The AVE55 service manual
Contents
1. CN3 BUFFER DGND 1 1 23 3 4 psv 2 D5V SWITCH AGND 3 rT i asa ase 1515184167169 4 ASV 147 149 171 177 32 34 38 41 67 69 12 5 ADO ADO pp re 1 513 BUS BUFFER GND 6 CMD TE ze 16 equae FGND 7 30 ial i ned 1C37 2 4 prp 180 31 saliva yin 156 19 SWITCH 108 1 801 4 4 o vosv Board pene 1c801 3 4 2 PS PALINTSC 8 TP6 YADO YAD7 AINO AIN7 READ VCO SHDG Eus SHGA 1C53 D930 ST2 REGO REGS ee BINO BIN7 159 L929 READ VCO D0 D7 BoB 078 STR EE SHGB OSC2IN 1 901 SWITCH DOB D7B ST1B 66 11 IC43 WRITE CONTROL REGOB REGSB 7480 sT1 85 92 YADO YAD7 EXSYNC 98 SHDG EXI YADO YADZ 08 078 ST2B 1918 TP9 1 39 A D CONVERTER 08 078 S128 m CN5 2 3 9 16 SY0 SY7 22 29 REGO BEGS E 1 500 BUFFER ving DA0 DA7 7 19 112125 1642 LINE MEMORY VD SOURCE 1R GND 33 1 ELECTRONIC VR mm 1C37 3 4 AMINO 75 82 P SOURCE 1R 35 IN2 OUT2 SWITCH 080 087 5 0 6 7 000 007 16 18 7 E HD SOURCE 1L 37 INT CONTi OUT Be WE SOURCE 1L GND 36 5 0130 Q133 5 Pam TOLMOTOLNZ SOURCE 28 GND s8 ELECTRONICVR _ 310804012 7 510505 1 2 BUFFER BUFFER TOLM7 SOURCE 2R IN2 OUT2 rere MIXING B ATE SOURCE2L INT OUTI RSTR SOURCE 2L GND 16502 5 WEST 64 UPS2. 9 DRI oe SVSELA SVSELB OSDCS OSDCS OSDDAT OSDDAT 1 4 25 28 OSDCLK OSDCLK OSDRST OSDRST 35 BOARD no BLOCK DIAGRAM OF MAIN BOARD 2 2 To Switch Board ARA s 5 53 831538 8 1 e mmm VD5V Q D2 FE IC4 MICROPROCESSOR 34 i 4 1 11 6 E it REGULATOR 0 out 2 GND 3 VBLK HBLK ae pu lt BIAS3 OWER LOWER 66 78 Vss eB age CA p XPOSI XPOSI 80 YPOSI YPOSI TAKE 5 SPEED SPEED D A CONVERTER SCANO SCANO 58 15 SCAN1 SCAN1 FADELD FADE SCAN2 SCAN2 FADECLK 15 FADE2 SCAN3 SCANS FADEDAT FADE3 SCAN4 FADE4 18 00 DATAO 48 ze Di DATAS SVSELA SVSELA 47 He ea DATAD SVSELB SVSELB HS p 7 5 DATA3 D4 DATA4 To 13 D5 DATAS b Main Board 1 2 2 w p se 06 DATA6 BUSCLK BUSCLK LEDCLK ASELO 9 sn ASEL1 Td BSELO KEYGATE co KEYGATE x2 xi DSDBAT OSDDAT gt OSDCS OSDCLK OSDCLK OSDRST OSDRST REGCLK R720 R735 REGO REGS 6 Bit bw DOB D7B 8 BIT ST1B ST2B EXPLODED VIEW Numbers show screws Description Binding Head Screws Binding Head Screws PACKAGING M41 Seri Labe Binding Head Tapping Screws
3. DC 34 Vcc Power supply terminal 35 signal input terminal zi T signa input termina XASO XAS1 po 37 XWE Write enable input terminal us 38 CCO 39 1 CC signal input terminals 40 XCC1 XCCO E XCC signal output terminals 42 O XWB signal output terminal ooo XDQ10 XDQ13 9 XDQ14 10 XDQ15 11 SEL ipa ipaa 18 Daio DQ signal input terminals 19 009 21 AS1 a 2 50 fT 24 DQ7 XAS signal output terminal XDQ signal output terminals o ee Rune fo 49 XDQ6 poor o 51 XASO EHS XDQ signal output terminals Ground termial XDQ signal output terminals SEL signal input terminal DQ signal output terminals No connection ur AS signal input terminal 26 ADJUSTMENT PROCEDURE 1 Test Equipment Required e The following Test Equipments are required for adjustment of the Digital AV Mixer WJ AVE55 Oscilloscope Frequency Counter Digital Voltmeter Vectorscope Waveform Monitor Underscanned Colour Video Monitor Video Signal Generator e Audio Generator Extension Board Part Number YWV01034AN for Power Board and Main Board as shown Fig 1 1 Fig 1 1 2 Disassembling Procedure for Adjustment e Referring to Fig 2 1
4. 11711440 melano 711 119 5 6 SHGA signal input treminal 120 Groundtemma fi2t Voo 1 Power supply terminal 122 5 68 SHGB signal input terminal 128 BIN7 I 124 BINO 725 E B signal input terminals H28 BIN2 He9 BINT 11 130 fi 1311 6 Ground terminai Name Description BCS Sal DLY1 signal output terminal E 35 BGP 0 Burst Gate Pulse output terminal 36 XBSO signal output terminal 37 TESTOUT 0 TEST signal output terminal 88 EXTO O External signal output termina im SD Data input terminals sm g co 4 2 TN signal input terminal Faa yesi i inal iur termina haspxs 1 XLS signal input terminal 1 XSY signal input termina 145 1 External signal input terminal 146 ____ Power supply terminal serai ro emea 148 DLYO DLYO signal input terminal O XH signal output termina 5011 11 SD signal input terminas RST signal input termina 152 RCLK Clock pulse input terminal aoa SD Data input terminals o Gos pas ou inal 5 156 Clock pulse output terminal 157 0 signal output terminal Vss Ground terminal oscar ip eal 160
5. 12 Select Button SELECT Used to select the POSITION SCENE GRABBER or COL CORRECT Notes 14 Scene Grabber Indicator SCENE GRA 15 Colour Correct Indicator COL CORRECT 1 Scene Grabber is available in pattern 2 When selecting the CHROMA ON mode and press the desired Effect Output Button colour correction is available 13 Position Indicator POSITION 16 Joystick Control This joystick Control has two functions setting the position of the specified wipe pattern moving the cur sor for setting the chroma key and correcting the Colour A bus B bus SOURCE SELECT Section SOURCE SELECT 47 TME feus AHHH ee Sy SOURCE SOURCE SOURCE SOURCE GACK 63 805 9 9 9 0 17 A bus Selection Buttons SOURCE 1 Used to select Source 1 Audio Video Signals 35 36 37 supplied to the rear panel SOURCE 2 Used to select Source 2 Audio Video Signals 38 39 40 supplied to the rear panel SOURCE 3 Used to select Source 3 Audio Video Signals 41 42 43 supplied to the rear panel SOURCE 4 Used to select Source 4 Audio Video Signals 44 45 46 supplied to the rear panel
6. Power supply terminal 2 4 64 on the Main Board is using the 3 Terminal Voltage Regulator YW78LO9UATE2 Description of these IC is as follows Output 1 GND 2 Input 3 Input 1 Output Over current Protector Reference Voltage Generator m 2 2 o 2 E s D gt GND 2 5 C28 42 and 59 on the Main Board are using the PAL 1 135 word x 8 Bit FIFO High Speed Line Buffers IC YWUPD42102G3 Description of this IC is as follows DOO 1 DIO DO1 2 DH 002 3 DI2 DOS 4 DI3 RE 5 WE RSTR 6 TOP VIEW DEM GND 7 VDD RCK 8 WCK DO4 9 005 10 06 006 11 06 DO7 12 DI7 RE Read Enable signal input terminal RSTR Reset Read pulse input terminal EI ONE CTI TE RN Ground terminal Rck T Resa Clockpusempurtemina s o Data output terminals 8 Bit Data input terminals 8 Bit WCK Write Clock pulse input terminal W Coc ple 8 voo Power suppy termina 19 RSTW 1 Reset Write Pulse input terminal 20 WE Write Enable signal input termina 21 ois fi 22 02 i Data terminals 8 Bit fon 24100 1 2 6 1C12 47 IC49 and IC50 on the Main Board are using the Single 2 Input AND Gate YWSC7SO8F Description of this IC is as follows IN1 1 5 Vcc Truth Table IN2 2 GND 3 4 OUT TOP VIEW 2 7 C14 on the Main Board is using the Dual 6dB Video Ampl
7. XSB3 10FX 9 XTB3 10CFX 2 XTB3 10CFXK Binding Head Tapping Black Screws 42 Printed in Japan C 573 5 12 23
8. 17 VG Horizontal Horizontal Horizontal a Size Position Address Counter Counter Counter 16 VR Vertical Address Registor 5 15 VBLK S9 Vertical Vertical Vertical vog gt Size Position Address 5 14 VC2 Counter Counter Counter 8 ae E De Sel 5 oF 5A amp 5 e 13 BLK2 2 O Character Generator 12 ROM 12 x 18 Bit x 255 word 11 BLK1 TOP VIEW Pin Dessin o Blanking 1 output terminal o Character singat output terminal O Blanking Puse 2 output termina Character signal output terminal Blanking pulse output terminal hn Oscillator output terminal Character Data output terminals Oscillator input terminal Test terminal Ground terminal Vertical Sync signal input termnal Horizontal Sync singal input terminal 18 2 24 1 15 on the Main Board is using the 8 Bit 12 Channel D A Converter YWM62352GP Description of this IC is as follows Vss VrefL 4 5 AO6 AO7 AO8 AO9 AO10 VDD VretU o o 0 o P n Address Decoder TOP VIEW 8 Bit Latch 8 Bit Latch DAC12 8 Bit R 2R Segment D A Converter 8 Bit R 2R Segment D A Converter GND 2 AO1 DI CLK LD DO AO12 AO11 Vcc 19 Vss VrefL Lower reference voltage supply terminal for D A Conv
9. 4 17 Vss TOP VIEW S YB1 C5 5 16 STBY TOP VIEW E C5 6 15 VCHA Vss DINI 7 14 DOUT1 GND DIN2 8 13 DOUT2 Truth Table ROUT1 9 12 RIN1 E B A X COMMON Y COMMON ROUT2 10 11 RIN2 OY Power supply terminal Positive side of capacitor 1 connecting terminal Power supply terminal Name Don t care Negative side of capacitor 1 connecting terminal 2 of capacitor 5 connecting 2 22 IC5 on the Main Board is using the Hex D FFs IC Negative side of capacitor 5 connecting YWMCO74HC175F terminal Description of this IC is as follows 7 DIN1 DIN2 Driver signal input terminals 10 ROUT2 Receiver signal output terminals 11 RIN2 12 13 DOUT2 1 Receiver signal input terminals Driver signal output terminals Charge voltage supply terminal Standby signal input terminal Ground terminal Negative side of capacitor 4 connecting terminal Ground terminal Positive side of capacitor 4 connecting terminal A Y OJO lt 0 io 2 O lt lt 1 6 Pin E ES 10 12 17 2 23 58 on the Main Board is using the Character Generator YWBU2874FV Description of this IC is as follows 20 HSYNC Protector Circuit 19 VSYNC Data Input Shift Register Character Horizontal Write n i 18 VB Size Address Address Counter 8 Register Register 8 Video RAM
10. 5 A Bus Y Gain Adjustment Test Point COMP Connector of REC OUT Rear Panel Adjust VR2 Y GAIN Main Board e Supply the Composite Video signal to the COMP Connectors of the SOURCE1 and SOURCE2 sections e Press the SOURCE1 Button of the A Bus and SOURCE2 Button of the B Bus Connect the Colour Video Monitor to the Preview Output Connector on the Rear Panel e Press the Wipe Button the Wipe Menu should be dis played on the Colour Video Monitor e Select by using the Up Down Left Right Buttons e Select by using the SELECT UNDO Button Connect the terminated Oscilloscope with 75Q to the COMP Connector of the REC OUT section Set the Mix Wipe Control to the B Bus side down side Confirm the Luminance signal level of the B bus Set the Mix Wipe Control to the A Bus side upper side e Adjust VR2 so that the Luminance signal level becomes same level 21 mV as B Bus Luminance signal level as shown in Fig 4 1 21 Fig 4 1 6 A B H Phase Adjustment Test Point 10 SYNC Main Board 11 SYNC Main Board Adjust VR5 H PHASE Main Board Supply the Composite Cross hatch Pattern signal to the COMP Connectors of the SOURCE1 e Press the Mix Wipe Button e Press the SOURCE1 Button of the A Bus and B Bus e Connect the Video Monitor to the Preview Output Connector on the Rear panel e Set the WIPE MIX Control to the Center positi
11. 63105066 _ OSDG signal input terminal 64 0608 1 OSDR signal input termin 65 OSD 1 OSD signal input terminal 66 ST Strobe signal input terminal 67 REG5 68 REG4 69 REG3 l Register signal input terminals 70 2 i jee 1 72 REGO i 73 Ground termina 74 DATA7 75 DATA6 T 7e DATAS T 77 4 DATA signal input terminals 78 DATAS 11 79 DATA2 FSO DATAT 1 81 82 WPTST I WPTST signal input terminal M 85 TMO i 86 PAL I PAL signal input terminal EL MD signal input terminals 89 SD6 I SD signal input terminai 90 CHOB O CHOBsignaloutputterminal 91 Power supply terminal 92 wP1 TDO l 1 94 WP3 TD2 95 TD signal input terminals 96 4 I 97 CH2 TDS l 98 LMRST__ O LMRST signal output terminal 99 CHOA O CHOAsignaloutputtermina Groundtemna 6 102 7 LL TD signal input terminals TD9 105 5077 l SDsignalinputtremina HOS KBR 1 Red signal input termina 107 Green signal input terminal 108 Blue signal input terminal 109 CHAR Character signal input terminal I pi2 ANG 113 fi 114 H15 AIN3 1 A signal input terminals 116
12. BACK COL Used to select the Back Colour 18 B bus Selection Buttons Same selection can be available as mentioned in the A bus Selection buttons 17 19 Effect Out Buttons EFFECT Used to supply the effect signal to the preview and Rec Out connectors MODE SETTING Section 25 Event Memory Button EVENT MEMORY Used to memorize the present status 26 Call Button CALL 20 Still Out Buttons STILL An instant still or frozen image can be obtained by pressing this button 21 Mix Wipe Control MIX WIPE EFFECT Mix and wipe can be performed by operating this con trol 22 Time Control TIME For adjusting the transition time of Auto Fade Function and Auto Take Function 23 Auto Fade Button AUTO FADE Automatic fade can be executed according to the time set by TIME Control 24 Auto Take Button AUTO TAKE Automatic wipe or mix can be executed according to the time set by TIME Control 22 Used to recall the memorized status 27 Number Button No 28 Up Button 29 Left Button 30 Down Button 31 Right Button 32 SELECT UNDO Button 33 Enter Button 1 Front Panel 34 Titler Connector TITLE Rear Panel 35 Source 1 Audio Input Jack SOURCE 1 AUDIO 36 Source 1 S video Input Connector Y C 37 S
13. SOURCE GND 43 ELECTRONIC VR 9 A R846 R853 4113 14 16 SOURCE 3 R 45 2 OUT2 ie a 1 1908 18 2124 1 46 eyed VBLK SOURCE 3L 47 INT CONTI OUT GATE ARRAY LOGIC 52 5557 CACHE D RAM SOURCE 3L GND 46 16503 5 1C504 2 2 1C505 2 2 Dao 36 Dao SOURCE 4R GND 8 ELECTRONIC VR 0015 Sate V ic101 SOURCE 4R 50 IN2 OUT2 SOURCE 4L 52 INi CONTI OUT 50 52 i 1 63 62 65 SOURCE 4L GND 51 5 BUFFER Ci CHARACTER 16 17 18 To GENERATOR CN5 3 3 e RECOUTL 54 REC OUT R 56 HECIOUT SC ler IC14 2 2 Q140 09 011 CF5 Q5 Q6 CONVERTER RECOUTSY 160 BUFFER FILTER BUFFER 145 REC OUT COMP 64 6 13 n PRV OUT COMP 66 BUFFER COUT 20 sour CCLK 68 DOB D7B 8 BIT BUFFER BUFFER FILTER BUFFER PIT 97 AS3 AS9 To BUFFER BUFFER FILTER 1 4 25 28 7 PERO REGS BID 014 016 ADO AD9 RS232C DR 71 STB1B ST2B 2YCLK VDSV CMD VELK VBLK O RAS HBLK HBLK 1C13 2 2 Q25 Q27 CF7 Q21 Q22 PAL NTSC CAS GPI BUFFER FILTER BUFFER AB DIS BIASt BIAS1 3 108 IC804 4 4 vosv BIRSZ Y3CLK 13 BIAS3 BIAS3 023 024 1 804 3 4 VD5V C 2 BIAS4 BIAS4 Q37 BUFFER FILTER BUFFER PEE 22 DRI Min BUFFER 030 032 E mE D A CONVERTER FADEL FADEI pod IC16 en 1 FADE2 FADE2 2 2 RS232C DRIVER 2 FADES FADES i SYNC FADES FADE4 DINI
14. the number which follows L Multiplier 1 5 Numerical Value Numerical Value a io N B n P c 4 J 22 w 2 e t Letters and O are not used Example 1 10x10 100 pF 33x10 3300 pF S3 gt 47x10 47000 pF 5 Precautions in replacing the chip component Make sure that the unit is turned OFF when replacing the chip Use tweezers to prevent any damage to the chip surface Do not re use the chips after removal Do not rub the electrode of chips Do not subject the chips to excessive stress Itis recommended that a pencil type soldering iron to be used nm 7 The solder whose diameter is less than 0 5 mm is recom mended 8 Do not heat the chip more than 3 seconds 9 Maintain temperature control under 260 C 500 F when soldering 33 5 1 Removal Transistor Diode Resistor and Capacitor 1 Add the solder to both ends of the chip three leads for chip transistor 2 While attaching the soldering iron to both ends of the chip three leads for chip transistor as shown below remove the chip by turning with tweezers Note Be careful not to damage other chips Tweezers M Chip Soldering iron 5 2 Removal IC 1 Add the solder wick and soldering iron to each lead of the IC and remove solder Solder wick Chip Soldering i
15. CALL SOURCE 4 KEY7 34 Main Board 2 2 BLOCK DIAGRAM OF MAIN BOARD 1 2 MAIN BOARD m is A 1 29 WRITE CONTROL 1028 LINE MEMORY 1 59 LINE MEMORY IC62 SYNC GENERATOR u TP10 ASYNC 303 75 82 28 12 102 10514 EM exsync FRMLMO 000 007 5 20 SELECTOR 2 4 202 1316 WE vpsv CN5 1 3 SEPARATOR IC25 A D CONVERTER 65 2 dicio TPIS 058 TOLMO TOLM7 TOLMO TOLM7 SUFFER ving DAO DA7 SY0 SY7 LMCLK RCLK 5 17 15 1C23 2 4 VR2 Y GAIN Linc auctus RRST R803 R809 TP16 Y GAIN 080 087 5 0 5 7 64 19 SWITCH WRST RB16 R823 25 9 0100 9139 ans TP2 WRITE A VCO R862 Lyn 1C33 D13 a 1 492122 lego VD5V SOURCE 2 16 L72 WRITE IC800 474950 CACHE D RAM A VCO gt GATE ARRAY LOGIC 525257 z FILTER OSG 2 SOURCE3 5 17 090 0015 sources sv fote 0117 Blas xoals SOURCE 3 COMP 24 ASUASS XASO a 98 SOURCESIBIAS 22 Q47 IC900 SWITCH cci SOURCE4S C 25 Q48 cco SOURCE4S Y 28 SOURCE 4 COMP 32 BUFFER SOURCE 4 5 30
16. Chip Select signal input terminal terminal rp SRAM clock mask signal input terminal 10 K signal input terminal 11 200 DQ signal input output terminal haee Greundtemina DQ signal input output terminals MD B DRAM clock mask signal input 13 IC30 and 46 on the Main Board are using the 4 MB Cache DRAM YWM5M4V416TP Power supply DQ signal input output terminal 1 Vs Ground terminal 19 pas DQ signal input output terminal 20 MccQ Power supply terminal DQ signal input output terminals eros 0 terminal 25 Nocommecon 5 espe fi ease pror 33 1 Address signal input terminals 34 Ad2 35 7 Power supply terminal E eee epos 1 40 405 Ti Address signal terminals Mie fi 43 4 1 AS signal input terminals 44 AS5 asje Gsignalinputterminal N1 No conneoion Gmundtema DQ signal input output terminals 5 1 Power supply terminal Power supply terminal DQ12 DQ signal input output terminal 56 Power supply terminal Pin 15 16 7 2 16 IC11 on the Main Board is using the 3 Terminal Pi Description Voltage Re
17. Ground terminal o e RECC 0 7 0 REC C signal output terminals 19 RECY2 o EE Te REC Y signal output terminals 22 RECYS 10 23 RECYe 24 RECY7 25 Vop Power supply terminal 28 SD2 SD signal input terminals 29 SD3 30 SD4 31 Vss mudtemma 8 RECC3 0 9 Voo terminal 10 4 HIR 19 REC C signal output terminals 13 RECC7 14 Vss Ground terminal 15 Y2C O Y2C signal output terminal 32 0 FERT Preview C signal output terminals 35 o 36 Vss Ground terminal FS7 PVWC4 0 FSSPVWCS fo nl 39 PVWCe 0 Preview C signal output terminals 40 PvWc7 0 O SPC signal output termina Ee sna turning 43 OS1I OS signal input terminal 44 SD5 1 SD signal input terminal 1 XH signal input terminal 46 Voo Power supply termina Fa7 PVWYO O 48 PVWY1 0 49 PVWY2 0 EE Preview Y signal output terminals 52 5 0 Fss Pvwve 0 Fs pvwvz 01 55 Vss Ground terminal 56 voo _ Powersupplytermina 157 ASY sional output minas 58 SYC OT SYC signal output terminas 59 HD O HD signal output termina 6o VD O VD signal output terminal O signal output terminals 762 0508 1 0508 signal input termina
18. with 75 Q Connect the probe of the Digital Voltmeter Oscilloscope or Frequency Counter at the desired Test Point in each adjustment step The adjustments should be done after 10 minute warm up 4 Adjustment Procedure e Refer to the Location of the Test Points and Adjusting Controls on page 30 1 Subcarrier Frequency Adjustment Test Point 21 FSC Main Board Adjust VR3 FSC Main Board e Disconnect all signals from the Input terminals of the WJ AVE55 e Connect the Frequency Counter to TP21 e Adjust VR3 to obtain 17 732676 MHz 5 Hz 2 Read VCO Adjustment Test Point TP6 READ VCO Main Board Adjust L929 READ VCO Main Board e Disconnect all signals from the Source Input Connectors of the WJ AVE55 e Connect the Digital Voltmeter to TP6 e Adjust L929 to obtain 2 8 0 1V 28 3 Write A VCO Adjustment Test Point TP2 WRITE A VCO Main Board Adjust L72 WRITE A VCO Main Board e Supply the Composite Video signal to the COMP Connector of the SOURCE1 section e Press the SOURCE 1 Button of the A Bus e Connect the Digital Voltmeter to TP2 e Adjust L72 to obtain 1 8 0 1V 4 Write B VCO Adjustment Test Point WRITE VCO Main Board Adjust L71 WRITE B VCO Main Board e Supply the Composite Video signal to the COMP Connector of the SOURCE 1 section Press the SOURCE 1 Button of the B Bus e Connect the Digital Voltmeter to TP4 e Adjust L71 to obtain 1 8 0 1V
19. 0 OUUU I I 121 L 80 D1 SHGB 122 79 D2 BIN7 123 78 D3 BIN6 124 77 D4 BINS 125 76 05 BIN4 126 75 06 127 74 07 BIN2 128 73 Vss BIN1 129 72 REGO BINO 130 71 REG1 Vss 131 70 REG2 DLC 132 69 REG3 DLY1 133 L 68 REG4 134 67 REGS BGP 135 66 ST XBSO 136 65 OSD TESTOUT 137 64 OSDR EXTO 138 63 OSDG SD9 139 L_ 62 OSDB 010 140 L_ 61 VP TN 141 TOP VIEW 60 VD XBSI 142 L_ 59 HD XLS 143 58 SYNC ESY 144 57 ASYNC EXT 145 56 VDD Voo 146 55 Vss HS 147 54 PVWY7 DLYO 148 53 PVWY6 XHO 149 LJ 52 PVWY5 SD11 150 51 PVWY4 RST 151 50 PVWYS3 RCLK 152 49 PVWY2 SD12 153 48 PVWY1 SD13 154 47 PVWYO Voo 155 LJ 46 VDD 156 45 XHI VPN 157 L 44 SD5 Vss 158 43 OS1 OSC2IN 159 42 Vss voo 160 41 SPC L UUL L LIL IE IE TS JETETE TE AE ETE TE IE ILI st 10 KO O t L0 KO 00 O v QI CO xt 00 To vo Y vo y v 4 v ov T CO 9 9358088285865659 85392rz99229 5 885888290992925995 gt 20 0 2 gt 5 gt 000000 0001011 gt gt gt Be a core tr Cr CC CC CE CC E E REE Pin Name O Description 1 Y3C signal output terminal 2 Vss
20. 01 XP4501 25 1218 XN1601 XP4601 2SB1219A XN4501 5H 4501 2563931 XN4601 5L XP5501 2501820 XN5501 XP5601 2501820 XN5601 XP6501 2501819 XN6501 XP6435 3 Chip Resistor ES 26 1226 6435 6534 The resistor value is indicated on the bottom surface of the OS 2581219 XNes34 x1 UMX1 vs UG 251532 R XP1501 UMZ1 chip resistor using three digit numbers YU 2363938 160 rrr E Tl Rank of DC Current Gain Example 2SD602 Q Transistor Number YQ 2SD601 Q 1BS gt 2SB814 S Example 330 33x10 330 Appearance and Symbols 561 56x10 5600 Transistor 123 12x10 12kQ Collector B Base E Emitter Note Zero ohm resistor jumper chip is colored red or green FET Drai 3 rain Gate 2 1 Source HEREFHNENEE es ee EE ad Eacept_2SK199 25 199 32 4 Chip Capacitor The capacitive value of replacement chip capacitors is indi cated on the bottom surface Original parts have no value indication If the capacitive value is less than 100 pF the value will be indicated by one or two digit number expressing the capacity directly in pF Example 0 5 0 5 pF 2 5 2 5 pF 75 0 75 pF 33 33 pF 1 1pF 82 82 pF If the capacitive value is 100 pF or greater the value will be indicated by an alpha numeric code The letter precedes the number and expresses a numerical value to be multiplied by
21. 01 on the Main Board are using the Amplifier with 75Q Driver IC YWNJM2267M 3 Input Video Switch IC YWNJM2245M Description of these IC is as follows Description of this IC is as follows TOP VIEW 1 Vini Input terminal for Amplifier 1 TOP VIEW 2 Ground terminal Truth Table Sag compensation terminal for Amplifier 1 4 Vout 1 0 Output terminal for Amplifier 1 5 Vout2 O Output terminal for Amplifier 2 Sag compensation terminal for Amplifier 2 Power supp termina svn 1 input terminal or Amplifier Don t care 2 30 801 and IC804 on the Main Board are using the Quad 2 Input AND Gate IC YWMC74F08M Description of these IC is as follows Vsag 2 1B 2 13 4B 1Y 3 12 4A GND 4 11 4Y 2B 5 10 3B 2Y 6 9 3A 2 28 504 and 505 on the Main Board are using the Dual Operational Amplifier IC NJM3404AM GND 7 8 3Y Description of these IC is as follows TOP VIEW Truth Table Veo INPUTS OUTPUT _ 7 OUT2 6 IN2 5 IN 2 TOP VIEW 22 2 31 29 and IC43 on the Main Board are using Write Control Gate Array Logic YWAJ0014 Description of this IC is as follows Ha QU ora 89 oe 200 zi 285858825822 8500009099 99 9 255md2i iko unoxoon uzi u zis90rl gt lt lt lt lt lt lt lt gt
22. 6 52 OSC2IN Oscillator input terminal Ground terminal 54 GND Ground terminal 55 Voo Power supply termina 56 PCO PCO signal output terminal 57 GND Ground terminal 58 GND Ground terminal Power supply terminal F60 CLMP O CLUMP signal output terminal Grumitemma 2 DO LMICLK signal output ternal 63 ARST O R Reset signal output terminal P64 WAST O W Reset signal output terminal 65 6 o 67 Tom to 68 TOLM3 0 signal output terminals 10 Fro Tos o o 24 TOLM signal output terminal Ground terminal Power supply terminal FRMLM signal input terminals Ground terminal Power supply terminal YAD signal output terminals HDG o Q ND Ground terminal Power supply terminal Ground terminal SHDG signal input terminal V signal input terminal H signal input terminal Ground terminal TN signal input terminal e ojo jojojo co co co 00 CO I 02 5 oo Ni o lt gt TSTOUT GND 2 1 Test signal output terminal Ground terminal Y Clock pulse input terminal Ground terminal PHASE signal input
23. 76431S YW78LOSUATE2 aa 2563377 25 2866 YWUPD42102G3 YWUPC24M12HF 2SK662 PQR CHIP COMPONENTS 2 Chip Diode T Chip Transistor The diode number is indicated on the top surface of the chip The transistor number is indicated on the top surface of the diode using two alphabet letters chip transistor using two alphabet letters or one numerical number and two alphabet letters Tl Rank of DC Current Gain Transistor Number Transistor Number Chip Transistor Letter 2 B 1 28A1035 28K321 2902 78 Ted Appearance and Symbols 250814 1 1 Anode Cathode 5 1 ojo 2 K o 25 2460 10 2581986 S 2562405 tr 2563077 2562404 12 2501030 V 2502295 2B 25 374 W 250602 2c 2sk116 BQ 258766 2504081 2 4 pr iio 28 28 28 Anode Cathode lt MA151K MA152K Cathode MA151A MA152A Cathode Small Chip Transistor Pair Transistor iene Cathode MA151WA MA152WA Cathode Cathode Letter Transistor No iter Transistor No Letter Transistor No MA153 Cathode Anode Common Anode Cathode MA143 Anode Cathode Common MA3062 Anode Cathode RD421D __ Cathode A 25 1218 XN15
24. D DR1 79 22 WE 21 REGCLK OUS OD MO ORI QW c st x MX 22222 lt lt lt lt lt lt lt lt 33535355997 eeeee ee ce D ODDA r SAAANA Pin JO Description Name 1 SCANO DATA3 SCAN1 DATA4 2 Key Scan signal output terminals 17 DATA5 eat Loup ida 5 18 DATA6 5 5 4 19 DATA7 6 Key Gate signal output terminal 20 LEDCLK LED Clock pulse output 7 Reset pulse input terminal terminal VDD Power supply terminal 21 REGCLK Register Clock pulse output terminal Write Enable signal output terminal Read Strobe pulse output terminal Bus Clock pulse output terminal ST signal output terminal X2 Crystal Oscillator connecting 1 12 DATAO 13 a terminals 24 14 DATA2 1 0 25 20 Pin Name VO Description 70 AVref3 Reference voltage terminal 3 71 Non Maskable Interrupt signal input terminal 72 VBLK V Blanking signal input terminal 73 HBLK H Blanking signal input terminal 74 GPI signal terminal 75 4 Description ADD17 006 O 40015 0 ADDi4 0 Address signal output terminals ADD13 0 ADD12 32 ADD11 5 ADD 0 Apps abos ea terminals 2 26 1C23 an
25. N 45 16 AVDD 46 15 DAG VRTA 47 14 48 O 13 DA4 LLL ESAE VRBSA signal output terminal VRBA signal inut termina Digtal power supply terminar Digital ground termina es terminal 095 Distal roundterinal an o fo mfo fo Digital code output terminals 14 0 5 o 15 0 6 To 0 Distal power supply terminal 118 Dvoo Low Voltage Digital power supply 19 Dvoo terminals 20 Digital power supply terminal 21 DBO o DBO 22 0 Digital code output terminals 15 25 DB4 O 28 DB7 NPOWDB VRBB VRBSB O W ujv aj BRIO 2 18 25 and IC39 on the Main Board are using the C MOS 8 Bit 2 Channel High Speed A D Converter MN65752H Description Digital code output terminals Digital output enable signal input terminal Clock pulse input terminal Digital ground terminal Power down mode signal input terminal Digital ground terminal Digital power supply terminal Bottom side reference voltage input terminal Bottom side reference voltage output terminal Top side reference voltage output terminal 44 55 45 VINA VRTA 48 VRTSA 37 VRTSB O 38 VRTB R o co A NIO Top side reference voltage input terminal Anal
26. ORDER NO AVS9602118C8 Service Manual Digital AV Mixer WJ AVE55 SPECIFICATIONS Source Input x4 SOURCE 1 4 Video Input 1 0 Vp p 75Q PAL composite signal pin jack Y C input Y signal 1 0 V p p 75O C signal 0 3 V p p 75O Mini Din 4 pin connector Audio Input 6 dBs 20 kQ pin jack L R Character Input x1 TITLE 10 pin connector for optional Character Generator WJ TTL7 Recording Output REC Video Output 1 0 Vp p 75Q PAL Composite signal pin jacks Y C Output Y signal 1 0 750 C signal 0 3 V p p 75O Mini Din 4 pin connector Audio Output 6 dBV 1 pin jacks L R Preview Output Video Output 1 0 Vp p 75Q PAL Composite signal pin jacks Back Colour White Yellow Cyan Green Magenta Red Blue Black and Useable Wipe Patterns 157 patterns Video Gain Unity S N typical Video 50 dB composite 50 dB Y C Audio 60 dB Power Source 220 240V AC 50 Hz Power Consumption Approx 19W Ambient Operating Temperature 0 C 40 C 32 F 104 F Ambient Operating Humidity Less than 90 Dimensions 420 W x 300 H x 88 D mm Weight 2 5 kg Weight and dimensions indicated above are approximate Specifications are subject to change without notice 1996 Matsushita Communication Industrial Co Ltd Panasonic All rights reserved Unauthorized copying and distribution is a violation of law WARNING This service information is designed for e
27. RST cco 198 63 RRST 1994 62 RST 200 61 GND 201 60 2021 59 EXSYNC 203 58 GND GND 204 57 GND 205 56 PCO GND 206 55 VDD 207 54 GND GND 28 53 GND EN ERS RASS SSNS ees TST SSS SSeS OzaOonoaonnnooxoua oooxaroosowue cooogooraoxoortacor uaosooraz 3 8885 0828802822888 33 SESS SSE SESS CEES ES ES See ees EERE 8 lt 88888888 88888888 8 OOOOOOOO Ol Descipion Description Ground terminal 11 5 6 12865 131854 14 SC8 i Serial clock pulse input terminals 5502 M Power supply terminal ee tH 4FSC signal output terminal Ground terminal 8 GND Ground terminal 3 GND Ground terminal Serial clock pulse input terminal 20 YADCLK Notused 23 in Ground terminal 30 GND Ground termina 1p 32 Power Supply termianl ela 34 COMPC1 35 2 l 36 signal input terminals 37 4 1 38 l 39 6 1 40 COMPC7 41 GND Ground terminal 42 GND Ground terminal 43 COMPYO 1 4 covevi 1 45 2 46 COMPY3 1 signal input terminals 47 TT 49 COMPY
28. S video Y C CIRCUIT DESCRIPTION 2 Main Board IC Description 2 1 on the Main Board is using the Octal 3 State Bus Buffers IC MC74HC544 AF 1 Power Board Description of this IC is as follows 1 1 2 on the Power Board is using the Variable Shunt m Regulator IC YWTA76431S Description of this IC is as follows 1A 2A 3A 3 Cathode 4A 2 Anode TOP VIEW 1 Reference 5A 6A Reference Op E catione 7A 2 Anode GND INPUTS OUTPUT 1 2 Y 1 2 IC1 on the Power Board is using the 3 terminal Voltage Regulator IC YWUPC24M12HF Description of this IC is as follows Don t care Z High Impedance 2 2 6 and on the Main Board using the Octal 3 State D FFs IC MC74HC374AF Description of this IC is as follows Vcc 1Q 8Q eee 1D 8D 2D 7D 20 70 Input TOP VIEW 3Q 6Q 8 3D 6D 5 5 9 4Q 5Q 2 GND EG 8 S E Over heat Protector INPUTS FUNCTION EG ES 30 55 EG Don t care Z High Impedance 2 3 62 on the Main Board is using the 2 0 Low Pass Filter HCMOS Gate Array Logic IC YWAJ0016 Description of this IC is as follows Ro AAAAAA lt c SnO NASPAT 105900309
29. Section TRANSITION SELECT WIPE MIX LUMKEY CHROMAKEY SET 3 Wipe Mix Selection Button WIPE MIX Used to select either the Wipe or Mix Effect Lighting shows the Wipe selection Blinking shows the Mix selection 4 Luminance Key Button Used to replace certain luminance of one picture with a second picture 5 Chroma Key Button Used to replace certain colour of one picture with a second picture 6 Set Button Used to select the position for the chroma function ON SCREEN DISPLAY SETTING Section ON SCREEN DISPLAY SETTING WIPE EFFECT L FADE AUDIO M 7 Wipe Button WIPE Used to display the Wipe menu on the preview monitor 10 Fade Button FADE Used to display the Fade Setting menu on the preview monitor 8 Effect Button EFFECT Used to display the Effect Setting menu on the preview 11 Audio Button AUDIO monitor Used to display the Audio Setting menu on the preview monitor 9 Colour Button COL Used to select the colour for the back screen or wipe edge POSITION COL CORRECT Section vox POSITIONCOLCORRECT _ gt esee os ar 1 B 1 45 CIS SERRE G B
30. ching signal input terminal for Chrominance signal L Narrow Band H Wide Band Description of this IC is as follows Control Voltage Generator Mode Switch 12 2 11 48 on the Main Board is using the Single 2 Input NAND Gate IC YWSC7SOOF Description of this IC is as follows IN1 1 5 Vcc Truth Table IN2 2 GND 3 4 OUT TOP VIEW 2 12 18 IC19 IC33 IC44 IC53 IC56 IC100 and IC101 on the Main Board are using the Single Inverter IC YWSC7SU04F Description of this IC is as follows N C 1 5 Truth Table n GND 3 4 Out TOP VIEW 2 13 on the Main Board is using the Voltage Detector IC YWM51953AFP Description of this IC is as follows N C 1 2 C Tato N C 3 gt 6 Output 5 TOP VIEW VCC 4 25V 0 65V output indefined td 0 34 x pF usec 2 14 Description of this IC is as follows Vcc Vss DQCI AD9 DQCU AD8 CC1 AD7 CCO N C WE N C CS 59 CMD 58 CMS AS7 K AS6 DQO DQ15 Vss Vss 001 0014 DQ2 DQ13 VccQ VccQ TOP VIEW 0912 Vss Vcc DQ4 DQ11 VccQ VccQ DQ5 DQ10 DQ6 DQ9 Vss Vss DQ7 008 N C N C ASO G AS1 AS5 AS2 AS4 RAS AS3 CAS AD6 AD5 AD4 AD3 N C Vss DTD ADO AD1 AD2 Vcc 1 Mec Powersupply DQC signal input terminals 4 fi 5 CCO terminals Write Enable signal input terminal
31. d IC37 on the Main Board are using Quad DATA Analog Switches Multiplexers Demultiplexers IC 43 74 4066 ee eer Description of this IC is as follows erminal 45 Vss Ground terminal UO 1 Vcc TEST TEST signal input terminal 1 Control 1 47 SVSELB SVSELB signal output terminal 48 SVSELA O SVSELA signal output terminal on Control 4 OSDRST OSDRST signal output terminal VO 2 VO 4 509 ST1 signal output terminal Control 2 4 PAL NTSC PAL NTSC signal input terminal Control 3 52 OSDDAT o Port signal rminals GND T 53 SDCS Pu al input output terminals GNE Truth Table 55 Power supply terminal 56 DAT o FADEDAT signal output terminal 57 FADECLK FADECLK signal output terminal Control E EE FADELD signal output terminal OFF 59 245 24SW input terminal eo xPOS 1 XPOSI signal input terminal YPOSI m YPOSI signal input terminal TAKE TAKE signal inout terminal SPEED SPEED signal inout terminal e4 AVbo Analog Power supply terminal ss Aver Reference voltage termina T Aas aao Ground terminal cr Noo O Analog 0 signal output terminal _ T signal output terminal 69 AVref2 Reference voltage terminal 2 21 2 27 1 on the Main Board is using the 6 dB Video 2 29 1 900 9
32. erter circuit gt gt gt Analog Data output terminals lt gt gt gt gt gt g 90 Upper reference voltage supply terminal for D A Converter circuit Power supply terminal terminal Analog Data output terminals MSB Data output terminal from 12 Bit Shift Register Load signal input terminal Data of 12 Bit Shift Register should be loaded to Decoder and D A Output Registers when LD H refU L gt gt 9 Shift Clock pulse input terminal Serial Data from DI terminal should be input to Decoder and 12 Bit Shift Register at raising edge of this signal DI 12 Bit Serial Data input terminal 18 aoi alo g Data output terminals 20 GND Ground terminal A N M aj ajojn lt 2 25 4 on the Main Board is using the 16 Bit Microprocessor IC YW78P4026GCA Description of this IC is as follows 22958 65 zc sOOOn nOnRe 8885885055599 9939 DESEE S E DE E YPOSI 61 40 DATAS3 TAKE 62 39 DATA4 SPEED 63 38 DATA5 AVDD 64 37 DATA6 65 36 7 AVss 66 35 ADD8 ANOO 67 34 ADD9 ANO1 68 33 ADD10 AVref2 69 32 ADD11 AVref3 70 TOP VIEW 31 ADD12 NMI 71 30 ADD13 VBLK 72 29 ADD14 HBLK 73 28 ADD15 GPI 74 27 ADD16 BIAS4 75 26 ADD17 BIAS3 76 25 ST2 BIAS2 77 24 BUSCLK BIAS1 78 23 R
33. fy the original design without permission of manufacture Standard Accessory Optional Accessory Power Cord 1 Character Generator WJ TTL7 CONTENTS MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS 2 4 1 1 SYSTEM CONNECTION etr re Oed t ee EH EE e dr aree eterne s 5 CIRCUIT DESCRIPTION IG DESCRIPTION Em 6 ADJUSTMENT PROCEDURE LOCATION OF TEST POINTS AND ADJUSTING CONTROLS APPEARANCE OF IC TRANSISTOR AND DIODE CHIP COMPONENTS BLOCK DIAGRAM ROAR Digest cd ae va wna acl cys ers nia Sed seein eA eae reden 34 EEUU 35 2 2 EE 36 SCHEMATIC DIAGRAM MAIN BOARD 2 2 EEUU 38 mm 40 SWITGEBOMRRDD 2 cte icc P tetuer cech Lett 41 POWER E 41 CONDUCTOR VIEW MAIN BOAR Di tess 37 SWITCH 41 POWER BOARD EXPLODED VIEW REPLACEMENT PARTS LIST MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS B Side View 1 Power Switch POWER ON OFF POWER Section 2 Power Indicator TRANSITION SELECT
34. gulator IC YW78LOBUATE2 57 003 i i i Description of this IC is as follows 14 DQ signal input output terminals p Grundtemia VO 00 signal input output terminal ei AS6 62 AS7 AS signal input terminals 63 AS8 64 59 Output 1 GND 2 Input 3 65 66 Nocomedon ezla 68 AD8 Address signal input terminals 69 AD8 70 55 Ground terminal Over current Protector Reference Voltage 2 15 1C31 IC51 on the Main Board are using the Generator Voltage Regulator Driver IC YWM5237ML Description of this IC is as follows 5 o o 2 o o w o gt 1 2 GND 2 17 513 the Main Board using the Quad 3 State Bus Transceivers IC YW74ABT244DB 3 VADJ Description of this IC is as follows G1 20 Vcc 1 1 19 G2 2 4 18 1A2 17 2A4 2Y3 16 1Y2 TOP VIEW START UP OVER TEMPERATURE PROTECTION OVER CURRENT PROTECTION GND 2 High Impedance 14 Description of this IC is as follows 36 VRBSB 35 VRBB 32 NPOWDB 31 DVss 30 CLK 34 DVDD 33 DVss 29 NOE 28 DB7 27 086 26 DB5 25 DB4 VRTSB 37 24 DB3 VRTB 38 23 DB22 AVDD 39 22 081 VINB 40 21 DBO AVss 41 20 DVDD 42 19 DVDDL TOP VIEW 18 DVDDL AVss 44 17 DVDD VIN
35. ifier IC with 75Q Driver YNNJM2268V Description of this IC is as follows 8 VIN2 _ 7 Vcc TOP VIEW 6 N C 5 Vour2 Description 10 2 8 511 and 1 512 on the Main Board are using the Video Sync Separator IC YWLM1881M Description of this IC is as follows Comp Su Vcc i Odd Even Video In 2 Field Index abra RsET Burst Back 14 Porch Clamp Vertical Sync RSET 6 GND 4 2 9 26 and 40 on the Main Board are using the Comb BPF Filter IC YWMC141625BFU Description of this IC is as follows N LO SELO CO yo Description 1 Ground terminal for Digital D3 137 24D TE1 02 23 1 0 22 1 MODE4 5V supply terminal for Digital Do 40 21 MODEO Circuit 41 201 ADCLK Connection DAND ve GND 4 Luminance signal output CLK 45 16 CLOUT terminal Comb BPF 46 15 CLC Reference Voltage input terminal for D A Converter circuit Ground terminal for D A Converter Circuit 5V supply terminal for D A Converter Circuit O Chroma signal output terminal Connection Current Control terminal for A D and D A Coverter Circuits Ground terminal for A D Converter Circuit 5V supply terminal for A D Converter Circuit Top Reference Voltage input terminal for A D Converter Circu
36. it Bottom Reference Voltage input terminal for A D Converter Circuit Time Constant setting terminal O Clamp Voltage output terminal Voltage input terminal for A D Converter Circuit 3 3Vp p max Non Connection Ground terminal for Digital Circuit Clock pulse input terminal for A D Converter Circuit Mode set signal input terminals Test Mode set signal input terminals Data Y input output terminals Bypass 47 147 RBT BW 248 RTP IBIAS 10 ADGND ADVcc 12 z o E cu o lt Pp LOGIC CONTROL 20 ADCLK 21 MODEO 22 MODE1 23 TEO 24 TE1 25 C7 6 C6 g I E a H 2 A C F PROCESSING 11 Name wo Description 8 04 VO Chrominance Data input output 37 D3 terminals 38 D2 yo D1 Te 41 Colour TV Sytem Select signal input terminals NTO T 43 DGND Ground terminal for Digital Circuit CLK Clock Pulse input terminal 46 COMB BPF Filter Select signal input terminal L Comb Filter H Band Pass Filter 47 BYPASS Bypass signal input terminal 2 10 500 503 on the Main Board are using the 2 Channel Electronic Volume Balance IC YWM51132 FP DO O 44 DVcc 5V supply terminal for Digital Circuit 48 BW Band swit
37. lt gt LO xt KO LO t XO LO QN ce SESE Sane br Tor E ao GND 157 C 104 GND 0015 158 7 1103 0014 159 102 GND DQ13 160 7 1101 TSTOUT DQ12 161 F100 TN 162 7 99 GND 1631 98 H Dag 164 1 97 v 165 96 SHDG vob 1661 95 GND ASS 167 94 voo AS4 168 93 GND AS3 169 92 YAD7 vob 170 1 91 YAD6 AD6 171 90 YAD5 AD5 172 0 89 YAD4 173 88 YAD3 AD3 174 87 YAD2 AD2 1751 86 YADI 1 176 85 YADO 177 84 voo vob 1781 83 GND GND 179 82 FRMLMO DTD 180 1 81 CAS 181 80 FRMLM2 RAS 1821 79 FRMLM3 AS2 183 VIEW 78 FRMLM4 AS1 184 7 77 5 Aso 185 76 FRMLM6 DQ7 186 75 FRMLM7 187 74 005 188 7 GND DO4 189 72 190 71 TOLM6 DQ2 191 70 TOLMS 192 69 TOLM4 193 68 TOLM3 GND 1941 67 TOLM2 195 66 TOLM1 CMD 196 65 TOLMO 197 L 64 W
38. o 25 173ADR4 0 174 ADR3 o 175 ADR2 o ADR signal output terminal 176 81 Tol 177 To 1784 voo Power Supply terminal Tm terminal 180 DTD DTD signal output terminal output t rmiinal gt output terminal 182 RAS Row Address Strobe signal a o 184 0 AS signal output terminals 185 aso O 187 006 uo 1 Haat boo Es Seo Ground terminal 135 VDD Power Supply terminal 196 CMD O CMD signal output terminal Write enable signal output terminal cee Te CC signal output terminals fo RST Reset signal input terminal 201 DC ARE DC ARE signal input terminal ag External signal input terminal 208 EXSYNC External sync signal input terminal GND Ground terminal 209 OSGI 206 Groundtermma vop Power Supply terminal 208 GND Ground termina DQ signal input output terminals 2 32 800 on the Main Board are using Gate Array Logic IC YNUPD6511GC Description of this IC is as follows DQ3 log 602 DQ signal input terminals ao pai n Dos cku CKU signat input termina s 20 7 1 CKUO signal input termina ce ed 33 GND Ground terminal 2005
39. og ground terminals Analog signal input terminal Analog Power supply terminal Top side reference voltage input terminal Top side reference voltage output terminal 2 19 52 55 on the Main Board are using the 8 Bit 2 Channel D A Converter YWMB40968PF Description of this IC is as follows A5 A4 A6 A3 A7 A2 lt z A8 zl CLKA VccD lt B1 VCCA allaii x D 2 2 5 5 a TOP VIEW B3 A GND lt 4 BOUT 5 6 VRIN B7 VROUT B8 COMP CLKB D GND LL LL 2 m ajas fi EEATT Ach Digital Data input terminals 8 Bit 4 A8 LSB 5 CLKA Ach Clock pulse input terminal 7 REFERENCE VOLTAGE L COIN Oo KB Bch Clock pulse input terminal N Ground terminal for Digital circuit M Phase Compensation terminal Olo 7 Reference Voltage output terminal Reference Voltage input terminal i i 1 MSB Ach Digital Data input terminals 8 Bit 7 E 15 24 26 27 28 16 2 20 6 on the Main Board is using the RS 232C Driver 2 21 20 21 34 and IC35 on the Main Board are IC YWUPD4721GS using the Analog Multiplexer Demultiplexer IC Description of this IC is as follows MC74HC4052F Description of this IC is as follows VDD 1 20 C4 YBO 2 19 GND YB2 3 18 4 ZB YB3 C1
40. on Adjust VR5 so that the Cross hatch Pattern signal of A Bus and B Bus becomes coincides on the Video Monitor as shown in Fig 4 2 No Good Good Fig 4 2 29 LOCATION OF TEST POINTS AND ADJUSTING CONTROLS MAIN BOARD Component Side TP10 A SYNC 2 WRITE VCO 16 GAIN 172 WRITE VCO VR2 GAIN VR5 H PHASE 11 PHASE 18 TP4 WRITE VCO L71 WRITE B VCO Rear Front 1929 READ VCO TP6 READ VCO TP9 HBLK TP21 FSC I i VBLK VR3 FSC 30 YWAJ0014 MC74HC374AF YWUPD4721GS YWM62352GP MC74HC541F YW74ABT244DB YWAJ0016 YWM51132FP MC74HC4052F YWMC74HC175F APPEARANCE OF IC TRANSISTOR AND YW78P4026GCA MC74HC4066F YWMC74HCO08F YWM5M4V416 YWNJM2267M YWLM1881M YWNJM2268V NJM3404AM YWM51953AFP 15 153 Y 4 gt YWERA1502 YWERA84009 YWERA34 10 YWERA9102 K 1 k YWKV1471 MA141KTX 741 YWRB421D YWRD18JT1B2 4 3f YWUPD6511GC YWM141625BFU DIODE YWMB40968PF MN65752H YWSC7SU04F YWM5237ML YWSC7S00F YWSC7S08F 4 5 3 2 1 3 2 1 S1WBA60 2SA1576 25 4081 2501979 2SB1219QRST 25 4713 2SD601 QR 25 24 YW78LOSUATE1 YWTA
41. ource 1 Composite Video Signal Input Jack 38 Source 2 Audio Input Jack SOURCE 2 AUDIO 39 Source 2 S video Input Connector Y C 40 Source 2 Composite Video Signal Input Jack 41 Source 3 Audio Input Jack SOURCE 3 AUDIO 42 Source 3 S video Input Connector Y C 43 Source 3 Composite Video Signal Input Jack 44 Source 4 Audio Input Jack SOURCE 4 AUDIO 45 Source 4 S video Input Connector Y C 46 Source 4 Composite Video Signal Input Jack 47 Recording Out Audio Output Jack REC OUT AUDIO 48 Recording Out S video Output Connector REC OUT Y C 49 Recording Out Composite Video Signal Output Jack 50 GPI Connector GPI Refer to the qualified service personnel or system Installers for this connection 51 Preview Output Connector Connect to video input connector of the preview moni tor 52 Serial Connector SERIAL Refer to the qualified service personnel or system Installers for this connection 53 Power Socket AC IN Connect the Power Cord provided to this socket SYSTEM CONNECTION i Output Monitor T DE d o A A Preview Monitor Types of Input and Output Jacks D Composite RCA style video and audio 2
42. remove nine screws that secure the Upper Cover and remove the Upper Cover Remove nine screws Fig 2 1 e Referring to Fig 2 2 remove five screws that secure the Shield Cover and remove the Shield Cover Disconnect the Flat Cable from CN3 on the Power Board and CNS on the Main Board Remove five screws that secure the Main Board and remove the Main Board 27 Remove five screws Disconnect the flat cable Remove five screws Fig 2 2 e Referring to Fig 2 3 connect the Extension Board between on the Power Board and on the Main Board Connect the Extension Board Fig 2 3 3 Connection and Setting Up for Adjustment e The Fig 3 1 shows the connection diagram for the adjustment procedure Underscanned Waveform Vector Colour Video Monitor scope Monitor REC OUT WJ AVE55 SOURCE1 2 COMP Video Signal Generator Fig 3 1 Lch Rch Audio Generator Connect the Underscanned Colour Video Monitor through Waveform Monitor to the COMP OUT Connector on the REC OUT Section of the Rear Panel e Terminate the input terminal of the Underscanned Colour Video Monitor
43. ron 2 Add the soldering iron to each lead of the IC and left each lead of the IC using thinner pin Thinner Pin Soldering iron Chip J 3 Remove the IC turning with pliers 5 3 Mounting 1 Place the solder thinly on the chip mounting foil 2 Solder the chip temporarily while holding the chip with the tweezers Chip Tweezers Solder N Soldering iron 3 Solder both ends of the chip three leads for chip transis tor M v Chip N Soldering iron BLOCK DIAGRAM OF SWITCH BOARD POSITIONER BOARD SWITCH BOARD 7 SIDE VR1 TAKE ES LOWER lt lt S UPPER 7 UP YPOSI YPOSI I orae SCANO SCANO uli SCAN1 SCAN1 SCAN2 SCAN2 fiaj scana SCAN3 B SCANS FJ SCANA SCANS swi sw2 sw3 sw4 SW5 SW6 SW7 SW8 KEYO L L L L L r1 L L N KEY1 KEY1 f O 9 KEY2 gt gt 19 KEY2 WIPEMIX LUM KEY CHROMA NO SET FADE AUDIO SELECT KEYS Ra KEY gt gt pi Keva_ lt KEYS KEY6 WIPE MIX LUM KEY CHROMA KEY7 KEY SOURCE 4 LEDO LED D11 D12 D13 D15 LED2 5 N N N LED3 LED4 A A A POSITION SOURCE 1 SOURCE 2 SOURCE 3 D16 D17 D18 S S S A A SCENE DVE FREEZE D21 D22 D25 S B B B COLOR SOURCE 1 SOURCE 2 SOURCE 3 CORRECT 027 028 030 SOURCE 4 NI NI B B EVENT EVENT B DVE FREEZE MEMORY
44. terminal PHASE signal input terminal C Clock pulse terminal Y3 Clock pulse terminal 117 Ground terminal ST signal input terminal Ground terminal Register signal input terminals 118 D7 Data input terminals 92203 123 paji rn 125 00 2 1 126 SET OFF SET signal input terminal 127 COUNT SEL COUNT signal input terminal 128 PAL NTSC signal input terminal 122 AB signal input termina i30PPGI4 PGI signal input termina 32 PHASE2 PHASE signal input terminal H33 RHSO 1 H34 RHS 1 M35 lRHS2 1 RHS signal input terminal 136 137 RHS4 i 1 572 1 141 i TEST signal input terminal p 144 _ Power supply terminal 45 signal input terminal 146 Ground termina pros o 148 08 Address signal output terminal fol 150 5 0 151 59 O As o 15660 Gmundtemma Hsz oND Groundiemina VO VO DQ signal input output terminal 1640069 66 Voo Power supply terminal AS signal output terminals AS signal output terminals 169 AS3 FB lop e neni eme E signal output terminals uos
45. xperienced repair technicians only and is not designed for use by the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death This symbol warns the user that uninsulated voltage within the unit may have sufficient magnitude to cause electric RISK OF ELECTRIC SHOCK shock Therefore it is dangerous to make kind of contact with any inside part of this unit CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER This symbol alerts the user that impotant literature concerning SERVICEABLE PARTS INSIDE the operation and maintenance of this has been included REFER SERVICING TO QUALIFIED SERVICE Therefore it should be read carefully in order to avoid PERSONNEL any problems IMPORTANT SAFETY NOTICE There are special components used in this equipment which are important for safety These parts are indicated by the A mark on the schematic diagram and the replacement parts list It is essential that these critical parts should be replaced with manufacturer s specified parts to prevent shock fire or other hazards Do not modi
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