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SERVICE MANUAL

1. 31 8 2 Trouble Shooting 32 8 21 Board iai e Po E eee dec Ee rar is opu Beet rud et ed oo i tg 32 8 2 2 Inverter Power BORO net te em tures ipsa dU ei ps e EE 35 8 23 Keypad EGR 36 9 White Balance Luminance adjustment 37 10 spei 38 ___ _ ____ __ 39 LM928 REVISION LIST Revision Date Revision History TPV Model A00 Nov 25 05 First Version Release T980KA2HLLMKN SPECIFICATIONS LM928 Driving system TFT Color LCD Size 48 0cm 19 0 LCD Panel Pixel pitch 0 294mm H x 0 294mm Viewable angle 140 H 135 V Response time type 8ms for AU panel Sync Type HN TTL Input H Frequency 30kHz V Frequency 55 752 lt 50WW Power Consumption OFF Mode aw Display Color 16 2M colors RGB 6 bit AS FRC data Dot Clock ISSMUzZ Contrast Ratio 5501 White Luminance 270cd m Max Resolution 1280 x 1024 Plug amp Play DDC2B Source 100 240VAC 47 63Hz Maximum Screen Size Horizontal 376 32mm Vertical 301 06mm Environmental Considerations Operating Temp 0 C to 40 C Storage Temp 20 C to 60
2. 715V901 1 8 PCB BOARD 1 PCS 11 CBPC980KA2AON So MAIN BOARD 5 CBPC LABEL gt b a PCS LOW E S R 2200F 20 PCS LOW E S R 220UF 420 PCS LOW E S R 10UF 20 5 PCS LOW E S R 470 20 2 PCS LOW E S R 47UF 20 2 PCS LOW 5 8 10UF 20 5 PCS LOW E S R 10UF 20 5 PCS 67G215Y100 78 E S R 10UF 20 5 PCS 67G215Y100 78 LOW E S R 10UF 20 5 PCS 67G215Y100 78 LOW E S R 10UF 20 5 PCS 67G215Y100 78 LOW E S R 10UF 20 5 PCS 67G215Y2207RV RUBYCON 50V 22UF 1 PCS 67G215Y100 78 LOW E S R 10UF 20 5 1 PCS 33G8027 12 1 PCS 880 35424 1 PCS 33G802724B H 1 PCS 33G8019 8C 1 PCS 40G 457624 1B 1 PCS 71511423 1512 2 1 PCS 65G0603104 32 CHIP 0 1UF 50V X7R 1 PCS 65G0603104 32 CHIP 0 1UF 50V X7R 43 LM928 C205 65G0603104 32 CHIP 0 1UF 50V X7R 1 PCS C206 6500805105 22 CHIP 1UF 25V X7R 0805 PCS C207 6560603104 32 CHIP 0 1UF 50V X7R PCS C210 6560603104 32 CHIP 0 1UF 50V X7R PCS C212 65G0603104 32 CHIP 0 1UF 50V X7R PCS C214 65G0603104 32 CHIP 0 1UF 50V X7R PCS C216 6560603104 32 CHIP 0 1UF 50V X7R PCS C217 6500603104 32 CHIP 0 1UF 50V X7R PCS C304 6500603473 32 CHIP 0 047UF 50V X7R 1 PCS C305 6500603473 32 CHIP 0 047UF 50V X7R PCS C306 6500603473 32 CHIP 0 047UF 50V X7R 1 PCS C307 6500603102 32 1000PF 10 50V X7R 1 PCS C308 65G0603473 32 CHIP 0 047UF 50V X7R PCS C309 65G0603473 32 CHIP 0 047UF 50V 7 1
3. Date Wednesday October 06 2004 Bheet 2 of 6 20 CN301 AOC LM928 t 11 AD FB301 og 1 16VI R301 33 View cao4 0 047uF 8 i 3 RIN 4 216 2 FB302 on 1 16VI Rao caos 0 047uF m 18 co 3 8303 00 1 16W R303 1 16VV cod 0 047uF pin 2209 14 4 2 2 830 4700 1 16VV 0 001 C Oo POSV R325 2 pao 2 m 52 A L sos 4 BEI gt lt gt VGA CON news C S No RI 0322 D323 8305 68 1169 C308 0 047uF I2MC5V6 6508M 4 LL Boo View csod 0 0474 B307 681 116W _C31d 0 047 4 2 20D4 add R329 R330 m m TZMC5V6 GS08 NC D301 D302 D303 veosv BAV99 BAV99 BAV99 va R308 10K 1 16 VCC5V gt 8309 A100 sT
4. VCPU 2 VCPU SE RN602 RN601 2 R602 601 R607 10K 1 1607 1060 1 18V 8606 lt lt 10K0 1 16W 10 1 16W pe 10K 1 16 4 2 2004 change Crystal from 20 4 to 24MHz 1 16 2 9 8644 8644 8646 C602 22pF 3 co r 10K 1 iSW nc U601 Nc Po AD0 4 21 4 AD1 4 XTAL1 P12 o 02 1 10 6 16V 1 3 m 0603 MAXBIOSTR NC 1 20 PIA 0604 22 2 P15 737 2 10 P16 C vec _ RST P17 _ 2 i R636 A100 TED P6 1 Hs onPANEL 5V 3 3V 2 LL4148 GS08 1 Hew nes P6 2 OnBACKLITE 2 P6 3 ENTER Reset 6 4 25 RIGHT Circuit VSYNC P6 5 F30 1 R604 1061 1 16 608 1716W 595 P6 6 31 2 gt 00 0 T 8605 1 1 VI8609 1001 1 16W 3 PS 6 7 16 LEFT U602 4162 ezaciko 8 Op ao voc RO ico 2 IMIII63 3 pig LED WP P5 4 P77 _ A2 SCL P55 SDA 81056 P3 t TxXD EENAA HEY DDC_DAT 3 124616M105C 2 7 8638 ANC a 118634 T ppc TXD 3 R615 116W YYSON512 ol vecsv L L R6144081 1 16W S FB601 600 CC5V d 2004 08 19 MODIFY veru DDC WP 3 VCCi2V 2 2 7 CC5V 234 5 6 86
5. DET ppc wP By ST 0611 LH DDC_CLK csz DDC DAT SCL VCPU VCC12V VCC5V E TXD HWRESET INT ADO 5 AD1 AD2 e 12 AD3 Wivcru VCPU onBACKLITE AOC LM928 TSU16 56AK SCHEMATI 052 SCL SDA HWRESET INT AD0 e AD 03 Volume VCC12V VCC3 3 VCC1 8 VMMI I 6 MCU VAA2 VAAS VAA4 vocss B4 A onBACKLITE onPanel 5V 3 3V 2 POWER VCC1 8 VCC3 3 1 2 4 vcc ii vaa BlJl k c Qcs VAA2 E 4 BS PA 0 9 b PA 0 9 PA 0 9 PB 0 9 T 91 Bj 5 PANEL INTERFACE 4 SCALER 19 itle TSU16 56AK FOR 50 512 SWITCH Bize Document Number lev u TOP B ate Wednesday October 06 2004 heet 1 of LM928 VCC5V VCC5V T SoT 252 U201 VO 6 R202 GS1D VCC1 8 211170 1 8 CN201 al 10K0 1 16W sf 4 GND 2 a 4 C210 8
6. LM928 SERVICE MANUAL 19 LCD Monitor LM928 THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY EVERY REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL WE CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE OF PUBLICATION AND DISCLAIMS RELIABILITY FOR CHANGES ERRORS OR OMISSIONS LM928 Table of Content _ 3 _ _ _ 3 lt 323 3 _ 3 1 Monitor Description 4 2 LOD Monitor Descriptlon 3 an EE 5 Operating Instructioris 2 22 a 6 3 1 General InsStr ctloris ae ea eee 6 3 2 COMO BUTLOMS si sa aq u ua E 6 3 9 Adjustirig the 7 Input Output 2 20 0 coe 9 4 1 Input Signal Connector ppp ENT 9 4 2 Factory Preset Display Modes pp 10 4 3 Power Supply Reguirements pp MS 11 4 4 Panel esses nemen nenne 11 4 4 1 Display 5 5 A nennen b 11 4 4 2 Optical Characteristics pp 12 4 4 3 Parameter Guide L
7. Measure U201 PIN2 1 8V U202 PIN2 3 3V Check 201 or replace U201 U202 NG aN X601 and X401 oscillaie waveforms are normai NG OK Replace 601 401 Replace 0601 0401 32 LM928 picture LED orange The button if X601 oscillate Replace X601 under control waveform is normal Check reset circuit of Check Correspondent component L U601 is normal Measure U201 PIN2 1 8V U202 PIN2 3 3V Replace U601 4 1 Replace U201 U202 X401 oscillate waveform is normal OK NG N Replace X401 Check HS VS from CN301is normal Correspondent component AGE ANS Replace 0401 33 LM928 White screen Measure Q204 base is high level X601 oscillate waveform is normal Replace X601 Check 0204 0203 Check reset circuit of broken or CN503 solder 1601 is normal 4 Check Correspondent component OK Replace PANEL Replace U601 Check Correspondent component gt 34 8 2 2 Power Inverter Board 2 W LED No Backlight Check CN102 pin5 12V OK Check ON OFF signal Check adapter or Main Board Check Main Board Check U201 pin9 12V Change 0201 Check 0203 0205 0207 0203 Check Q204 Q206 Q208 D204 Check Q209 Q210 C213 Check Q211 Q212 C2
8. Dong FB304 430 OHM B310 AIK gt hswc 4 VSL 831 1000 1 16VV 8311 1 VSYNC 4 2004 08 19 ADR 1 0324 E 5 DSUBDDC_5V 8 V99 MC 0319 D320 cat R313 R314 0317 12MC5V6 6508 TZMC5V6 GS08 12M05V6 0508 R317 22K 116W 220 22K0 1 16W R318 C313 10K0 1 16W 10K0 1 6VI 0301 1 ouF VCC5V L 7 c9 Ao rz CLK_DDC 8315 1000 1 16W RN Ars DAT DDC 8316 1002 1 16W 51 VCCSV DVIDDC 5 DSUBDDC 4 2 2004 Add D324 Solution 1 T I24C02WMN6G operating al TZMC5V6 GS08 2 5 6 0508 60 R341 NC voltage 2 5y 5 5v u Ms 00 1 46w BAV70 h U303 2 gt ppc_ctk 1 2 zp 15 gt ppc DAT 2 1B gt 4 1 x4 1 E voc 18 VCC5V 7 See 8 9 2004 Add DVI 8 i CABLE Detect Qe 26 R331 74VHC4053 pvisv B 29 X 1 16W RGB 28 TL D305 VCCSV SYNCGND H tempie 5499 PS DVLRBT BAV70 DDG SCL pua U 1001 1 16VV xV 16 operaning ER R338 B z 200209 05 e Bits Eo vndc 11 R333 i da 10K0 1 16W esed E 0325 0314 0315 0316 S ADD ESD R323 0315 19 LL52328 5 6V 5 LL5232B 5 6 5 1152328 5 6V 5 Soluti 10K 1 16W 2 Recien 22 lLL5232B 5 6V olutio
9. gt gt gt gt LVA3P RIN 8 SS 5 LVA3M GNDR RINOM gt MORS LVACKP GIN GINO LVACKM GNDG GINOM LVA2P SOG SOGIN0 LVA2M BIN BINO LVA1P GNDB BINOM LVA1M HSYNC HSYNCO LVAOP VSYNC VSYNCO LVAOM 0 9 DDC1_CLK GPO8 PA 0 9 5 DDC1_DAT GPO7 R R R R G Gr PBO G G HHS B B NC LVB3M 0 9 5 B B NC LVBCKP CK NC LVBCKM CK NC LVB2P RENT NOLVBIP NC LVB1M NC LVB0P 66 NC LVBOM REFP C40 TSU16 56AK REFM CSZ CSZ SCL SCL HWRESET H WR HWRESETZ INT INT VCC5V L 407 R404 28406 gt 10 1 16 1 16W AdjBACKLITE PWMO NST VCC3 3 Volume PWM1 pan enar XIN ADONC 5S AD0 6 m 78 ADI 6 R402 AD2 NC 2 6 31 14 318MHz AD3 NC 6 1000 1 16W 34 XOUT Lol d BUS 3YPE NC L6 C404 0 1 3 AVSS_LPLL4 NC gt R401 R402 lt lt Direct Bus NC 4 7K 3 WIRE 4 7K NC AOC LM928 2 VCC1 8 VCC1 8 FB402 VDD 600 10uF 16V C418741874170418 0 1u 1u 1u 1uF VAA1 FB403 VAD 2 ___ 600 T c419 10uF 16V Pe 200421 0 1u 1uF VAA2 FB404 VPLL 2 2 600 OHM 6423 0 1uF VAA3 FB405 VDVI a 600 OHM 10
10. C Operating Humidity 15 to 90 LM928 2 LCD DESCRIPTION The LCD MONITOR will contain a main board an inverter board a keypad board and adapter board which house the flat panel control logic brightness control logic and DDC The Inverter board will drive the backlight of panel and DC DC conversion The Adaptor will provide 12V DC power to Inverter Power board Monitor Block Diagram CCFL Drive Flat Panel and CCFL backlight Rs232 Connector For white balance Inverter board Main Board adjustment in factory mode Keyboard Adapter Board AC IN 100V 240V HOST Computer Video signal DDC LM928 3 OPERATING INSTRUCTIONS 3 1 GENERAL INSTRUCTIONS Press the power button to turn the monitor on or off The other control buttons are located at front panel of the monitor By changing these settings the picture can be adjusted to your personal preferences The power cord should be connected Connect the video cable from the monitor to the video card Press the power button to turn on the monitor the power indicator will light up 3 2 CONTROL BUTTONS Power Button When pressed the monitor enters the off mode and the LED turns blank Press again to restore normal status Left Right Button The Left Right Button is used to control the monitor functions Press to switch functions or adjust settings Auto Adjust Key The Auto A
11. C211 C212 TV 5 6 VCCTV 1 0201 5514 p GND 7 8 GND VCC5V C20 8212 4 7 1 16W 47uFA6V 0 1uF frccsv s 10_ 5 4 VCC5V B onBACKLITE 6 EI GND 11 12 GND pa Q201 f PMBS3904 El CONN FB201 NGPU E gt vcPU 6 BI LI L VCC5V T C202 C204 24 C205 R203 220uF 25V 1 1 16W 220uF 25V Brightness VCC3 3 NN HY Tn e lt 3 lt _ lt R204 R205 116w Vooy VOC33 4 0202 aon 4 AajBACKLITE vv 263 28202 1uF 25V 600 OHM ul U202 VAA1 El _ ETE VIN VOUT 1 4 1 C214 eee C215 _ C216 2 VCC5V VCC12V VCC5V VLCD 0 1uF 47uF 16V 0 1uF VAA2 4 5 4 VCC5V VCC3 3 VCC12V T R206 R214 R208 T VAA3 4 10K0 1 16W C 1 1 16V R209 8210 28213 0203 ee ra VAM 4 1 03401 op 1 16V Nc NC 2004 09 05 ADD R207 47K view Hig thaw ang TOUCH PANEL 6 onPanel 5V 3 3V ES 8004 n POWER PMBS3904 C20 ul C208 R211 eV p 10K 1 16W ES 1 cats C219 2 qu 47uF 25V 0 1uF 16V CONN PITCH 2 0 GND H4 5 pasasaq Bo 9 5 terete Hers H ED lt l 4 X SCREWS3 2RI SCREW3 2RM 1 T SCREW3 2RM 2 Title TSU16 56AK FOR MYSON512 SWICH Bize Document Number Rev 8 POWER B
12. D905 93T 60237 SRF20100C 1 PCS F901 84V 53 2 250V 2A PCS IC903 56T 139 3A PC123Y22FZOF 1 PCS 1901 731 174 29156 PCS L902 73L 174 31LSG CHOKE COIL PCS L903 73T25391 H CHOKE COIL PCS LED1 81T 2 32 LC 5 NR901 61T 58050 WT NTC THERMISTOR PCS 051 6 4502 RTV G RJ1 95T 9026 WiRE HARNESS PCS T901 80LL17T 5LSG L ADAPTOR BY LISHIN PCS D ADPC1260AAL lt LCDADAPTERASSYFORA PCS C907 657080547427 1 CHIP 0 47UF 25 Y5V PCS C908 6570805474 27 CHIP 0 47UF 25V Y5V PCS C909 6570805104 22 0 1UF 10 25V X7R 080 PCS C910 6511206102 72 CHIP 1000PF 500V X7R PCS C914 65T0805104 22 0 1UF 4 109 25V X7R 080 PCS C915 65708051053 22 CHIP 0 01UF 25V X7R 080 PCS C916 6510805221 21 220PF 25V 5 PCS C917 6510805105 12 1UF 10 6V X7R PCS C921 6570805104 22 0 1UF 4 109 25V X7R 080 PCS C922 6571206102 32 CHIP 1000PF XTR 4 595 PCS C923 6571206101 71 100PF 500V 1 8W PCS D903 93T 64328 IN4148W PCS D906 93T 6438 DIODE PCS D907 93T 64325 IN4148W PCS 2901 561 379 33 50684152 1 PCS 41 LM928 IC902 Q902 Q903 R901 R902 R903 R904 R905 R906 R907 R908 R909 R910 R911 R912 R913 R915 R917 R918 R919 R920 R921 R922 R923 R925 R926 R927 R928 R929 R930 R931 R932 R933 R934 R935 R936 ZD901 20902 561 192 10 571417 6 571417 4 61 1206105 61 1206105 61 1206624 61 1206624 61 1206204 61 1206204 61 1206204 61 1206204 61V1206519 61 0805471 61 0805472 61V0
13. PCS C310 65G0603473 32 CHIP 0 047UF 50V X7R PCS C311 65G0603330 31 CER1 0603 NP0 50V 33P P PCS C312 65G0603221 31 0603 M5 50V 220P PCS C313 65G0603104 32 CHIP 0 1UF 50V X7R PCS C314 65G0603104 32 CHIP 0 1UF 50V X7R PCS C315 6500603104 32 CHIP 0 10 50V X7R PCS C318 6500603104 32 CHIP 0 1UF 50V X7R PCS C319 6500603104 32 X7R PCS C320 65G0603104 32 CHIP 0 1UF 50V X7R PCS A VN dX C321 65G0603104 32 CHIP 0 1UF 50V X7R PCS C322 6560603104 32 CHIP 0 1UF 50V X7R PCS C323 6500603104 32 CHIP 0 1UF 50V X7R PCS C324 65G0603104 32 CHIP 0 1UF 50V X7R PCS C325 6560603104 32 CHIP 0 1UF 50V X7R PCS C401 6500603104 32 CHIP 0 1UF 50V X7R PCS C402 65G0603220 31 CER1 0603 50V 22P P PCS C403 6560603220 31 CER1 0603 50V 22P P PCS C404 65G0603104 32 CHIP 0 1UF 50V X7R PCS C406 6500603104 32 CHIP 0 1UF 50V X7R PCS C407 6500603104 32 CHIP 0 1UF 50V X7R PCS C408 6560603104 32 CHIP 0 1UF 50V X7R PCS C409 6560603104 32 CHIP 0 1UF 50V X7R PCS C410 65G0603104 32 CHIP 0 1UF 50V X7R PCS C411 65G0603104 32 CHIP 0 1UF 50V X7R 1 PCS 44 LM928 C412 65G0603104 32 CHIP 0 1UF 50V X7R 1 PCS Akh res C426 CHIP 0 1UF 50V X7R 1 PCS C428 CHIP 0 1UF 50V X7R Ce PCS C510 CHIP 0 1UF 50V X7R PCS C601 CHIP 0 1UF 50 PCS C602 CER1 0603 NPO50V 22PP PCS C604 27 PCS C605 CAP CER 0 22UiF 20 80 PCS C606 1000PF 10 50V X7R PCS C607 1000 1
14. R216 6110603221 PCS R217 6110803221 PCS R219 6110603471 PCS R220 61L0603153 PCS R221 CHIPR 15 5 1 10W PCS R234 CHIPR 620 OHM 5 1 4 0W PCS R235 CHIPR 620 OHM 5 1 4 0W PCS R236 61L0603511 CHIPR 510 OHM 5 1 10W 1 PCS 51 LM928 R237 61L0603511 CHIPR 510 OHM 5 1 10W 1 PCS EE L201 1 5MM RIVET 1 PCS L202 1 5MM RIVET RY PCS PT201 1 5MM RIVET 2 PCS PT202 1 5MM RIVET 2 b 2 PCS R224 1K OHM 5 LAW or s PCS R225 1KOHM 5 1AW PCS R226 1K OHM 5 iW PCS R227 1K OHM 5 PCS R228 1K OHM 5 PCS R229 1K OHM 5 1 4W PCS R230 1K OHM 5 1 4W PCS R231 61G 17210252T I K OHM 5 1 4W PCS R232 616 17210252T 1K OHM 5 1 4W PCS R233 616 17210252T ________ 1K OHM 5 AW PCS KEPC980KB7 CN1 89G176J 8503 PCS SW1 Z7L604 2CJ PCS SW5 77L604 2CJ CHIP TACT SW 1 PCS
15. R607 R608 R609 R610 R611 R613 R616 R617 R618 R619 R620 R621 R622 R623 R624 R636 R637 61L0603100 CHIP 10 OHM 1 10W 61L0603100 CHIP 10 OHM 1 10W 61L0603100 CHIP 10 OHM 1 10W 61L0603100 CHIP 10 OHM 1 10W 61L0603100 CHIP 10 OHM 1 10W 61L0603100 CHIP 10 OHM 1 10W 61L0603100 CHIP 10 OHM 1 10W 61L0603101 RST SM 0603 RC0603 1008 61L0603390 OF CHIP 390 OHM 1 10W 1 61L0603103 RST SM 0603 RCO603 10K 6110603103 RST SM 0603 0603 10K 1 6110603103 RST SM 0603 RC0603 10 61L0603103 RST SM 0603 0603 10 61L0603000 RST SM 0603 OR 61L0603222 RST SM 0603 RG0603 2K2 61L0603103 RST SM 0603 0693 10K 61L0603103 RST SM 0605 RC0603 10K 61L0603103 RST SM 0603 RC0603 10K 61L0603103 RST SM 0603 5C0603 10K 61L0603103 RST SM 0503 RC0603 10K 1 1 61L0603103 RST SM 0603 RC0603 10K 61L0603103 SM 0603 RC0603 10 61L0603101 RST SM 0603 RC0603 100R 61L0603101 N RST SM 0603 RC0603 100R 61L0603221 RST SM 0603 RC0603 220R 61L0605472 RST SM 0603 RC0603 4K7 6110803121 CHIPR 120 OHM 1 10W 61L0603471 CHIPR 470 OHM 5 1 10W 61L0603102 RST SM 0603 RC0603 1K P 61L0603101 RST SM 0603 RC0603 100R 61L0603000 RST SM 0603 JUMP MAX 0R PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS 48 LM
16. 0 50V X7R PCS C608 1000PF 10 50V X7R PCS C609 1000PF 10 50V X7R PCS C610 65G0603102 32 sor 10 50V X7R PCS C618 65G0603104 32 l CHIP 0 1UF 50V X7R PCS C619 65G0603104 32 CHIP 0 1UF 50V X7R PCS D201 93G1004 3 5514 1 PCS D202 93G1020 1 S GS1D 1 PCS D301 93G 6433P BAV99 1 PCS D302 93G 6433 BAV99 1 PCS D303 93G 4 BAV99 1 PCS D304 933 6442 P 1 PCS D305 93G 6442 P 1 PCS D306 936 6433P 1 PCS D307 93G 6433P 1 PCS D308 936 6433P 1 PCS D309 93G 6433P 1 PCS D310 93G 6433P 1 PCS D311 93G 6433P BAV99 1 PCS D312 93G 6433P BAV99 PCS 45 LM928 D313 93G 6433P BAV99 1 PCS AX hrs D323 TZMC5V6 1 PCS T qu Ie D325 TZMC5V6 1 5 0601 LL4148 GS08 bo PCS FB202 CHIP BEAD 600 OHM 0805 PCS FB301 RST SM 0603 JUMP MAX 0R PCS FB302 RST SM 0603 JUMP 9R PCS FB303 RST SM 0603 JUMP OR PCS FB304 BK1608 HW 431 PCS FB401 CHIP BEAD 600 OHM 0805 PCS FB402 CHIP BEAD 600 OHM 0805 PCS FB403 71G 567601 CHIP BEAD 600 OHM 0805 PCS 28404 718562600 _ CHIP BEAD 600 OHM 0805 PCS FB405 71056401 CHIP BEAD 600 OHM 0805 5 28406 716 567601 CHIP 600 0805 PCS R201 CHIPR 20K 5 1 10W PCS R207 61L0603472 RST SM 0603 RC0603 4K7 1 PCS 46 LM928 8208 8209 8211 8212 8215 R301 R302 R303 R304 R305 R306 R307 R308 R309 R310 R311 R312 R313 R314 R315 R316 R317 R318 R319 R320 8321 8323 8324 8325 8326 8327 83
17. 0 SCREW PCS 4 M1G 330 4120 SCREW PCS 39 LM928 M1G 340 10120 SCREW 4 PCS M1G1730 6128 7 PCS 705G980KB34120 1 PCS E750L 750LLU90N45 1 PCS 705G980KB34120 1 PCS 33G4761AS STAND PLATE 2 PCS 128394 3 33647145 O Pes STAND COVER Pcs HINGE COVER 5 C Pos ADPC12650AD LCD ADAPTER ASS Y FOR S PCS 40T 154501 1 HEPOT GND LABEL FOR MO PCS 40T 581700 i LABEL 1 04 PCS 40T500W615 1C ID LABEL 1 02 PCS 45T 88525 E PE BAG 1 02 PCS 521 1211 ADHESIVE TYPE 2 04 5 71T 55500 75 FERRITE BEAD 3 5 3 1 3 1 PCS 89T 171 36 1 2M 16AWG 1185 STYLE 1 PCS 90V6 063500 T HEAT SINK 1 PCS 30V6083 1 1 PCS 1 330 8128 2 5 705L 990 57 01 1 5 W33V6045 D T 1 01 PCS W33V6046 D T 1 01 PCS A 95T 205430322 1 PCS BD901 93T 50460 16 U4KB80R 1 PCS C901 65V305M1022E3 1000PF 20 400VAC BY PCS 40 LM928 C902 65V305M1022E3 1000PF 20 400VAC BY 1 PCS C903 63T 107474 HS 0 47UF 20 275VAC PCS C904 67T 30515114H 150UF 400V HERMEI PCS C911 67T215C102 4H 1000UF 25V LZ HER MEI PCS C912 67T215C102 4H 1000UF 25V LZ HER MEI PCS C919 65G306M4722BP 4700PF 20 400VAC PCS C920 67T215C102 4H 1000UF 25V LZ HER MEI PCS CN901 87T 501 11 RF AC SOCKET PCS D901 93T 6026T52T FR107 1 PCS D902 93T 6038T52T FR103 PCS D904 93T 60237 SRF20100C 1 PCS as
18. 080 PCS C206 0 1UF 10 25V X7R 080 PCS C208 CHIP 50V NPO PCS C209 CHIP 0805 PCS C210 65G0805105 27 e 1UF Y5V 0805 PCS C211 65G0805105 27 l CHIP 1UF 0805 PCS C212 65G0805105 27 CHIP 1UF 0805 PCS C219 65G0805105 27 CHIP 1UF Y5V 0805 1 PCS C220 65G0805105 27 CHIP 1UF Y5V 0805 1 PCS C221 65G0805474 27 CHIP 0 47UF 25V Y5V 1 PCS C222 65G0805474 27 CHIP 0 47UF 25V Y5V 1 PCS C230 65G0805104 22 0 1UF 10 25V X7R 080 1 PCS C231 6560805104 22 1 PCS D101 9305004 1 1 5 0201 93G3004 2 1 PCS D202 93G3004 2 1 PCS D203 936 395 3 T 1 PCS D204 936 39S 3 T 1 PCS D205 93G 6432P 1 PCS D206 93G 6432 LL4148 1 PCS D207 93G 6432 LL4148 PCS 50 LM928 0208 93G 6432 114148 1 PCS Q205 PMBS3904 PHILIPS SMT 04 1 PCS 0206 PMBS3904 PHILIPS SMT 04 NJ PCS Q207 PMBS3906 PHILIPS SMT 06 1 PCS Q208 PMBS3906 PHILIPS SMT 06 5 R102 RST SM 0603 JUMP 1 PCS R201 CHIP 30K OHM 5 1 10W bo PCS R202 CHIP 5 1K OHM4 10W PCS R203 CHIP 5 1K OHM4 10W PCS R204 RST SM 0603 0603 10K PCS R205 RST SM 0603 RC0603 47K PCS R206 RST SM 0603 RC0603 47K PCS R208 RST SM 0803 RC0603 4K7 PCS R209 RST SM 0603 RC0603 4K7 PCS R210 61L0603153 CHiPR 15 5 1 10W PCS R211 61L0603153 CHIPR 1SKOHM 5 1 10VV PCS R212 6110603392 CHIP 3 9K OHM 1 10W PCS R213 61L0603392 CHIP 3 9K OHM 1 10W PCS R214 61L0603392 NN PCS R215 61L0603392 x PCS
19. 1 512 2 Ero g Sy SMS 5 94 0 a 27 oir g K 71511423 1 512 2 C212 88 BR MM 33 0300509 2 D3120313C3236305 C315 8336 932 OR R212 R205 0311 58 03060307 8 gt 0202 5 55 038 0219 HM 3 0520 28 LM928 7 2 ADAPTER BOARD 715V901 1 8 C8 6 NR982 2158866 29 LM928 7 3 INVERTER BOARD 715L1299 3 CAUTION 3 HIGH VOLTAGE 1205 CON201 gt m PT201 J211 J221 J212 D 4215 7 5 1214 N N 4215 4217 2 J222 J208 575 2 I 1229 C1 4 AVO v WA SMS 1 19108 181 7 4 KEY BOARD 715L1317 1 2 8 gt V SMS 5 9400 A E Ex fi CM Sts 30 8 81 EQUIPMENTS and TOOLS Voltmeter Oscilloscope Pattern Generator DDC Tool with an IBM Compatible Computer Alignment Tool LCD Color Analyzer Service Manual C0 m oO User 31 LM928 LM928 8 2 TROUBLE SHOOTING 8 2 1 Main Board No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100 240 is normal Reinseri or check the Adapier inverter section BS
20. 14 Check ihe output PT201 PT202 Check connecter amp lamp Change PT201 PT202 35 AOC LM928 LM928 8 2 3 Board OSD is unstable not working Is Key Pad Board connecting normally N Connect Key Pad Board Is Button Switch normally Replace Butiori Switch N 7 Replace Key Pad Board RA Is Key Pad Board normally Check Main Board 36 LM928 LUMINANCE ADJUSTMENT Approximately 30 minutes should allowed warm up before proceeding White Balance adjustment 1 How to do the Chroma 7120 MEM Channel setting A Reference to chroma 7120 user guide B Use SC key and NEXT key to modify XyY value and use ID key to modify the TEXT description Following is the procedure to do white balance adjust 2 Setting the color temp you want A MEM CHANNEL 3 7800 color 7800 color temp parameter is x 296 320 y 311 320 180 cd m B MEM CHANNEL 4 6500 color 6500 color temp parameter is x 313220 329 320 180 cd m 3 Into factory mode of AOC LM928 Turn on power press the MENU button pull out the power cord and then plug the power cord Then the factory OSD will be at the left top of the panel 4 Bias adjustment Set the contrast to 50 Adjust the Brightness c to 80 5 Gain adjustment Move cursor to F and press MENU key A Adjust C2 7800 color tempera
21. 15 0 00 FF FF FF FF FF FF 00 05 28 9 OB 95 OD 00 16 30 01 03 68 26 78 6A 6 1 59 48 99 23 32 17 59 BF EF 00 81 80 01 01 01 01 01 01 01 01 48 01 01 01 01 01 01 30 2A 00 98 51 00 2A 40 30 70 64 13 00 78 2D 11 00 00 1E 00 00 00 FF 00 31 32 33 80 34 35 36 37 38 39 30 31 32 33 00 00 00 00 37 96 4B 53 OE 00 0A 20 20 20 20 20 20 00 00 00 FC 112 00 4 4D 39 32 38 20 20 20 20 20 29 2 00 2 D SUB Digital 00 01 02 03 04 05 06 07 08 Poo er o 2 or as oo 40 28 40 m I 9 Cw s 29 m oo 46 a0 38 AOC LM928 11 BOM LIST T980KA2HLLMKN Location Part NO for TPV Description Quantity Unit ADPC1260AD LCD ADAPTER BOARD ASS Y 1 PCS BACK COVER NV Pcs uen lt S Pos WARRANTY CARD pos 44G3922 1 PULP MOLD PCS 44G3922 2 PULP MOLD PCS 44G3922615 5A CARTON PCS 456 7628RN N S BAG FO MANUAL BASE PCS were os E 1 456 88626 1 5 526 1185 MIDDLE TAPE FOR CARTON CM Pos M16 130 512
22. 27 QKI 1 16W Standb B Q605 7 8 7 REK EW Mute Lo ad 9 10 PMBS3904 12 3 srpEn gt 1 16W 13 14 OUTA VCC5V 0619 C613 C612 651 0 106 16V SS a 10K 1 16VV CONN olume 4 53904 VCPu VCPU FB603 600 406 Trew 28617 8618 C617 C611 Canel R640 R642 1207 1 16W 1200 1 16W 100pF 1uF 25V 0602 8616 PMBS3906 LED G 4 NB Q601 CN602 B RES LED O ORY TION K PMBS3906 A VEN 2 47K0 1 16W o LED GRN 3 4 ORANGE 9 AUTO _ 8620 4700 1 1 6W 5 6 11647 ENTER RIGAT MAAA 4701 7 8 0623 470 Tew POWER rot TW 9 10 11 12 C606 C608 c610 13 14_ our C609 gc purl 15 F C607 0 001uF 0 001 L 0 001uF 0 001uF 0 001 CONT6A TSU16 56AK FOR 5 512 SWITCH Document ev 8 B 24 ate Wednesday October 06 2004 6 2 ADAPTER BOARD 715V 901 1 8 AOC LM928 8922 470 1206 0 5VV razonalsosw T901 R925 LED1 PQ26 22 5 47241206 A C910 BD901 102 500V 1208 GBU 4A 600V R903 TY 624 1206 12V t 1903 lt S C904 2914 929 73A 253 91L C943 914 R904 lt T 245 150UF 400V 624 1206 0905 10Q0UF 25 1000UF 25V 1000UF 16V 0 1UF 0805 X7R 07 8 20 100 H OOCUR 25V J copper mangaheSe 8
23. 31 8332 8335 8336 R341 R342 R343 61L0603103 RST SM 0603 RC0603 10K 61L0603000 RST SM 0603 JUMP MAX OR 61L0603103 RST SM 0603 RC0603 10K 61L0603472 RST SM 0603 RC0603 4K7 61L0603513 CHIP 51K OHM 1 10W 61L0603330 CHIPR 33 OHM 5 1 10W 61L0603330 CHIPR 33 OHM 5 1 10W 61L0603330 CHIPR 33 OHM 5 1 10W 6110603471 CHIPR 470 OHM 5 1 10W 61L0603101 RST SM 0603 RC0603 1008 61L0603101 RST SM 0603 RC0603 1008 61L0603101 RST SM 0603 RC0603 1008 61L0603103 RST SM 0603 0603 10 61L0603101 RST SM 0603 RC0603 1008 61L0603102 RST SM 0603 FC0603 61L0603102 RST SM 0603 3 1K P 61L0603101 RST SM 0605 0603 1008 61L0603222 RST SM 0603 RC0603 2K2 61L0603222 RST SM 0603 5C0603 2K2 61L0603101 RST SM 0503 RC0603 1008 I 61L0603101 RST SM 0603 RC0603 1008 61L0603103 SM 0603 RC0603 10 61L0603103 RST SM 0603 RC0603 10K 61L0603101 N RST SM 0603 RC0603 100R 61L0603101 RST SM 0603 RC0603 100R 61L0605103 RST SM 0603 RC0603 10K 61L0603000 RST SM 0603 JUMP MAX 0R 1 61L0603100 CHIP 10 OHM 1 10W 1 1 1 1 1 1 1 1 1 1 1 PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS 47 LM928 8344 8345 8346 8347 8348 8349 R350 R402 R403 R404 R405 R406 R407 R502 R503 R601 R602 R603 R604 R605 R606
24. 525 31 469 59 940 25 175 VGA 640x480 72Hz 832x520 37 861 72 809 31 500 640x480 75Hz 840 x 500 37 500 N 75 00 31 500 800x600 56Hz 1024x625 35 156 N P 56 250 NP 36 000 syan 800x600 60Hz 1056x628 37879 P 40 000 800x600 72Hz 1040x666 48 77 72 188 50 000 800x600 75Hz 1056x625 46 875 P 75 000 P 49 500 1024x768 60Hz 1344x806 48 363 N 60 004 N 65 000 XGA 1024x768 70Hz 1328x806 56 476 N 70 069 N 75 000 1024x768 75Hz 1312x800 60 023 75 029 78 750 1280x1024 60Hz 1688x1066 63 8 80 020 P 108 000 1280x1024 75Hz 1688x1066 79 976 P 75 025 P 135 000 IBM MODES Hohzontal Vertical T DOS 720x400 70Hz 900x449 31 469 70 087 28 322 DOS 640x400 70Hz 800x449 31 469 70 087 25 175 XGA 1024x768 72Hz 1304x798 57515 72 1 75 000 MAC MODES VGA Ws 640x480 67Hz 864x525 35 000 N 66 667 N 30 240 SVGA 832x624 75Hz 1152x667 49 725 N 74 551 N 57 2832 XGA 1024x768 60Hz gt 1312x813 48 780 60 001 64 000 1024x768 75Hz 1328x804 60241 74 927 80 000 10 LM928 4 3 POWER SUPPLY REQUIREMENTS A C Line voltage range 100 V 240 V A C Line frequency range 50 3Hz 60 3Hz Current 1 5A max at 100V 0 8A max at 240 V Peak surge current lt 55A peak at 240 VAC and cold starting Leakage current lt 35 No advance effects loss of information or defect Power line surge with a maximum of 1 half wave missing p
25. 805472 61V0805332 61V0805240 2F 61V1206100 61V1206159 61V1206159 61V1206159 61V1206159 61V1206470 61V1206470 61V1206472 61V0805102 61 0805365 61V0805102 61VC805153 51 08905152 61V0805154 61V0805332 61V0805931 1F 61V0805243 1F 61V1206159 61V0805683 93T 39S 12 T 93T399S 3 LM358D CHIP 620K 5 1 4W CHIP 620K 5 1 4W CHIP 200KOHM 1 4W CHIP 200KOHM 1 4W CHIP 200KOHM 1 4W CHIP 200KOHM 1 4W CHIP 10 OHM 1 8VV 1 5 5 1 4W 5 5 1 4W CHIP 47 5 1 4W CHIP 47 5 1 4W CHIP 4 7KOHM 5 1 4W CHIPR 1K OHM 5 1 8W CHIP 36KOHM 1 8W PMBS3906 PHILIPS SMT CHIP PMBS3904 BY PHILIP CHIP 1MOHM 5 1 4W CHIP 1MOHM 5 1 4W CHIPR 5 1 5 1 4W CHIPR 470 OHM 5 1 8W CHIRP 4 7K OHM 5 1 8 d CHIP 3 3K OHM 4 596 1 8VV CHIP 24KOHM 1 1 8W 1 1 1 1 1 CHIPR 15K OHM 5 1 8W 1 CHIP1 5OHM 5 1 4W BZT52 C11 CHIPR 1K OHM 5 1 8W CHIPR 68K 5 1 8W RLZ20B LLDS 1 1 1 1 1 1 1 1 PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS PCS 42 LM928 C905 C906 C913 C924 904 R924 T901 0901 C202 C204 C208 C211 C215 C405 C414 C419 C422 C424 C427 C509 C603 CN201 CN301 CN302 CN503 CN602 401 601 201 203
26. 928 R639 61L0603101 RST SM 0603 RC0603 100R 1 PCS R644 61L0603103 PCS R645 61L0603103 PCS R646 61L0603103 PCS R647 61L0603223 PCS 8651 61L0603912 PCS R652 61L0603103 PCS RN601 61L125103 8 PCS RN602 61L125103 8 1 PCS U201 56G 563 31 tu PCS 1 PCS U202 56G 563 7 AIC1084 33PM U301 56G1133 34 M24C02 WMN6TP U302 56G1133 34 M24C02 WMN6TP PCS 0401 566 562 82 TSU56AK LF U601 56G1125543AWH MTV512 44PIN PLCG U602 56G1133 56 M24C16 WMN6TP IDPC1942AUA1 ID1942AUA1SMT SMTASSY m PCS 40G 45762412B CBPC LABEL PCS C101 67G215V221 4K EC 2206 25V PCS C102 67G215V221 4K EC 220F 25V PCS C103 67G215B471 3H sur 16V LTR471M1CF11V PCS C201 67G215C151 4H LOW ESR 1500 25V 8 7MM PCS C207 67G 305330 7T SS 33UF 105 PCS C213 63G210J1842A2 PMS 0 18UF 250 1 PCS C214 63G210J1842A2 1 PCS C215 65G 3 2206 x 1 PCS C216 65G 3J22068T 1 PCS C217 65G 3J2206ET 1 PCS C218 65G 3J2206ET 22PF 5 SL 3KV 1 PCS C223 67G215C151 4H 1 PCS CON101 3041CF 1 PCS J229 71G 55 9 FERRITE BEAD PCS 49 LM928 1101 716 5528 FERRITE BEAD 7 62 5 08 1 PCS TT C108 0 1UF 10 25V X7R 080 1 PCS C109 0 1UF 10 25V X7R 080 PCS C110 0 1UF 10 25V X7R 080 PCS C111 0 1UF 10 25V X78 080 PCS C202 10 25 7 PCS C203 CHIP 1UF 0805 PCS C204 0 1UF 10 25V X78 080 PCS C205 0 1UF 10 25V X7R
27. PS102R 3R3 1206 8910 43924 12VSMD R91 471 089 41 DIP 8912 472 0805 C906 472 080 2UF 25V R926 R930 R933 4709PF 275V 02 0805 52 08059311 0805 1 474 080 2090 C915 C903 10 47uF 3doV Q902 20V SMD ae ki 2 3906 1903 H 03 0805 X7R R928 VER 2 102 0805 102PF 250V 102 50 3903 2 2 3904 R91 C908 123 1 R934 332 805 1474 0805 5 2431 0805 1 N 918 0903 7 gt 104 0805 X1R N C IC902 144148 8914 ST LM358 R931 open 0805 N C 154 0805 3 IC901 D906 7 901 0901 BAW56 SMD R932 2 5A 250V GATE 6 302 08052 5 4 8 SK2843 SG6841 160 1206 921 104 0805 X7R BiCOMS R92 153 8805 CN901 SENSE N PLUG AC MALE R936 683 08 C916 C917 104 0805 X7R R921 471 0804 X7R R5 1206 105 0805 X7R Title VFB 25 AOC 1260 SG6841 5 Document Number ADPC1260A layout 715L901 1 8 Wednesday April 09 2003 LM928 6 3 INVERTER BOARD 715L1299 3 L103 12V BEAD 71L55 19 U101 SI 8050SD 102 1A 15004 731 253 138 84152 5 71155 28 881304 15 C102 220uF 25 C10 0 C110 1uUF 25V CON102 CONN 33L8009 12L H 2201 4A63V 12V lt 0202 202 0 1uF 25VQ201 DTA144WKA C204 0 1uF 25 ON OFF R202 210 5 14 the RN 5 OP 16VV C207
28. R208 1 16VV 4 7uF 16V 205 C209 47 16W C205 1uF 25V 0 1uF 25V 0 DM E 9 t 5x0L 8 30KQ 1 16W 5 E rok C203 1uF 25V 0 1uF 25V 150uF 25V 6 Q204 510 Di Hsi 01 Di AO44 53904 235 3 9K 16 is power GND d 11 e AOC LM928 0203 1201 1 Dt 8 R224 R225 R226 R227 1 HVL 51 D1 F3 8 120UH 4 51 D1 r3 CN201 Gi D1 D20 C215 R212 AO4411 5_PT201 9 3 9K 4 16VV 8216 RLZ 1B H 4 2200 1 16W 22pF 3KV C21 Q209 1uF P5V 8220 3 TP4 HVL 33L8020 2D amp 33L8021 2D LAYOU 3 2 D201 15K 4 16 020 25 5706 z 6 PNBS3904 SR24 H232 CN202 i ide R2J4 1 0207 80AL15T 7 YS 3 9 f 16V PMBS3906 8222 12 C 1 16W 0210 R218 33L8020 2D amp 33L8021 2D LAYOUTC 700 1 1 0207 240 N414 Be 1 C21 0221 258 0 4 7UF 25V 1V 25V 12K 2 HVL TP5 HVL 33L8020 2D amp 33L8021 2D LAYOU R233 A jew D206 1N4148 CN204 C218 22pF 3KV 3318040 20 amp 33L8021 2D LAYOU C222 500 1 16VV 0 47uF 25V F ER is signal GND 27 LM928 7 PCB LAYOUT 7 1 MAIN BOARD R207 C207 SUN 715L1423
29. djust Key is used to automatically set the H Position V Position Clock and Phase Power Indicator Green Power On mode Red Power Saving mode Blank Power Off Mode LED GREEN BLINKING 0 5s period Out of Range N N SJ Control Buttons NO Name Within OSD Without OSD 1 Auto Exit Exit OSD or back to previous menu Auto configuration 2 1 the cursor to up 2 9X Activate the brightness 2 the value of the selected item 1 Move the cursor to down 3 Oly Activate the contrast menu 2 Decrease the value of the selected item 4 MENU Select Function or select Sub menu Activate OSD main menu 5 Indicator Light Green On Red Save Green On Red Save 6 POWER Power On Off Power On Off LM928 3 3 ADJUSTING THE PICTURE Adjustment steps 1 Press the MENU button to activate the OSD window 2 Press lt or gt to select the desired function 3 Press the MENU button to select the function that you want to adjust 4 Press lt or gt to change the settings of the current function 5 To exit and save select the exit function or leave the monitor alone for 10 seconds If you want to adjust any other function repeat steps 2 4 Luminance OSD TABLE Main Sub Sub Menu Main Menu Item Menu Description Reset Value em Icon Icon 9 o Recall Cool Contrast Contrast Co
30. er second DC output Voltage 5VDC 50 12VDC 50 CURRENT 1 5Amp 5V 2 Amp 12V 4 4 PANEL SPECIFICATION 4 4 1 Display Characteristics The following items are characteristics summary on the table under 25 C condition ITEMS SPECIFICATIONS _ 480 19 0 376 32 H x 30106 V PxesHxV 1 2 128063 1024 ___ 0 294 per one triad gt 0 294 PixelArrangement RGB Stripe Display Normally White 550 1 Typ msec ___ 8 ms Typ on off 172 NTSC o 50V Power Consumption Wait 28W Typ VDD line CCFL line lt Inverter All black pattern Weight fGrams 2700 Physical Size 4 Imm 396 H x 324 V x 18 D Typ Electrical Interface N Dual channel LVDS Support Color 16 2 colors 6 bit data FRC data Temperature Range Operating 0 to 50 Storage Shipping c 20 to 60 TCO 03 compliance n TCO O8compliance Note Surface Treatment __ Hard coating Non Glare treatment LM928 4 4 2 Characteristics do Viewing Angle degree Horizontal Right 65 degree CR 10 Left 65 degree Vertical Up 70 degree CR 10 55 60 Color Chromaticity Coordinates CIE ET 1 38 Blue x 0 108 gt 0 168 RE 207 0 047 0 077 0 107 sp Color Coordinates CIE W
31. ge will be Language 63 French set to English Espanol Set OS display language to Spain Set OSD display language to Italiano Italian Set OSD display language to Simplified Chinese Show the resolution H V frequency Information i Information N A and input port of current input N A timing Clear each old status of Yes N A Auto configuration and color Reset RSI temperature to Cool Do not execute reset return to main No menu Exit VII N A N A Exit OSD N A LM928 4 INPUT OUTPUT SPECIFICATION 4 1 INPUT SIGNAL CONNECTOR 1 D SUB connector x vo _6 ee VGA connector layout 2 DVI D connector PINNO DESCRIPTION PAN NO TMDS data 2 13 TMDS data 2 M TMDS data 2 4 Shield 15 TMDS 40 NC TMDS data 41 NC 7 409 Vertical Sync TMDS 1 is data 1 3 Shield FMDS data 3 4 c 24 Pin Color Display Signal Cable 4 2 FACTORY PRESET DISPLAY MODESD AOC LM928 VESA MODES Horizontal Vertical Nominal Sync Nominal Sync Nominal Mode Resolution Total 2 TRAY Pes MHz 640x480 60Hz 800
32. hite 0 283 4 91313 0 343 White Luminance at CCFL 7 0mA dim central point cdm Nus 1 270 L 17582 lt as Fike EE LM928 4 4 3 Parameter guide line CCFL Inverter 1TFTLCD Module Symbol Parameter Min Max Units Condition Logic LCD Drive Volt 10 Voltage VDD current 1500 1900 Vin 5V All Black Pattern 30 at frame rate 75Hz LCD Inrush Current Inrush Current VDD Power Watt Vin 5V All Biack Pattern 30 at frame rate 75Hz ra Allowable Logic LCD mV Drive Ripple Voltage p p VDDns Allowable Logic LCD Drive Ripple Voltage 2 Backlight Unit Symbol ISCFL CCFL standard current emer FCFL CCFL Frequency Tm Ta 25 C Note 2 ViCFL CCFL Ignition Volt 0 C End of the lamp wire 0 Note 3 connector FL Ignition Volt ViCF CCFL Ignition Vo ven 25 of the lamp wire Ta 25 C Note 3 connector VCFL CCFL Operation Voltage ye 24 CCFL Power consumption for Watt reference LTCFL SFL life Time 40 000 50 000 Sce Ta 25 C Note 6 13 5 BLOCK DIAGRAM 5 1 MONITOR EXPLODED VIEW 34G1387 BEZEL 750LLU90N45 PANEL r
33. i 3304760 LENS KEY PAD E E l L n 15G8073 5 MAIN FRAME SHIELD Er e 52L6025 11699 INSULATE SHEET 2491359 STANDEOWER 14 isa 85G 676 1 1 928 3401388 3401393 COVER 7 37G 504 1 3401391 STAND UPPER 33G4761 AS C STAND PLATE ab 3401392 III _ HINGE COVER 34G1393 COVER 206 017 1 DIECASTING 12G 394 3 RUBBER FOOT LM928 5 2 SOFTWARE FLOW LM928 1 MCU initialize 2 Is the EPROM blank 3 Program the EPROM by default values 4 Get the PWM value of brightness from EPROM 5 Is the power key pressed 6 Clear all global flags 7 Are the AUTO and SELECT keys pressed 8 Enter factory mode 9 Save the power key status into EPROM Turn on the LED and set it to green color Scalar initializes 10 In standby mode 11 Update the lifetime of back light 12 Check the analog port are there any signals coming 13 Does the scalar send out an interrupt request 14 Wake up the scalar 15 Are there any signals coming fr
34. ine For CCFL 0214 13 5 Block Diagram a uu sP 14 5 1 Monitor Exploded RRR 14 5 2 Software Flow Chart esses SN 15 5 3 Electrical Block NN ee ee ts 17 5 3 1 Main i ecu E 17 5 3 2 Inverter Power N Wa lt _23 _ _ 3 18 6 CMN DS 19 6 1 gt _ _ _ _ __ gt gt gt _ 19 6 2 Adapter Board A nM EE 25 6 3 Inverter Board gt 7 gt 26 Te PCB Layouts ERR 28 gt _ _ gt 28 Adapter DNS 29 ___ _ _ 2 2 22 2 2 _ lt _ _ _ 30 4 D D OIL IT 30 8 Ennn nnns ennn nunnunum 31 8 1 Equipments and Tools
35. n 10K 1 16W pa e Wes ma 7 2 3 p A ES R339 47K 1 16W DATO 7 A mE B 4 1 5 spa 202 oon DDCCI SEL 6 prad bi gr 4 I24CG02WMN6 PMBS3904 H T RAY SL VIR Re 4 M DAT2 13 R 4 8 9 2004 Add DAT4 5 Solution 1006 6 pars 4 2 2004 Add W P control by MCC DAS 20 N aye RO 2 1 NI 5 3771 4 5 D306 D307 D308 D309 D313 JACKNC amp 8 4 BAV99 99 BAV99 3 V99 veosv 0318 0319 C320 Ca321 Ca25 Tul 21 TSU16 56AK FOR MYSON512 SWITCH Document Number 9 INPUT lev B ae Wednesday October 08 2004 Bheet 3 of G G CO G G G G VDVI O 2 6 VAD VPLIVDVI VDPLL VPO 2 VCC33 FB401 VPO Ss S 600 405 10VL 16V 40624072408240924100411 4122413 0 1u 1u 1U 1u 1u 1u 1u 1uF 5 0401 55 1 e o o o 88 55 a 5655555 8888 2 959000006 102 PAO lt lt
36. ntrast from Digital register gt Value Luminance p Recall Cool Brightness Backlight Adjustment Brightness Value Adjust Picture Phase to reduce Focus Do Auto Config Horizontal Line noise Image Setup Adjust picture Clock to reduce Do Auto Config Vertical Line noise Adjust the horizontal position of the H Position Li Auto picture Image Position Adjust the vertical position of the Position f Do Auto Config picture Recall warm Color Temperature The Color Color Temp A C1 N A from EEPROM Temperature will be Recall cool Color Temperature from to Cool C2 N A EEPROM User Red R Red Gain from Digital register LM928 Green Green Gain Digital register User Blue B Blue Gain from Digital register Analo Select input signal from analo ai 4 N A Input Select WE source D Sub Select input signal from digital Digital N A N A source DVI gt Adjust the horizontal position of the H Position 50 OSD Adjust the vertical position of the OSD Setup 9 Position P 50 OSD OSD Timeout Adjust the OSD timeout 10 Set OSD display ianguade to English N A English Set OSD display ianguage to Deutsch N A German Set OSD display language to Fran ais N A The Langua
37. om analog port 16 Display No connection Check Signal Cable message And go inio siandby mode after the message disappear 17 Program the scalar to be able to show the coming mate 18 Process the OSD display 19 Read the keyboard Is the power key pressed 16 LM928 5 3 ELECTRICAL BLOCK DIAGRAM 5 3 1 Main Board LCD Interface CN503 MCU Scalar IC TSU56AK MTV512 Include ADC OSD U601 U401 EPR_SDA EPR_SCL H syne D_H sync EEPROM Key Board D V sync AT24C16N Control 0602 D Sub DVI I only Connector Connector CN301 CN302 Crystal 14 318MHZ X401 1 Y a DB15_SDA DB15_SCL DDC2_SDA DDC2_SCL EEPROM EEPROM 24002 24002 0301 0302 17 AOC LM928 5 3 2 Inverter Power Board Bridge Rectifier and Filter Start Circuit R903 R904 CN102 Feedback Circuit Rectifier diode AC input Transformer EMI filter PWM Control IC OSC and DC Convert MOSFET Output Circuit Q203 Q204 Circuit PWM N Control IC ON OFF Control DIM Feedback Circuit Over Voltage Protect ES 18 6 SCHEMATIC 6 1 BOARD 715L1423 1 512 2 TXD RXD DDC CLK DDC DAT per ov r B DDCCI_SEL 3 INPUT B3 DDCCI SEL
38. ture 1 Switch the Chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM Channel to Channel 3 amp with up or down arrow on chroma 7120 3 The LCD indicator chroma 7120 x 296 320 y 311 320 Y 180 cd m 4 Adjust the RED of color1 on factery window until chroma 7120 indicator reached the value R 100 5 Adjust the GREEN of colori factory window until chroma 7120 indicator reached the value G 100 6 Adjust the BLUE of colori on factory window until chroma 7120 indicator reached the value 100 7 Repeat above procedure itern 4 5 6 until chroma 7120 RGB value meet the tolerance 210022 B Adjust C1 6500 color temperature 1 Switch chromia 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 4 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 313 320 y 329 320 Y 180 cd m 4 Adjust the RED of color3 on factory window until chroma 7120 indicator reached the value R 100 5 Adjust the GREEN of color3 on factory window until chroma 7120 indicator reachedthe value G 100 6 Adjust the BLUE of color3 on factory window until chroma 7120 indicator reached the value B 100 7 Repeat above procedure item 4 5 6 until chroma 7120 RGB value meet the tolerance 10032 C Turn the Power button off to quit from factory mode 37 LM928 10 EDID 1 D SUB Connector Analog 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
39. uF 16V 0425426 0 1u 1uF VAA4 406 VDPLL 2 VM4L 1 600 OHM ca _ UNES M T428 0 1uF TSU16 56AK FOR MYSON512 SWITCH Document Number SCALER ev 22 Wednesday October 06 2004 4 4 PA 0 9 PB 0 9 AOC LM928 LVBOM 0 1 RZ 2 0 LVBOP 1 31 24 T 1 2 2 5 2 LVB2P LVBCKM E 8 LVBCKP ___ 2 91 10 LVB3P __ 7 ii 12 RXEO LVAOP __ ___ 1 13 14 RXE1 LVAIP _ LVA2M 545 16 RXE2 LVA2P ___ ___ _____17 18 RXEC LVACKP ___ ___ _ 19 20 RXE3 LVA3P 21 22 UZ n 23 24 CONN R502 Sl og 1 16VV VLCD VLCD 2 509 C510 8503 22uF 16V 0 1u 2 2 0 1 16W itle TSU16 56AK FOR 5 512 SWITCH Size Document Number PANEL INTERFACE heet 23 Rev B LM928

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