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Service Manual

Video Cassette
Recorder

VHR-VT821A

(Product Code: 1 682 333 57)

(Australia)

REFERENCE No. SM2200001

FILE NO.

The components designated by a symbol ( ) in this schematic diagram designates components whose value are of special

significance to product safety. Should any component designated by a symbol need to be replaced, use only the part designated

in the parts List. Do not deviate from the resistance, wattage, and voltage ratings shown.

NOTE:

Substitute parts may be supplied as the service parts.

N.S.P.: Not available as service parts.

Design and specifications are subject to change without notice.

PRODUCT SAFETY NOTICE

VHR-VT821A / NZ

(Product Code: 1 682 333 58)

(New Zealand)

Содержание VHR-VT821A NZ

Страница 1: ...ance to product safety Should any component designated by a symbol need to be replaced use only the part designated in the parts List Do not deviate from the resistance wattage and voltage ratings shown NOTE Substitute parts may be supplied as the service parts N S P Not available as service parts 1 2 Design and specifications are subject to change without notice PRODUCT SAFETY NOTICE VHR VT821A N...

Страница 2: ...WIRING There are parts which use the insulation material such as a tube or tape for safety or which are assembled in the condition that these do not contact with the printed board The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts Therefore put these parts in the original positions Please include the following informations when you order parts Particularl...

Страница 3: ...VICING MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS BLOCK DIAGRAMS Y C AUDIO HEAD AMP SYSTEM CONTROL SERVO TIMER TUNER HI FI 21PIN OSD VPS NICAM OPERATION POWER PRINTED CIRCUIT BOARDS SYSCON AUDIO OPERATION SCHEMATIC DIAGRAMS Y C AUDIO HEAD AMP SYSTEM CONTROL SERVO TIMER POWER OPERATION TUNER HI FI OSD VPS NICAM INTERCONNECTION DIAGRAM WAVEFORMS MECHANICAL EXPLODED VIEWS CHASSIS EXPLODED VIEWS ME...

Страница 4: ... 5MHz Preset CH 80CH RF Converter Output Yes Channel 36 ch 23 69 ch Level Impedance 73 dBu 75 Ohm Sound Selector No Stereo Dual TV Sound G ST NICAM DUAL Tuner Sound Muting Yes G 3 Power Power Source AC 240V 50Hz DC Power Consumption at AC 11 W at 240 V 50Hz Stand by at AC 3 W at 240 V 50Hz Per Year Protector Power Fuse Yes Dew Sensor No G 4 Regulation Safety SAA Radiation AS NZS G 5 Temperature Op...

Страница 5: ...ject Tape In Symbol Mark Yes Others CH AV Yes Clock Date Yes Repeat No Pin Code No Tape Counter Yes Index Yes Hotel Lock No Tape Speed Yes Manual Tracking Bar Setting Yes Hi Fi Yes S Repeat SR R SR Play Yes VPS No PDC No TEST Signal Yes G 9 OSD Language Eng Ger Fre Spa Ita G 10 Clock Timer Calendar 1990 1 1 2081 12 31 and Timer Timer Events 8 prog 1 month Back up One Touch Recording Max Time SP 5 ...

Страница 6: ...ram Yes Program Video Plus No Auto Tracking No Set Tracking No Set Tracking No Menu Yes Enter Yes Cancel Ch Skip Yes Call Yes Zero Return Yes Clock Counter Yes CM Skip No Audio Select Yes G 13 Features Auto Head Cleaning Yes Auto Tracking Yes Index Search Yes HQ VHS Standard High Quality Yes Auto Power On Auto Play Auto Rewind Auto Eject Yes Auto Repeat Yes Auto Power Off Yes VIDEO PLUS SHOWVIEW G...

Страница 7: ...hannel Down Yes F FWD Cue Yes Rew Rev Yes Eject Stop Yes Rec OTR Yes Main Power SW No Indicator Power No Stand by No Rec OTR No Repeat No Tape In No Kurupika Guide No One Touch Playback No Terminals Front Video Input RCA x1 Audio Input RCA x2 Stereo Other Terminal No Rear Video Input RCA x1 Audio Input RCA x2 Stereo Video Output RCA x1 Audio Output RCA x2 Stereo Euro Scart No Ext Speaker No DC Jac...

Страница 8: ...tion of arrow B Then lift in direction of arrow C A C B Flap Fig 1 2 Fig 1 1 1 3 DECK CHASSIS Refer to Fig 1 3 Remove the 3 screws 1 Disconnect the 6P ribbon wire CD1002 from Audio head H5001 Remove the Deck Chassis in the direction of arrow Connectors CP1001 CP4001 and CP4003 are disconnected automatically 1 2 3 B A Top Cabinet Operation PCB Front Cabinet 1 1 1 1 3 3 3 2 2 2 2 2 2 2 Upper side Bo...

Страница 9: ...ker R 1 2 3 Link Unit NOTE 1 2 In case of the Locker R installation check if the two positions of Fig 2 3 B are correctly locked When you install the Cassette Side R be sure to move the Locker R after installing 2 4 LINK UNIT Refer to Fig 2 4 Set the Link Unit to the Eject position Unlock the support 1 Remove the A side of the Link Unit first then remove the B side 1 2 3 Fig 2 4 2 5 LINK LEVER FLA...

Страница 10: ...ading Motor 1 Main Chassis Worm NOTE 1 2 In case of the Worm installation check if the value of the Fig 2 6 B is correct In case of the Loading Motor installation hook the wire on the Cassette Opener as shown Fig 2 6 C Fig 2 6 B 19 2 0 1mm Safety surface for pressing of the insert Fig 2 7 B Fig 2 7 D Tension Band Tension Spring 1 2 4 Tension Band Tension Arm Ass y 3 1 Tension Holder Tension Connec...

Страница 11: ...oves Refer to Fig 2 9 A Do not adhere the stains on it When you install the reel clean the shaft and grease it FG 84M If you do not grease noise may be heard in FF REW mode After installing the reel adjust the height of the reel Refer to MECHANICAL ADJUSTMENT 1 2 3 4 5 6 Fig 2 9 A S Reel 1 A T Reel A 1 Idler Arm Ass y Idler Gear NOTE 1 2 In case of the S Reel and T Reel installation check if the c...

Страница 12: ...ER PINCH ROLLER BLOCK P5 ARM ASS Y Refer to Fig 2 10 A Unlock the support 1 and remove the Cassette Opener Remove the Pinch Roller Block and P5 Arm Ass y 1 2 Fig 2 10 A 1 Cassette Opener P5 Arm Ass y Pinch Roller Block Main Chassis NOTE Do not touch the Pinch Roller Use gloves In case of the Pinch Roller Block and the Pinch Roller Cam installation install correctly as Fig 2 10 B 1 2 Fig 2 10 B Can...

Страница 13: ...e Main Loading Gear Remove the Main Rod Tension Lever Loading Arm S Unit and Loading Arm T Unit 1 Main Rod Main Loading Gear Tension Lever Loading Arm T Unit Loading Arm S Unit Fig 2 16 A 2 14 CAPSTAN DD UNIT Refer to Fig 2 14 A Remove the Capstan Belt Remove the 3 screws 1 Remove the Capstan DD Unit 1 2 3 Screw Torque 4 0 5kgf cm Capstan DD Unit Capstan Belt 1 1 1 In case of the Capstan DD Unit i...

Страница 14: ... Fig 2 18 B Fig 2 18 C Cassette Guide Post Cassette Guide Post 2 17 Remove the Polyslider Washer 1 Remove the Clutch Ass y and Ring Spring Remove the Clutch Lever Remove the Coupling Gear Coupling Spring and Clutch Gear 1 2 3 4 Fig 2 17 A NOTE 1 When you install the Loading Arm S Unit Loading Arm T Unit and Main Loading Gear align each marker Refer to Fig 2 16 B Fig 2 16 B Loading Arm T Unit Main ...

Страница 15: ...sing a blower type IC desoldering machine Refer to Fig 3 2 2 Fig 3 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 ...

Страница 16: ... 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 instal...

Страница 17: ...flop 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...

Страница 18: ...ator 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 18 ...

Страница 19: ...C Refer to the WHEN REPLACING EEPROM MEMORY IC Adjusting of the Tracking to the center position Refer to the MECHANICAL ADJUSTMENT GUIDE ROLLER and ELECTRICAL ADJUSTMENT PG SHIFTER Press the ATR button on the remote control for more than 2 seconds during PLAY While pressing the CH UP button on the set press the STOP button on the set for more than 2 seconds during PLAY Make the short circuit betwe...

Страница 20: ...ontact with the tape Replace when rolling becomes abnormal Clean the Head Clean the rubber and parts which the rubber touches ADDRESS DATA CONFIRMATION OF USING HOURS PLAY REC total hours can be checked on the FIP Total hours are displayed in 16 system of notation 16 x 16 x 16 x thousands digit value 16 x 16 x hundreds digit value 16 x tens digit value ones digit value 1 2 3 4 5 Turn on the POWER ...

Страница 21: ... below 2 TAPE RUNNING SYSTEM When cleaning the tape transport system use the gauze moistened with isopropyl 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 m...

Страница 22: ...gain step through the DATA using FF or REW button until required DATA value has been selected Pressing ENTER will take you back to ADDRESS for further selection if necessary Repeat steps 3 to 6 until all data has been checked When satisfied correct DATA has been entered turn POWER off return to STANDBY MODE to finish DATA input Turn on the POWER While pressing the CH UP button on the set press the...

Страница 23: ...0A00 ORAPJG154000 Adapter Dial Torque Gauge 10 90gf cm Dial Torque Gauge 60 600gf cm Post Adjustment Screwdriver X Value Adjustment Screwdriver Master Plane Reel Disk Height Adjustment Jig Torque Tape VHT 063 Cable VSR Torque Brake Torque S Reel T Reel Ass y Monoscope 6KHz For 2 head 1 speed model 4 head model Color Bar 1KHz For 2 head 1 speed model 4 head model Hi Fi Audio For Hi Fi model X Value...

Страница 24: ...tes 20 2gf in the beginning of playback 1 2 USING A CASSETTE TYPE TORQUE TAPE JG100A 1 2 3 After confirmation and adjustment of Tension Post position Refer to item 1 2 load the cassette type torque tape JG100A and set to the PLAY mode Confirm that the right meter of the torque tape indicates 50 90gf cm during playback in SP mode Confirm that the left meter of the torque tape indicates 25 40gf cm d...

Страница 25: ...2 as shown in Fig 2 1 B even if you press the Tracking Button to move the envelope The envelope waveform will begin to decrease when you press the Tracking Button Adjust the PG shifter during playback Refer to the ELECTRICAL ADJUSTMENTS 1 2 3 4 5 6 7 NOTE After adjustment confirm and adjust A C head Refer to item 2 2 CH 2 SW Pulse TP4001 CH 1 Track CH 2 Track CH 1 Envelope TP4002 Fig 2 1 A Entranc...

Страница 26: ...cope to TP4001 CH 2 to TP4002 and CH 3 to HOT side of Audio Out Jack Playback the VHS Alignment Tape JG001U or JG001V Refer to SERVICING FIXTURE AND TOOLS Press and hold the Tracking Auto button on the remote control more than 2 seconds to set tracking to center Set the X Value adjustment driver JG153 to the 4 of Fig 2 2 B Adjust X value so that the envelope waveform output becomes maximum Check i...

Страница 27: ...STMENT PARTS LOCATION GUIDE 5 6 7 8 9 10 1 2 3 4 1 Tension Connect 2 Tension Arm 3 Guide Roller 4 Audio Control Head 5 X value adjustment driver hole 6 7 8 9 10 P4 Post T Brake Spring T Reel S Reel Adjusting section for the Tension Arm position ...

Страница 28: ...rm this adjustment when repairing the circuits or replacing electrical parts or PCB assemblies 1 BASIC ADJUSTMENT 1 2 3 4 1 2 PB Y LEVEL Connect the oscilloscope to pin 5 of CP4503 through 75 ohm resistor Playback the alignment tape JG001F Check if the VIDEO OUTPUT LEVEL is 1 05 0 15Vp p Refer to Fig 1 2 1 2 3 Fig 1 2 1 05Vp p 1 3 E E LEVEL Connect the color bar generator to pin 9 of CP4503 Connec...

Страница 29: ...ct the AC voltmeter to pin 1 of CP4503 and pin 3 of CP4503 through 47K ohm resistor After the input of audio signal and video signal proceed with the recording Playback the recorded section and check if the AUDIO OUTPUT LEVEL is 500 mVrms 2 dB CONDITIONS MODE Self RECORD and PLAYBACK Input Signal Input Select AV INSTRUCTIONS Audio Signal 1KHz 500mVrms Video Signal PAL Color Bar ...

Страница 30: ...ICAL ADJUSTMENT PARTS LOCATION GUIDE WIRING CONNECTION 30 CP601 TP1001 TP4001 TP4002 J4507 J4506 J4505 T501 S502 CP4503 CP651 S501 CD601 J4503 CP4501 CP4002 A C HEAD C D 1 0 0 2 AC IN SYSCON PCB AUDIO PCB OPERATION PCB TU6001 CD4501 ...

Страница 31: ... R LPF 31 26 19 23 21 24 18 YLPF P R P R CLAMP NL EMPH NL DE EMPH FBC ALC CLAMP LPF YNP ATT P R N C D E Y APA VIDEO AGC SQUELCH FBC VIDEO ALC CLEAR SYNC 6db AMP 6db AMP C SQUELCH C K N P B D BPF MIX LEVELADJ B E C K P R P R P R P R VCA DELAY CLPF CCD LPF MAIN CONV1 MAIN CONV2 CLPF P R 60 58 55 54 52 35 46 C CCD 42 Y CCD 39 P R L4006 Y C AUDIO CCD HEAD AMP IC IC4001 HA118217F OSC Q4004 NORMAL A REC...

Страница 32: ...TA IIC_CLK CG_CLK TUNER HI FI 21PIN OSD VPS NICAM CG_CS 2 1 4 3 SYSCON SOFTWARE SERVO IC IC1001 OEC7070B CG_DATA 68 CG DATA 72 71 IIC SDA IIC CLK EEP ROM IC IC1099 S 24C08ADPA 01 6 5 81 TAB_SW Q1010 CENT SW 2 1 4 3 SEG 4 SEG 5 SEG 9 SEG 10 53 58 54 59 OPERATION SEG 6 SEG 7 55 56 SEG 8 57 SEG 3 52 GRID4 GRID5 63 64 SEG 1 SEG 2 50 51 GRID3 62 GRID2 61 GRID1 SEG4 SEG5 SEG9 SEG10 SEG6 SEG7 SEG8 SEG3 G...

Страница 33: ...UT 22 2 HI FI AUDIO CANAL SW IC IC5501 TDA9605H 35 36 37 21 22 13 14 42 43 6 SYSCON SERVO TIMER CG_DATA CG_CLK CG_CS IIC_DATA IIC_CLK Y C AUDIO HEAD AMP HF_COM HF2 NORMAL_A_IN NORMAL_A_OUT HF1 3 18 2 15 16 9 J4503 9 10 8 7 5 4 3 2 NICAM IC IC6601 TDA9874H 25 24 26 29 30 10 2 1 38 8 15 X6601 24 576MHz 10 11 FRONT_V_IN J4505 3 2 2 2 J4506 J4507 TU_V_OUT 7 17 35 36 ...

Страница 34: ...2 SW SEG4 SW SEG5 SW SEG6 SW GRID4 SEG9 SEG7 SEG8 SEG5 SEG6 SEG4 GRID3 SEG3 GRID2 SEG1 SEG2 GRID1 REC OTR PLAY FF CUE STOP EJECT OS651 1 CH DOWN CH UP SYSCON SERVO TIMER CH UP_SW KEY A REMOCON POWER BLOCK DIAGRAM 5 D503 D506 T501 IC501 KIA431 VOLTAGE CTL IC 3 1 IC502 LTV 817M VB AC IN 8 Q511 P ON SW Q505 POWER_ON H POWER_FAIL L503 F501 RECTIFIER SW Q503 CONTROL Q501 4 PHOTO COUPLER 12V REG VCC 12V...

Страница 35: ......

Страница 36: ...67 W069 W072 D1005 W142 CP4002 W061 W062 C P 4 0 0 3 W102 W107 W070 W082 W075 W089 W149 W153 W137 R1004 W085 W078 W047 W039 W084 W049 W040 W042 CP4503 W105 W121 W138 W139 C6616 W150 W151 W122 W101 W106 W088 W086 W163 W090 C4091 W843 W159 W160 W156 R1005 Q4802 W141 R4502 C4509 R4810 C5505 W103 W104 C4803 C4810 W110 W826 W827 L4801 W129 C4806 C4804 L4802 L4804 R1024 W096 W092 TP1003 W819 W115 W125 W...

Страница 37: ... R509 D502 C509 D511 D508 W026 R507 R503 R511 R505_1 R510 Q501 C508 D506 D504 D503 D505 L503 FH502 F501 FH501 C501_1 S502 S501 W013 L1001_1 W024 W027 R512 W017 R1001 R1031 R1028 R1003 R1042 R1011 W031 D1004 W015 R1037 W030 W034 W060 C 5 2 0 _ 1 D515 R517 CP651 W048 C1013 C1001 D4001 W058 W050 OS651 C511_1 Q503 R514 IC501 W010 W007 W014 W036 W053 W021 W019 W033 W008 C652 D651 W004 W001 C526 W003 W8...

Страница 38: ...080 C4073 C4059 R4030 C4058 R4031 C4063 C4065 R4034 C4013 C5503 C4072 C4082 R4023 C4053 C4051 C4060 C4077 R4033 C4049 R4020 C5508 C4068 C4066 R1048 C1007 C4101 R1049 C4020 C4030 R680 Q665 Q662 R676 Q664 Q663 Q661 Q660 Q659 Q658 Q656 Q654 Q653 R666 R668 Q657 Q655 R659 R661 R662 R664 R669 R670 R672 Q651 Q652 C4070 IC1003_1 C1025 R660 R663 R4028 Q4005 R4017 R4005 R4004 R513 C515 R515 Q1010 R1010 R100...

Страница 39: ...29 C6605_1 R6615 I C 6 6 0 1 R5511 R5510 R5508 R4802 R4809 R1009 R4501 C4529 C4531 C4532 C4530 19 C4808 R4805 C4802 IC4801 C4814 R4807 C4813 C4811 C4809 R4002 C4005 R4001 C4004 R4003 C4083 Q4003 C6008 C6613 C6611 C6604_1 C6617 C6624 C6621 C6626 C6618 R6613 R6616 R6614 D6601 C6628_1 C6009 C4501 C4502 C4504 C4503 R4503 R4504 R4505 R4508 VEA966A AUDIO CHIP MOUNTED PARTS SOLDER SIDE 42 ...

Страница 40: ...RANSISTOR CAUTION DIGITAL TRANSISTOR D4001 1SS133 L4001 1616002 FE OSC COIL 1 2 3 4 6 S802X S802Y 2FSC IIC_CLK P CON 5V IIC_DATA EE VV_V_OUT DUMMY_V SYNC V H_SW PICTURE_CTL NA_REC H DUMMY_V SYNC SYNC A_MUTE TRICK H IIC_DATA IIC_CLK ENV DET CTL CTL V REC_ST H 2FSC VIDEO_IN EE VV_V_OUT FRONT_V_IN V H_SW SYNC TU_V_OUT ENV DET NORMAL_A_IN SP L NORMAL_A_OUT HF1 SP_COM HF2 HF_COM SP R P CON 5V EP L AT 5...

Страница 41: ...SW POWER_ON H AFT_S_CURVE DUMMY_V SYNC HIFI_ENV DET P CON 5V AT 5 8V_A POWER_ON H POWER_FAIL CAP_VCO CG_CS AT 12 6V CG_CLK CG_DATA V H_SW PICTURE_CTL NA_REC H DUMMY_V SYNC A_MUTE TRICK H IIC_DATA IIC_CLK CAP_FG ENV DET CTL CTL CAP_F R SYNC CAP_LIMIT V REC_ST H CTL CAP_CTL CYL_FG PG CYL_CTL CTL RESET SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SYNC SEG7 EOT SEG8 BOT SEG9 SEG10 TAB_SW GRID1 GRID2 GRID3 GRID4 GRID...

Страница 42: ...3_Y 12V REG C513 470 35V YK R501 22K R510 330K1 2W R511 330K1 2W R508 1K R509 1K 1 4W R517 5 6K 1 4W R526 47K R525 470 1 4W R524 1K 1 4W R519 10K 1 4W R512 1K 1 4W R513 1K R515 3 6K 1 R516 2 7K 1 R520_1 10K 1 4W R506 18K C501_1 0 1 275V PHE840 C521 0 001 B C509 150P 500V B C511_1 0 0047 500V B C510 0 018 B C505 0 0056 B C504 0 027 B C512 0 01 B C529 0 1 F C515 0 01 B C520_1 0 01 500V E C514 0 0022...

Страница 43: ... 6 8K 1 4W R605 13K 1 4W R607 3 3K 1 4W R664 180 R666 180 R662 180 R661 180 R659 180 R658 470 1 4W R660 470 R663 470 R668 180 R678 470 1 4W R680 470 R669 180 R670 180 R676 180 R672 180 R665 10K R671 10K C653 0 1 F C651 47 6 3V KA C652 220 6 3V YK OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DURING PLAYBACK MEASURED WITH THE DIGITAL TESTER N...

Страница 44: ...NT_A_IN L AUDIO_IN L AUDIO_IN R AUDIO_OUT L AUDIO_OUT R HIFI_REC_MUTE HIFI_ENV DET HIFI_H SW IIC_CLK IIC_DATA AFT_S_CURVE AT 5V TU_A_OUT TUNER_AUDIO_L TUNER_AUDIO_R SIF TU_A_ R AT 5V RF_CONV A_OUT P CON 5V RF_CONV V 32V NORMAL_A_OUT HF1 NORMAL_A_IN HF_COM IIC_CLK HF2 IIC_DATA AUDIO_OUT R P CON 5V AUDIO_OUT L HIFI_H SW HIFI_REC_MUTE RF_CONV A_OUT HIFI_ENV DET IIC_DATA IIC_CLK TU_A_OUT SIF TU_A_ R A...

Страница 45: ... B C4806 47 6 3V KA L4804 33uH L4806 39uH L4512 10uH L4511 10uH OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DURING PLAYBACK MEASURED WITH THE DIGITAL TESTER NOTE THE DC VOLTAGE AT EACH PART WAS AUDIO_OUT R AUDIO_IN L VIDEO_IN AUDIO_OUT L AUDIO_IN R P CON 5V RF_CONV V EE VV_V_OUT AUDIO_IN R AUDIO_IN L FRONT_V_IN FRONT_A_IN L FRONT_A_IN R P ...

Страница 46: ...TING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DURING PLAYBACK MEASURED WITH THE DIGITAL TESTER NOTE THE DC VOLTAGE AT EACH PART WAS IIC_DATA IIC_CLK P CON 5V GND SIF TU_A_ R TUNER_AUDIO_R TUNER_AUDIO_L TU_A_OUT FROM TO SYSCON SERVO TIMER FROM TO TUNER HI FI FROM POWER SYSCON PCB NICAM SCHEMATIC DIAGRAM PCB010 VMA231 SDA SCL SDO VDDD3 1 OUTL 11 TP1 ...

Страница 47: ... M F R CAP_VCO CAP_FG CYLINDER UNIT ASS Y UN4001 EP LP_COM SP_COM HF_COM EP LP CH2 L EP LP CH1 R HF2 L HF1 R SP CH2 L SP CH1 R EP LP HEAD SP HEAD HI FI HEAD 3 2 1 9 8 7 5 4 6 AUDIO_IN R AUDIO_OUT R AUDIO_IN R AUDIO_OUT R PCB240 VIDEO_IN AUDIO_IN L VIDEO_OUT AUDIO_OUT L GND GND GND GND GND VIDEO_IN AUDIO_IN L VIDEO_OUT AUDIO_OUT L GND GND GND GND GND AUDIO PCB VEA966 SW2 SW1 FRONT AV JACK H5002 FUL...

Страница 48: ...div The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram NOTE Y C AUDIO HEAD AMP REC 0 5V 10us div 7 REC PB 200mV 0 5ms div 2 PB 200mV 10us div 18 17 PB 1 0V 200ms div PB 1 0V 200ms div SYSCON SERVO TIMER 12 POWER PB 50 0V 2us div 59 ...

Страница 49: ...PLODED VIEW 601 602 603 605 606 607 608 610 610 701 PCB270 OPERATION PCB 613 701 618 702 702 702 702 PCB010 SYSCON PCB TU6001 T501 614 616 704 612 614 619 620 611 621 PCB240 AUDIO PCB 60 705 612 615 703 617 604 609 ...

Страница 50: ...osition NOTE PART NO CLASS MARK GREASE G 555G AA MG 33 AB FG 84M AC FL 721 AD 302 312 315 UN4001 M2003 502 504 H5001 503 306 305 332 507 335 342 322 508 324 348 506 501 H5002 323 508 341 331 334 333 314 301 313 307 300 317 309 336 346 345 321 319 320 AB 316 318 325 347 AB AB AB AD AA AA AA AA AB AB AB AB AB AB AB AB AC AC AA 61 CD1501 CD1002 504 M101 304 CD1502 ...

Страница 51: ...0 509 308 344 327 343 326 328 AA AA AB AB AB AA AA AD AA AA AA AA AA CD1501 CD1502 Applying positions AA AB AC and AD for the grease are displayed for this section Check if the correct grease is applied for each position NOTE PART NO CLASS MARK GREASE G 555G AA MG 33 AB FG 84M AC FL 721 AD AA 62 ...

Страница 52: ...P 612 OR701WPA0717 HOLDER DECK 613 OR755WPAA011 PLATE COVER POWER 614 OR85OP700036 HOLDER EOT SENSOR 615 OR702WSAA031 PLATE BOTTOM 616 OR701WPA0686 HOLDER DECK 617 OR722529A002 SHEET RATING 618 OR702WSB0060 CABINET TOP 619 OR85OP700037 HOLDER LED 620 OR753WUA0057 SPRING EARTH TUNER 621 OR753WUAA006 SPRING EARTH HEAD AMP 701 OR8110226804 SCREW TAP TITE P BIND 2 6x8 702 OR8109230802 SCREW TAP TITE B...

Страница 53: ... ARM ASS Y 2 H5002 OR1543D02013 HEAD FULL ERASE HVFHP0032A 314 OR85OA400235 TENSION ARM ASS Y 2 M101 OR1596S98001 MOTOR LOADING MDB2B66 315 OR85OA400231 INCLINED BASE S UNIT M2001 OR1510S98036 CAPSTAN DD UNIT F2QVB08 316 OR85OP800358 SPRING LOCKER M2003 OR1589S11017 MICRO MOTOR I2OAL05 317 OR85OP900736 CASS HOLDER UN4001 ORA4F501B500 CYLINDER UNIT ASS Y A4F501B500 318 OR85OP900748 CASS SIDE L 319 ...

Страница 54: ...8181J RC 180 OHM 1 8W R5509 ORR903N8393J RC 39K OHM 1 8W R678 ORR002T4471J RC 470 OHM 1 4W R5510 ORR903N8103J RC 10K OHM 1 8W R680 ORR903N8471J RC 470 OHM 1 8W R5511 ORR801R7335J RC 3 3M OHM 1 10W R1001 ORR002T4102J RC 1K OHM 1 4W R6001 ORR002T4102J RC 1K OHM 1 4W R1003 ORR002T4332J RC 3 3K OHM 1 4W R6002 ORR002T4102J RC 1K OHM 1 4W R1004 ORR002T4121J RC 120 OHM 1 4W R6613 ORR903N8822J RC 8 2K OHM...

Страница 55: ...056UF 50V C4032 ORCS0RB0414K CC 0 01 UF 50V C5521 ORE50HU2100M CE 10 UF 16V C4034 ORE50HU2100M CE 10 UF 16V C5522 ORE50HU2100M CE 10 UF 16V C4037 ORCS0RCH4Q1J CC 47 PF 50V C5523 ORE50HU2100M CE 10 UF 16V C4039 ORCS0RF0414Z CC 0 01 UF 50V C5524 ORE50HU5010M CE 1 UF 50V C4040 ORE50HU2100M CE 10 UF 16V C5526 ORE50HU2100M CE 10 UF 16V C4041 ORCS0RB04U2K CC 680 PF 50V C5527 ORE50HU2100M CE 10 UF 16V C4...

Страница 56: ...NSISTOR SILICON 2SA1037AKT146R S X4001 OR100CT4R407 CRYSTAL HC 49 U 4 433619MHz Q658 ORTNAAC05002 COMPOUND TRANSISTOR KRC103SRTK X6601 OR100CT02401 CRYSTAL HC 49 U 24 576MHz Q659 ORTNAAC05002 COMPOUND TRANSISTOR KRC103SRTK Q660 ORTNAAC05002 COMPOUND TRANSISTOR KRC103SRTK TUNER Q661 ORTNAAC05002 COMPOUND TRANSISTOR KRC103SRTK Q662 ORT6YJ1037K0 TRANSISTOR SILICON 2SA1037AKT146R S TU6001 OR0162K01026...

Страница 57: ...7 ORR002T4332J RC 3 3K OHM 1 4W CMPL METAL PLASTIC CAPACITOR CMPP METAL POLYPROPYLENE CAPACITOR SWITCHES 3 The tolerance of Resistor and Capacitor is indicated on the end of the parts code RESISTORS SW603 OR0504201T32 SWITCH TACT SKQNAED010 A 0 05 G 2 SW604 OR0504201T32 SWITCH TACT SKQNAED010 B 0 1 J 5 SW605 OR0504201T32 SWITCH TACT SKQNAED010 C 0 25 K 10 SW606 OR0504201T32 SWITCH TACT SKQNAED010 ...

Страница 58: ...Jul 02 100 Printed in Japan Version A SANYO Electric Co Ltd Osaka Japan ...

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Sanyo VHR-VT821A NZ, Руководство по обслуживанию

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