Toshiba MV20FL4C Service Manual Download Page 56

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J351

HTJ-035-28A

J701_1

JPJ1187-010010

D793

SLR-342VCT32

REC/OTR

D791

SLR-342VCT32

T-REC

D792

SLR-342VCT32

POWER

SW799

EVQ21505R

CH DOWN

SW795

EVQ21505R

REC/OTR(OPEN)

SW791

EVQ21505R

STOP/EJECT

SW792

EVQ21505R

PLAY

SW793

EVQ21505R

FF/CUE(SKIP FF)

SW794

EVQ21505R

REW(SKIP REW)

SW798

EVQ21505R

CH UP

SW796

EVQ21505R

VOL UP

SW797

EVQ21505R

VOL DOWN

SW751

EVQ21505R

POWER ON/OFF

GND

B+

Vout

OS753

PIC-28143TC5

SPEAKER

SP352

MSF-18D5SB05

8OHM

SPEAKER

SP351

MSF-18D5SB05

8OHM

AUDIO SIGNAL

CD702 CU2B2801

CD757_2
CU2A2501

DANS LA NOMENCLATURE DES PIECES

N’UTILISER QUE CELLS DECRITES

DANGEREUSES AN POINT DE VUE SECURITE

ETANT

LES PIECES REPAREES PAR UN

ATTENTION:

DESCRIBED IN PARTS LIST ONLY

CRITICAL FOR SAFETY,USE ONES

ARE

SINCE THESE PARTS MARKED BY

CAUTION:

THE DC VOLTAGE AT EACH PART WAS MEASURED

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

NOTE:

TUNER VIDEO SIGNAL

C755

220

6.3V

C702

0.0022

C701

0.0022

C751

100P

C781

0.001

C779

0.001

R775

820 1/4W

R778

820

1/4W

R351

220 1/2W

R352

220 1/2W

R793

270

1/4W

R761

270

1/4W

R754

270

1/4W

R702_1

75 1/4W

R766

100

1/2W

R776

1K 1/4W

R777

1.5K 1/4W

R771

1K 1/4W

R772

1.5K 1/4W

R773

2.7K

1/4W

R774

5.6K 1/4W

C352

16V

C353

16V

W812

W813

W804

W806

W808

W809

W805

CD356

CU123201

CD355 CU123201

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

(OPERATION PCB)

OPERATION SCHEMATIC DIAGRAM

FROM/TO SOUND AMP

(CP755)

FROM/TO MICON/TUNER

PCB030

FRONT A IN R

SOUND OUT R

TEXA33

SP OUT R

SP OUT L+

SP OUT L-

SP OUT R-

SP OUT R+

4.8

REMOCON OUT

KEY B

KEY A

REC LED

T-REC LED

POWER ON L

AT+5V

GND

FRONT VIDEO IN

GND

SOUND GND

SOUND OUT L

SP OUT L

GND

POWER ON LED

FRONT AUDIO IN L

(CP4202)

Summary of Contents for MV20FL4C

Page 1: ...SERVICE MANUAL COLOR TELEVISION VIDEO CASSETTE RECORDER FILE NO 140 200119 MV20FL4C ...

Page 2: ...ether there are the portions which are deteriorated around the serviced places serviced or not Check the insulation between the antenna terminal or external metal and the AC cord plug blades And be sure the safety of that INSULATION CHECK PROCEDURE 1 2 3 4 Unplug the plug from the AC outlet Remove the antenna terminal on TV and turn on the TV Insulation resistance between the cord plug terminals a...

Page 3: ... DECK HIFI PRINTED CIRCUIT BOARDS MAIN CRT OPERATION DECK SYSCON COMB SCHEMATIC DIAGRAMS Y C AUDIO CCD HEAD AMP MICON POWER IN OUT CHROMA IF SOUND AMP HIFI DIGITAL COMB FILTER TV POWER DEFLECTION CRT OPERATION DECK INTERCONNECTION DIAGRAM WAVEFORMS MECHANICAL EXPLODED VIEWS CHASSIS EXPLODED VIEWS MECHANICAL REPLACEMENT PARTS LIST CHASSIS REPLACEMENT PARTS LIST ELECTRICAL REPLACEMENT PARTS LIST A1 ...

Page 4: ...tination US w CATV Tuning System F Synth Input Impedance VHF UHF 75 ohm CH Coverage 2 69 4A A 5 A 1 A I J W W 1 W 84 Intermediate Picture FP 45 75MHz Frequency Sound FS 41 25MHz FP FS 4 5MHz Preset CH No Stereo Dual TV Sound US ST Tuner Sound Muting Yes G 4 Signal Video Signal Input Level 1 V p p 75 ohm Output Level 1 V p p 75 ohm S N Ratio Weighted 50 Horizontal Resolution at SP Mode 220Line Audi...

Page 5: ... No Clock Date Yes CH AV Yes Tape Counter Linear Counter Yes Tape Speed Yes Sleep Time Yes Stereo Audio Output Yes Bilingal No SAP Yes Control Volume Yes Level Bright Contrast Sharpness Color Yes Tint Yes Bass Treble Balance Yes Manual Tracking Yes Play Stop FF Rew Rec OTR T Rec Pause Eject Tape In Symbol Mark Yes Auto Tracking Manual Tracking Yes Caption Text Yes Index No Muting Yes Hi Fi Yes Rep...

Page 6: ...Yes 9 Yes 0 Yes CH Up Yes CH Down Yes Volume Up Yes Volume Down Yes Input Select Yes Play Yes F Fwd Yes Rew Yes Pause Still Yes Stop Yes Rec OTR Yes 2Keys Eject Yes Counter Reset Yes Speed Yes Timer Rec Yes 2Keys TV Monitor No Quick View Yes Program Yes Slow Yes Auto Tracking Yes Set Tracking Yes Set Tracking Yes Menu Yes Enter Yes Cancel Yes Call Yes TV Caption Text Yes Sleep Timer Yes Muting Yes...

Page 7: ...ke Coil No Energy Star Yes Protect of FBT Leak Circuit Yes Dirty Head No V chip USA V chip No CANADA V chip No CM Advance No Movie Advance No G 14 Accessories Owner s Manual Language English French w Guarantee Card Yes Remote Control Unit Yes Battery Yes UM size x pcs UM 4 x 2 pcs No Rod Antenna No Poles Terminal Loop Antenna No Terminal U V Mixer No 300 ohm to 75 ohm Antenna Adapter Yes Antenna C...

Page 8: ...RCA x 2 Stereo Video Output RCAx1 Audio Output RCA x 2 Stereo Euro Scart No Diversity No Ext Speaker No DC Jack 12V Center No VHF UHF Antenna Input F Type AC Inlet No G 16 Set Size Approx W x D x H mm 574 x 483 x 514 5 G 17 Weight Net Approx 26 5 kg 58 5 lbs Gross Approx 28 5 kg 62 9 lbs G 18 Carton Master Carton No Content Material Dimensions W x D x H mm Description of Origin Gift Box Yes Materi...

Page 9: ...ig 1 3 1 2 3 4 Remove the 2 screws 1 Disconnect the following connectors CP401 CP502 CP4201 and CP4202 Unlock the support 2 Remove the TV VCR Block in the direction of arrow Fig 1 3 1 4 MAIN PCB Refer to Fig 1 4 1 2 3 4 5 6 Remove the screw 1 Remove the Main PCB Holder Remove the 2 screws 2 Remove the 3 screws 3 Disconnect the following connectors CP810A CP820A and CP402 Remove the Main PCB in the...

Page 10: ...ck Plate in the direction of arrow B Remove the 2 screws 1 Remove the screw 2 Remove the Deck Shield Plate in the direction of arrow 1 Deck Shield Plate Fig 1 5 1 6 DECK CHASSIS Refer to Fig 1 6 1 2 3 Remove the 3 screws 1 Disconnect the following connectors CP1004 CP1005 CP1006 CP4001 CP4002 and CP4003 Remove the Deck Chassis in the direction of arrow 1 1 1 Deck Chassis Syscon PCB Fig 1 6 1 VCR B...

Page 11: ...ig 2 2 2 3 TAPE GUIDE L Refer to Fig 2 3 A Move the Cassette Holder Ass y to the back side Unlock the 2 supports 1 and remove the Tape Guide L Remove the REC Lever Recorder only 1 2 3 1 Main Chassis Tape Guide L REC Lever Fig 2 3 A The REC Lever is not installed on the Video Cassette Player 1 1 2 2 2 Tape Guide R Flap Lever Main Chassis Move the Cassette Holder Ass y to the front side so that the ...

Page 12: ...Sensor Cover L3 1 Main Chassis Sensor Cover L3 1 Fig 2 8 Turn the Middle Gear clockwise so that the Tension Holder hook is set to the position of Fig 2 9 A to move the Tension Arm Ass y Remove the Tension Spring Unlock the support 1 and remove the Tension Arm Ass y Remove the Tension Adjust Unlock the 2 supports 2 and remove the Tension Band Ass y Float the hook 3 and turn it clockwise then remove...

Page 13: ...ove the P5 Spring Remove the screw 1 Unlock the 2 supports 2 and remove the Cassette Opener Remove the Pinch Roller Block Pinch Roller Arm Spring Pinch Roller Lever Ass y and P5 3 Arm Ass y 1 2 3 4 2 11 S REEL T REEL Refer to Fig 2 11 1 2 2 P5 Spring Cassette Opener P5 3 Arm Ass y Pinch Roller Block Pinch Roller Arm Spring Pinch Roller Lever Ass y Main Chassis Fig 2 12 A Screw Torque 5 0 5kgf cm N...

Page 14: ...ction NOTE 1 AHC Ass y Cylinder Unit Ass y 2 2 2 Screw Torque 3 0 5kgf cm Fig 2 15 1 3 2 2 16 CAPSTAN DD UNIT Refer to Fig 2 16 Remove the Capstan Belt Remove the 3 screws 1 Remove the Capstan DD Unit 1 2 3 Screw Torque 5 0 5kgf cm Fig 2 16 2 17 MIDDLE GEAR MAIN CAM Refer to Fig 2 17 A Capstan DD Unit Capstan Belt 1 1 1 Remove the Polyslider Washer 1 then remove the Middle Gear Remove the E Ring t...

Page 15: ...ding Gear Spring Screw Torque 5 0 5kgf cm Fig 2 19 A 1 2 Main Rod Main Loading Gear Tension Lever Loading Gear T Loading Gear Spring Loading Arm T Ass y Loading Gear Spring LED Reflecter Idler Arm Ass y Clutch Actuator Spring Holder Loading Arm S Ass y Loading Gear S NOTES 1 When you install the Loading Arm S Ass y Loading Arm T Ass y and Main Loading Gear align each marker Refer to Fig 2 19 B Mar...

Page 16: ...ip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support Refer to Fig 3 2 2 GND on the CRT Screwdriver Alligator Clip Support CRT GND on the CRT Rubber Cap CRT Support Fig 3 1 Fig 3 2 3 After one side is removed pull in the opposite direction to remove the other NOTE Take care not to damage the Rubber Cap INSTALLATION 1 Clean the spot where the cap was loc...

Page 17: ...using a blower type IC desoldering machine Refer to Fig 4 2 2 Fig 4 2 NOTE Do not add the rotating and the back and forth directions force on the IC until IC can move back and forth easily after desoldering the IC leads completely When IC starts moving back and forth easily after desoldering completely pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering...

Page 18: ...4 8 Thin tip Soldering Iron NOTE When the IC leads are bent during soldering and or repairing do not repair the bending of leads If the bending of leads are repaired the pattern may be damaged So be always sure to replace the IC in this case Finally confirm the soldering status on four sides of the IC using a magnifying glass Confirm that no abnormality is found on the soldering position and insta...

Page 19: ...lop Frequency Generator Front Loading Switch Frequency Modulation Frequency Sub Carrier Forward Generator Ground High Pass Filter I K L M N O P R S H SW Hz IC IF IND INV KIL L LED LIMIT AMP LM LDM LP L P F LUMI M MAX MINI MIX MM MOD MPX MS SW NC NR OSC OPE PB PB CTL PB C PB Y PCB P CON PD PG P P R REC REC C REC Y REEL BRK REEL S REF REG REW REV RVS RF RMC RY S CLK S COM S DATA SEG SEL SENS SER SI ...

Page 20: ...tor Separation Transistor Tracking Trick Playback Test Point Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse Voltage Display Video Playback Variable Resistor Video Recording Visual Search Fast Forward Visual Search Rewind Voltage Super Source Vertical Synchronization Voltage Tuning Crystal Luminance Chrominance C1 2 ...

Page 21: ...e center position NOTE Also can be adjusted by pressing the ATR button for more than 2 seconds during PLAY VOL MIN 5 POWER ON total hours and PLAY REC total hours are displayed on the screen Refer to the PREVENTIVE CHECKS AND SERVICE INTERVALS CONFIRMATION OF USING HOURS Can be checked of the INITIAL DATA of MEMORY IC Refer to the NOTE FOR THE REPLACING OF MEMORY IC VOL MIN 6 VOL MIN 1 Initializat...

Page 22: ...the tape Clean the rubber and parts which the rubber touches Replace when rolling becomes abnormal Clean the Head CONFIRMATION OF USING HOURS POWER ON total hours and PLAY REC total hours can be checked on the screen Total hours are displayed in 16 system of notation NOTE The confirmation of using hours will not be possible if clock has been set To reset clock either unplug AC cord and allow at le...

Page 23: ...l alcohol 3 CYLINDER Wrap a piece of chamois around your finger Dip it in isopropyl alcohol Hold it to the cylinder head softly Turn the cylinder head counterclockwise to clean it in the direction of the arrow Refer to the figure below NOTE Do not exert force against the cylinder head Do not move the chamois upward or downward on the head Use the chamois one by one Cylinder Head Clean the Audio Co...

Page 24: ...E 7E 50 57 79 79 5A 5A 7A 7A 60 3 4 5 6 7 8 The unit will now have the correct DATA for the new MEMORY IC Table 1 1 2 Fig 1 ADDRESS is now selected and should blink Using the PLAY or STOP button on the remote step through the ADDRESS until required ADDRESS to be changed is reached Press ENTER to select DATA When DATA is selected it will blink Again step through the DATA using PLAY or STOP button u...

Page 25: ...002E JG002F APJG002B00 APJG002E00 APJG002F00 Adapter Dial Torque Gauge 10 90gf cm Dial Torque Gauge 60 600gf cm VSR Torque Brake Torque S Reel T Reel Ass y Brake Torque T Reel Ass y VSR Torque Brake Torque S Reel JG154 APJG154000 Cable Used to connect the test point of SERVICE and GROUND JG162B APJG162F00 JG162Y JG162F APJG162B00 APJG162Y00 Cable Cable Cable Used to connect the Syscon PCB and Main...

Page 26: ...e Syscon PCB to the CRT PCB with the cable JG162Y Remove the Operation PCB from the set then connect it with the Syscon PCB If necessary connect CD702 Front A V Jack Input Terminal Short circuit between TP1001 and Ground with the cable JG154 Refer to MAJOR COMPONENTS LOCATION GUIDE The EOT BOT and Reel Sensor do not work at this moment At that time the STOP EJECT button is available to insert and ...

Page 27: ...f cm during playback in SP mode Tentelometer Video Tape Guide Roller P1 Post Fig 1 3 1 2 CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION 1 2 3 Set to the PLAY mode Adjust the Tension Adjust until the edge of the Tension Arm is positioning within 0 5mm range from the standard line center of Main Chassis After this adjustment confirm that the cut position is located in A area as shown in Fig 1 ...

Page 28: ...ter JG002E JG002B Fig 1 4 B NOTE If the torque is out of the range replace the following parts Check item 1 4 1 5 Replacement Part Idler Ass y Clutch Ass y S Reel side T Reel side S Reel Tension Band Ass y Tension Arm Ass y T Reel T Brake Spring T Brake Ass y 2 CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM Tape Running Mechanism is adjusted precisely at the factory Adjustment is not necess...

Page 29: ...orm becomes 1 or 2 of Fig 2 3 1 2 3 4 5 6 7 8 When the height is not correct turn the screw 3 to adjust the height Then adjust the 1 3 again When the reflected picture is distorted turn the screw 1 clockwise until the distortion is disappeared When the reflected picture is not distorted turn the screw 1 counterclockwise until little distortion is appeared then adjust the a P4 Post Fig 2 2 A Audio ...

Page 30: ...3 MECHANISM ADJUSTMENT PARTS LOCATION GUIDE 5 6 7 8 9 10 1 2 3 4 1 Tension Adjust 2 Tension Arm 3 Guide Roller 4 P1 Post 5 Audio Control Head 6 7 8 9 10 X value adjustment driver hole P4 Post T Brake Spring T Reel S Reel D1 4 ...

Page 31: ... Activate the adjustment mode display of Fig 1 1 and press the channel button 03 on the remote control to select VIF VCO Press the VOL UP DOWN button on the remote control until the digital voltmeter is 2 5V Use an isolation transformer when performing any service on this chassis Before removing the anode cap discharge electricity because it contains high voltage When removing a PCB or related com...

Page 32: ...pe pattern Adjust the VR401 until the SHIFT quantity of the OVER SCAN on right and left becomes 10 2 2 12 VERTICAL SIZE NOTE Adjust after performing adjustments in section 2 11 1 2 3 4 5 Receive the cross hatch signal from the Pattern Generator Using the remote control set the brightness and contrast to normal position Activate the adjustment mode display of Fig 1 1 and press the channel button 06...

Page 33: ...f Fig 1 1 and press the channel button 14 on the remote control to select CONTRAST Press the VOL UP DOWN button on the remote control until the contrast step No becomes 85 Press the INPUT SELECT button on the remote control to set to the AV mode Then perform the above adjustments 1 2 2 16 SUB TINT 1 2 3 4 5 6 7 Receive the color bar pattern RF Input Using the remote control set the brightness cont...

Page 34: ...ELECTRICAL ADJUSTMENTS D2 4 3 ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE VCR SECTION SYSCON PCB TU601 CP602 TP4201 J4202 J4201 TP1001 TP1002 TP4001 ...

Page 35: ...ELECTRICAL ADJUSTMENTS D2 5 TV SECTION FOCUS VOLUME SCREEN VOLUME TP806 J801 FB401 VR401 VR402 MAIN PCB CRT PCB TP804 VR502 T501 ...

Page 36: ...performing adjustments in section 4 1 1 2 3 4 5 Receive the green raster pattern from color bar generator Adjust the pair of purity magnets to center the color on the screen Adjust the pair of purity magnets so the color at the ends are equally wide Move the deflection yoke backward to neck side slowly and stop it at the position when the whole screen is green Confirm red and blue colors Adjust th...

Page 37: ...FEAT AFT OUT CLAMP VIDEO TONE DELAY 55 5 7Vreg 41 RESET 42 33 39 46 13 POWER ON CONTROL RGB MATRIX CONTRAST HPF ACC KILLER DET ACC DET CHROMA APC DET DEMODULATOR VCXO VCO ADJ 32 HV BLK VERTICAL COUNT DOWN V RAMP 29 17 HORIZONTAL COUNT DOWN H VCO AFC 2 AFC 1 7 6 R G B CUT OFF BUS I F TU601 11 5 4 1 SAW FILTER CF601 1 5 4 TU1_AUDIO_A TU1_VIDEO SDA SCL HIFI MICON POWER OPERATION DECK UNGER 8V X602 3 ...

Page 38: ...EO NORMAL_A 6 2 3 1 5 Q4005 BIAS CTL 11 4 P CON 5V 4 C ROT RF SW IN AUDIO MUTE HA SW ENV DET Q4006 BIAS OSC Q4003 SW Q4001 Q4002 AUDIO PB SW Q4012 BUFFER COIL BIAS OSC R HA GND P P R P L H L C LPF REC AMP AUTO BIAS EQ AMP PB EE MUTE LINE AMP LPF ALC 1 2 3 R P 1 2 3 28 QV QH 60B SYNC SEP VIDEO AGC VX01 PLL REC APC REC APC VSS R P Main CONV 3 58M BPF2 B UP AMP AGC ACC DET 3 58M BPF1 NYR COMB OUT CCD...

Page 39: ...VD OSD_G AFT_M OSD_B OSD_BLK HD Y C AUDIO CCD HEAD AMP IN OUT TV CAPSTAN DD UNIT TV_POWER_H FF REW L 97 73 CTL AMP OUT Q1004 FF REW_SW 18 VIDEO H SW H SW VCR_POWER_H TV Q4204 TV POWER SW 82 TV_A_MUTE TV_A_MUTE 23 2 1 SENS LED MSSEN B MSSEN A 1 4 3 2 1 4 3 2 Q1002 SENSER SW MS_SEN A Q1009 MS_SEN B Q1003 AT 5 6V P CON 5V D1003 P CON 5V EOT SENSOR Q1013 EOT P CON 5V 3 21 20 BOT 4 P CON 5V LDM LDM BOT...

Page 40: ...FI_ENV SCL SDA ST_SELECT REAR_VIDEO_IN FRONT_VIDEO_IN HF1 HF_COM FSC HF2 Y C_AUDIO NORMAL_A Y C AUDIO CCD HEAD AMP IN OUT MICON POWER OPERATION DECK Y C AUDIO CCD HEAD AMP IN OUT 51 58 40 P CON 9V P CON 5V INPUT SW AMP AMP OUTPUT SW PNR BPF FM LIM DEM BLOCK AMP AMP AGC LOGIC VCO FO ADJ LOGIC TV 2 4 6 7 1 3 5 J701 25 J4201 3 2 6 4 J4202 3 2 AUDIO_OUT_R AUDIO_OUT_L ...

Page 41: ...404 R543 Q513 W001 R469 W056 C407 C510 C524 R524 D519 W025 IC502 Q410 Q402_1 W022 W037 D 50 9 D505 C450 C430 C418 W042 W039 C520 R470 D526 C439 D410 S502 S501 C422 W044 VR502 R554 W035 W030 R417 R419 W028 W027 C517 D517 R503 B505 W007 D515 W855 C554 W002 L501_1 HS502 HS402 HS403 W060 FB401 C420 C425 W061 C405 C403 W059 R5 00 TH501_1 D510 D503_1 W841 CP810A C537 W003 R460 W034 W062 C424 R517 CP820A...

Page 42: ...001 C4023 Q4006 Q4005 L4003 L4007 R4004 C4034 C4030_1 C4027 W181 W174 C4012 L4006 W211 W106 C4002 W184 W168 R4045 W110 W116 W115 L4004 L4009 R4048 W176 W177 W094 C4047 L4005 W096 L605 C649 IC1004 W140 W208 W298 W212 W213 W209 W926 L608 W260 D607 W290 D612 D609 D608 C645 C674_2 R677 W253 W257 W252 W258 W259 W255 W291 R635 R636 W350 W283 W086 W067 W851 W155 W156 Q1003 Q 1 0 0 9 W188 D4205 W085 W248 ...

Page 43: ...C922 R904 R905 C919 R912 C921 C920 R906 R1075 Q1023 C651 R656 C615_1 R672 C670 C669 R4213 C5557 R1042 R1038 C5522 C676 W906 W914 R681 R667 C5559 R5520 R5521 C5560 C5561 W930 C4043 C5562 R5525 R5526 C1071 IC4001 C4019 C4016 C4055 C4015 R4012 C4069 R4038 C4061 R4041 Q4012 C4060 R4043 C4064 R4039 C4066 R4042 R4054 C4059 Q4010 C4054 R4032 Q4009 R4029 Q4007 R4028 C4044 R4034 R4025 C4038 C4037 C4036 R40...

Page 44: ...W751 SW791 SW792 SW793 SW794 SW795 SW796 SW797 SW798 SW799 W804 W805 W806 W809 W002 W006 W007 W008 W010 W013 W014 C755 W015 W016 W017 W018 W019 W020 CD355 CD356 W005 W004 W023 W009 W012 W024 W011 CD757_2 OS753 C352 C701 W813 W808 W812 S102 S101 S105 S106 S103 S104 CP101 Q101 PRINTED CIRCUIT BOARDS OPERATION SOLDER SIDE DECK SOLDER SIDE ...

Page 45: ...201M MPB Y C A CCD H AMP IC 1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 27 28 29 3 30 31 32 33 34 35 36 37 38 39 4 40 41 42 43 44 45 46 47 48 49 5 50 51 52 53 54 55 56 57 58 59 6 60 61 62 63 64 65 66 67 68 69 7 70 71 72 73 74 75 76 77 78 79 8 80 9 PLAYBACK COLOR SIGNAL PLAYBACK LUMINANCE SIGNAL RECORD COLOR SIGNAL RECORD LUMINANCE SIGNAL CAUTION DIGITAL TRANSISTOR FSC ENV_DET C_ROTARY H...

Page 46: ...SD_B GND REEL_T OSD_BLK SD_SYNC CAP_CTL Y C_CLK Y C_CS CYL_DRIVE Y C_DATA V REC_ST_H Y C_CLK Y C_DATA CYL_DRIVE Y C_CS H SW P CON 5V POWER_FAIL DC SD_VIDEO PGIN X_RAY_TEST ENV_DET VCR_A_MUTE PGIN CTL CTL C_ROTARY DUMMY_V SYNC CYL_PG VCR_A_MUTE TAB_SW V REC_ST_H H AMP_SW1 CYL_FG TV_A_MUTE COMP EXT_A_MUTE SD_SYNC GND HD IIC_OFF LDM_R VD CAP_FG DEGAUSS_H LDM_F POWER_FAIL DC CYL_FG OSD_R OSD_G CYL_PG ...

Page 47: ... 4W R644 100 1 4W R505 100 R640 470 1 4W R663 100 R662 100 R4080 100 C688 220 16V YK C642 22 16V KA C643 22 16V KA CP810B 51048 0910 1 2 3 4 5 6 7 8 9 CAUTION DIGITAL TRANSISTOR OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME P CON 8V P CON 5V CHROMA P CON 5V TU1 AT 5V UCON P CON 5V GND AT 5V BACKUP 8 7VREF AT 5V BACKUP AT 5V UCON 5 7VREF PCON...

Page 48: ... OUT W892 L4205 100uH CAUTION DIGITAL TRANSISTOR DURING PLAYBACK MEASURED WITH THE DIGITAL TESTER NOTE THE DC VOLTAGE AT EACH PART WAS OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME AUDIO SIGNAL REC SOUND_L SOUND_R SP_OUT_R SP_OUT_L SOUND_GND FRONT_AUDIO_IN_R FRONT_AUDIO_IN_L FRONT_VIDEO_IN AT 5V UCON TV_POWER_H REMOCON_IN T REC_LED REC_LED K...

Page 49: ...635 47 16V YK C641 220 25V YK C645 1 50V KA C655 47 16V YK C659 47 16V YK C612 220 6 3V YK C610 2 2 50V KA C620 47 6 3V KA C649 1 50V KA C632 2 2 50V KA C683 470 6 3V YK W813 W809 W876 W804 W940 W801 W921 W951 W878 W926 W849 W898 W962 W937 W946 W894 L610 100uH 0607 L608 100uH L604 100uH CP604 IMSA 9130S 06L 1 2 3 4 5 6 OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS...

Page 50: ...P CH C317 0 1 MMTS C303 0 033 B C316 0 1 B R310 220 1 4W R309 220 1 4W R316 4 7K R304 4 7K R305 4 7K R302 3 3K R359 47K R353 68K R350 100K 1 4W R308 3 3K R306 1 8K R303 4 7K R311 100K R318 100 R307 1 8K R351 390 R317 100 R313 390 C350 0 1 50V KA C323 1 50V KA C315 47 16V YK C352 33 25V YK C309 47 16V YK C314 2 2 50V KA W903 W840 W846 W873 W874 L301 100uH 0607 L302 100uH 0607 OF PRINTING AND SUBJEC...

Page 51: ... WITH THE DIGITAL TESTER NOTE THE DC VOLTAGE AT EACH PART WAS OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME S809Y S809X AUDIO SIGNAL REC AUDIO SIGNAL PB FSC SDA SCL P CON 5V P CON 5V TU2_AUDIO VCR_A_MUTE AUDIO_OUT_L AUDIO_OUT_R FRONT_AUDIO_IN_L FRONT_AUDIO_IN_R REAR_AUDIO_IN_L REAR_AUDIO_IN_R TU2_AUDIO AUDIO_OUT_R AUDIO_OUT_L V REC_ST_H AUDI...

Page 52: ...C901 0 01 B C919 120P CH C924 100P CH C920 56P CH C904 27P CH C925 0 1 B C906 0 01 B R908 1 2K R913 100 R905 1K R912 6 8K R914 820 R911 3 3K R910 1K R902 1K R903 24K R909 100 R901 27K R904 560 R906 1K C903 0 47 50V KA C907 470 6 3V YK C914_1 3 3 50V KA W920 W931 L901_1 820uH L902_1 150uH 0305 L904 10uH L903 15uH 0305 CY901 IMSA 9130B 06 1 2 3 4 5 6 OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE ...

Page 53: ...SWITHING Q513 DTC114ESTP 5VSWITCHING Q507 KTC3198 AT Y GR FEED BACK SWITCHING Q505 2SC2909 SWITHING Q512 2SC2909 SWITHING Q503 2SA1371 SWITHING Q508 KTA1281_Y SWITHING Q502 2SA1371 SWITHING C523 470 35V MHE C524 1000 25V MHE C521 220 200V YXF C531 2200 25V MHE C537 0 47 50V YK C520 1000 16V MHE C507_1 470 200V UP C518 470P 500V B C517 0 0015 2KV YR C516 470P 500V B C505 0 22 275V PHE840 C502_2 0 0...

Page 54: ...66 AT Y GR PIN DRIVE C421 1000 35V MHE C433 22 100V MHE C418 1 250V MHE C438 0 001 500V B C411 0 01 100V MKT C429_1 470P 2KV B C409 0 027 M C419 0 082 TF C417 0 0022 500V B C416 22P 500V SL C402 0 001 B C439 180P 500V B C450 0 001 2KV YR C423_2 0 47 200V FHS C415 0 33 TF C413 0 033 630V PP C443 0 0022 1 25KV MPP C428 0 012 1 25KV MPP C430 0 001 2KV YR C432 0 1 100V MKT C426 0 001 2KV YR R438 8 2K ...

Page 55: ...NOTE Q811 2SC1740SP GREEN AMP Q812 2SC1740SP BLUE AMP Q802 2SC2621 GREEN AMP Q810 2SC1740SP RED AMP Q801 2SC2621 RED AMP Q803 2SC2621 BLUE AMP C808 0 001 2KV YR C804 680P B C805 560P B C806 820P B C807 100P B C801 0 001 B R828 2 7K 1 4W R807 56 1 4W R809 56 1 4W R805 56 1 4W R810 1 8K 1 4W R811 1 8K 1 4W R812 1 8K 1 4W R813 220 1 4W R814 220 1 4W R815 220 1 4W R817 330 1 4W R819 330 1 4W R829 2 7K...

Page 56: ... USE ONES ARE SINCE THESE PARTS MARKED BY CAUTION THE DC VOLTAGE AT EACH PART WAS MEASURED WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL NOTE TUNER VIDEO SIGNAL C755 220 6 3V KA C702 0 0022 B C701 0 0022 B C751 100P B C781 0 001 B C779 0 001 B R775 820 1 4W R778 820 1 4W R351 220 1 2W R352 220 1 2W R793 270 1 4W R761 270 1 4W R754 270 1 4W R7...

Page 57: ...D IN PARTS LIST ONLY CRITICAL FOR SAFETY USE ONES ARE SINCE THESE PARTS MARKED BY CAUTION CP101 52044 0445 1 2 3 4 Q101 RPT 38PB113 BOT SENSOR DURING PLAYBACK MEASURED WITH THE DIGITAL TESTER NOTE THE DC VOLTAGE AT EACH PART WAS OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME VCC DECK SCHEMATIC DIAGRAM DECK PCB FROM TO SYSCON SERVO TIMER VE885...

Page 58: ...CRO MOTOR PG GND PG OUT GND M COM W OUT V OUT U OUT GND M COM W OUT V OUT U OUT VMA214 9 8 7 6 5 4 3 CD803 GND TMA495 AT 13V UNREG 8V UNREG 8V MOTOR GND AT 12V GND GND AT 30V GND CUT OFF G OUT R OUT B OUT GND CRT SOCKET J801 NC NC NC NC TU601 14 15 12 13 11 10 9 8 7 6 5 4 3 2 1 IF 30V SDA SCL AGC 5V EP LP HEAD HI FI HEAD SP HEAD EP LP COM SP COM EP LP CH2 L EP LP CH1 R HF2 L HF1 R HF COM SP CH2 L ...

Page 59: ... div REC PB 100mV 0 5µs div PB 100mV 5ms div REC 20V 10µs div 3 2 5 1 Y C AUDIO CCD HEAD AMP REC PB 2V 20µs div 9 MICON PB 1V 2ms div REC PB 1V 10ms div REC PB 1V 50ns div REC PB 1V 10ms div REC PB 1V 0 5ms div 12 10 11 6 7 REC PB 1V 5ms div 8 4 PB 0 5V 1ms div 13 14 REC PB 200mV 20ns div REC PB 0 5V 20µs div IN OUT CHROMA IF 15 200mV 20µs div ...

Page 60: ...schematic diagram NOTE WAVEFORMS 17 16 200mV 20µs div 200mV 20µs div 23 200mV 2ms div HIFI 22 200mV 2ms div 0 5V 5µs div 5V 0 1ms div 51 53 52 20V 1ms div TV POWER 0 5V 5ms div 1V 10ms div 5V 20µs div 0 5V 20µs div 57 55 56 54 DEFLECTION 20 0V 20µs div 20 0V 20µs div 59 60 CRT 20 0V 20µs div 58 ...

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