as a voltage thatchanges with N whether pin 7 of N1 4558 1 Check whetherR61 8 has microphone volume change has a voltage thatchanges with open circuit orvariable value i microphone volume when microphone 2 Change U601 4558 is outputting change Y Y Check whether cathode of VD603 hasa voltage that changes with microphone volume change Check whether N7 CS5340 power supply voltage and clock signal are normal N Check power supply circuit when there isno voltage change Mt1389 whenthere is no clock 1 Check whetherD603 has open circuit 2 Whether Tc611 and R620 55340 on decode
27. TV Default option 4 3 pan 4 scan some discs are recorded with support of only one ratio The selected radio must comply with the TV screen 4 Video output selection of video signal Options S Video Comp RGB Default option Comp 6 Gamma adjustment of image color temperature Options High Medium Low Off Default option 7 Brightness adjustment of image brightness 8 Contrast adjustment of image contrast 9 Hues adjustment of image hues 10 Saturation adjustment of image saturation Adjustment of image brightness contrast hues and saturation Select the desired item of the image adjustment section using the jog Dial Press OK or RIGHT key to start adjustong the relevant option Change the option value using the jog Dial Upon completion press the LEFT of the cursor joystick to return toimage setup menu 2 3 4 Sound settings menu 1 Mixer a Configuration setting ofthe mode for conversion of the 5 channel signal Mixer Ld Digital Output Tuning Options Stereo 5 1 Default option Stereo 5 1 mode must be supported by the disc Number of music accompaniment channels depends on the specific disc Adjustment of the central speaker and surround speakers is available only if the Configuration option is setto 5 1 position b Stereo mix playback set up while playing the disc with two independent audio channels Options L R L Default options L R Su
28. VIDEOV VD103 VD101 VD111 anode VIDEO Y1 has no output VIDEOU and VIDEOV have output Test pin 6 of XP206 and pin 6 of 206 on decode board there is no waveform output basically Disconnect the flat cable between XP206 and XS206 waveform of 6 of 5206 resumes normal so we estimate that trouble lies in filtering circuit on AV board Check R108 C112 C114 VD102 VD103 and find that VD102 is stricken through after changing VD102 component video output is normal Example 13 Power not on Analysis and troubleshooting Step 1 check power supply of power board and all output all normal Step 2 check the output of 1 8V voltage regulator and it is 1 9V which is normal Step 3 check clock frequency of two ends of X201 in clock circuit and it is normal Step 4 check the output of pin 6 of reset circuit U205 HCU04 and it is 3 4V which is normal Step 5 reset force use a lead to make U205 HCU04 grounding for about one second and find that power may be on and the player may work normally power of again after power off and find that power may be on but after power on and off repeatedly for several times power will be off again after reset by force it may power on freely Step 6 after changing U205 HCUO04 and power on repeatedly above ten times there is no abnormality that power noton so trouble is removed Conclusion power also may be on when reset circuit has trouble butit is not on sometimes which
29. it firstly sends out read signal to FLASH to read out in formation saved in FLASH the machine displays power on picture servo system begins to work to check whether machine closes door to proper position and 16 Whether detect switch has been closed if not the door close action is performed After detect switch of door is closed the machine begins to perform preparations of disc reading and performs panel display at the same time of working Playback process laser head picks up disc signal from disc after servo system processing then send to decode circuit for decoding signal after being decoded is saved in SDRAM for the moment When machine needs to replay signal decode circuit calls information inside SDRAM to perform D A conversion and then output User information storage information content set by useris saved inside EEPROM if user does not refresh or reset this information it will saved in IC permanently Audio video output circuit at present MT1389 all integrates video D A converter MT1389E inside integrates audio D A converter manufactures select according to their own needs Please refer to circuit principle diagram and audio circuit explanation for details 3 2 2 Servo circuit Servo system of this player adopts SANYO loader decode solution MT1389E FLASH 16M SDRAM 64M and its servo circuit is mainly composed of front stage signal processing and digital servo processing digital signal processing
30. mem omm mem mee fons Analog InOut ARF GPIO Output ARS GPIO Output AR GPIO Output AL Output ALS Output ALF Output Audio input 2 2ch audio ADC reference voltage Audio input 1 3 3V power pin for 2ch audio ADC circuitry 3 3V Power pin for audio clock circuitry APLL external capacitance connection Ground pin for audio clock circuitry Ground pin for audio DAC circuitry Ground pin for audio DAC circuitry 21 Audio DAC sub woofer channel output 2 While internal audio DAC not used GPIO 23 Audio DAC right Surround channel output 24 While internal audio DAC not used GPIO 25 Audio DAC right channel output 26 While internal audio DAC not used a SDATA1 b GPIO Audio DAC reference voltage 27 Audio DAC left channel output 28 While internal audio DAC not used a SDATA2 b GPIO 29 Audio DAC left Surround channel output 30 While internal audio DAC not used d GPIO 31 Audio DAC center channel output 32 While internal audio DAC not used GPIO 3 3V power pin for audio DAC circuitry 3 3V power pin for audio DAC circuitry Video Interface 12 1 InOut 4mA CVBS SR 3 3V power pin for video DAC circuitry Bandgap reference voltage Full scale adjustment Ground pin for video DAC circuitry Analog composite output 74 165 166 167 168 169 170 171 101 100 193 194 44 45 46 147 148
31. normal Check feedback loop and other relevant element Change U501 5L00380 and check whetherit i normal Change U503 TL431 and check whetherit is normal Change U502 HS817 and check whetherit i normal whether R502 C503 D502 R505 C502 TC502 have shortcircuit or electric leakage 2 icc M Figure 3 3 2 18 Troubleshooting flow chart for no voltage output 18 Trouble shooting for sound of external input is shown as the following figure 3 3 2 19 No sound forexternal input 1 Whether pin 20 of XS207is high level 3 3V 2 Whether V5and V6 arenormal No sound fortuning 3 Check otherperipherical circuit of TV6 Change N5 CD4052 and check whether it is normal external outputs have no sound Whether power supply of N5 CD4052 N7 CS5340 4 7 125 is normal No sound forexternal mixed left and rightchannels Figure 3 3 2 19 Troubleshooting flow chart for no sound of external input Check whether pin 7 and 14 of N6 SAA6558 about 5V Change tuner and check whetherit is normal oscillograph to check whether pin3 13 of N5 CD4052 have waveform signal Whether clock in the placeof crystal oscillator Y2 is 4 3V Check clock circuitin the position of Y2 Check Check the pathbetween Whether pin 7 whether pin N left right channel i
32. 10 DIO SR 1N4148 aT lt 117 47 NA C187 20P 12V D 5V L102 1 XCIO3B 6 2 MIX out 4 1 LOUTX AV2 RO AUXR AUXL XP401 8 1100 XCI03A ROUTX C119 AUX in 102 102 12V T E R104 30R A 12V D45V R114 33R V100 8050 2 R115 IK R113 V101 8050 LOUTX VU ADV C188 C186 20P 20P vY 107 CS 111 D45V R116 756 NSYNC V102 8050 1 129 104 Pieog LNO 801
33. C113 C205 02604379 CD CD11 16V10U 20 5x11C5 BELT VOTES DVD HOME THEATER DK1410SI RU 0882947 0882349 0882350 0882352 0882920 00003239 00003219 02101459 02101659 02604389 02607369 03900579 03901979 PROGRAM FLASH ROMDK1410SI OA 16M 0911597 0881754 IC 29LV160BE 70NC TSOP 121400000 IC AT49BV162A 70TI TSOP 121410000 PROGRAM CPU RCO73RU 0 0890292 5156608 SIGN STICKER CPURC073RU 0 0881998 124
34. Check whether C211 has electric leakage or short circuit Change the corresponding element 1 Change MT1389 2 Check othercircuit Change the correspondingelement z 1 Change MT1389 2 Check othercircuit z Note D Q 8 and are tested when nodisc in disc laserhead performs default focus and feed acts 57 99 se si Buipea osip ou 10 9 9 4104 02 Section Four Servicing Parameters 3 4 1 Signal waveform diagram This section collects signal waveform diagram of audio video and each unitcircuit with the purpose to help servicing personnel to judge where trouble lies in accurately and quickly to improve servicing skills For the difference of oscillograph s type model and tuner a certain difference may exist so the servicing personnel are expected to pay more attention to check in daily operation 1 Contrast figure R2024 of main reset signal VRST and 3 3V voltage Tek Stop M Pos 0 0005 SAVE REC Action Save Image File RENAL AE Format About dmm rr ent rn ru nel 4 Saving Images Select REPRE Folder Save 003 8 CH1 2 004 CH2 2 004 1 005 CH1 Z 21 3mV Current Folder is 2 Decode board ADIN waveform diagram Tek zi Stop M Pos 0 0005 SAVE REC Action Save Image File Format About 1 Saving Images Select Folder Save
35. GPIO InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPU InOut 4 16mA SRPD SMT InOut 4 16mA SRPD SMT InOut 4 16mA SRPD SMT InOut 4 16mA SRPD SMT InOut 4 16mA SRPD SMT InOut 4 16mA SRPD SMT InOut 4 16mA SRPD SMT InOut 4 16mA SRPD SMT InOut 4 16mA SRPD SMT InOut 4mA SRPD SMT InOut 4 16 SRPD SMT Microcontroller address 4 IO Microcontroller address 5 IO Microcontroller address 6 IO Microcontroller address 7 Flash address 16 Flash address 17 Flash address 18 Flash address 19 5 Flash address 20 6 While External Flash size lt 1MB 1 Alternate digital video YUV output 0 7 Flash address 21 8 While External Flash size 2MB 1 Digital video YUV output 7 1 GPIO Microcontroller address latch enable Flash output enable active low IO Flash write enable active low IO Flash chip select active low 10 Microcontroller write strobe active low Microcontroller read strobe active low Microcontroller port 1 2 S4 89 91 92 93 94 95 96 97 98 102 103 153 151 152 UP1 3 UP1 4 UP1 5 UP1 6 UP1 7 0 UPS 1 4 5 INTO ALRCK ABCK ACLK SCL SDA TXD YUV1 GPO YUVO GPIO YUVO GPIO InOut 4mA SRPD SMT InOut 4mA
36. It is specially applicable for audio system required wide dynamic range Hi Fi and low noise 2 Features Support all sampling frequency including 192 KHZ Dynamic range is 101dB when voltage is 5V 94 dB THD N Highpass filter may remove DC offset Low delay digital filter Power consumption is 90 milliwatt under 3 3V power supply A D inner core power supply voltage is 3 3V 5V Support 1 8V 5V logic level 84 Auto mode selection Compatible with CS5341 pin 3 Pin function of CS5340 is shown as the following table Pin Name Data direction Function Remark 1 MO Mode selection Decide the operation mode of element 2 MCLK Main clock A 5 clock source of adjustor and digital filter 3 VL Logic power supply Forward power supply of digital input output 4 SDOUT Series audio data output Two s complement of output series audio data 5 GND Analog 6 VD Digital power supply Provide forward power supply for digital part 7 SCLK Series clock Provide series clock for series audio interface 8 LRCK Left right Left right audio time sequence control clock 9 RST Reset Element enters a low consumption state when in low level 10 AINL Analog input 11 Static voltage 12 AINR Analog input 13 VA Analog power supply Provide forward power supply for analog part 14 REF GND Reference Provide reference ground for internal sampli
37. Kar help Volume Echo 2 3 7 Preference settings 1 Gr Equalizer Spectrum analyzer Options On Off Default option Gr Equalizer Off Standard Standard Background Screensaver Zoom Jog Dial Default option Off 2 Background selection of an image as TV screen wallpaper Options Standard Saved Default option Standard 3 Screen saver Screen saver on off Options On Off Default optioon On 4 Jog Dial Options Zoom Step Skip Volume Default Zoom Gr Equalizer Off Standard Standard Background Screensaver Zoom Jog Dial 2 3 8 Parental control 1 Category Setup of age restrictions to prevent children from seeing undesirable discs Options Any Kid G PG PG B PGR R NC 17 Default option Any Allowed Any Set password 2 Set password Setup ofa four digit password to change the level of age restrictions Default option 7890 Old password New password Verify 2 3 9 Initial setup menu Press the RIGHT keyof the cursor joystick to enter the initial setup menu then select the desired item using the jog Dial and press OK key for confirmation While being in this menu section you cannot return to the previous level by pressing the LEFT key of the cursor joystick 11 2 3 10 Reset to defaults Resetting all settings and restoring default options except age restrictions level and password Load factory setti
38. N3D 4 of tri state gate buffer open N3A and N4D close 1389 sends the digital audio signals SDA LR SDA SLSR SDA SCW SCLK LRCK to 5508 directly for formatting and the system clock MCLK of power amplifier board is provided by 1389 through pin 6 of XP207 after being converted by 55340 AD MIC signals are directly sent inside 1389 for processing and overlapped to left right channel to output together after processing when MO M1 is 1 0 through the selection of external input signal radio set and external audio input by the system N3D N4A N4B N3A of tri state gate buffer close opens after being converted by 55340 external audio signals are connected to SCLK LRCK SDA AD and sent to 5508 for format conversion and the system clock MCLK of power amplifier board is generated by external crystal oscillation Y3 N5 CD4052 CD4052 is a select switch which selects is the three path signals of external input tuning signal MIC signal and left right channel audio signal When the player is selecting the state of playing disc MIC signal can be gated Through CS5340 MIC signal converts to digital signal which inputs to decode board for processing and then output from pin 217 ASDATO of Mt1389 to power amplifier board Note the MIC signal through CS5340 does not pass through 4 74HCT 125 N7 CS5340 convert the analog signal sent out from CD4052 into digital signal for processing i
39. SMT InOut 2mA Output 4 16mA SR ON OFF Ground 1 Alternate digital video YUV output 0 GPIO 8 Audio serial data 0 Front Left Front Right 9 Trap value in power on reset 1 1 manufactory test mode 0 normal operation 10 While internal audio DAC used 1 Digital video YUV output 2 1 GPO 11 Audio serial data 1 Left Surround Right Surround 12 Trap value in power on reset 1 1 manufactory test mode Il 0 normal operation 13 While only 2 channels output 1 Digital video YUV output 4 1 GPO 14 Audio serial data 2 Center LFE 15 Trap value in power on reset 1 1 manufactory test mode 0 normal operation 16 While only 2 channels output 1 Digital video YUV output 5 17 Audio serial data 3 Center back Center left back Center right back in 6 1 or 7 1 mode 18 While only 2 channels output 1 Digital video YUV output 6 GPIO 19 Microphone serial input 20 While not support Microphone 1 Microcontroller external interrupt 2 Digital video YUV output 0 GPIO S PDIF output Ground pin for 2ch audio ADC circuitry S9 17 17 17 17 17 17 17 18 18 18 18 18 18 18 187 188 189 190 160 161 162 163 164 AKIN2 Analog om p omm mew Lo
40. amplifier board 28V power supply andthat on XP101 andthey are both normal check clock and itis also normal Step 2 check SDATAO SDATA1 SDATA2 on 2 3 4 of XS207 and they all have output which is normal Step 3 check pin 49 PWM CEN of N12 TAS5508 and it has no output you may also check other output pin check pin 28 29 31 audio signal input pin Of N12 TAS5508 all signals have input so we preliminarily judge that TAS5508 has trouble Step 4 check power supply of 55508 and it is normal After changing TAS5508 trouble is not removed 31 Step 5 use DC level of multimeter to test voltage on output terminal and find that voltage of SW and SW is 6 09V voltage of all other output is 14 02V and they are both 14V in normal conditions so we judge that capacitor of circuit between N13 55112 and output part has electric leakage change C139 C140 C141 C142 C143 C66 C71 but trouble is still not removed Step 6 after removing resistor R142 R143 voltage output of SW and SW is 14V which is normal We judge that one of R142 and R143 has trouble after changing it voltage of SW and SW changes to 6 02V and trouble is still not removed Step 7 after changing N13 TAS51 12 directly trouble is removed Conclusion N13 is damaged inside after connecting R142 R143 it will form loop with ground which will lead to abnormal working of N13 to make SD signal of pin 6 output low leve
41. board has electrical leakage or Check whether pin 14 ofN7 CS5340 has OK signalinput N Check the pathbetween OK signal on MIC board and short circuit Check whether pin 4 of N7 CS5340 has output Change CS5340 and check whether it is normal 1 Check the path between pin 4 ofN7 and pin 224 of Mt1389 2 Change MT1389 Figure 3 3 2 10 Troubleshooting flow chart for noecho in microphone 47 11 Troubleshooting process for no remote control function is shown as the following figure 3 3 2 11 No remote controlfunction remote controller is normal When pressing remote controller use oscillograph to check whether pin 1 offlat Check whether 5V power supply of pin 3 of N103 REMOT is normal Check the relevantpower supply circuit hen pressing P remote controller use Check the path between pin 11 oscillograph to check of U201 MT1389 and pin 1 of whether pin 11 of U201 XP201 When pressing remote controller check whether pin 1 ofN103 REMOT has output Check whether R124 has Figure 3 3 2 11 Troubleshooting flow chartfor no remote control function Change N103 REMOT 48 12 Troubleshooting process for there is sound but no image is shown as the following figure There is soundbut no image 3 3 2 12 One path hasno output Whether the corresponding pin of MT1389 has output
42. conducted ESM demodulation inside MT1389 and then sent to latter stage for decoding after finishing RSPC error correction inside General DVD player has a open close circuit which controls the in out action of door to reach the purpose of conveying discs PDVD player adopts manual means to open the door and you may judge whether door closes to proper position through detect switch 3 Explanation to servo terms 1 FOO because of the error in disc make when rotating disc may probably move upwards or downwards slightly to make the focus of laser emitted by pick up cannot justly fall on data pit of disc so pick up is required to move upwards downwards to make focus aim at data pit justly The main act is to make object lens move upwards and downwards 2 TRO data information is saved in disc in form oftracks When disc is rotating there will be track 18 Deviation now laser head is required to adjust In this process the object lens moves forwards Backwards and the moving range is very small 3 FMO similar to acts of trace the acts of feed are larger than those of trace Feed conducts a large scale movement firstly and then trace moves slightly in this range Feed moves for a while and does not move for another while but trace moves all the time Feed is rough adjustment and trace is fine The acts are obvious when opening and selecting track 4 it is the performance agency for main axis disc rotation Its r
43. digital audio output options Options RAW PCM When you select the RAW option the not decoded signal is sransferred to the DVD receivers digital outputs the decode signal is transferred to analog outputs Decoding is performed by the built in decoder of the DVD receiver This feature is meantto ensure that signal decoding at digital outputs is performed by an external device e g an amplifier If you select the PCM option a PCM coded signal will be transferred to the DVD receivers digital outputs b LPCM Set up of digital audio output options to comply with different amplifiers and receivers Options 48 kHz 16 bit 96kHz 24 bit Defacelt option 48kHz 16bit 3 Sound correction a Max volume max volume limiting Using the jog Dial adjust the max volume level Press the LEFT key of the cursor joystick to return to sound correction setup menu b Equalizer equalizer modes Options Rock Pop Live Dance Techno Classic Soft Default option c Echo echo effects Options Off Concert Living room Hall Bathroom Cave Arena Church Default option d Tone balance adjustment of tone balance level Adjust the tone balance level using the jog Dial Press the LEFT key of the cursor joystick to return to sound correction setup menu 2 3 5 Playback settings 1 DVD Advertisment skip skip the unskippable block while playing a DVD disc Options Yes number Edfaul
44. disc reading and power on picture mosaic Pin function is shown as the following table Pin Name Function Voltage when no disc Data direction 10 37 VCC 5V power supply 5V 78 Take word extend mode data line and bit 45 DQ15 A 1 extend mode as address line Select 8 bit or 16 bit output mode High level is 47 BYTE 16 01 output and low level is 8 bit output 3 5 4 Function introduction to D5954 D5954 is a servo drive IC with built in 4 channel drive circuit Digital focus trace feed and main axis drive signal outputted by MT1389 is sent to 05954 for amplifying through RC integration circuit The focus trace feed and main axis drive signal being amplified by D5954 is sent to MT1389 to fulfil the Voltage when DVD disc disc voltage Pin Name Function no disc V voltage V 20 Trace feedback signal input 3 73 2 5 2 53 79 21 PVCC2 5V power supply 5 38 5 08 5 07 28 5 Enable control signal 0 3 18 3 19 3 5 5 Function introduction to 2411 C020 1 State memorizer 24LLCO2 U202 is a writable and programmable read only memorizer with its casing and pin function shown as the following figure 3 5 5 1 8 lead SOIC Pin Configurations Name Function Serial Data Serial Clock Input we Power Supply Figure 3 5 5 1 Casing and pin function intro
45. gating conditions are shown as the following table A B OUTPUT 0 0 unused 0 1 MIC microphone 1 0 AUX external audio input TUNER headphone 83 3 5 8 Function introduction to 5 6588 SAA6588 tuning data processing chip and pin function are shown as the following table Data Data Pin Name Function Remark Pin Name Function Remark direction direction Multi path rectifier output unused PSWN Pause switch output unused Multi path detector output unused MAD Attached address input Ground Detect control signal Ground AFIN Audio signal input unused Clock signal input VDDA Analog power supply voltage Clock signal output VSSA Analog Digital MPX Multiple signal input Digital power supply voltage VREF Reference voltage output Data effective output SCOUT Wave path filtering output Series control data CIN Comparator input input output Series control clock input 20 LVIN Standard input terminal unused 3 5 9 Function introduction to CS5340 1 Description CS5340 is a kind of complete A D converter used in digital audio system It has sampling A D conversion and anti aliasing filtering function and can generate 24 bit sampling frequency to left and right channels with serial value of each channel up to 2000 KHz A 5 step multi bit DELTA SIGMA modulator is adopted with digital filtering and simplification function so external anti aliasing filter is not needed
46. in voltage position and test power supply voltage of the player and voltage of a certain point to judge the trouble spot according to the tested voltage variation 1 2 4 Current method Set the multimeter in current position and test current of the player of a certain point to judge the trouble spot But when testing in current method the multimeter should be series connected in the circuit which makes this method too trivial and troublesome so it isless frequently used in reality 1 2 5 Cutting method Cutting method should be combined with electric resistance method and voltage method to use This method is mainly used in phenomena of short circuit and current leakage of the circuit When cutting the input terminal voltage of a certain level if voltage of the player rises again it means that the trouble lies in this level 1 2 6 Element substitution method When some elements cannot be judged good or bad substitution method may de adopted directly 1 2 7 Comparison method A same good PC board is usually used to test the correct voltage and waveform Compared these data with those tested through fault PC board the cause of troubles may be found Through the above maintenance method theoretical knowledge and maintenance experience all difficulties and troubles will be readily solved 1 3 Required device for maintenance Digital oscillograph 2100MHE TV set SMD rework station Multimeter Soldering iron Po
47. of button function when users are operating machine button matrix circuit will produce a button information and recognise button through S0793 to produce button function code to transmit to the main CPU inside decode chip CPU performs the corresponding switch to the function module inside system and a signal will produce to control OSD and panel display part to make the corresponding display 2 Panel display drive when the serial data signals conveyed by decode chip is transmitting to panel IC 50793 IC performs VFD drive according to the information conveyed by decode and displays the corresponding content controlled by software 3 Panel light control light LED2 controls power switch indicator light and it is high level after power on LED1 controls open close button indicator light after power on low level is outputted to lighten VD105 square wave signal is outputted when disc out and discreading VD105 flashes itis high level when playing normally VD105 turns out 3 2 6 Power circuit 1 Power circuit block diagram is shown in the following figure 3 2 6 1 Rectification diode Filtering circuit oleu6euoJloel3 Absorption P 28V loop Filtering eBpug Rectification diode Feedback loop J9ul10JsueJ Switch module 5V voltage regulator Absorption loop JeulJoJsueJ
48. to adjust the echo function of the microphone MEM button Press to memorize the point where playback was 2 3 FUNCTION SETTINGS 2 3 1 Function selection and change Press the SETUP key to show the setup menu You will see the following image on the screen as shown onthe figure Select the desired menu item usingthe jog Dial Press OK confirmation Language Menu Ld Image Sound Playback DVD menu Sound track Subtitles off Preference Parental control Initial help Reset settings Exit 1 For example if you wish to change the image sellings you have to select the Image item and press the OK or GIGHT key ofthe cursor joystick TV system TV scan mode TV format Video output Sharpness Gamma Brightness Contrast Hue Saturation 2 Using the jog Dial select the desired item and press OK or RIGHT key of the cursor joystick Fox example select the Sharpness item Settings will appear on the screen Then select the desired sharpness level and press OK for confirmation 3 Press LEFT key ofthe cursor joystick for exit to previous menu level 4 Press SETUP to exit setup menu TV system TV scan mode TV format Video output Sharpness Gamma Brightness Contrast Hue Saturation 2 3 2 Language settings 1 Menu interface language setup Options Russian English Ukrainian Default option English Setup menu DVD menu Soundtrack Subtitles 2 DVD menu Selection of disc
49. when no microphone holder has problem tocause is inserted HDET to producelow level high level whenin normal condition N Change MT1389 Check whether 110f has digital waveform Check whether it is mute Check whether status mute control signal MUT Whether capacitor on on pin 1401 5207 MUTE circuit of mute is high level control signal has electric leakage 3 Others Check the clock circuit of YT Y3 Check whether pin 50 510f N12 TAS5508 has digital waveform Check whether R98 is normal 1 Check whether crystal oscillator Y3 is 12 2MHz 2 Check whether crystal oscillator Y 1 is 13 5 2 Y Change N12 TAS5508 1 Check whetherthe capacitor Check whether on N12 TAS5508 reset signal Check whether RST reset signalof pin 1 RST line haselectric leakage R202 R203 are Change of Xs207 ishigh or short circuit normal level 3 3V 2 Change MT1389 Change N14 TAS5112 Use oscillograph to check whether 3DATAD signal on pin 210f Xs207 has digital waveform when playing Change MT1389 Reset N12 55508 forciblyand check whether it is normal Change 5508 has digital waveform If repeat power on off is normal this playeris normal If there isno sound when power on again you need to change MT1389 Change N13 N14 7AS5112 andcheck whethe they are normal Check power su
50. which is normal reset by force use alead to make pin 6 of 0205 HCUO04 grounding for about one second nut power is still not on so we can preliminarily decide that it has nothing to do with reset circuit Step 4 check power supply of MT1389 according to the troubleshooting process and it is normal check power supply of 0214 FLASH 0211 SDRAM and it is normal check 5 and pin 6 of I2C 0202 and they are both at 2 5V which is also normal Step 5 after changing FLASH trouble is removed Conclusion if there is oscillograph firstly check whether pin 29 of FLASH has waveform if not a trouble may exist between MT1389 and FLASH If there is no oscillograph firstly consider changing FLASH then changing SDRAM if trouble is still not removed then consider changing 1389 239 2 Example 9 Power not on Analysis and troubleshooting Step 1 check power supply of power board and find that power has no voltage output unplug flat cable on power board and there is still no voltage output on power board 60 we can confirm that trouble lies in power board Step 2 observe element on power board and find that 0505 0880 is burnt down then check fuse and find thatfuse has been burntdown Step 3 use multimeter to test bridge circuit BD501 and find no abnormality pay attention to the pin sequence of BD501 Step 4 change fuse and 0505 0880 and trouble is removed Conclusion when servicing power board if yo
51. 0 S Video output SCART type AV connector Coaxial digital audio output Optical digital audio output Optical digital audio input 19 Coaxial digital audio input PMD SVCDAM MEM KHZ MHZ eo MP3 disc CD VCD or SVCD disc Dolby Digital DVD disc radio station Repeat Friquency Q QD Playback time Radio tuning mode Tuner tuning mode Stereo 2 2 4 Remote control general view EJECT button Press to open close the disc tray DVD button Press to switch to DVD mode AUDIO button Press t switch to audio input mode DISP button Press to display the disc information LANG button Press to change the canuage SLEEP button Press to turn the sleep mode on a PLAY button Press to tum the Q play mode on EQ button Press to adjust the equalizer Chapters or tracks Playback or pause PBC BASS button Press to adjust subwoofer BOOST button Press to bass boosting BROWSER button Press to turn on off browser function JOG DIAL wheel Functions are set manually Default function zoom SETUP button Press to switch to setup mode Q Button Press to capture and bookmark image for the wallpaper Button Press to start reverse or forward scanning Cio 58 KAR
52. 01 pmo cs pss ks 256 00 47pF 1208 1218 FV33 FBSMT DV33 DV33 FBSMT SD33 4 C2140 cna e ens ena 2148 02146 2147 2148 2149 C2150 2151 2152 2153 279 TC219 104 104 104 104 104 104 104 104 104 104 d I 1 w f e I 1 1 104 I 104 A 1209 os TC216 DNS 100uF 16V 0206 uon 1 1117 4 ice __ 268 269 12 1216 215 1207 DV33 1216 4 C280 R245 47uF 16V DNS 104 104 104 TC217 100R 1 10uF 16V DNS 104 vGND 39733 R229 OR DNS 8203 1 4 L219 C282 C281 2 TC218 3 DV33 1 105 103 220uF 16V 4 GND 1 958 10 ASPDIF 5 AVCC C264 C265 R230 R231 XS05 OR 0205 U205F 98 19 HCU04 HCUO4 KAE TC214 220uF I6V 220uF 16V 89V33 2 8202 FV33 504 0 5 T U205A R217 SR 45 1 2 Rs i o 2 R218 1217 lel esl S ais don 10R DNS 2 7uH DNS Sg 5 5 R212 200 ETE Dy33 OR DNS 4 275 201 C276 Z pF DNS 27pF 27MHz 27 R242 4 7K DNS R2011 2215 14148 R2025 Q320 R2022 15 6 OR DNS 2024 E U205C 33R HCU04 C1004 4 4 102 URST vec
53. 0140 CABLE SOCKET 14P 1 0mm DUAL RANK STRAIGHT XS207 INSERT 1940065 SOCKET 1 2 0mm XS206 1940005 SOCKET 6P 2 0mm 5303 5201 1940024 SOCKET 5P 2 0mm XS302 1940004 SOCKET 5P 2 5mm XS203 SMD RESISTOR 1 16W 100x596 0603 SMD RESISTOR 1 16W 330x596 0603 SMD RESISTOR 1 16W 750x596 0603 SMD RESISTOR 1 16W 1 5 5 0603 SMD RESISTOR 1 16W 3300 5 0603 SMD RESISTOR 1 16W 5100 5 0603 SMD RESISTOR 1 16W 5600 5 0603 SMD RESISTOR 1 16W 1K 5 0603 SMD RESISTOR 1 16W 4 7 5 0603 R201 R309 R311 R313 R314 R329 R330 R 5 SMD RESISTOR 1 16W 10 5 0603 339 R364 R2002 0090024 SMD RESISTOR 1 16W 15 5 0603 R202 R211 0090188 SMD RESISTOR 1 16W 18 5 0603 SMD RESISTOR 1 16W 20K 5 0603 SMD RESISTOR 1 16W 47K 5 0603 SMD RESISTOR 1 16W 56K 5 0603 SMD RESISTOR 1 16W 150 5 0603 SMD RESISTOR 1 16W 750 5 0603 PRECISION SMD RESISTOR 116 10004196 0603 PRECISION SMD RESISTOR 1 16W 2000 1 0603 115 0960020 0090272 0090106 0090003 0090005 0090006 0090016 0090009 0090249 0090012 0090014 0090019 0090023 0090025 0090029 0090030 0090197 0090211 0090212 0090609 0090626 CMETAL OXIDE FILM RESISTORSTAL OSCILLATOR 0090001 5 RESISTOR seme mm 0310048 SMD CAPACITOR 50V 151x596 NPO 0603 0310052 CAPACITOR 50V 391x596 NPO 0603 207 209 211 214 216 217 225 227 234 239 241 246 254 260 0310207 SMD CAP
54. 206 has short circuit to ground or resistance changes small N Change U206 LM1117MP ADJ 1 Check whether pin 37 of U207 FLASH has 3 3V 2 Whether pin 1 of U208 SDRAM has 3 3V 3 Check whetherpin 14 of 0205 HCU04 has3 3V 4 Whether pin 8 of U202 24LLC02 has 3 3V TC218 2 Whether C2311C2321C233Y C234C235 has electric leakage or short circuit Change U206 and check whetherit is ok N Change U201 MT1389 Check whether conductor on 3 3V powersupply circuit is normal Refer to troubleshooting process of resetcircuit Change Q320 and whether it isok Change Vd2151 andcheck whether it is ok Check whether pin 5of 0205 HCU04 is low level Check whether pin 6 of 0205 OHCU04 has 3 3V Use oscillograph to test whether twoends of X201 are27MHZ frequency Change crystal oscillator 1 Change U205and check X201 and check whether it isok whether it is 2 Check relevantelement ok of reset circuit Use oscillograph to check whether pin 9 of U207has pulse Whether power is in after reset byforce Change U201 MT1389 and check whether it is ok Change U207 flash andcheck whether it isok Change U208 SDRAM Note 1 usea lead to ground any endof R256 for about 1 second Refer to reset
55. 3 0310222 0310191 0090029 0090233 0090002 SMD RESISTOR 1 16W 2 20 5 0603 R5 D2 SMD DIODE 1N4148 V CERAMIC RESONATOR 2 0MHz G1 0700007 0970008 21124 LIGHT TOUCH SWITCH FIVE 1340190 DIRECTION SKQUCAA010 RP2 0780085 SMD TRIODE 3031855 RC 073 BLACK 3041406 RC 073 BLACK 3051348 RC 073 BLACK 3051349 RC 073 MING PURPLE 3850125 026 3850126 026 3072572 073 3072570 RC 073 BLACK 4000179 SELF TAPPING SCREW PB 2x8 BLACK 0890292 PROGRAM CPU CPURCO7S3RU 0 CONDUCT GLUE OF REMOTE 4631938 CONTROL UPPER CONDUCT GLUE OF CONTROL LOWER UE OH 4631059 073 ENVIRONMENTAL 50 1274 PROTEETION WITHOUT 2 5 9 a 2 S 5 o a 70 DVD HOME THEATER DK1410SI RU I O TI EARPHONE BOARD 0 0 0 5446196 0310207 50 104 20 X7R 0603 0310543 capacitor 5 104 10 X7R 0603 EARPHONE 1980061 CKX 3 5 01K CK1EARPHONE 1940006 6P 2 5mm 0620040 3B 4SC WHITE ISSUE BLUE 1631900 pce DVD HOME THEATER DK1410SI RU 5106 EARPHONE VD106 VD107 EARPHONE EARPHONE 118 5232691 SURFACE CONTROL BOARD PCB SEMI FINISHED 5445683 PRODUCT 6DVR938 5 SMD DK1010S 2 DVD HOME THEATER DK1410SI RU SURFACE CONTROL BOARD 5445683 0090149 SMD RESISTOR 1 10W 470 5 0805 R122 0090193 SMD RESISTOR 1 16W 82 5 0603 R120 0090181 SMD RESI
56. 3 1 2 1 except that power board is not shown other signal flow is basically shown the figure The main function of loader is to read disc information and send to MT1389 MT1389 finishes servo function through D5954 on decode board and other supplementary circuit other circuits are used to guarantee the normal working of loader FLASH on decode board is to store system program SDRAM is to store program and information of sound and picture read from disc when the machine is working and guarantee their normal output The main function of power amplifier board is to perform audio DA conversion and amplification of analog signal to output 5 1CH to guarantee the normal working of external speaker The main function of AV board is to output various audio and video signals This player is attached with headphone and microphone to meet requirements from customers In addition there is external sound input and you may use the power amplifier board of this player to perform power amplifying to it tofacilitate to output to speaker Thetuner of this player also makes it have tuning function and it also equipped with 5 6558 chip so it may realize RDS function of Europe and RBDS function of US GL Je Aeld eu jo L Z Le 1014 SCART Video S video Optial Coaxial Pr Pb mu 22H XLNOY O3GIA Rear Rear Woofer Center uu des 5 2 22
57. 7K 45 SHAPED FLAT 15x7 2W68KL5 SHAPED FLAT 15x7 R504 R512 R521 R509 R508 R520 R501 R529 R518 R519 R516 R515 R502 R525 METAL OXIDE FILM 0010263 RESISTOR 2W75K 5 SHAPED FLAT 15x7 R503 R524 3W1K 5 SHAPED VERTICAL 7 5 1W1000 5 SHAPED VERTICAL 7 5 112 R530 R527 504 507 509 511 512 518 519 513 520 C503 MATERIAL CODE 0200138 0200224 0210158 0210024 0210148 0210204 0200353 0260749 0260664 0260653 0260597 0260654 0260558 0260665 0260667 0260663 0260666 0260601 0260668 0260751 0390154 0390340 0410010 0410011 1000010 0460513 0460514 0460515 0680065 0570006 0570013 O 000000 CI RN NN e CIT SWITCH POWER BE ANSEGEMER BCK 28 0563 VDE T501 SWITCH POWER 40 0244 VDE T5020 110 sme nm DIODE L7805CV GOLD SEALED TO 220 C 0880247 0880499 LM431ACZ TO 92 KA1MO880BTU TO 3P 5L 1030007 7D 47151096 5mm 1050002 NTC SCK 104MS 20 DIODE menm voce eh pineon 7 C 0880765 0880863 0882041 0880553 0881500 4000564 SELF TAPPING SCREW PWT 3x12x7H WHITE NICKEL 4000627 SELF TAPPING SCREW PWT 2 6x6x5H BLACK ZINC 114 MATERIAL SPECIFICATIONS LOCATION DVD HOME THEATER DK1410SI RU DECODE BOARDO 0 0 0 2DK1410S 0 1 2Ver2 1 27 00MHz 49 S X201 194
58. ACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD MAGNETIC BEADS SMD DIODE R30 R31 R32 R33 R130 R131 R132 R185 17 18 95 96 118 124 C6 C76 C77 C100 C102 C156 C191 C196 73 148 153 163 164 171 50V 10241095 7 0603 ea 40 41 44 46 47 50 53 64 66 68 71 93 137 138 142 143 17 0 174 178 182 187 188 50V 10351096 X7R 0603 9 013 22 24 26 31 48 049 51 52 55 56 59 61 67 72 74 75 C78 C80 C82 C83 C88 C99 C103 C105 C1 07 109 114 116 119 123 126 12 7 179 199 200 201 202 203 204 206 2081 0000 50 104 20 7 0603 9 013 22 24 26 31 48 049 51 52 55 56 59 61 67 72 74 75 C78 C80 C82 C83 C88 C99 C103 C105 C1 07 109 114 116 119 0123 126 12 7 179 199 200 201 202 203 204 C206 C208 0000 NN o 50V 104 10 X7R 0603 1N4148 VD1 VD5 VD6 VD7 CS5340 TSSOP N7 PT2579 SN SOP 150 0000 123 MATERIAL CODE 00006239 CARBON FILM RESISTOR 1 2W2200 5 BELT CARBON FILM RESISTOR 1 2W1500 5 BELT RP CARBON FILM RESISTOR 1 2W470 5 BELT METAL POLYESTER FILMCAPACITOR CL21X 100V 104K C5 BELT C140 C141 METAL POLYESTER FILMCAPACITOR CL23X 63V 474x596 5 BELT 42 43 45 90 139 0184 CD11 16V4 7Ux20965x11C5 BELT C84 C87 C91 C92
59. ACITOR 50V 104 20 X7R 0603 261 264 269 274 279 280 301 303 305 313 319 2000 2001 21 40 21531 000 9 207 209 211 214 216 217 225 227 234 239 241 246 254 260 0310543 5 CAPACITOR 50V 10431096 X7R 0603 261 264 269 274 279 280 301 303 305 313 319 2000 2001 21 40 C2153 000 9 0310234 16V 105 80 20 Y5V 0603 0310067 50V 15241096 X7R 0603 0 0310056 16V 47311096 X7R 0603 0310362 16V474 8095 2096 Y5V 0603 Pee _ _ 0310566 SMD CAPACITOR 10V 225 80 20 Y5V 0603 1003 0390355 SMD INDUCTOR 4 7UH 10 1608 L202 L205 L311 L314 L201 L203 L206 L208 L221 L224 L301 L3 0390095 SMD MAGNETIC BEADS FCM1608K 221T05 04 L306 L308 L313 L315 L316 L350 L371 L373 L387 116 MATERIAL CODE SMD TRIODE 3904 100 300 SOT 23 00003759 CARBON FILM RESISTOR 1 4W2 20 5 BELT CD11 16 2201 20 6 12 C5 BELT cw EM Cele MAGNETIC BEADS INDUCTOR RH354708 BELT 1213 1216 1218 1219 INDUCTOR 330UH 10 0410 BELT L204 DVD HOME THEATER DK1410SI RU 0780040 0780193 0780115 0882756 0880165 0880322 0880513 0882262 0882559 0881182 0881969 0882461 0881031 0882643 02604379 02600029 02601889 02601819 03900579 03904299 REMOTE CONEROL 5471746 SMD CAPACITOR 25V 104 20 X7R 0603 C5 SMD CAPACITOR 50V 5 NPO 0603 C1 C2 SMD RESISTOR 1 16W 4 7MO 5 060
60. AOKE 6 gt 55 lt i ee stopped playback from the previously meorized point button Press to switch to HDMI mode SUBT button Press to change the subtitles language ANGLE button Press to change the camera angel RADIO button Press to switch to radio mode KARAOKE button Press to set the karaoke functions QD USB button Press to switch to USB mode Button Press to switch the device on into standby OG 6 Q SKIP RESET 4 Press to switch between files on disc tuned radio stations A B buttons Press to repeat the selected portion REPEAT button Press to repeat playback button Press to change the acoustic channel MUTE button Press to change the acoustic channel VOLUME button Press to adjust the volume SLOW button Press to switch to slow down the playback PLAY PAUSE button Press to play pause the playback STOP button Press to stop the playback Button Press to turn on offthe virtual control panel CANCEL button Press to go onelevel back cancel current operation OK button Press OK for confirmation ofuse it like joystick during navigating in MENU MENU button DVD disc menu PBC function GOTO button Press to playback from the target place Numeric buttons ST 5 1 button Press to switch between STEREO 5 11CH TREBLE button Press to adjust the tone ECHO button Press
61. DK1410SI DK1440SI 4 705 4805 service manual Catalog Chapter One About Maintenance eee eee 1 1 Safety precautions eee nennen 1 1 1 Power supply reU Uem UTI 124 14 3 Precautions forlaser head _____________________ 1 1 4 About placement position eee 1 2 Maintenance method en E Mi tex bei 1 21 Visualized method i22 Electicresistancemethod 1 2 3 Voltage method 1 2 5 Cutting method ______________ 1 2 6 Element substitution Method 1 2 7 Comparison method eene nennen 1 3 Required device for maintenance M Chapter Two Functions and Operation Instructions RESTE T E Imm Ve NIU A 2 2 1 Front panel controls eee eem 2 2 2 Rear panel connections eee 2 2 3 display general vigw 2 2 4 Remote control general view 2 3 FUNCTION SETTINGS eger deri a Va qa PET RE d 2 3 1 Function selection and change eem tenen edente eene tene 2 3 2 Language settings 22 2 3 3 Image settings MENU 6 012262 722722227 ee 2 3 5 Playback settings ____ _____ ___ et ee 2 3 6 settings menu e e M Henne
62. Embedded 2ch Audio ADC for Karaoke High Performance Audio Processor High Performance Progressive Video Processor Support Nero Digital High Quality 108MHz 12 bit 4 CH TV Encoder 3 General Feature lists 1 Integration DVD player single chip High performance analog RF amplifier Servo controller and data channel processing MPEG 1 MPEG 2 JPEG video Dolby AC 3 DTS Decoder Unified memory architecture 63 Versatile video scaling 8 quality enhancement OSD amp Sub picture Built in clock generator Built in high quality TV encoder Built in progressive video processor Audio effect post processor Built in 5 1 ch Audio DAC Built in 2 ch Audio ADC for Karaoke 2 High Performance Analog RF Amplifier Programmable fc Dual automatic laser power control Defect and blank detection HF level signal generator 3 Speed Performance on Servo Channel Decoding DVD ROM up to 4XS CD ROM up to 24 5 4 Channel Data Processor Digital data slicer for small jitter capability Built in high performance data PLL for channel data demodulation EFM EFM data demodulation Enhanced channel data frame sync protection amp DVD ROM sector sync protection 5 Servo Control and Spindle Motor Control Programmable frequency error gain and phase error gain of spindle PLL to control spindle motor on CLV and CAV mode Built in ADCs and DACs for digital servo control Provide 2 general PWM Tray control can be PWM output or digital output 6 Embed
63. FMSO 470 6 23 R312 20K 3 151 VNFTK 1 VCC VINFFC VOSL VINSL VINSL CF2 VINFC BA5954 SO R209 15K 38 TRSO 18K 1389 210 FOSO 41 oo 42 210 213 153 a ea ee 330pF VIP4 ed 104 Figure 3 3 1 5 Servo drive circuitdiagram Example 18 No disc reading Analysis and troubleshooting Step 1 check 301 flat cable and socket and there is no abnormality Step 2 change loader and trouble still exists Step 3 check power supply observe laser head main axis and they are both normal but bu fucus Step 4 check BA5954 power supply and reference voltage and they are both normal Step 5 check MT1389 power supply and itis normal Step 6 check the path between 42 of MT1389 focus error signal output and pin 1 of BA5954 and find that there is capacitor electric leakage among C210 C211 C212 and C213 change one by one and find that after changing C213 trouble is removed which means that C213 has electric leakage 37 3 3 2Troubleshooting flow chart 1 Troubleshooting process for voltage too high or too low is shown as the following figure 3 3 2 1 Voltage toohigh or toolow outputs toohigh or T 2 iic Multiple outputs toohigh toolow Change Check whether R513 C513 R509 and R508 are normal
64. HII emen 2 3 7 Preference settings ____ _ ___ ________ _ _____ _ Rd 10 11 2 3 9 Initial setup Menu eee emere ees 11 OA 4 Reet RAT 11 2 3 11 Exit settings en 11 2 3 12 delay set up 11 Chapter Three Principle and Servicing e 14 Section One Principle ofthe Player eee 14 3AA Function introduction ___ atit eee 14 3 1 2 Block diagram principle of the player memet exten tem 14 Section Two Unit Circuit Principle eee 16 29 4 ee 16 duc Sewo circuit a 17 3 2 3 Laser power control circuit 19 20 3 2 5 Control panel circuit 21 32 6 Powercircuit 1222272722712227 112277 2227 2 227 172777 7 22 22 3 2 7 Audio power amplifying Circuit eem emen emnes 24 3 2 8 Output circuit veste 26 ETER 28 Section Three Servicing Cases esee 30 3 3 1 Servicing cases sees 30 3 3 2Troubleshooting flow Chart ttn 38 Section Four Servicing Parameters ORAM E RE 58 3 4 1 Signal waveform diagram 58 3 4 2 Key point voltage memes 61 Section Five Function 7 277 63 3 514 function introduction to MTIZ89E eee e ______ __ __ 63 3 5 2 Function introduction to SDRAM
65. IC MT1389E and drive circuit D5954 in which MT1389E is also the main composition of decode circuit at the same time shown in the figure 3 2 2 1 Switch circuit APC circuit XS101 ABCDEF RFO 2 2 1389 Feed electric machine Main axis electric machine Open close circuit Main axis control detect circuit Figure 3 2 2 1 Servo circuit blockdiagram 2 Working principle After powering on or closing to proper position on loader frame for general DVD player on PCB board of below part of card door for PDVD player loader lens begins to reset after laser head is on proper position detect switch will give a signal to MT1389 MT1389 begins to output focus main axis and light emission signals disc begins to rotate laser head begins to recognise disc information and judges whether disc is CD or DVD according to disc information to facilitate to output level from IOA pin to control disc switch circuit and laser head PDIC to make the corresponding control acts At the same time Mt1389 adjusts laseroutput power through laser power control circuit After loader reading disc information through photoelectric conversion A B C D E F signals are formed to give to MT1389 DVD only has B D signals and then inputted from pin 2 11 18 19 of MT1389 After being amplified and processed by the pre amplifier inside MT1389 now signals are separated to two part 5 for processing inside
66. MT1389 After being added amplifying and through subtraction circuit one part of signals produce servo error signals and form the corresponding servo control signal after being processed by digital servo signal circuit and output FOO TRO DMO FMO servo control signals from pin 42 pin 41 pin 37 pin 38 of MT1389 respectively through the integration circuit composed by resistor and capacitor FOSO TRSO DMSO FMSO signals are sentto servo drive circuit for amplifying and then brings along fucus coil trace col main axis electric machine and feed electric machine after drive amplifying Among these focus and trace servo are used to correct objective position accurately feed servo 1 used to bring along laser head to make radial large scale move which belongs to the preliminary adjustment to pick up position and main axis servo is used to control main axis electric machine to make it read signals in means of constant linear velocity and bring along disc to rotate After processing of amplification by VGA voltage control amplifier and equalization frequency compensation inside MT1389 another part of signals are changed into digital signals through internal A D converter When loader is reading CD VCD signals these signals are conducted EFM demodulation inside MT1389 and then outputted to latter stage for AV decoding after finishing CIRC Cross Interleaved Reed Solomon Code error correction inside When loader is reading DVD signals these signals are
67. R 1 16W 5 10 5 0603 SMD RESISTOR 1 16W 100 5 0603 R24 R25 R89 R116 R137 R175 0090004 0090004 smD RESISTOR 1 16W 220 5 0603 R115 101 R225 SMD RESISTOR 1 16W 2200 5 0603 R76 R79 R81 R83 R102 R103 R105 R110 0090019 SMD RESISTOR 1 16W 4 7 5 0603 R111 R138 R139 R156 R230 R38 R42 R44 48 191 21 0090020 SMD RESISTOR 1 16W 5 1 5 0603 R43 R45 R49 R90 R58 R192 0090022 SMD RESISTOR 1 16W 8 2 5 ME R6 R16 R54 R55 R57 R60 R61 R84 R87 R 0090023 SMD RESISTOR 1 16 10 5 0603 92 8117 8119 8121 8142 8143 8150 81 53 R163 R164 R166 R168 R170 R171 0090187 SMD RESISTOR 1 16 12 5 0603 R14R18 8172 8176 8180 8183 8193 8173 8177 8 0090025 SMD RESISTOR 1 16W 20 5 0603 0090026 SMD RESISTOR 1 16 22 5 0603 R17 R165 0090027 SMD RESISTOR 1 16W 27 5 0603 R106 R109 R157 R158 R161 R162 122 MATERIAL NAME SPECIFICATIONS LOCATION SMD RESISTOR 1 16W 47 5 0603 R114 R169 0090029 0090201 0090109 0090147 0090039 0310046 0310042 0310045 0310047 0310049 0310051 0310196 0310471 0310054 0310066 0310072 0310207 0310543 0310112 0310234 0310673 0310169 0390095 0700007 0882353 0882946 SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAP
68. STOR 1 16W 1000 5 0603 R123 R126 0090019 SMD RESISTOR 1 16W 4 7 5 0603 R115 R116 R127 R128 R129 119 MATERIAL CODE 0090023 0310066 0310207 0310543 0310195 1632035 SMD RESISTOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR PCB DVD HOME THEATER DK1410SI RU INPUT OUTPUT BOARD MAGNETIC BEADS 0390057 0780028 1910158 1910182 1860059 1910159 1090024 1090077 1090045 2150286 2121533 0090005 0090006 0090008 0090009 0090014 0090017 0090019 0090034 0090238 0310045 0310066 0310085 INDUCTOR TRIODE 5447889 TERMINAL SOCKET TERMINAL SOCKET SCART SOCKET TERMINAL SOCKET FLAT CABLE SOFT FLAT CABLE SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD CAPACITOR SMD CAPACITOR MATERIAL NAME SPECIFICATIONS LOCATION i SOM arano L100 L102 L105 L118 L122 8050C 120 200 TO 92 V100 V102 NEEDLE TOGETHER DIRECTION NEEDLE TOGETHER DIRECTION 50V 47 5 NPO 0603 C108 C117 50V 102 10 X7R 0603 102 103 118 119 SMD CAPACITOR 50V 20 5 NPO 0603 C121 C126 C183 C188 120 ewe 11 0390096 SMD INDUCTOR 1 80 1096 1608 L106 L107 L110 L111 L114 L116 0700007 SMD DIODE 1N4148 VD100 VD111 DVD HOME THEATER DK1410SI RU 5447884 3W1K 5 SHAPED 20x8 R198
69. TAS5112 5 A 12V 12V supply power for audio power amplifying chip N1 F4558 N10 RC4580 N11 RC4580 on power amplifier board A 12V supply power fortuning data processing chip N6 6558 and tuner 6 D 3V3 supply power for U201 MT1389 0214 FLASH 0211 SDRAM U205 74HCU04 7 A 5V pin 5 of XP203 supply power for loader 8 A 5V pin 1 2 of XS504 supply power for power amplifier board ADC chip N7 CS5340 and digital audio pulse modulating chip N12 TAS5508 9 A 5V pin 4 of XS504 supply power for power amplifier board data selection chip N5 CD4052 and audio power amplifying chip N8 N9 TLV272 3 2 7 Audio power amplifying circuit 1 Audio power amplifying circuit block diagram is shown inthe following figure 3 2 7 1 Surround left right channel N7 subwoofer channel output CS5340 on power amplifierboard Front left right channel centre channel outputon power amplifier board Left channel LD AV board left right channel output Right channel RO Headphone output N13 TAS5112 gt gt gt TLV272 N9 L TLV272 N10 4580 TAS5508PAG Figure 3 2 7 1 Audio power amplifying circuit block diagram 24 2 Working principle the system switches DVD signal and external input signal through the control of N3 N4 by MO M1 When MO 1 is O 1 through the selection of DVD signal bu system N3B N3C
70. V 5 s 4 D 472 4 4 4 1 101 aanw 4 6 3 C510 H GND 3 D mm 4 P HGND T 1566 1 a R512 XC502 10uH 1A R528 8505 758 28 0563 A i 4 i D506 1 1 430R 0 5W AN 3 ERI0S 509 3371W 104 E C502 TC502 IN4148 1000uF 10V 1 1 1 lt DGND gt F m 2 4 z 104 lu 47uE 50V 511 psu x 5 501 Acsi 10R 0 5W I 220uF 10V JBL2822 400 102 gt D507 T HERIOS T lt gt 3 5 DVPP D gnd 101 R507 R509 R511 C503 223 10K 47K 220R AN i 1 xcsoi 220uF 35V 104 1 SLO3SOR 1 AN C513 AN RV501 102 21501 07D471 5 1 0 R501 s 680K 1W 1 RSS 1 514 HS817 501 1 A T3 15A 250V 0503 8 8510 12K TL431 XS502 5501 Switch 220V prog AAMOd 96 Chapter six List MATERIAL NAME SPECIFICATIONS LOCATION DVD HOME THEATER DK1410SI RU POWER BOARD 00000 00 5447883 1 4W470 5 SHAPED 10 1 4W750 5 SHAPED 10 1 4W220045 SHAPED 10 1 4W1 5Kt5 SHAPED 10 1 4 4 7 5 SHAPED 10 1 4W10K45 SHAPED 10 R517 R505 R511 R513 R523 R510 R507 0000301 CARBON FILM RESISTOR 1 4W47K 5 SHAPED 10 R506 R522 0000310 CARBON FILM RESISTOR 1 4W1MO 5 SHAPED 10 1 2W 4300 5 SHAPED 12 5 1 4W2 2K 1 SHAPED 10 1 4W4 7K41 SHAPED 10 1 4W12K 1 SHAPED 10 1 4W24K 1 SHAPED 10 1 2 220 5 SHAPED 12 5 1W33045 SHAPED VERTICAL 7 5 2W4
71. VD107 L107 1 8uH 1 4148 VID EO C D106 1N4148 16 109 47P D45V VD105 1 u Y L110 1 8uH 1 4148 VIDIO COMP 3 R107 D 75R c110 ct Rf yu 1 4148 Y 7 Ye 5 HSYNC D amp 5V hos XC104B a 2 194148 2 R108 t 758 lt 112 102 1104 ATP IM 144 148 POO 7 1105 m 3 5 2 1114 1 8uH 3 rrr C105 2247 106 VD100 TORX178A spos 1N4148 D 5V VD111 L1161 8uH Y6 1N4148 R110 114148 ime MO Exodi 4TP figure 3 2 9 3 Video circuit diagram 29 Section Three Servicing Cases 3 3 1 Servicing cases Example 1 Mixed left channel on AV board has no sound Analysis and troubleshooting Step 1 use oscillograph to test LO signal on pin 5 of XS401 on power amplifier board and find that there is no signal after unplugging flat cable on XS401 LO still has no signal output so we can confirm that trouble lies in power amplifier board Step 2 use multimeterto test power supply of N8 TLV272 and it is normal Step 3 use oscillograph to test pin 55 and 56 of N12 TAS5508 and find that there is digital waveform output so we can judge that trouble lies in the circuitbetween N12 TAS5508 and 5401 Step 4 use oscillograph to test pin 2 pin of N8 TLV272 and find that there is waveform input but when testing pin 7 of N8 there is n
72. ally disc in There is about 1 second 3 3V TROPEN pulse when at the moment of disc out TRCLOSE 0 There is about 1 second 3 3 pulse when at the moment of disc out TROUT 3 41V 0V 3 3V 3 2 4 Main axis control circuit 1 Main axis control circuit is shown asin the following figure 3 2 4 1 C307 222 R318 08 ADIN SPL R322 680 Figure 3 2 4 1 Main axis control circuit diagram 2 Function disc is always in high speed rotation in the course of disc reading when you need to open the door to change disc MT1389 stops the positive direction drive signal which is given to main axis drive circuit forthe function of inertia disc is still rotating If disc out 15 performed at this time disc will be abrasively damaged Therefore machine must be baking to main axis that whether disc has stopped rotating and whether disc is reversing decode chip of the machine cannot recognize So a main axis control circuit is added to make decode chip can effective monitor that whether disc has stopped rotating 20 3 Working principle MT1389 has a comparator inside composed of operational amplifier in which OP is the in phase input end of operational amplifier is reverse input end is output end when playing disc normally for electric machine is positive direction rotating voltage of is higher than that of OP voltage of OPO is more than 1 4V When disc out is needed main axis dr
73. aser head directly for laser emission will occur when laser head is working which will Hurt your eyes 2 Do not use wiping water or alcohol to clean laser head you may use cotton swab 1 1 4 About placement position 1 Never place DVD player in positions with high temperature and humidity 2 Avoid placing near high magnetic fields such as loudspeaker or magnet 3 Positions for placement should be stable and secure 1 2 Maintenance method 1 2 1 Visualized method Directly view whether abnormalities of collision lack of element joint welding shedding welding rosin joint copper foil turning up lead wire disconnection and elements burning up among pins of elements appear Check power supply ofthe machine and then use hands to touch the casing of part of elements and check whetherthey are hot to judge the trouble spot You should pay more attention when using this method to check in high voltage parts 1 2 2 Electric resistance method Set the multimeter in resistance position and test whether the numerical value of resistance of each point in the circuit has difference from the normal value to judge the trouble spot in the circuit the tested numerical value of resistance is not accurate and the tested numerical value of integrated IC s pins can only be used for reference sothe elements should be broken down for test 1 2 3 Voltage method Voltage method is relatively convenient quick and accurate Set the multimeter
74. ble is removed 1 External L R N4 N12 N13 N14 channel input 74HCT125 TAS5508 TAS5512 F Output 2 Tuner 3 MIC 1 Headphone output 2 Mixed L Rchannel output on AV board Operational amplifier B Figure 3 3 1 1 Signal flow chart Example 4 Sound distortion Analysis and troubleshooting Step 1 check power amplifier board 28V power supply and 5 3 3V 12V 12V and they are all normal check clock on power board andit is also normal Step 2 check waveform and find that all waveform has output notrouble found Step 3 after changing decode board sound becomes normal so we can confirm that trouble lies in decode board Step 4 check clock of MT1389 and itis 26 999MHZ which is normal Check the output of pin 2 of 1 8V voltage regulator U202 and it is 1 9 which is normal Check DV33 on 3 of 5203 andit is 3 4V which is also normal Step 5 through the above steps carefully check power supply of MT1389 and find that L235 is burnt down resistance value becomes large after changing L 235 trouble is removed Conclusion after some preliminary checking if trouble is not found you may change circuit board to make sure which board trouble lies in to facilitate the next operation As for sound trouble if power supply and clock is both normal you may consider changing IC Example 5 Power amplifier has no sound Analysis and troubleshooting shown in the figure 3 3 1 2 Step 1 check power
75. circuit troubleshooting process Check whether pin 2 of 0208 SDRAM has pulse Change U208 SDRAM and check whether itis ok Change U201 MT1389 Change U201 MT1389 and check whetherit is ok Change 9202 24LLC02 56 022676 se si uo jou amod 10 sseooJd 6 1389 N Change MT1389 ou 10 410 Lz Z e anb No disc reading whether C213 has electric leakageor short circuit to ground whether C210 has short circuitor electric leakage 1 Change MT1389 N 2 Check othercircuit Check whether the place of 5301 5303 530215 well inserted or oxidated Check whether power supply of pin8 and 7 of U302 D5954 is 5V Change loader and check whether itis normal Check power supply circuit Check whether pin 4 of U302 D5954 is 1 4V whether power and clock 27MHZ of MT1389 are Change MT1389 whether power upply and clockof MT1389 are normal referto trouble shooting process laser head and eed are normal whetherlase head moves forward and backward after power digital oscillograph to test whether theend close to MT1389 of R202 has waveform Note Whether laser head
76. ded Micro controller Built in 8032 micro controller Built in internal 373 and 8 bit programmable lower address port 1024 bytes on chip RAM Up to 2M bytes FLASH programming interface 64 Supports 5 3 3 Volt FLASH interface Supports power down mode Supports additional serial port 7 DVD ROM CD ROM Decoding Logic High speed ECC logic capable of correcting one error per each P codeword or Q codeword Automatic sector Mode and Form detection Automatic sector Header verification Decoder Error Notification Interrupt that signals various decoder errors Provide error correction acceleration 8 Buffer Memory Controller Supports 16Mb 32Mb 64Mb SDRAM Supports 16 bit SDRAM data bus Provides the self refresh mode SDRAM Block based sector addressing 9 Video Decode Decodes MPEG1 video and MPEG2 main level main profile video 720 480 and 720x576 Decodes MPEG 4 Advanced Simple Profile Support DivX 3 11 4 x 5 x Home Theater Profile Support Nero Digital Smooth digest view function with 1 P and B picture decoding Baseline extended sequential and progressive JPEG image decoding Support CD G titles 10 Video OSD SPU HLI Processor Arbitrary ratio vertical horizontal scaling of video from 0 25X to 256X 65535 256 16 4 2 color bitmap format OSD 256 16 color RLC format OSD Automatic scrolling of OSD image 11 Audio Effect Processing Dolby Digital AC 3 EX decoding DTS DTS ES decoding MPEG 1 layer 1 layer 2 audio decodi
77. duction 2 The function of 2411 2 in this model is to keep some setup status of machine such as system information of sound and language selection not losing after power on and still keeping the information set last time when power on the next time The circuit schematic diagram is shown as the figure3 5 5 2 1120 41244 10 40150 Dx NI NX RST YP WERSI Figure 3 5 5 2 Circuit schematic diagram 80 3 Pin function is shown as the following table Pin Name Voltage in actual test Pin Name Voltage in actual test 4 VSS 0 8 VCC 3 21 Note when playing DVD CD disc and no disc in the measured voltage are all the same in which pin 7 is protection write pin unused 3 5 6 Function introduction to 74 125 1 74HCT125 N3 N4 is a 4 channel gating switch and each channel has its own gating signal in which pin 1 4 10 and 13 are gating control pins gating when in low level and off when in high level 74HCT125 truth value table and function module structure is shown as the figure 3 5 6 1 10E 1 T 20E 2A 2Y H means high level 3 3 L means low level OV X means any state Z means that is off and cannot 11 be selected 4A aY GND 7 14 Figure 3 5 6 1 Truth value table and 74 125 function module structure 2 Pin function of N3 74HCT125 is shown as the following table Contiguous Directly contiguous element
78. e light emitted from light emitting diode and the larger of the photocurrent produced from position D The lower of the voltage inputted from the right side of photoelectric coupler the weaker of the light emitted from light emitting diode and the weaker of the current outputted from position D 17502 2501 Figure 3 5 16 1 Hs817 outside drawing 3 5 17 Function introduction to Pt2579 1 Description PT2579 is a Radio Data System Demodulator IC utilizing CMOS Technology specially designed for radio data system applications The RDS data signal RDDA andthe RDS clock signal RDCL provided as outputs for further processing by an ideal decoder microcontroller Anti aliasing Filter 219 order 57kHz band pass filter 8th order reconstruction filter 2nd order clocked comparator with automatic offset compensation biphase symbol decoder differential decoder signal quality detector are all built into a single chip having the highest performance and reliability Pin assignments and application circuit are optimized for easy PCB layout and cost saving advantages 2 Features CMOS Technology 94 Low Power Consumption Anti Aliasing Filter 279 Order Reconstruction Filter 209 Order 57kHz Band Pass Filet g Order 57kHz Carrier Regeneration Differential Decoder Signal Quality Detector Subcarrier Output Selectable 4 332 8 664 MHz Crystal Oscillator with Variable Dividers Synchrono
79. eck whetherit is normal Change U507 TI431 and check whetherit is normal Change 0505 0880 and check whetherit is normal whether Tc515 C516 TC517 C523has electric leakage N Check power supply circuit and absorption circuiton pin 3 of U505 53 17 Troubleshooting process for no voltage output is shown as the following figure 3 3 2 18 No voltage output Only one path has no voltage output Several paths have no voltage output Find which path has no output Check whether filtercapacitor has electric leakage Whether it is normal after changing rectifie diode Check whether cathode board of D505has 3 3V voltage Each path has no voltage output Change Check whether DV505 and 19 C509 508 509 check whether itis has electric leakage normal or short circuit Check whether cathode of rectifier diodehas voltage Check whether R508 R509 C513 R513are normal Change corresponding element 1 Check whether inductor has open circuit 2 If there is voltage regulator check whether it is normal after changing voltage regulator Note 0 Change Check 1 Check fuse 0503 TL431 whether TC501 2 Check bridge circuit rectifier diode and check whetherit is has 310V voltage 3 Check element on electromagnetic normal interference filter circuit Change U502 2501 and check whetherit is
80. ence voltage of digital power supply 1 8 OSC CAP Oscillator capacitor connection end DI __ NE Clock signal output RESERVED Connect digital signal ground DI DO Series control data input output wa 9 9 9 sw Microphone external left right channel audio data input sw Centre subwoofer audio data input E p um E Connect digital signal ground Connect digital signal ground Series control clock Left right audio control clock Series audio control clock Left right channel audio data input Surround left right channel audio data input Power supply controlled by bandwidth modulation volume Reference voltage of digital kernel power supply 1 8V Digital ground Digital ground Digital 3 3V power supply BKND ERR External chip TAS5512 correction signal input VALID Output external chip TAS5512 reset signal Power amplifier left channel PWM output negative end PWM P 1 Power amplifier left channel PWM output positive end PWM M 2 DO Power amplifier right channel PWM output negative end 87 43 2 DO Power amplifier right channel PWM output positive end 44 Power amplifier surround left channel PWM output negative end 45 pwes mo Power amplifier surround left channel PWM output positive end 46 Power amplifie
81. er is 7 Whenin external input main clock of TAS5508 waveform diagram of pin 4 of N2 Tek UM Stop M Pos 0 0005 SAVE REC Action Save Image File Format 12 d About 1 Saving Images Select Folder Save 010 8 CH1 2 00 M 50 008 CH1 1624 Current Folder is 8 Clock of 1389 when playing DVD waveform of main clock of TAS5508 Tek Ma Stop M Pos 0 0005 SAVE REC 2 About 1 fy Vw Saving Images Select Folder 0011 CH1 1 004 50 0 5 CH1 2 1 04V Current Folder is A 60 3 4 2 Key point voltage 1 Voltage of key point is shown as follows Name Whenieading dise When disc out When disc in dist normally in There is about 1 second 3 3V pulse TRCLOSE There is about 1 second 3 3V pulse when at the moment of disc out TROUT 41V 3 3V 0V 0 3 3 ss 2 Key point voltage is shown as the following table DV33 point A Diode VD201 cathode TC217 may sends out current from this point after power failure Diode VD201 anode 3 3V after reset finishes Point C Pin 5 of reverter OV after reset finishes After reset finishes voltage decreasesifom 3 3 to URST point D Connection place of R256 and R253 3 3V after reset finishes After resetfnishes 3 Key point voltage unit V shown as the following table
82. ere is digital oscillograph firstly check the end close to MT1389 of R211 if there is waveform waveform diagram in section 4 within a small period about 5 seconds after disc in the possibility that MT1389 has trouble is small and D5954 may probably have trouble Example 16 No disc reading Analysis and troubleshooting shown in the figure 3 3 1 5 Step 1 check each flat cable and no abnormality is found Step 2 after changing loader still no disc reading and trouble is still notremoved Step 3 observe laser head and find that focus feed and main axis have no acts even that laser head does not emit laser light Step 4 check power supply and clock circuit of MT1389 and some abnormalities are found Step 5 use oscillograph to test the end close to MT1389 of R208 R209 R210 R211 test within a small period after disc in and find no obvious waveform output so we preliminarily judge that MT1389 has trouble after changing MT1389 trouble is removed 36 Example 171 No disc reading Analysis and troubleshooting shown in the figure 3 3 1 5 Step 1 check the nerve flat cable socket on 5301 and find no abnormality Step 2 change loader disc reading is normal and trouble is removed vcc 1 1 302 FB aa VOTKE VOFC VOFC VO2 VOLD VOLD PGND VOSL C302 PGND DMSO R208 10K DMo 37 VCC 104 GND TC304
83. f S jaudio input d AUXL 55112 55112 Lm N TUR MIC 1 OK Amplifying circuit N12 TAS5508 4558 MIC 2 SDAAD SDATAO DAVNIN N6 SDATA1 SAA6558 SDATA2 ADC DAT CS5340 Y2 Y4 Y5 Y6 PDS MPX 2 2 0201 SPDIF lt CLK STB R SDA r lt N103 U207 U208 o FLASH SDRAM o N102 a 9 lt 50793 2 IR receiver Headphone Section Two Unit Circuit Principle 3 2 1 Decode circuit 1 Decode circuit block diagram is shown asin the following figure 3 2 1 1 A0 A20 MT 1 389 ADO AD7 DQ0 DQ15 0 11 1 8V Reset EEPROM voltage circuit 24 02 regulating U206 Figure 3 2 1 1 Decode circuit blockdiagram 2 Working principle this decode circuit is mainly composed of MT1389 SDRAM and FLASH Working condition of decode circuit has 1 Reset refer to reset circuit working principle for details 2 Clock this system adopts 27M external clock input and produces clock signal required by system inside through internal frequency doubling circuit 3 Power decode chip adopts twp groups power supply of 3 3V and 1 8V in which 1 8V mainly supply power for internallogic control circuit and we call it core voltage After power on reset circuit performs reset to MT1389 built in CPU 8032 and FLASH decode chip outputs reset signal at the same time and performs reset to other circuit After system reset
84. for the later compiled service manuals For disassembly and assembly process in this chapter please refer to chapter 4 of DK1005S Service Manual or DK1020S Service The pictures of this model are shown asfollows 96 Chapter Cinque PCB board amp Circuit diagram Section One PCB board 5 1 1 Surface layer of AV OUT Board 97 5 1 2 Bottom layer of AV OUT Board 98 5 1 3 Surface layer of KEY SCAN Board 99 5 1 4 Bottom layer of KEY SCAN Board 100 5 1 5 Surface layer of DECODE amp SERVO Board 101 5 1 6 Bottom layer of DECODE amp SERVO Board 102 5 1 7 Surface layer of audio power amplifying Board 1 7 3j 22237 5025 CA 242 ap a 2 1 NS e T J 103 5 1 8 Bottom layer of audio power amplifying Board ri 9 104 5 1 9 982 5 1 0720604 2 m R501 SL 2 HIGH VOLTAGE 5DVR938 7 DANGER 2005 12 12 105 901 VDIOI 1N4148 9 swe 109 __ 5140 T 9s10 97 _ 5106 5107 R118 10K R119 R120 lt 105 Blue LED CDVR938 3 VDI07 106 Blue LED 3 5 01
85. ge will produce in transformer primary coil and switch module will probably be damaged The function of absorption loop is to form a loop for this self inductance to ensure the normal working of circuit 5 Switch module thatinputted from transformer is 310V DC To make transformer work AC shape voltage must be presented The function of switch module is to control this 310V DC to make it on fora while and then off for a while to produce a high low voltage change in the primary stage of transformer thus the transformer can work 6 Power supply circuit provides a power supply voltage for switch module 7 Rectification diode the voltage that outputs from transformer is pulse DC the function of rectification diode is to change pulse DC to DC together with the filtering circuit behind 8 Feedback loop the time of and in the same cycle inside switch module 5L0380R is decided by feedback loop Feedback loop perform sampling to 3 3V output voltage when output voltage is too high through feedback loop the space occupation ratio of pin 4 signal of 5L0380R is changed the on time decreases and output voltage begins to decrease When output voltage is too low the voltage sampled is on low side through feedback loop space occupation ratio of 5L0380R increases output voltage increases to make power board output stable voltage through the function of feedback loop LM431 usedin this power is a 2 5V comparator compare sampli
86. her matchingfilter COMP has waveform circuit has capacitance electric leakage or inductorcircuit opening Check Xs2061 flat cable and socket Check filter circuit Figure 3 3 2 5 Troubleshooting flow chart of No outputfor composite video 42 6 Troubleshooting process for No colour of picture is shown as the following figure 3 3 2 6 No colour ofpicture Check whether clock signal is normal Check clock circuit Check power supplycircuit refer to MT1389 troubleshooting flow chart Check whether U201 MT1389 is norma Change MT1389 N Check other circuit Figure 3 3 2 6 Troubleshooting flow chart of No colour of picture 2482 7 Troubleshooting process for no sound of power amplifier board when playing is shown as the No sound in power amplifier Check whether flatcable holder isjoint board when playingdisc welding or insertedto proper position No sound fora certain channel take centre soundfor instance Play 5 1CH disc Check whether SDATA2signal on pin 4 of 5201 has digital waveform following figure 3 3 2 7 No sound outputfor all channels Whether 28V Refer to troubleshooting power supply on process of 28V power XP503 is norma supply Check whether HDET signal on pin 2401 XS207 hasjoint welding Check whetherHDET signal Whether HDET on pin 7 of XS201 hasjoint signal on pin 2401 welding XS207 is high level Check whetherheadphone
87. ifier L R channeloutput and non power amplifier L R channel output blockdiagram 26 3 Microphone circuit block diagram is shown inthe following figure 3 2 8 3 board PWM FL PWM FL 14 PWM FR PWM FR TAS5112 FROU ENM RE LOUTX NBAn R166 R16 C108 L100 553 Swick R168 8 R217 gt 5 XS401 XP401 PWM RR R16 gt R17 gt P N987 C165 218 gt 3 PWM RR B ROUTX L102 gt N12 55508 PWM H PRWM H MR N10 gt PWM ML 4580 Figure 3 2 8 3 Microphone circuit block diagram 4 Headphone output circuit block diagram is shown in the following figure 3 2 8 4 2 R151 R148 8 152 R149 6 JeNo 5 5 gt 0 Figure 3 2 8 4 Headphone output circuitblock diagram 5 External input circuit block diagram is shown in the following figure 3 2 8 5 PWM FL PWM FL PWM FR PWM 5401 401 X 5 gt e m 12 55508 H PRWM HMR nig PWM H PIPWM 4580 Figure 3 2 8 5 External input circuitblock diagram 3 2 9 Video circuit Video circuit block diagramis shown in the following figure 3 2 9 1 MT1389 opr video 39411 D 1 3 2 o SCART terminal figure 3 2 9 1 Video c
88. ignal Power amplifier board audio signal flow chart is shown the figure 3 3 1 4 Surround L R channel and subwoofer channel output N13 55112 Front L R N14 TAS5112 centre channel output Decode board Power amplifier board 55508 Figure 3 3 1 4 Audiosignal flow chart 34 Example 11 Component color distortion Analysis and troubleshooting Step 1 check MT1389 clock 26 999MHZ VPP 1 72V normal 27KHZ when in normal conditions Step 2 check MT1389 power supply and itis normal Step 3 use oscillograph to test the 3 component signals of pin 6 Y4 pin 7 Y5 and pin 8 Y6 of XP206 on AV board and they all have output but when using multimeter to test DC voltage of the 3 signals we find that Y5 has 4 7V in normal conditions this voltage should be two several tenths of a volt and one volt plus a little at most Known from the circuit only when damping diode has trouble it has the most possibility to make this voltage increase when using multimeter to test diode we find that VD100 has been stricken through after changing it trouble is removed Note as for colour distortion problem if problem of capacity has electric leakage inductor has open circuit damping diode is stricken through and or short circuit is found please firstly consider changing 11389 Example 12 Component video has nooutput Analysis and troubleshooting use oscillograph to test VIDEOY1 VIDEOU
89. in 7 of XS201 itis infinite which is normal and now test the resistance to ground of pin 7 HDET of XP204 on panel and it is still 0 ohm so we can consider that problem lies in main panel headphone board or flat cable unplug the flat cable between panel and headphone test the resistance to ground of pin 7 of XP204 on panel andit is infinite so we can confirm that problem lies in headphone board but joint welding has not been found in headphone board so only socket has trouble after changing headphone socket trouble is removed Conclusion that the spring plate inside headphone socket has trouble makes HDET signal and ground connected together HDET signal 15 shown in the figure 3 3 1 3 Figure 3 3 1 3 HDET signalflow chart Example 8 Power not on Analysis and troubleshooting Step 1 check each circuit power supply of power board and it is normal Step 2 check clock circuit and it is normal frequency is 27MHZ VPP 1 8V DC voltage on two ends is 0 75V during the course of checking machine you may directly test on two ends of R244 and R248 thus it is convenient but the machine will be down or give whistle sound during test but the test result will not be affected basically if the influence is obvious when testing on one end of resistor you may test the other end Of course as for the defective machine that power not on the above phenomenon will not be noticed Step 3 check reset circuit and voltage is 3 3V
90. inted month pincers Cutting nippers Forceps Electric screw driver Terminals connecting cord Headphone Microphone Chapter Two Functions and Operation Instructions 2 1 Features Formats Digital video playback of DVD Video Super VCD and VCD formats MPEG 4 compatibility Playback of Divx 3 11 Divx 4 Divx 5 Divx pro and XviD formats Playback of music discs DVD Audio format Playback of musical compositions in DC DA and HDCD formats Playback of compressed musicalfiles in Mp3 and WMA formats Playback of Karaoke discs in DVD VCD and CD G formats Playback of photo al bums recorded in Kodak Picture CD and JPEG digital formats Audio 8 192 kHz 24 bit audio D A converter Coaxial and optical audio outputs providing digital sound playback in Dolby Digital LPCM formats Coaxial and optiacl audio inputs providing connection of external digital signal sources Stereophonic audio outputs for connection to TV and amplifier Integrated digital multi channel sound decoders providing playback of Dolby Digital and DTS audio tracks Integrated Dolby Pro Logic Il decoder provding transformation of stereophonic signal to multi channel one Microphone input providing karaoke functions Headphones output Video 8 108 kHz 12 bit video D A converter Progressive scan Y Pb Pr video signal output securing high resolution and absence of image flicker Composite and componen
91. ircuit block diagram 28 2 On the basis of 13898 1389E uses some pin functions again and reduces USB function so it shows concise video output pin is used again the brightness signal chroma signal CVBS signal and component video signal decoded through U201 MT1389 through low pass filtering and clipping are sent to the corresponding terminal for output shownin the figure 3 2 9 2 5206 GND figure 3 2 9 2 Video circuit diagram 3 is shown in the following figure 3 2 9 3 This circuit is very simple R106 is a matched resistor which makes signal achieve the max power on load capacitorC 106 C108 and inductor L106 compose low pass filter to filter high frequency interference signal except for useful signals diode VD108 VD109 compose a limiting circuit we know from features of diode that the max limitation of chroma signal Y cannot be more than 5 7V and the min cannot be less than 0 7V thus the high voltage signals from TV set can be prevented from burning down the player Ko pos VIDIO A m L o D 5V vipEo L119 Torf 20 til VD109 1N4148 vipEO 2 L 105 VD108 12 758 lt 106 C108 2 47P TT 47P 7 D 5V
92. ive signal stops for electric machine is permanent magnetic when in rotating induced electromotive force produces in two ends to give to decode chip through R320 R319 sampling to make OPO output less than 1 4V voltage and transmit to input pin of MT1389 ADIN through R318 When ADIN is high level main axis drive output end has not any drive signal output when ADIN is low level MT1389 outputs a reversing drive signal to main axis drive circuit to make main axis electric machine speed down Thus circular working goes until main axis stops rotating PDVD is manual disc out means so after disc out disc is still rotating but will stop very son 4 Key point voltage unit V is shown as the following table DV33 point A Diode VD201 cathode 3 3V TESTOR point after power failure 5 3 3 After reset finishes voltage increases from Point C Pin 5 of reverter OV after reset finishes After reset finishes voltage decreases from 3 3V to OV Connection place of 3 3V after reset After reset finishes voltage increases from R256 and R253 OV to 3 3V 3 2 5 Control panel circuit 1 Control panel circuit block diagram is shown in the following figure 3 2 5 1 FL gt 5 21 Grid1 Grid8 5 02 5 016 DGND LED1 LED2 Volume knob Figure 3 2 5 1 Control panel circuitblock diagram 221 2 Working principle 1 Realization
93. l this signal controls TAS5508 and performs self protection function and cannot output signal which makes us consider that TAS5508 is damaged 28 5V SLOUT D los 5 103 ge a s 104 5 wi m TAS5112DFD PGND PGND 1 R2080R 2 age Lu an 28 5V 51 R2090R Li GND GND 104 VCC28A A GND GVDD I PGND GREG BST D 1 capsa Rat SD cp sss Tris ISD AB 4 JONS 5 zr Es uas gt CD GND t 1D 11 PWM M 8 103 610 sR PWM SR _ 821008 4 2 DREG RTN cas 038 2 2 1 102 Rao 5 1K 1 7 sexus 8 m 1 E 24 cm Seo ir 12 PGND 18 28 12 18 10uH PND IRESET AB 1 1 0 207 D WA ND eem t PWM_AP ND R R144 GND 1 i c2sioa DGND OUTA C121104R1361 5 521906 GND PVDD A 8p _ _ lt gt pon 0135 3 1 102 R140 1 10 ewmsw _ GREG BST A 0 47 PGND 20 D T c V OU20A m sw 2 des
94. listening to the music and the space is limited In this case you can install three speakers two front ones and a central one as shown in Fig 1 With the distance to the listener being approximately the same The central channel delay is to be set at 0 Should the central speaker be in close proximity to left and right front speakers as shown in Fig 2 or the central speakers in one line as shown on Fig 3 with the delay value of the central to be set at 0 Finally if it will be necessary to install the central speaker behind the left and right front speakers the delay value shall be set at 0 WEGE L R gt C L R C Fig 1 Delay of central channel 0 Fig 2 Small area Fig 3 Small area L R C Delay of central channel L or Delay of central channel 0 1 8 Dolby Digital Night mode The Dolby Digital system provides an extremely broad dynamic range of playback sound from gentle to roaring It creates the presence effect especially while seeing motion pictures However at night a powerful sound with a broad dynamic range may give pleasure to you but disturb and annoy your family and neighbors If you just decrease the volume you will immediately notice that you ceased to hear e g dialogues as clearas you do at normal volume and such sound effects as rustle whisper etc have merely disappeared To avoid this you just haveto decrease the volume of soft sounds with
95. log input path Connect an external 15K resistor to this pin and AVSS 216 Aw Power Analog power 3 3V 1 Ground Analog ground 2 wA Analog input AC couple input path A 3 owe Analog input AC couple input path B 4 Analog input AC couple input path C 5 Analog input AC couple input path D 6 ome Analog input AC coupled DVD RF signal input RFIP 7 woRN Analog input AC coupled DVD RF signal input RFIN 8 Analog input DC coupled main beam RF signal input A 9 Analog input DC coupled main beam RF signal input B 1 Analog input DC coupled main beam RF signal input C 1 Analog input DC coupled main beam RF signal input D 12 Analog input DC coupled sub beam RF signal output A 13 Analog input DC coupled sub beam RF signal output B 14 2011 1 Analog input DC coupled sub beam RF signal output C 15 m Analog input DC coupled sub beam RF signal output D 16 alog input CD focusing error negative input 1 alog input CD focusing error positive input 18 Analog input 3 beam satellite PD signal negative input 19 TPI Analog input 3 beam satellite PD signal positive input ALPC 4 20 MIDI1 Analog input Laser power monitor input 21 MIDI2 Analog input Laser power monitor input M 70 67 22 LDO2 Analog output Laser driver output Reference voltage 3 28
96. ly used together with TAS5508 If TSA5508 has trouble it will provide a feedback signal for TAS5508 to make TAS5508 close and not output signal any more to avoid damaging element 88 1 Function of each pin of TAS5112 is shown as follows Pin Name Data direction Function Remark e 1 e 7 727 7 _ a eme s ___ 30 GVDD Door drive and digital regulator power supply end 89 3 3 3 CD 3 3 3 CD QJ AR N AR AR 53 4 4 5 5 5 5 5 55 56 BST A High side bootstrap supply BST C C em 7 TTC 27 77 RECHNEN TITAN seoaren oomen High side bootstrap supply BST eme Um mem senem 0 HM BST D LJ HS boot
97. may be caused by random trouble now you need to test repeatedly to confirm whether reset circuit has trouble 35 Example 141 Not read DVD Analysis and troubleshooting Step 1 check 5301 socket and flat cable and no abnormality is found you may observe directly and you need to insert it again when you find that flat cable is loose Step 2 change loader and trouble is removed Conclusion in actual servicing when you meet the trouble such as no disc reading it is always difficult to judge which element has trouble so you may try changing loader to judge where the trouble is in Example 15 No disc reading Analysis and troubleshooting shown in the figure 3 3 1 5 Step 1 check each flat cable and no abnormality is found Step 2 after changing loader disc reading is still unavailable Step 3 observe laser head and find no focus acts after opening door other acts are normal so it is preliminarily judged thatservo circuit has trouble Step 4 check and find that power supply on pin 8 9 of U301 D5954 is normal and that on pin 21 is also normal check reference voltage on pin 4 of U301 andit is 1 4V which is also normal Step 5 check U302 R211 and C213 and abnormality is found Step 6 after changing U301 D5954 trouble is removed Conclusion in actual servicing it is difficult to judge whether an IC has trouble or not sometimes you may try considering changing IC and check whether trouble is removed If th
98. menu language 3 Soundtrack selection of translation language Options Russian English Estonian Lithuanian Kazakh Romanian Belarusian Ukrainian Chinese Default English Selection of other languages Select the OTHERS item using the jog Dial and press OK Enter the language code using the number buttons and press OK If the language you select is not recorded on the DVD disc another available language will be used 4 Subtitles Selection of subtitles language Options Off Urssian English Estonian Lithuanian Kazakh Romanian Ukrainian and Chinese Default option Off Selection of other languages Select the OTHERS item using the jog Dial and press OK Enter the language code using numeric buttons and press OK If the language you selected is not relcoded on the DVD disc another available language will be displayed 2 3 3 Image settings menu 1 TV system TV system selection Options Auto PAL NTSC Default option Auto 2 TV scan mode scan mode selection Options Progressive interlaced Default option interlaced Progressive scan is transferred only component video output Before switching to progressive scan make sure that your TV set supports this operation mode TV system TV scan mode TV format Video output Sharpness Gamma Brightness Contrast Hue Saturation 3 TV Format image ratio settings Options 4 3 pan amp scan 4 3letterbox and 16 9
99. n rear stage circuit 4 7 125 74HCT125 is a gating IC with 4 channel in it which can select the 4 path signals N3 carries out the gating for the 4 path signals of clock signal MCLK audio signal 5 SDATA1 SDATA2 N12 TAS5508 after performing pulse width modulating processing to the 4 path digital audio signals of SDA SDATAO SDATA1 SDATA2 10 channel output produces left right channel output on input output board headphone left right channel output front left right channel output on power amplifier board surround left right channel output subwoofer channel and centre channel output N13 N14 TAS5112 it is a high performance amplifying IC which modulates and amplifies the front left right channel surround left right channel centre and subwoofer after being PWM modulated by N12 TAS5508 25 3 2 8 Output circuit 1 Power amplifier surround left and right channel block diagram is shown in the following figure 3 2 8 1 N3 74HCT125 ASDAT1 SDATA1 Disc Loader FY MT1389 018 R295 9 5207 R56 Figure 3 2 8 1 Power amplifier surround left and right channel block diagram 2 Power amplifier left right channel output and non power amplifier left right channel output block diagram are shown in the following figure 3 2 8 2 MIC1 MIC signal XP204 X8201 6 2 7 MIC2 Power amplifier 20 TAS5112 left right E channel output Figure 3 2 8 2 Powerampl
100. ng MPEG 2 layer1 layer2 2 channel audio 65 High Definition Compatible Digital HDCD Windows Media Audio WMA Dolby ProLogic Il Concurrent multi channel and downmix out IEC 60958 61937 output bit stream mute mode Custom IEC latency up to 2 frames Pink noise and white noise generator Karaoke functions Microphone echo Microphone tone control Vocal mute vocal assistant Key shift up to 8 keys Chorus Flanger Harmony Reverb Channel equalizer 3D surround processing include virtual surround and speaker separation 12 TV Encoder Four 108MHz 12bit DACs Support NTSC PAL BDGHINM PAL 60 Support 525p 625p progressive TV format Automatically turn off unconnected channels Support PC monitor VGA Support Macrovision 7 1 L1 Macrovision 525P and 625P CGMS A WSS Closed Caption 13 Progressive Scan Video Automatic detect film or video source 3 2 pull down source detection Advanced Motion adaptive de interlace Minimum external memory requirement 14 Outline 216 pin LQFP package 3 3 1 8 Volt Dual operating voltages 66 4 DESCRIPTION PIN Main Alt Type Description RF interface 26 212 OSP Analog output RF Offset cancellation capacitor connecting 213 OSN Analog output RF Offset cancellation capacitor connecting 214 Analog output RF loop capacitor connecting DVD ROM Current reference input generates reference current for 215 IREF Ana
101. ng circuit 15 FILT Forward reference voltage 16 1 Mode selection Decide the operation mode of element 3 5 10 Function introduction to 4558 4580 4558 4580 includes two integrated operational amplifiers inside with pin function shown as follows Pin Data direction Function Pin Data direction Function 1 Output of operational amplifier Output of operational amplifier B Negative input terminal of operational Negative input terminal of operational amplifier amplifier B Positive input terminal of operational Positive input terminal of operational amplifier amplifier B 4 minus 12V voltage input 12V voltage input 85 3 5 11 Function introduction to TLV272 TLV272 includes two integrated operational amplifiers inside with pin function shown as follows Data Pin Name Function direction Output of operational amplifier A 2 amplifier A Positive input terminal of operational amplifier 4 GND Negative input terminal of operational Data Function Output of operational amplifier B Negative input terminal of operational amplifier B Positive input terminal of operational amplifier B 5V voltage input 3 5 12 Function introduction to TAS5508 55508 is a digital pulse width modulator PWM developed by TI Company which performs PWM modulation to audio digital signal SDATAO SDATA1 SDATA2 outpu
102. ng voltage with this 2 5V voltage when sampling voltage is more than 2 5V means output voltage is on high side LM431 is on light emission diode in photoelectric coupler begins to emit light to make the other end of photoelectric coupler begin to be on the light emission is stronger the degree is large the time of switch module 5L0380R decreases output voltage begins to decrease When sampling voltage is less than 23 2 5V means output voltage is on low side LM431 cuts off the time of VEPR22 increases output voltage increases thus power board outputs stable voltage through the auto control function of feedback loop 9 Filtering circuit the function is to produce a stable and small ripple DC voltage style filter is often adopted in filtering circuit The features of capacitor filtering are when load resistance is high and current is small filtering function is obvious for inductor filtering when load resistance is small and current is large filtering function is obvious Constitute capacitor to II type filter it may have better filtering effect 3 Main functions of various voltage outputted by power board 1 21V supply power for panel main chip N102 2 FL i FL supply power for filament of panel display screen 3 D 5V supply power for N102 servo drive chip 0302 05954 and open close circuit 4 P 28V supply power for audio power amplifying chip N13 N14
103. ngs 2 3 11 Exitsettings menu Select the item using the jog Dial and press the OK to exit the menu Language Image Sound Playback Karaoke Preference Parental control Initial help Reset settings Exit 2 3 12 Channel delay set up Set up of tine delay in the surround channel Usually time delay in the Dolby Digital decoding system is presetto ensure best offect while installing the Hone Theater However in case y you with to adjust your system more precisely please consult instructions given in this manual Set up of time delay forthis device is possible in both Dolby Digital and Dolby Pro Logic modes D 4 Fig 1 Take into account the A B distance useboth figures for setting the desired time delay To set the desired delay you have to know the distance from the place where you areto the front speakers and surround speakers as shown in Fig 1 Consult Fig 2 Dolby Por Logic mode and 3 Dolby Digital mode order to determine the distance to Surround Speakers axis Y inthe figure and the distance to the front speakers axis X in the figure Crossing point of those tow Lines onthe chart will give the recommended delay value Distance torear speakers inches Y Distance to front speakers inches Fig 3 Determine delay value as to Dolby Digital mode Set up of time delay in the central channel Sometimes several people are
104. nput and 8 ofXS401 10 12 ofN7 CS5340 terminal and XS401 have signal have waveform signal input Check whether power supply ofN4 74 125 is normal Change N5 CD4052 and check whether it is normal Check power supply circuit Change N7 55340 and check whether it is normal Change 4 THHCT125 and check whether it is normal N Change M2 TAS5508 and check othercircuit Change N4 74ACT125 Change N12 TAS5508 55 uo jou Joj 866920 4 Bunoouse qnoJ 02727676 anbi Power on Unplug Unplug whether voltage N Whether N X203 flat cable Y X203 flat cable N Output power of power supply of pin 7 5 4 3 5V each test on powerboard and and test whetherresistor of this pathis not enough path and pin 11 5V of b check whether this path to ground of decodeboard Refer to troubleshooting process XS203 is abnorma voltage has voltage pin isbig of power board normal output Y Y Y Y For power boardtrouble Power supply loopon decode refer to troubleshooting board has shortcircuit to the f b d ground or filtering capacitor hag process of power boar electric leakage Check Check whether pin 2of U206 N whether resistance N Ch th di ist 1 8V voltage of R244 and R245 ange the correspondingresistor is normal Check whether pin 2 of 0
105. ntistatic Movement and friction will both bring static electricity which causes serious damages to integrated IC Though static charge is little when a limited quantity of electric charge is added to large scaleintegrated IC as the capacitance is very small the meantime nowthe integrated IC is very much easy to be struck through by static electricity or the performance will decrease Thus static electricity prevention is of extraordinary importance The following are several measures to prevent static electricity 1 Use a piece of electric conduction metal with the length of about 2 metres to insert into the earth and Fetch the lead wire from the top of the surplus metal and connect to the required static electricity device The length and depth of the metal embedded under the earth should be determined according to the wettability of the local soil For humid places it may be shorter and longer and deeper for dry places If possible it can be distributed and layed in terms of shape 2 On operating table board the antistatic table cushion should be covered and grounded 3 All devices and equipments should be placed on the antistatic table cushion and grounded 4 Maintenance personnel should wear antistatic wrist ring which should be grounded 5 Places around the operating position should also be covered with electric conduction cushion or Painted with antistatic paint 1 1 3 Precautions for laser head 1 Do not stare at l
106. o waveform output so we preliminarily decide that N8 has trouble after changing N8 trouble is removed Note N12 has waveform output but it is certain to be correct because N12 may probably only output carrier signal butno modulating signal Example 2 Headphone has no sound Analysis and troubleshooting insert headphone and test DET signal of pin 7 of 5201 on power amplifier board and it is low level Use oscillograph to test pin 5 6 of XS201 and there is no HR HL signal test pin 61 62 of TAS5508 and there is output check power supply of N10 N11 4580 and itis normal test pin 1 7 of N10 and there is no output So we doubt that N10 is damaged after changing N10 trouble is removed Example 3 External input has no sound Analysis and troubleshooting adjust DVD plauer in AV IN state and find that there is sound when playing disc so we can preliminarily confirm that the common part of external input and audio output when playing disc is normal shown in the figure 3 3 1 1 that is elements behind N4 are all normal and now we only consider N5 N7 4 and circuit among therm Use multimeter to test power supply of N5 N7 NA and itis normal use oscillograph to test output pin of N5 pin 13 and 3 and they both have signal 30 Output then when checking pin 4 of N7 there is no signal output use multimeter to test whether circuit between N5 and 7 is connected and also no trouble is found After changing N7 CS5340 trou
107. om the next bookmark REW button Press to playback fast reverse radio station tuning FWD Button Press to playback fast reverse radio station tuning 2 2 2 Rear panel connections SOURCE button Press to switch between DVD receiver Audio input Tuner Digital audio input PLAY PAUSE button Press to playback pause STOP button Press to stop the playback Microphone input VOLUME adjuster Press to adjust volume vrD display window Headphones input USB port 0600 0000000 o AM Antenna input FM Antenna input Left front speaker input output from the build in amplifier Right front speaker input output from the build in amplifier OO Right Surround speaker input output from the build in amplifier Audio input Stereophonic audio output Component video output Y Cb Pb Cr Pr Composite video output Center speaker input outputform the build in amplifier Subwoofer input output from build in amplifier 7 Left Surround speaker input output from the build in amplifier 2 2 3 VFD display general view 0000
108. or Pin Data direction Function description signal name signal 2 MCLK Clock signal input Pin 4 of N2 SN74LVC2G04DBVR 3 MCLK Clock signal output R70 81 4 MO Left right channel digital audio gating signal MO 14 VCC P 3 3V power supply Power supply 3 Pin function of N4 74HCT125 is shown as the following table Pin Contiguous signal name Data direction Function description Directly contiguous element or signal 14 VCC P 3 3V power supply Power supply 4 Through the gating to 74HCT125 MO M1 signal outputted from MT1389 realize the selection to internal and external signal The function table is shown as follows 82 MO 10 3 3V0 Function Internal signal External signal unused unused Remark Disc signal MIC signal Tuner external input 3 5 7 Function introduction to CD4052 4052 is a 2 group 4 channel data selector used to select external input audio signal microphone signal or tuner audio signal 1 Pin function is shown as the following table Pin Name Function Data direction 1 2 4 5 0 Y signal input 11 12 14 15 X0 X3 X signal input 3 13 Y signal output 6 INH Two groups both have no output when forbidden end his high level 7 minus 12V power supply 8 VSS Ground 16 VDD 5V power Supply 9 10 B A Gating signal 13 X signal output 2 Signal A B
109. otation speed decides that of disc Its rotation is generated by an individual DC electric machine in which rotation speed of DVD is twice over that of CD 3 2 3 Laser power control circuit 1 Laser power control circuit is shown as the following figure 3 2 3 1 LDO AV33 R301 4 7R Q301 2581132 5 MD1 20 21 O 6 20 0302 2581132 5 TC303 47uF 16 4 7R R302 LDO AV33 Figure 3 2 3 1 Laser power control circuit diagram 2 Working principle Pin 20 21 of MT1389 is laser power detect signal input pin 21 is DVD laser power strong weak detect signal input pin pin 23 is VCD laser power drive control output pin pin 22 is DVD laser power drive control output pin When reading VCD disc laser power becomes weak voltage of MDII pin decreases voltage decrease of pin 23 of MT1389 makes voltage of pin 19 of XS301 increase to reach the purpose of raising laser power When laser power is too strong voltage of MDII pin increases to lead to voltage of pin 23 of MT1389 increase to make voltage of pin 19 of XS301 decrease to reach the purpose of reducing laser power to form an auto power control circuit When reading DVD disc pin 21 is detect signal input pin pin 22 is drive control input pin and the working principle is the same with that when playing VCD disc 3 Key point voltage unit V is shown as the following table Name When reading When disc out When disc in disc norm
110. pply circuit Figure 3 3 2 7 Troubleshooting process forno sound of power amplifier board when playing 44 8 Troubleshooting process for no sound of MIC is shown the following figure 3 3 2 8 No sound of MIC One has no sound forinstance Both have nosound MIC1 has no sound Check whether 3 ofXS201 has signal Whether MIC item has been opened Note D Check XP201 5201 flat cable orchange MIC holder Use remote controller to open MIC items Whether power Check and repairthe supply of 4558 CD4052 corresponding power and 5340 is supply circuit normal Note 7 MIC itemscan be selected only when playing disc 2 Speak with MIC at thesame time when Use oscillograph measuring signal everywhere to test whetherpin 6 of N1 4558 ha input Whether pin 7 Whether C6 R4 of N1 has output are normal Whether pin 28 of XS207 onpower amplifier board has outpu Whether pin 3 13 of N5 CD4052 have output Change N5 CD4052 Whether two Check whether flat ends of R226 near 207 cable is wellinserted have 1 or whether R226has Whether R87 isnormal broken circuit N Change or weld R87 again Change N7 Change MT1389 Figure 3 3 2 8 Troubleshooting flow chartfor no sound of MIC 45 9 Troubleshooting process for no sound of headphone is shown the following figure 3 3 2 9
111. r surround right channel PWM output negative end 47 mo Power amplifier surround right channel PWM output positive end 48 VR PWM Reference voltage of digital bandwidth modulation 1 8V 49 7 Power amplifier centre PWM output negative end 50 PWM P 7 Power amplifier centre PWM output positive end 51 mo Power amplifier subwoofer PWM output negative end 52 Power amplifier subwoofer PWM output positive end 53 mese Bandwidth modulation digital ground 54 voorw Bandwidth modulation digital 3 3V power supply 55 5 Mixed left channel PWM output negative end 56 pwes Mixed left channel PWM output positive end 57 PWM M 6 Mixed right channel PWM output negative end 58 pwes Mixed right channel PWM output positive end 59 PWM HPML PWM output negative end 60 PR PWM output positive end 61 PWM HPMR PWM output negative end 62 mo PWM output positive end me 64 RESERVED 3 5 13 Function introduction to TAS5112 TAS5112 is a high performance digital amplifier designed by Tl Company In model DK1020S two TAS5112 are used to demodulate and amplify digital audio signal after pulse width demodulation and outputted by TAS5508 Each generates 3 channel outputs that is surround left right channel subwoofer channel and front left right centre channel TAS5112 is usual
112. rr mix set up of surround oftions while playing the sereo disc Options Off Sum L R Virt Surr d Low band distribution of low frequencies through channels Options Front F Center C Surround Sr Subwoofer SW Default options Front F Subwoofer SW If you want the low frequency component of the sound signal enter only the subwoofer channel select and confirm the parameter Subwoofer SW Configuration Stereo mix Surr mix Low band Channels Delays PRO Logic e Channel settings separate adjusting of volume by channels Select the channel you want Adjust the sound volume of each channel using the wheel Press the OK toreturn to sound settings menu Front Rear L 1 r Center SW f Delay of the channel Set up of signal delay in speaker channels central rear and subwoofer Subwoofer Center LS RS Using the jog Dial select the channel for which you want to set up the delay and press OK for confirmation Using the jog Dialset up the desired distance from the listener to each speaker dectiled description of this operation see on page 32 9 PRO Logic Il function of stereo sound conversion to 5 channel sound Options On Off Auto Default option Audio In Auto position the DVD receiver determines itself when to use the PRO Logic Il decoder Some discs do not support this function 2 Digital audio output SPDIF format set up of
113. rtion Note 0 the process of restoring factory settings is shown as the following figure 3 3 2 16 i P SETUP butt Mr Switch to common setup Default Press SELECT buttontwice Figure 3 3 2 16 Operation flow chart of restoringfactory settings 52 16 Troubleshooting process for P 28V voltage is shown as the following figure 3 3 2 17 P 28V voltage trouble 28V voltage hasno output 28V voltage ison high or low side whether pin 1 Check whether TC501 check of U505 KAIM0880 bridge rectifier module whether cathode has been changed BD501 is normal of D510 orD511 has into 310V 28V voltage output Check 1 Check whether TC508 is normal whether pin 1 2 Check whether BD501 is normal of U505 has310V 3 Check electromagnetic voltage interference filtering circuit and fuse Y Check Check whether L506 1 Change whether D510 N has open circuit D510 D511and Change Change D511 D502is normal Change check whether they are 0505 KAIM0880 0506 HS817 normal 2 Change D502 and check whetherit and check whetherit and check whether is normal is normal Check R520 R521 C520 N Change Change 0507 T1431 and check whetherit is normal 1 Check powersupply circuit on pin3 of U505 2 Check transformer Figure 3 3 2 17 Troubleshooting flow chart for P 28V voltage Change U506 Hs817 and ch
114. strap supply BST O eenean GND Common 2 Each function pin of N4 TAS5112 is shown as follows Name Data direction Function GREG Door drive voltage regulator decoupling pin Remark 90 gt N mre CD TW Chip over heat alarm output e lo LINE TITTEN TITTEN TION towne miosis C 7 C mM C em 00 C 5 High side bootstrap supply BST ee TITAN Right channel power amplifier output soje 3 3 A 3 3 4 4 un AR AR AR AR AR 5 5 5 CD 5 5 5 GND KHEN 777 7 TN 777 77 m m GND Common High side bootstrap supply BST HS bootstrap supply BST RN we omm Tare m
115. t Y Cb Cr S video and RGB SCART video outputs providing advanced switching capabilities NTSC PAL transcoder Support of many camera angels dubbed languages and subtitles Sharpness Gamma Brightness Contrast Hue and Saturation adjustment Miscellaneous Support of CD R CD RO DVD R DVD RW DVD R DVD RW FM AM tuner with RDS support USB port providing playback of files of supported formats from external flash memory devices KARAOKE providing extended karaoke features Easy to use on screen menu in Russian Support of Russian file names ID3 tags and CD text Memorty function which can load the last disc position on stop Capture function auto loading selected bookmarked image as the wallpaper Q Play function that will bring you to the main movie title and skip unskippable commercials Virtual control panel function makes your control of the device much easier when playing the movie Auto protecion of TV screen Child lock parental control protection against playing undesirable discs Auto voltage selection 110 250V and short circuit protection 2 2 Controls and functions 2 2 1 Front panel controls STANDBY POWER button Press to switch the device on into standby e Disc tray OPEN CLOSE button Press to open close the disc tray 0 PREV button Press to playback from the previous bookmark NEXT button Pres to playback fr
116. t option number DVD VCD SVCD Files Repeat Load effect 2 VCD SVCD PBS menu PBC menu on off Options On Off Default option On 10 If on option is set while reproducing discs menu will appear in which youcan select the or order of playing the disc content If the off option is wet the reproducing of content is performed is the order in which itis recorded of the disc 3 Flids Selection of reproduced files on the disc Options Audio Pictures Video All types Default option All types 4 Repeat file repeat mode Options Off Single All Default option Off 5 Load effect type of transition from one JPEG file to another Options Off from top from bottom Default option Off 2 3 6 Karaoke settings menu 1 Microphone MICROPHONE ON OFF Options On Off Default option Off 2 Kar Help karaoke disc playback mode Options L channel R Channel No ast NO vol Default option No vocal mode Microphone Kar Help Volume 3 Volume Microphone microphone sound volume level Using the jog Dial adjust the microphone volume level Press LEFT key to the cursor joystick to return to karaoke settings menu Microphone Kar help Volume Echo 4 Echo echo level while playing the karaoke disc Adjust the echo level Using the jog Dial Press LEFT key of the cursor joystick to return to karaoke settings menu Microphone
117. the volume of average sounds left unchanged i e Just decrease the dynamic range of sound accompaniment Only Dolby Digital system provides for such a method of sound control Ituses the principle of compressing the acoustic signals dynamic range while recording there fore while playing an inverse transformation volume expansion takes place This is called night mode The regulation limits are restricted however to avoid distortions of resultant signal 2008 High point of increase 10dB 0 dB Without changes 10dB 20dB 30dB 400B 50dB 60dB Lowest point of increase Principle of compressing the acoustic signal s dynamic range Dolby Por Logic surround mone channel with limited pec Me frequency range 100Hz 7khz channel subowwfen 20 12092 Low frequency Multivariate Sound distribution From left to right from right to left from front to rear from rear to front L C R 6 independent channels each 4 segmented channels Only one Channels 8223 reproducing its own signal at a time channel is decoded at a time Miscellaneous Creates an optimum sound field with The most cost efficient way to illusion of an equal distance from ensure high quality surround listener to each speaker effect Allows adjusting the decompression dagree of sound information night mode Surround sound may be received from any signal source
118. ting process shown in the figure 3 3 2 3 RST is always high level Forced reset firstly Whether the player Check other circuit works normally Change phase inverter and check whether U205 Change Q320 Check whether R2023 is short circuit whether C1003 is short circuit Whether the player works normally or electricity leakage Change Tc320 and check whether the player can work normally Figure 3 3 2 3 Troubleshooting flow chart when URST is always high level 40 4 Troubleshooting process for On screen mosaic when playing is shown as the following figure 3 3 2 4 On screen mosaic when playing Check whether power supply and clock signal of U201 MT1389 is normal N Refer to troubleshooting process of U201 MT1389 power supply andclock circuit Change U201 MT1389 Ok Change U208 SDRAM Change U207 FLASH Figure 3 3 2 4 Troubleshooting flow chart of On screen mosaic when playing 41 5 Troubleshooting process for No output for composite video is shown as the following figure 3 3 2 5 No output forcomposite video signal Whether itis norma after restoring into default settings 1 Check powersupply circuit 2 Check clocksignal check and correctflow Whether has video waveform output power supply and crystal oscillator circuit is norma Change U201 MT1389 Whether VIDEO Check whet
119. tted by Mt1389 to modulates audio signal onto load wave This player generates 10 path audio signal output in all that is headphone left right channel AV board mixed left right channel surround left right channel front left right channel centre channel and subwoofer channel The sound volume is bigger space occupation patio is smaller and sound volume is smaller space occupation ration is bigger It mat realize self protection function If voltage and current of the back stage circuit is too high it will close automatically to avoid damaging element Function of each pin is shown as follows Pin Name Data direction pow _ sf 10 VBGAP Function Reference voltage of PLL analog power supply 1 8V PLL FLT RET PLL external filtering loop PLL negative input PLL positive input Analog ground Analog ground Reference voltage of PLL digital power supply 1 8V PLL analog ground PLL3 3V power supply Bandwidth gap reference voltage 86 ae 9m 55508 reset signal Headphone microphone selection bit Power failure control bit Mute control bit Digital 3 3V power supply DVSS Digital ground VR DPLL Refer
120. u find that fuse and switch module have been burnt down please check whether diode on bridge circuit has been burnt down Example 10 Power amplifier has no sound Analysis and troubleshooting Step 1 check HDET signal of pin 24 of XS207 on power amplifier board and it is 3 3V voltage on XP101 and 28 5V voltage on XP503 are both normal Step 2 check SDATAO 5 1 SDATA2 R294 R295 R296 output on decode board it is normal Step 3 check SDACSW R98 SDASLSR R100 SDALR R101 signals on power amplifier board and they are all normal Step 4 check each output pin of TAS5508 and they alhave no output Step 5 check TAS5508 power supply and MUTE signal and they are both normal Step 6 check pin 63 MCLK of TAS5508 and it is about 3MHZ pin 26 LRCK is 48KHZ pin 27 SCLK is about 12 3MHZ the external crystal oscillation clockof chip is about 13 5MHZ which are all normal Step 7 after changing TAS5508 power amplifier still has no sound output Step 8 after changing N13 TAS5112 output is normal Conclusion each input signal power supply and clock signal of N12 TAS5508 are all normal but there is no output so directly change N12 but trouble is still not removed after changing so the rear stage circuit may probably cause that N12 has no output after changing N13 it resumes normal the internal trouble of N13 leads to the shotr circuit of N12 output pin N12 is with self protection function to stop outputting s
121. us Demodulator for 57kHz Modulated RDS Signals Clocked Comparator with Automatic Offset Compensation Clock Generation with Lock on Biphase Data Rate Biphase Symbol Decoder with Integrate and Dump Functions Available in 16 pins DIP or SOP Package 3 PIN DESCRIPTION PIN Symbol Description 1 QUAL Quality indicator output pin 2 RDDA RDS data output pin 3 VREF Reference voltage 4 MUX Multiplex signal input pin 5 AVDD Analog supply voltage 6 AVSS Analog ground pin 7 CIN Subcarrier input to the comparator 8 SCOUT Reconstruction filter subcarrier output pin 9 MODE Oscillator mode test control input pin 10 TEST Test pin 11 DVSS Digital ground pin 12 DVDD Digital supply voltage 13 5 1 O1 Oscillator input pin 14 OSC2 Oscillator output pin 15 T57 57kHz clock signal output 16 RDCL RDS clock output 95 Chapter Four Disassembly and Assembly Process DVD players manufactured in BBK are largely identical but with minor differences and are mainly composed of loader components control panel components decode and servo board components power board components power amplifier board components MIC board components and AV board components In order to speed up the compilation of Service Manual we shall not give repeat explanation to model with minor differences in chapter four Disassembly and Assembly Process
122. whether it is normal Change filter capacitor of this channel Several channels output powe of power supply arenot enough Insert decode board and check whether 310V voltage exists on TC501 Change D506 TC50 and C504 and check whether it isnormal Whether it is normal after changing TC50 change uou T Esso 1 Check whetherearth hange 509 capacitor suchasTC513 1 Check rectification diode C510 and check is electrical leakageor on bridge circuit whether it isnormal short circuit 2 51 0380 2 Check othercircuits 3 Check feedbackloop check whether it 15 normal Y Y Figure 3 3 2 14 Troubleshooting flow chart for Output power of power supplyis not enough 51 15 Troubleshooting process for image distortion is shown as the following figure 3 3 2 15 Image distortion Check clock circuit Composite video signal Component video distortion video outputs distortion distortion Check whether catching Check whether thereis one diode VD214 isnormal path output inthree paths Recover factory settings Note D Check the catchingdiode Check whether clock Check whether matching on each component signal is normal resistor R107 and C110 C111 L110 1120 filtering Check whether power Change M T1399 supply of MT1389is OK Change MT1389 Change MT1389 circuit are normal Figure 3 3 2 15 Troubleshooting flow chartfor image disto
123. whether it is normal Change D505 and check whether itis normal Change U5021 2501 Change U503 TL431 and check whetherit is normal whether C509 TC508 and TC509have electric leakage o hort circuj Figure 3 3 2 1 Troubleshooting flow chart for voltage too high or too low 38 2 Troubleshooting process is shown as the following figure 3 3 2 2 Trouble when opening closing disc tray Close disc tra Open disc tray Open close disc automatically automatically tray automatically Opening disc Noise occurs in Disc tray tray not fully disc tray door not open Change frame Vibration occurs when disc in out Check whether TC305 and 306 are normal Change abnormal capacito Check whether flat cable is inserted full Well insert flat cable Check whether sockel Change socket or on frame and XS302 fas heoncaxidated use alcohol to clean Whether detecto switch on frame is normal Change frame Check whether 4306 V307 V308 Changethe V309 V310 are corresponding triode ormal Check whether the resistor and capacitor related to disc open close is rosin joint and joint welding Figure 3 3 2 2 Troubleshooting flow chart when opening closing disctray 39 Disc tray not close Check whether frame is normal Change frame 3 URST is always high level troubleshoo

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