Sony KV-VF21M40 manuals
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Sony KV-VF21M40 Service Manual
116 pages 10.53 Mb
SERVICE MANUALCHASSIS COLOR VIDEO TV TRINITRONPlease file according to model size. .... KV-VF21M77 KV-VF21M40 BC-4AMODEL COMMANDER DEST. CHASSIS NO. MODEL COMMANDER DEST. CHASSIS NO. RM-956 E SCC-P10A-A RM-956 ME SCC-P11A-A RM-956 HK SCC-P09B-A RM-955 HK SCC-P09A-A 2 SPECIFICATIONS3 Receivable channels and channel display1. OUTLINE 2. DIAGNOSTIC TEST INDICATORS 5 SELF DIAGNOSTIC FUNCTION6 4. SELF-DIAGNOSTIC SCREEN DISPLAY5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY 3. DISPLAY OF STANDBY LIGHT FLASH COUNT 7 6. SELF-DIAGNOSTIC CIRCUIT[+Bovercurrent] standard pulse which detect cathode current, or which become low almost. become LOW and OFF RY601. [+Bovervoltage] [Verticaldeflectionstopped] Mute the picture at ! pin of IC301 that performed by Y/C/J. [Whitebalance] SECTION 1 GENERAL 8 Step 1: PreparationCheck the supplied accessories Insert the batteries into the remote control Step 2: Installing the video TV 9 Step 3: Connecting the antenna7 Connecting an outdoor antennaTo connect a VHF antenna or a combination VHF/UHF antenna75-ohm coaxial cable (round) To connect both VHF and UHF antennas Step 4: Selecting the language8 Step 4: Selecting the language (continued) 9LANGUAGE/ , then press ENTER. The selected item turns Press M or m to select , then press ENTER. The menu language changes to Chinese. 10 Step 5: Setting the clockYou need to set the clock to use timer recording, Quick-Timer recording and on-timer functions. CLOCK SET , then press Press ENTER. The day section turns red. Press M or m to set the day, then press ,. The month section turnsTIMER ON TIMER SET 3 31.12.1999 FRI 10:003 10 Step 5: Setting the clock (continued) 11 If you have made a mistake while setting the clockPress < to go back to the item to be changed and set the correct digits using M or m, then press ,.Note If power is interrupted or you disconnect the AC power cord, you have to re-set the clock. 11 Step 6: Setting the channels13 Watching the TVSelecting the picture mode Displaying on-screen information 16 14 Playing a tape17Press PLAY N. Playback starts. On-screen information is displayed for a few seconds. Protecting your cassette against accidental erasure 18 Playing a tape (continued) 19 Displaying on-screen informationResetting the tape counter 15 Recording TV programsRecording TV programs16 20To stop recording 21 To pause recording Recording with the TV off Selecting the tape speed 22 17 Recording using QUICK-TIMER23 Before you begin 18 2425 Changing or canceling the Quick Timer settingsPress QUICK TIMER. The QUICK TIMER display appears. 26 19 Recording TV programs using the timer27 Setting the timer If you have made a mistake during timer setting Daily/weekly recording Using the video TV before timer recording starts 28 Checking/adding/ changing/canceling the timer settings29 When the timer settings overlap Additional Operations 20 Adjusting the TV24 Tape options27 Switching offSLEEP 28 Switching on ON TIMERTo cancel the on-timer function 46 29 Searching using the index functionTo connect a VCR 47 To stop searching Connecting optional equipmentWatching and recording the picture input from optional equipmentTo connect a video camera 30 48Connecting optional equipment (continued) To watch the video input signal 49H Press t so that t1 or t2 appears on the screen. To connect a video game To display the video game screenPress GAME when the video TV is in standby mode. To switch to a TV programPress the number button on the remote control, PROGR +/ or t on the video TV or remote control. To switch to the VCRPress the PLAY N button on the video TV or remote control when a cassette is in the video TV. Additional Information 31 Self-diagnosis function Check that the 1 indicator flashes red once or more in intervals of 3 seconds. Count the number of times the indicator flashes. Press ?/1 to turn off your video TV. TroubleshootingAdditional Information 52 53 Symptoms caused by contaminated video heads Normal picture Rough picture Unclear picture No picture (or black & white screen appears) initial contamination terminal 32 t 33 Identifying parts and controlsRefer to the pages indicated in parentheses ( ) for details. Front panel14 2 3 5 6 34 56Identifying parts and controls (continued) 57 Remote control 1-2. KV-VF21M77 35 Step 1: PreparationCheck the supplied accessories B AInsert the batteries into the remote control Step 2: Installing the video TV 36 Step 3: Connecting the antenna7 Connecting an outdoor antennaTo connect a VHF antenna or a combination VHF/UHF antenna75-ohm coaxial cable (round) To connect both VHF and UHF antennas Step 4: Selecting the language8 Step 4: Selecting the language (continued) 9LANGUAGE/ , then press ENTER. The selected item turns Press M or m to select , then press ENTER. The menu language changes to Chinese. 37 Step 5: Setting the clockYou need to set the clock to use timer recording, Quick-Timer recording and on-timer functions. CLOCK SET , then press Press ENTER. The day section turns red. Press M or m to set the day, then press ,. The month section turnsTIMER ON TIMER SET 3 31.12.1999 FRI 10:003 10 Step 5: Setting the clock (continued) 11 If you have made a mistake while setting the clockPress < to go back to the item to be changed and set the correct digits using M or m, then press ,.Note If power is interrupted or you disconnect the AC power cord, you have to re-set the clock. 38 Step 6: Setting the channels40 Watching the TVSelecting the picture mode Displaying on-screen information 16 41 Playing a tape17Press PLAY N. Playback starts. On-screen information is displayed for a few seconds. Protecting your cassette against accidental erasure 18 Playing a tape (continued) 19 Displaying on-screen informationResetting the tape counter 42 Recording TV programsRecording TV programs43 20To stop recording 21 To pause recording Recording with the TV off Selecting the tape speed 22 44 Recording using QUICK-TIMER23 Before you begin 45 2425 Changing or canceling the Quick Timer settingsPress QUICK TIMER. The QUICK TIMER display appears. 26 46 Recording TV programs using the G-CODE 27 Setting up the G-CODE system 47 28Recording TV programs using the G-CODE system 29 If you make a mistake entering the G-CODE number To use the video TV before timer recording starts To check/add/change/cancel the timer settings 30 48 Recording TV programs using the timer31 Setting the timer If you have made a mistake during timer setting Daily/weekly recording Using the video TV before timer recording starts 32 Checking/adding/ changing/canceling the timer or G-CODE settings33 When the timer settings overlap Additional Operations 49 Adjusting the TV53 Tape options56 Selecting a bilingual program57 Switching offSLEEP Switching on ON TIMER50 Switching on automatically - ON TIMER (continued) 51 To cancel the on-timer function 58 Searching using the index function59 Connecting optional equipment53 To connect a VCR Watching and recording the picture input from optional equipmentTo connect a video camera To watch the video input signalPress t so that t1 or t2 appears on the screen. 54 Connecting optional equipment (continued) To connect a video game 55 To display the video game screen To switch to a TV program To switch to the VCR Additional Information 60 Self-diagnosis function61 Troubleshooting58 Symptoms caused by contaminated video heads 59 Normal picture Rough picture Unclear picture No picture (or black & white screen appears) initial contamination terminal 62 t63 Identifying parts and controls TV BLOCK1 A A(1/2) CV(TUNER, Y/C/J, H/V DEFLECTION) 79 A(2/2)FD 83 84 85 86 A BOARD 6-2. CIRCUIT BOARDS LOCATION *CV EMA10 A F 6-3. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Terminal name of semiconductors in silk screen printed circuit ( ) 80 AA BOARD IC TRANSISTOR * *1234567 A B C D 22NTSC NTSC PAL/SECAM NTSC PAL/SECAM 15 17 10 61234567 B-SS8848<HK.>-A.. HV J701(G4) CN704 CN503 CN701 DYSTBY5V PLL SW SW 9V OSD R OSD G OSD B OVP YM/YS DGC SW SDA 1 SCL 1 B INT NS V PLS H PLS CRT PWR VCR PWR VMSW TV C GND(A) TV Y TV VTU AL(TV) TU V(TV) RE LINE L AC NUET GND(SP) VCC(SP) GND(A) D 5V GND(M) SW 5V IK H1+15V REF OUT IN VCC -15V * H-CENT 6V-REG DRIVE TV-DRIVE DGC-DRIVE D2L20U-F MOTOR-RECT D2L20U-F AUDIO-RECT REG-SW SW BIAS V-PROTECT -13V-RECT +13V-RECT MTZJ-T-77-3.9B MTZJ-T-77-39 D1NL20U D1N20R :VH D503 Q103 IC603 D627 Q610 Q605 D616 Q607 Q608 Q609 D609 D610 D612 D617 IC606 D606 D619 Q502Q501 Q304 CN803 D507 D801 D806 Q803 CN306 IC301 D308 Q801 D634 CN605 D618 CN602 D621 D604 IC601 D622 CN601 D607 D61420 19 18 17 16 15 GND VIN D S 12345 6 8 1 2 3 6 7 84 (PB)0.4 14.0 2.5 2.4 -11.6 4.9 7.7 3.4 3.7 3.9 1.8 2.1 4.3 3 4 5 6 7 8 17 16 15 201918 14 -13V 9 12V N O P 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2114.0 13.02.8 3.8 5V 1 7V 15V1.7 0 159.0 0.2 0.8 12.0 3.2 13 12 11 10 2 25.8 3.5 1.9 2.9 8.7 6.0 4.0 2.4 3.6 3.5 0.1 0.1 -0.1 5.2 3.16.6 2.5 2.5 1.8 5V AUDIO VIDEO(PB) AUDIO123456789101112131415161718192021222324 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 1234 5 6 7 8 1 2 3 456 9 10 15 16 17 18 V HV1 FV 1234567 IO G 21 1 2 3 IO G IC103 IC501 CN801 IC608 CN302 CN604 J101 D631 CN303 CN301 IC602 CN603 D103 D632 D305 D307 D615 TU101 D620 D623 D805 D603 D613 D630 D608 D301 D302 Q101 IC101 Q305 D304 CN304 CN305 Q802 D810 D811 IC801 D802 D803 Q503 D502 D501 D506 Q302 Q301 Q303 PM601 Q606 D633 IC605 Q601 IC607 D624 D629 Q604 D628 Q602 D625 D605 D601 D626 IC604 Q102 D101 D102 D611D602 D804 D807 470p B LA7840L V-OUT PQ09RD11 9V-REG TK11819MTL DC-DC.CONVERTER 8P 1P :TAB 6P :DY 21P 13P 3P PQ05RD11 5V-REG PQ09RD11 9V-REG 1SS1191SS119 2P :MINI D1NL20U BLACK MTZJ-T-77-10 MTZJ-T-77-5.1C 2SK2251-01 PINOUT BUFFER 2SB709A CXA2130S Y/C/J 7P :MICRO 6P WHT 7P WHT 2SK1482-T H-DRIVE 2SC5388 H-OUT ERC06-15S RGP15GPKG23 NJM2903D PIN-COMP 1SS119 RGP10GPKG23 H.V AFC COMP 200V-RECT RED UN2211-TX V-PROTECT 2SD601A VM SW PM-21 OCP/OVP PROT PROTECT-DRIVE SI-3120CA 13.2V-REG RY-DRIVE SE-135N +135V-RECT BIAS REG-DRIVE D1NS4-TR STR-F6656 SWITCHING REG D1NL20U RECT RU1P-V1 S3L20UF4 +7V-RECT RU4AM-T3 +135V-RECT EGP30DL-6085 +12V-RECT D6SB60LF 2SK2845 DRIVE 1SS119 ERA22-08 D1NS6 +5V-RECT PQ30RV11 5V-REG H-CENT PUMPUP * RESET H.DY+ H.DY+ H.DY- H.DY- V.DY+ V.DY- 200V B.INT SDA SCL MTR 13.2V A.C +B VM OUT VM SW NICAM CHECK CHECK RESET Q NS 12VTO F BOARD CN903 TO MA10(1/3)BOARD CN001 TO MA10(1/3)BOARD CN1003 TO MA10(1/3)BOARD CN002 CN961 81 ATUNER,Y/C/J,HV DEFLECTION, POWER SUPPLYCN703 TO PICTURE TUBE TO F BOARD CN902 ABOARD : IC103 TK11819M ABOARD : IC501 LA7840LAMP + THERMAL PROTECTION PUMP UP GND Ver. OUTPUT OUTPUT STAGE Vcc NON INV. INPUT INVERTING INPUT Vcc PUMP UP OUT ABOARD : IC606 STR-F6614 A BOARD * mark LIST Ref No. KV-VF21M77 KV-VF21M40/M70 A BOARD WAVEFORMS 1 34 67 8 16 18 19 201.0Vp-p (H) 1.0Vp-p (H) 1.4Vp-p (H) 1.4Vp-p (V) 1.4Vp-p (V) 7.0Vp-p (H) 3.0Vp-p (H) 3.2Vp-p (H) 3.0Vp-p (H) 3.4Vp-p (H) 3.0Vp-p (H) 3.4Vp-p (H) 2.6Vp-p (H) 3.6Vp-p (H) 3.6Vp-p (H) 4.0Vp-p (H) 6.0Vp-p (H) 14.0Vp-p (H) 1.4Vp-p (V) 54.0Vp-p (V) 1100Vp-p (H) 150Vp-p (H) 5.5Vp-p (V) 54.0Vp-p (V) PAL SECAM 91 92 93 94 1 2 3 4 5 6 7 8 9 101112131415161718 82 VIDEO section CV BOARD F BOARD 24.0Vp-p (H) 1.4Vp-p (5msec) FAC NUET GND <Aboard , CV , F 6 GND CV BOARD : IC502 M5216POUT1 IN1 IN1+ VEE + 1234B-SS8848<HK.>-CV.-15 TO DY CN605 HV CN803 TO NECK ASSY IK CV KR G1 G4 HV HBUFFER AMP PWM AMP N/S MUTE TEMP-CORR SLICE 1SS119 CN962 D968D967 Q967 Q962 Q961 IC502 Q537 Q531 Q538 CN703 D964 D7105 6 7 8 1234 G1-3 KR G2 13 11 10 98 RGB ( 140.3 83.6 3.4 2.4 148.5 3.6 3.4 3.6 3.4 2.3 5.4 2.1 1.8 67.1 133.8 12V 74.1 0.5 134.3 67.0 0.4 0.9 2.1 2.42.4 1.8 2.3 6.1 5.7 140.8 139.5 1 2 3 6 5 4 OUT, VM )-2 -2 G4 G1-1 H1 H2 G1-2 KB KG RCV Q963 Q965 IC701 D711 CN704 CN702 IC703 IC702 D709 CN503 CN551 CN701 CN961 D704 D705 D707 D714 D702 D703 Q701 D701 Q968 D505 D504 D713 1P 5P BLK 3P BLK 2SA1837 VM.DRIVE.1 2SC4793 VM.DRIVE.2 7P 6P VB-RECT 5P RED 2SA1309A IK BUFFER MTZJ-3.9A M5216P N/S OUT 2SA1309A BUFFER MTZJ-3.9A MTZJ39 DC BIAS 3P KG G2 KBRED.OUT GREEN.OUT H1 1000V VM OUT CVVM SW VM 12V NS STBY5V GND NS- N.C NS+ V901 PICTURE TUBEH-STAT CN305 CN306 VM NS COILFV 876 5 + VCC OUT2 IN2 IN2+ 2 19 24 supply voltage input LOW 7 8 5 cathode transient cathode DC output black current measurement feedback supply voltage input HIGH 7V CURRENT SOURCE DIFFERENTIAL STAGE V bias C par FOLLOWERS 1 3 NON-INV IN INV IN + CV BOARD : IC701,702,703 TDA6101Q/N3Schematic diagrams Schematic diagram2 2 3 4 5 CN901 CN902C901 C902 F901 R901 R902 T902 T901 2P :VH 5P :VH 1P :TAB1M 1/2W 5A 1.2 10W :RB LFT LFT 21 43 ACTO A BOARD CN604 TO A BOARD CN601 (AC FILTER)B-SS8848<HK.>-F.. CV BOARD WAVEFORMS 44 663.0Vp-p (H) 3.0Vp-p (H) 3.0Vp-p (H) 100Vp-p (H) 100Vp-p (H) 100Vp-p (H) PAL/SECAM NTSC PAL/SECAM NTSC PAL/SECAM CV[RGB OUT,VM]F [AC FILTER] 83 95 96 84 SECTION 1 GENERAL- Bottom Side - 1-1. INTERNAL VIEWS - Top Side - 97 85 SECTION 2 DISASSEMBLY2-5. SERVICE POSITION (MA10 BOARD) 2-1. TOP COVER REMOVAL 2-2. VCR BLOCK ASSY REMOVAL2 Top cover 1 Four screws (+BVTP 3 X 12) 2-3. FF10 BOARD REMOVAL 2-4. MA10 BOARD REMOVAL 98 86 SECTION 3 CIRCUIT ADJUSTMENTS[ INSTRUMENTS TO BE USED ] [ CONNECTION ] [ SPECIFIED INPUT/OUTPUT LEVEL IMPEDANCE ] [ SET-UP FOR ADJUSTMENT ] 87 99 Xtal OSC CHECK SYNC AGC CHECK CARRIER DEVIATION CHECK WHITE/DARK CLIP CHECK 88 100 REC Y LEVEL CHECK REC CHROMA CHECK PB Y LEVEL CHECK SWITCHING LOCATION ADJUSTMENT WHEN CHANGE DRUM 101 89 SECTION 4 INTERFACE, IC PIN FUNCTION DESCRIPTION4-1. -COM PORT FUNCTION DESCRIPTION (MA10 BOARD IC001) 90 102 4-2. SYSTEM CONTROL-VIDEO BLOCK INTERFACE (MA10 BOARD IC402) 4-3. SYSTEM CONTROL-SERVO PERIPHERAL CIRCUIT INTERFACE (MA10 BOARD IC402) 91 103 4-4. SYSTEM CONTROL-MECHANISM BLOCK INTERFACE (MA10 BOARD IC402)*1. 30Hz 50% duty pulse approximately 5 msec. delayed from RF SW P. 4-5. SYSTEM CONTROL-SYSTEM CONTROL PERIPHERAL CIRCUIT INTERFACE (MA10 BOARD IC402) 4-6. SYSTEM CONTROL-AUDIO BLOCK INTERFACE (MA10 BOARD IC402) 92 104 4-7. SERVO/SYSTEM CONTROL PORT FUNCTION DESCRIPTION (MA10 BOARD IC402) 105 106 107 SECTION 5 DIAGRAMS 93 VIDEO BLOCK5-1. BLOCK DIAGRAMS FF10SYSTEM CONTROL,MAIN MICON, VCR SERVO,AUDIO OUT,Y/C PROCESS, AUDIO PROCESS,VIDEOAFM REC/PB AMP @,,@ CAPSTAN MOTOR DRUM MOTOR MA105-2. CIRCUIT BOARDS LOCATION 108 109 110 5-3. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMSMA10 BOARD [VIDEO REC/PB AMP] 94 MA10 (3/3)f ETerminal name of semiconductors in silk screen printed circuit ( ) * MA10 (2/3)SYSTEM CONTROL, MAIN MICON VCR SERVO, AUDIO OUT MA10 (1/3)[Y/C PROCESS] IC TRANSISTOR * *1234567 A B C D 111 112 113 114 22 2312 NTSC:4.8Vp-p (0.94msec) NTSC:5.0Vp-p (34msec) 1.0Vp-p (H)1.0 6 4IC402 CXP87852-061Q CXP87852-062QTV C TV L TV Y TV V FR C FR Y FR AL FR V SW 9V HEADPHONE 95 MA10CLK CS SECAM VM SW TV Y SECAM GND A EJECT LED 5 LED 6 JOG V PB G SW LED 1 LED 2 LED 3 LED 4 AL OUT V OUT FACT MODE LED2 A MUTE CAM(+) D VS D PG D FG SDA C IN CTL RESET REC CTL CTLHYS HIGH T/S LED CAP STOP (REC) HSYNC1 LED1 SCK D 5V AFT0 AFT1 MODE 4 MODE 3 MODE 2 MODE 1 A2 A1 CLK VDD Vdd SCK1 ASURA RESET XTAL EXTXL CAP RVS CAP DA CAM(-) CAM(+) CAP RVS CAP FG GND (M) GND (A) Vdd VCRPOW XTAL SO SIMUTE 9P PST572C RESET IC RPT-37PBT32 GP3S120 IC1101 D1110 CN404 D007 Q003 D001 D1101 Q1101 IC401 IC405 Q009 IC901 CN004 D202 D201 D251 IC003 D002 D402 IC002 Q453 Q452 D1117 D1118 D1119 D004 PH451 AUDIO(REC) 11 10 8 13 12 SW9V SW9V SW5V 2 1 5 6 7 3 4V N O P 1 2 3 4 5 6 7 8 9 101112131415161718192021SW5V MTR12V VCC 4 SW9V no mark:REC/PB 14 9 AUDIO(PB) AUDIO(REC) VOLTAGE ( ) :REC < > :PBPH452 D451 D1103 D405 D406 Q201 D252 D253 D254 D006 IC001 Q902 Q901 IC404 IC403 Q002 Q001 CN251 CN002 CN001 D1105 IC201 Q451 CN1003CN1004CN401 CN403 D403 S401 IC402 D005 Q402 GP3S120 GL528V1 MUTE M24C16-MN6T N.V.M MTZJ-T-77-6.2 MTZJ-T-77-6.2 MTZJ-T-77-5.1 CXP85460 MAIN UCOM V BUFF CXA2089Q A/V SW BA6305F CTL AMP BA10393F CTL AMP NJM062M CAP/DRUM DA AMP LB1643 CAM MOTOR DRIVE INV UN2211 INV 13P 21P MTZJ-T-77-9.1 TDA7494 AUDIO OUT 2SC1815GR LED DRIVE 8P6P7P 9P MTZJ-T-77-3.3 SBX1981-11 SIRCS UN2113 SW SCL0 SDA0 YM YS I OSD B OSD G OSD R EXLC XLC KEY1 KEY2 ASURA CS SLAVE RST HSYNC0 EXTAL RESET CRTPOW VPULSE HPULSE VOL M SW AVSS AVDD RF ENV SREEL FG TREEL FG VSYNC PB CTL DRM PG DRM FG CAP FG DRM DA SCLK S OUT 0 S IN 0 ASURA CS MP SO1 FACT AV ref SDA A0 GND(M) T SENS S SENS GND(M) BINT MP SW POS DEW REC COUNT NT JUDGE CAP PWM MODE1 MODE2 MODE3 MODE4 SCL MTR 12V REF CAP VS LIM MTR 13V CAM UNLOAD CAM LOAD SECAM/SVHSD S VHS GP A GP B GP C AF ENV SWP MTR 13.2V A MUTE LED 3 LED 4 LED 5 LED 6 SP L OUT NS S SEL F S SEL R OVP LED 7 VCC(SP) AFT0(TV) OSD R OSD G OSD B OVP YM/YS B INT NS CRT PWR VCR PWR RELAY IN RELAY OUT TU AL(REC) TU V(REC) RE LINE L RE LINE Y RE LINE C TU AL(TV) TU V(TV) TV V V PLS H PLS VM SW J CLK MONO GDC DGC D 5.8V (1/3) SYSTEM CONTROL,MAIN MICON, VCR SERVO,AUDIO OUTSPEAKER ST(NICAM)/ 1TU/2TU/NI AFT1/RST Q S SEL R/PLL QVD TRAP VCR L VCR V PB AL PB V +9V BIAS ADR DC OUT RE Y RE V RE C RE AL TU V(TV) TU AL(TV) TV C Ref No. KV-VF21M77 KV-VF21M40/M70 MA10 BOARD * mark LIST MA10(1/3) BOARD WAVEFORMS5.0Vp-p (V) 4.0Vp-p (V) 5.0Vp-p (16MHz) 3.7Vp-p (V) 5.0Vp-p (H) 5.0Vp-p(8.38MHz) 5.0Vp-p (H) 5.0Vp-p (V) 1.0Vp-p (H) 1.0Vp-p (H) 1.6Vp-p (H) 2.2Vp-p (H) 2.2Vp-p (H) 3.0Vp-p (H) 2.0Vp-p (H) 1.0Vp-p (H) 1.0Vp-p (H) 1.0Vp-p (H) REC/PB REC REC/PB REC/PB REC/PB REC/PB REC/PB REC PAL/SECAM:5.0Vp-p (20msec) NTSC:4.0Vp-p (1.4msec) PAL/SECAM:4.0Vp-p (1.6msec) PAL/SECAM:4.8Vp-p (1.3msec) PAL SECAM PAL SECAM NTSC NTSC PAL SECAM NTSC 13 13 10 115 116 117 118 4AERASE HEAD CTL(Y) GND(AV) A HEAD REC A HEAD PBV FM BUFF Y/C MIX C BUFF Y BUFF Q809 Q801 Q815 Q825 Q824 IC801 7 VIDEO(PB) VIDEO(REC) (REC/PB)VIDEO RF C (REC) VIDEO RF(PB) VIDEO RF(REC) (PB) 16 11 89REC:0.14Vp-p(H) PB:0.2Vp-p (H) PB:0.4Vp-p (H) PB:0.2Vp-p (H) 16 16 16 12 12 12Schematic diagrams <MA10(1/3) board , MA10(2/3) Schematic diagram MA10(2/3) BOARD WAVEFORMS 66 99 10 110.4Vp-p (H) 0.4Vp-p (H) 0.32Vp-p (H) 0.32Vp-p (H) 0.5Vp-p (H) 1.2Vp-p(H) 1.2Vp-p (H) 1.8Vp-p (V) 3.8Vp-p (H) 2.4Vp-p (H) 2.4Vp-p (H) 2.4Vp-p (H) 2.0Vp-p (H) 0.58Vp-p (3.58MHz) 0.54Vp-p (4.43MHz) PB:0.3Vp-p(H) REC PB REC REC REC/PB REC/PB REC PAL NTSC 0.24p-p (H) 0.25Vp-p (H) 0.5Vp-p (H) PAL SECAM NTSC REC:0.4Vp-p(H) 8 13 14 REC/PBNTSC 14 15 150.4Vp-p (H) 0.4Vp-p (H) 0.4Vp-p (H) REC/PB REC/PB PAL/SECAM NTSC REC PB NTSC PAL SECAM NTSC REC:0.2Vp-p(H) 0.4Vp-p(H) 22 23 96 MA101 2 3 4 5 6 7 8 9 1011121314151617181920211 2 3 4 5 6 10 12 13 14 15 VOLTAGE no mark:REC/PB ( ) :REC < > :PB VIDEO RF VIDEO RF(REC) VIDEO RF Y (REC) VIDEO(PB) VIDEO(REC/PB)T1001 Q821 Q830 Q823 Q1002 Q1001 Q812 Q808 Q803 CN1001 CN1002 IC802 LC89978M-TE-L 1H DELAY CLK BUFF BIAS SW BA7755AF-E2 AUDIO HEAD SW 2SD879-AA OSC V FM AMP UN2213 JOG SW V FM AMP 6P LA71504M-MPB Y/C PROCESS GND(AV) CTL(X) (2/3) (Y/C PROCESS) 97 MA10SP CH2 F SW5V 1234567891011121 VOLTAGE no mark:REC/PB ( ) :REC < > :PB 2 3 4 VIDEO RF(REC)CN702 CN701 IC701 2SD601A BUFF 4P 8P HA118295NT VIDEO REC/PB AMP REC CUR PB RF RF SWP GND SP CH1 S SP CH2 S HIFI CH2 F HIFI CH2 S SP CH1 F HIFI CH1 F HIFI CH1 S (3/3) (VIDEO REC/PB AMP) MA10 (3/3) BOARD WAVEFORMSREC 0.36Vp-p (H) PB 2.2Vp-p (H) REC/PB 5.0Vp-p (H) PB 121 122 FF10 BOARD FF10 board ,, ,, , << << < MA10 (3/3) board FF10 98 FF10(LED,EJECT SW) A B C D 12345 SECTION 7 ELECTRICAL PARTS LIST 105 F A109 ACV110 CV
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