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JVC HR-XVC20US Service Manual
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JVC HR-XVC20US Service Manual

Dvd/cd player hi-fi
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See also: User Manual
SERVICE MANUAL
DVD/CD PLAYER Hi-Fi STEREO VIDEO CASSETTE RECORDER
SPECIFICATIONS
GENERAL
Power supply:
AC 120V 60Hz
Power consumption:
Operation: 16W
Stand by: 2W
Weight:
7.9lbs (3.6 kg)
Dimensions:
Width : 16-15/16 inches (430 mm)
Height : 3-7/8 inches (99 mm)
Depth : 9-13/16 inches (249 mm)
Inputs/Outputs:
Video:
In: 1Vp-p/75 ohm
Out: 1Vp-p/75 ohm
In: - 8 dBm/50K ohm
Audio:
Out: - 8 dBm/1K ohm
Antenna:
UHF/VHF IN/OUT: 75 ohm coaxial
Hi-Fi Frequency Response:
20Hz to 20,000Hz
Hi-Fi Dynamic Range:
More than 90dB
VCR section
Video Head:
4 Rotary Heads
Audio Track:
Hi-Fi Sound - 2 Tracks / MONO Sound - 1 Track
Tuner:
181 Channel Freq. Synthesized
VHF
UHF
CATV
RF Channel Output:
Channel 3 or 4, Switchable
F.FWD/REW Time:
Approx. 1 minute 48 seconds (with T-120 Cassette Tape) (at+25°C)
HR-XVC20U
HR-XVC21U
(The specifications shown pertain specifically to the model HR-XVC20US.)
2-13
14-69
14-36 (A)-(W)
37-59 (AA)-(WW)
60-85 (AAA)-(ZZZ)
86-94 (86)-(94)
95-99 (A-5)-(A-1)
100-125 (100)-(125)
01 (5A)
This service manual is printed on 100% recycled paper.
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD
,
S
C
DVD section
Signal system:
NTSC
Applicable disc:
DVD (12cm, 8cm), CD (12cm, 8cm)
Audio characteristics:
DVD: 4Hz - 22KHz
Frequency response:
CD: 4Hz - 20KHz
S/N Ratio:
90dB
Harmonic distortion:
0.02%
Wow and flutter:
Below Measurable Level
Dynamic range:
90dB
Output:
Video :
Audio :
Digital Audio : 0.5Vp-p 75 ohm
Pickup:
CD :
DVD : Wavelength: 640 - 660 nm
ACCESSORIES:
Remote control x 1
Batteries (2 x AA)
75 ohm Coaxial Cable x 1
AUDIO/VIDEO Cable x 1
HR-XVC20US, HR-XVC21UC D2VP11
(RCA) 1 Vp-p/75ohm
(RCA) - 8 dBm/1Kohm
Wavelength: 775 - 805 nm
Maximum output power: 0.5 mW
Maximum output power: 1.0 mW
No.82948
2002/12

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Summary of Contents for JVC HR-XVC20US

  • Page 1 SERVICE MANUAL DVD/CD PLAYER Hi-Fi STEREO VIDEO CASSETTE RECORDER HR-XVC20U HR-XVC21U SPECIFICATIONS (The specifications shown pertain specifically to the model HR-XVC20US.) GENERAL DVD section Power supply: AC 120V 60Hz Signal system: NTSC Power consumption: Operation: 16W Applicable disc: DVD (12cm, 8cm), CD (12cm, 8cm)

  • Page 2: Table Of Contents

    REFERENCE PREVENTIVE CHECKS AND SERVICE INTERVALS ..... 1-15 SEMICONDUCTOR BASE CONNECTIONS ......4-1 CONFIRMATION OF HOURS USED ........1-15 GENERAL SPECIFICATIONS[HR-XVC20US] ......4-2 CLEANING ................1-15 SERVICING FIXTURES AND TOOLS ........1-16 MECHANISM ADJUSTMENT PARTS LOCATION GUIDE .... 1-16 MECHANICAL ADJUSTMENT ..........1-17 TAPE REMOVAL METHOD AT NO POWER SUPPLY ..

  • Page 3: Important Safety Precautions

    Important Safety Precautions Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.

  • Page 4: Safety Check After Servicing

    Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compli- ance with safety standards.

  • Page 5: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 1-3: DECK CD (Refer to Fig. 1-3) REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS Make the short circuit on the position as shown Fig. 1-3 using a soldering. If you remove the Deck CD with no 1-1: TOP CABINET AND FRONT CABINET soldering, the Laser may be damaged.

  • Page 6: Vcr Deck

    DISASSEMBLY INSTRUCTIONS 1-4: VCR DECK (Refer to Fig. 1-4) Remove the 3 screws 2. Disconnect the following connectors: (CP101, CP102, CP103 and CP3001). Remove the AC Head Cover and VCR Deck in the direction of arrow. AC Head Cover VCR Deck CP101 CP103 CP102...

  • Page 7: Removal Of Vcr Deck Parts

    DISASSEMBLY INSTRUCTIONS NOTE 2. REMOVAL OF VCR DECK PARTS In case of the Locker R installation, check if the one 2-1: TOP BRACKET (Refer to Fig. 2-1) position of Fig. 2-3-B are correctly locked. Extend the 2 supports 1. When you install the Cassette Side R, be sure to move Slide the 2 supports 2 and remove the Top Bracket.

  • Page 8: Loading Motor / Worm

    DISASSEMBLY INSTRUCTIONS 2-6: LOADING MOT OR/WORM (Refer to Fig. 2-6-A) 2-7: TENSION ASS’Y (Refer to Fig. 2-7-B) Remove the screw 1. Turn the Pinch Roller Cam clockwise so that the Tension Remove the Loading Motor. Holder hook is set to the position of Fig. 2-7-A to move Remove the Worm.

  • Page 9: S Reel / T Reel / Idler Arm Ass'y / Idler Gear

    DISASSEMBLY INSTRUCTIONS NOTE [OK] Tension Connect Take care not to damage the gears of the S Reel and T Reel. Tension Band The Polyslider Washer may be remained on the back of the reel. [NG] Tension Connect Tension Band Take care not to damage the shaft. Do not touch the section “A”...

  • Page 10: A/C Head

    DISASSEMBLY INSTRUCTIONS 2-10: CASSETTE OPENER/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. Cassette Opener Spring Position Fig. 2-11-B Pinch Roller Block 2-12: FE HEAD (RECORDER ONLY) (Refer to Fig.

  • Page 11: Capstan Dd Unit

    DISASSEMBLY INSTRUCTIONS 2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14-A) 2-15: MAIN CAM/PINCH ROLLER CAM/JOINT GEAR (Refer to Fig. 2-15-A) Remove the Capstan Belt. Remove the 3 screws 1. Remove the E-Ring 1, then remove the Main Cam. Remove the E-Ring 2, then remove the Pinch Roller Remove the Capstan DD Unit.

  • Page 12: Clutch Ass'y / Ring Spring / Clutch Lever / Clutch Gear

    DISASSEMBLY INSTRUCTIONS NOTE 2-18: CASSETTE GUIDE POST/INCLINED BASE S/T UNIT/P4 CAP (Refer to Fig. 2-18-A) 1. When you install the Loading Arm S Unit, Loading Arm T Unit and Main Loading Gear, align each marker. (Refer Remove the P4 Cap. Unlock the support 1 and remove the Cassette Guide to Fig.

  • Page 13: Removal And Installation Of Flat Package Ic

    DISASSEMBLY INSTRUCTIONS 3. REMOVAL AND INSTALLATION OF FLAT 3. When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using PACKAGE IC a tweezers and remove the IC by moving with the IC REMOVAL desoldering machine.

  • Page 14: Installation

    DISASSEMBLY INSTRUCTIONS INSTALLATION 4. When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- 1. Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 3-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.

  • Page 15: Key To Abbreviations

    KEY TO ABBREVIATIONS Audio/Control H.SW Head Switch Automatic Color Control Hertz Audio Erase Integrated Circuit Automatic Frequency Control Intermediate Frequency Automatic Fine Tuning Indicator AFT DET Automatic Fine Tuning Detect Inverter Automatic Gain Control Killer Amplifier Left Antenna Light Emitting Diode A.PB Audio Playback LIMIT AMP...
  • Page 16 KEY TO ABBREVIATIONS SYNC Synchronization SYNC SEP Sync Separator, Separation Transistor TRAC Tracking TRICK PB Trick Playback Test Point UNREG Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse, Voltage Display V . PB Video Playback Variable Resistor V.REC Video Recording Visual Search Fast Forward Visual Search Rewind...

  • Page 17: Service Mode List

    If "N" is always being displayed on the TV monitor, can not control from provided remote controller since this product is other brand format. • How to return a JVC format. Turn off the power of the set and push the CHANNEL+ button and the REC button of the set simultaneously.

  • Page 18: When Replacing Eeprom(Memory) Ic

    WHEN REPLACING EEPROM (MEMORY) IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. NOTE: No need setting for after INI 2F. ADDRESS DATA INIT 00 0E PLAY/REC...

  • Page 19: Preventive Checks And Service Intervals

    PREVENTIVE CHECKS AND SERVICE INTERVALS The following standard table depends on environmental conditions and usage. Parts replacing time does not mean the life span for individual parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. The following list means standard hours, so the checking hours depends on the conditions.

  • Page 20: Servicing Fixtures And Tools

    SERVICING FIXTURES AND TOOLS (4 heads model) Torque Gauge Roller Driver X-JG153 X Value Adjustment VHS Alignment Tape PUJ48075-2 PTU94002-2 Screwdriver Torque Tape Short Jumper MECHANISM ADJUSTMENT PARTS LOCATION GUIDE Tension Connect Tension Arm Guide Roller Audio/Control Head X value adjustment driver hole P4 Post T Brake Spring T Reel...

  • Page 21: Mechanical Adjustment

    MECHANICAL ADJUSTMENTS TAPE REMOVAL METHOD AT NO POWER 1. CONFIRMATION AND ADJUSTMENT SUPPLY Read the following NOTES before starting work. Remove the Top Cabinet, Front Cabinet and DVD Block. • Place an object which weighs between 450g~500g on the (Refer to item 1 of the DISASSEMBLY INSTRUCTIONS.) Cassette Tape to keep it steady when you want to make Remove the screw 1 of the Deck Chassis and remove the the tape run without the Cassette Holder.

  • Page 22: Confirmation Of Reel Brake Torque

    MECHANICAL ADJUSTMENTS 1-4: CONFIRMATION OF REEL BRAKE TORQUE 2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM (S Reel Brake) (Refer to Fig. 1-2-B) Once set to the Fast Forward mode then set to the Stop Tape Running Mechanism is adjusted precisely at the mode.

  • Page 23: Confirmation And Adjustment Of Audio/Control Head

    MECHANICAL ADJUSTMENTS 2-2: CONFIRMATION AND ADJUSTMENT OF AUDIO/ 2-3: TAPE RUNNING ADJUSTMENT CONTROL HEAD (X VALUE ADJUSTMENT) When the Tape Running Mechanism does not work well, Confirm and adjust the position of the Tension Post. adjust the following items. (Refer to item 1-1) Adjust the Guide Roller.

  • Page 24: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS Read and perform this adjustment when repairing the circuits or replacing electrical parts or PCB assemblies. CH-2 1. BASIC ADJUSTMENT CAUTION When you exchange IC and Transistor for a heat sink, apply the silicon grease (YG6260M) on the contact section of the heat sink.

  • Page 25: Ic Descriptions

    IC DESCRIPTIONS VCR/DVD PCB OEC0132A (IC3001) PORT PIN NAME DESCRIPRION SVSS SVSS Ground. CTL_REF CTL_REF Output terminal for CTL amp REF (1/2 SVCC) CTL-H(+) CTL-H(+) Input and output terminal of Control Head. CTL-H(-) CTL-H(-) Input terminal of Control Head. CTL_BIAS CTL_BIAS Output terminal for bias.
  • Page 26 IC DESCRIPTIONS VCR/DVD PCB OEC0132A (IC3001) P13/IRQ3 REEL-S Input terminal of reel sensor supply. P14/IRQ4 REEL-T Input terminal of reel sensor take up. P15/IRQ5 POWER ON-H OUT For control the user power switch ON/OFF. P16/IC REM_IN Receive the remote control signal. P17/TMOW DVD RESET OUT For control the DVD RESET.
  • Page 27 IC DESCRIPTIONS VCR/DVD PCB OEC0132A (IC3001) Ground. OSC2 OSC2 OUT Connect the main crystal(10MHz) Connect the capacitor FZTAT Write MODE. P34/PWM2 OUT not used. P33/PWM1 CAP_LIMIT OUT Switch the maximum output current of the Capstan Motor. P32/PWM0 TUNER AUDIO MUTE-H OUT Output low at tuner and output high at external input/play.

  • Page 28: Servo Timing Chart

    SERVO TIMING CHART VCR/DVD PCB IC3001 (OEC0132A) DPG 104 PIN DFG 104 PIN 24 Cycle CH 1 CH 2 H. SW. P 105 PIN V-SYNC (E-E) 111 PIN REC CTL (REC) 7 PIN V-SYNC (TRICK PB) 109 PIN • WAVEFORM CHANGES DEPENDED ON THE TAPE SPEED 1-24...

  • Page 29: Mechanism Timing Chart

    MECHANISM TIMING CHART Please see the list below for the operational timing and the mode sensor output of the main parts on each mechanism modes. MECHANISM MODE EJECT STBY UNLOAD STOP3 F.SLOW STOP2 FF/REW Mode Dealing Directions Revolutional Angle of 206.3 226.4 272.2...

  • Page 30: Troubleshooting Guide

    TROUBLESHOOTING GUIDE (VCR SECTION) POWER DOES NOT TURN ON Is the voltage Check of T501 Does display light? linked to L506? and peripheral circuit. Check of V651 and peripheral circuit. Is the voltage at Check IC3001. pin 30 of IC 3001 Check of T501 and peripheral circuit.

  • Page 31: Troubleshooting Guide

    TROUBLESHOOTING GUIDE THE POWER SUPPLY CUT Inserting a casette and push play button. Does the power cut Check CAPSTAN DD UNIT after 3 seconds? and CYLINDER UNIT. Does the power cut Check Q3006,Q3008 after about 6 seconds? and CAPSTAN BELT. Check the POWER BLOCK.
  • Page 32 TROUBLESHOOTING GUIDE AUDIO SHAKES Is AUDIO HEAD Change AUDIO HEAD. scratched? At playback,is input about Change CAPSTAN DD UNIT. 4.5Vp-p of a rectangular wave at pin 9 of IC3001? At playback,is pin 32 of Check IC3001. CP3001 3.5V? Check AUDIO BLOCK. 1-28...
  • Page 33 TROUBLESHOOTING GUIDE The CASSETTE TAPE CAN NOT BE INSERTED Does WORM GEAR of Check WORM GEAR cassette loading block of cassette loading block. move? When a CASSETTE can Check LED of DECK, not inserted, is pin 25 of PHOTO SENSOR. IC3001 5V ? When a CASSETTE is Change...
  • Page 34 TROUBLESHOOTING GUIDE CAN NOT FF/REW At FF/REW, does voltage Check of IC3001. at pin98 of IC3001 change? Check DECK MECHANISM. WHEN INSERTING A CASSETTE, IT EJECTS IMMEDIATELY Defective CASSETTE Does another CASSETTE or cassette loading block. insert? Does SW3001 and Correctly SW3001 REC LEVER and REC LEVER set.
  • Page 35 TROUBLESHOOTING GUIDE TAPE LOADING IS OK, BUT UNLOADS IMMEDIATELY Is the voltage Does CYLINDER at pin 2 of CP3001 Check POWER BLOCK. rotate? 12V ? At play, is the voltage at pin 12 of CP3001 2.6V ? Change CYLINDER unit. Is PG PULSE signal Is there HEAD SW inputted to pin 104...
  • Page 36 TROUBLESHOOTING GUIDE AT PLAY, THE PICTURE JITTERS VERTICAL MINUTELY Is FG wave of CP3001 Change at pin 11 5V ? CYLINDER MOTOR. Change IC3001. Is pin 12 of CP3001 2.6V ? Change CYLINDER MOTOR. AUTO TRACKING DOES NOT OPERATE Does the CTL pulse In auto tracking, is the signal (about 2.5Vp-p) Check CONTROL HEAD.
  • Page 37 TROUBLESHOOTING GUIDE WHEN PLAYBACK, FF OR REW MODE IS ACTIVE, UNIT STOPS IMMEDIATELY Refer to section "CAPSTAN Does CAPSTAN DD DD MOTOR NOT MOTOR rotate? ROTAING". Is there REEL SENSOR PULSE signal at pin 40 Check Q3001 and Q3002. and pin 41 of IC3001. Change IC3001.
  • Page 38 TROUBLESHOOTING GUIDE AT PLAY, PICTURE JITTERS HORIZONTALLY Does a noise on the picture appear? By adjusting the MANUAL TRACKING UP/DOWN Check P/B ENVELOPE. BUTTONS, will the line disappear? The height of GUIDE POST Is a height of GUIDE POST readjust. maximum? Is PG SHIFTER Adjust PG SHIFTER.
  • Page 39 TROUBLESHOOTING GUIDE AT PLAYBACK, THE PICTUER DOES NOT APPEAR Is the voltage of IC101 at Does E-E picture Check POWER BLOCK. pin 44, 45, 52 and 68 5V? appear? Is there video signal Change IC101. of IC101 at pin 26? Is there video signal Change IC8005.
  • Page 40 TROUBLESHOOTING GUIDE AT PLAYBACK, THE COLER DOES NOT APPEAR Is there color signal in Is there video signal at pin Change X'tal. video signal at pin 26 of 26 of IC101. IC101. Change IC101. NO COLER DURING SELF RECORDING AND PLAYBACK Check TU301, J8003, Is there CHROMA signal at circuit around it.
  • Page 41 TROUBLESHOOTING GUIDE AT PLAYBACK AND RECORDING, CYLINDER MOTOR UNLOAD Is the voltage at pin 8 of Check IC502. CP3001 about DC12.6V? In playback,is at pin 12 of Check IC3001. CP3001 about DC2.6V? Check the DECK BLOCK. PLAYBACK PICTURE IS NOISY (EVEN AFTER CLEANING HEADS) Is noisy a wave of video Check CYLINDER.
  • Page 42 TROUBLESHOOTING GUIDE AT PLAY, AUDIO DOES NOT APPEAR Refer to section"E-E DOES At E-E, does audio appear? NOT APPEAR". Is the voltage at pin 6 of Check A/C HEAD. IC101 about 2.5V? Check circuit around at pin Is there audio signal at pin 10 of IC101.
  • Page 43 TROUBLESHOOTING GUIDE THE AUDIO CAN NOT RECORD In starting recording, Check POWER BLOCK and is there sine wave at Is bias level at L101 OK? voltage of base of Q103. pin 11 of IC101? Check disconnection and short of L101. Check IC701 and Is there audio signal at the circuit from TUNER...
  • Page 44 TROUBLESHOOTING GUIDE THE CASSETTE INSERT, BUT THE TAPE DOES NOT MOVE Check LOADING MOTOR and Does the mode MODE SENSOR appear at display? RELATION DEPARTMENT. Does operate with Check IC3001. remote control? Check operation PCB. CAPSTAN DD MOTOR NOT ROTATING In playback,is there voltage at Check POWER BLOCK.
  • Page 45 TROUBLESHOOTING GUIDE RECORDING MECHANISM WORKS, BUT NO VIDEO RECORD FROM INPUT JACK OR TUNER Check cricuit of video signal from Is there video signal at VIDEO IN or pin 30, 32 of IC 101? TUNER to IC101. Is the voltage at pin 96 Is the BASE of Change IC3001.
  • Page 46 TROUBLESHOOTING GUIDE E-E DOES NOT APPEAR (THE PICTURE DOES NOT APPEAR FROM TUNER) Does normality AUDIO JACK Connection is done over again. CONNECT? Are there thevoltage Check POWER BLOCK. of +B(5V),TU(32V) of TU301? Check the picture. Is there video signal at Change TU301.
  • Page 47 TROUBLESHOOTING GUIDE E-E AUDIO (MONO) DOES NOT APPEAR Refer to section "E-E AUDIO Does E-E AUDIO (STEREO) DOES NOT APPEAR". (STEREO) appear? Is the voltage at pin 7 Check POWER BLOCK. of IC101 5V? Is the voltage at pin 95 of Change IC3001.
  • Page 48 TROUBLESHOOTING GUIDE E-E AUDIO (STEREO) DOES NOT APPEAR Is the voltage at pin Check POWER BLOCK. 25,40,51 of IC701 5V? Is the voltage at pin Check POWER BLOCK. 58 of IC701 12V? Is there Audio signal at Check J8004, J8005. pin 10, 15 of IC701? Is there Audio signal at Change IC701.
  • Page 49 TROUBLESHOOTING GUIDE TUNER AUDIO (MONO) DOES NOT APPEAR Refer to section "E-E AUDIO Does E-E AUDIO (MONO) DOES NOT APPEAR". (MONO) appear? Check circuit around of TU301 Is there signal at pin at pin 15. 48 of IC701? Is there audio signal at Change IC701.
  • Page 50 TROUBLESHOOTING GUIDE TUNER AUDIO (STEREO) DOES NOT APPEAR Does TUNER AUDIO Refer to section "TUNER AUDIO (MONO) appear? (MONO) DOES NOT APPEAR". Does E-E AUDIO Refer to section "E-E AUDIO (STEREO) DOES NOT APPEAR". (STEREO) appear? At the time of channel Change IC701.
  • Page 51 TROUBLESHOOTING GUIDE PB AUDIO (Hi-Fi) DOES NOT APPEAR Does E-E AUDIO Refer to section "E-E AUDIO (STEREO) appear? (STEREO) DOES NOT APPEAR". Refer to section "AT PLAY, Does NORMAL PB AUDIO DOES NOT APPEAR". AUDIO appear? Check circuit of HEAD AMP Is there audio signal at and CYLINDER UNIT.
  • Page 52 TROUBLESHOOTING GUIDE Hi-Fi AUDIO CAN NOT RECORD Refer to section "E-E AUDIO Does E-E AUDIO appear? (MONO) DOES NOT APPEAR". AT state of video recording, Check circuit arounf of J8004, is there audio signal at J8005 and TU301. pin 10 and 15 of IC701? Is there audio signal at Change IC701.

  • Page 53: (Dvd Section)

    TROUBLESHOOTING GUIDE (DVD SECTION) DECK DOES NOT ACCEPT OPEN/CLOSE Is the voltage at pin 3 and Check P.CON 9V line of 14 of IC2301 about DC9V ? POWER BLOCK. Is the lose connection Check CD2301 & CD2302 at CD2301 & CD2302 to connection to DECK.
  • Page 54 TROUBLESHOOTING GUIDE NO PLAYBACK PICTURE OF AV JACK Is there VIDEO signal Check IC8005 and peripheral at pin 170 of IC4001 ? circuit. Check IC2001 and peripheral Is the waveform at pins circuit. 19~23 of IC4001 ? Change IC4001. NO PLAYBACK PICTURE OF S-VIDEO JACK Is there Y signal at Check J8006 and peripheral...
  • Page 55 TROUBLESHOOTING GUIDE NO COLOR PLAYBACK PICTURE OF S-VIDEO JACK Check J8006 and peripheral Is there C signal at circuit. pin 173 of IC4001 ? REFER TO "NO PLAYBACK Is there Y signal at PICTURE OF S-VIDEO JACK". pin 172 of IC4001? Is there VIDEO signal REFER TO "NO PLAYBACK at pin 170 of IC4001?
  • Page 56 TROUBLESHOOTING GUIDE NO AUDIO ON PLAYBACK Check ic8003 and Is there AUDIO signal at peripheral circuit. pin 1 and 7 of IC8003 ? Check IC8004 and peripheral Is there waveform at pin circuit. 7 and 8 of IC8004? Check IC2001 and peripheral When DVD Playback , Is circuit.
  • Page 57 <Reference> SEMICONDUCTOR BASE CONNECTIONS DIODE CATHODE ANODE 1SS133T-77 10ELS6N-TA1B2 1N4005-EIC KDS120RTK MCL4148 LTE-3271T-012A-O MTZJ13B T-77 21DQ09N-TA2B1 KDS121RTK LTL-1CHGT-002A MTZJ27B T-77 RGP15J-G23 MTZJ3.0B T-77 RM11C-EIC MTZJ33B T-77 MTZJ5.1B T-77 MTZJ6.8B T-77 MTZJ9.1B T-77 SARS01-V1 AN3663FBP LA6560 S-24C02BDP-1A BA10358F-E2 PQ1X251M2ZP KIA431 LA71206M-MPB M11L416256SA-35T S-24C04BFJ-TB NJM2533V(TE2) PS2561L1-1-V(W) LA9703WL...
  • Page 58 <Reference> GENERAL SPECIFICATIONS [HR-XVC20US] Outline of the product DVD VIDEO PLAYER & VHS Player / Recorder DVD System Color System NTSC Disc DVD, CD-DA, CD-R/RW, VIDEO CD Disc Diameter Disc Diameter 120 mm , 80 mm Deck Disc Loading System...
  • Page 59 <Reference> GENERAL SPECIFICATIONS [HR-XVC20US] Signal Video Signal Output Level 1 V p-p/75 ohm (DVD,VCR) S/N Ratio (Weighted) 65 dB(DVD) 50 dB(VCR) Horizontal Resolution 500 Lines (DVD) 230 Lines(VCR Mode) RGB Signal Output Level Audio Signal Input Level Microphone Input Level Line -8 dBm/ 50k ohm(VCR) -8 dBm/ 1k ohm (VCR, 0dB=0.775Vrms)
  • Page 60 <Reference> GENERAL SPECIFICATIONS [HR-XVC20US] On Screen Menu Display(VCR) Menu Type Character Timer Rec Set Auto Repeat On/Off SAP On/Off CH Set-Up TV/CATV Auto CH Memory Add/Delete System Set Up Clock Set Yes (Calendar 12H) Language No Noise Back Ground Auto Clock...
  • Page 61 <Reference> GENERAL SPECIFICATIONS [HR-XVC20US] G-14 Remote Unit RC-GA Control Glow in Dark Remocon Format Custom Code 43,53,6F,7F Power Source Voltage(D.C) UM size x pcs UM-3 x 2 pcs Total Keys 50 Keys Keys Power DISPLAY/CALL UP/CH+ DOWN/CH- LEFT/ SET- / TRACKING- / VOL-...
  • Page 62 <Reference> GENERAL SPECIFICATIONS [HR-XVC20US] G-15 Features Auto Power Off (DVD) Parental Lock Echo Mic Mixing Video CD Playback MP3 Playback WMA Playback JPEG Playback Digital Out Dolby Digital MPEG Down Mix Out (Dolby Digital) (DTS) Spatializer (N-2-2) Screen Saver Auto Stop...
  • Page 63 <Reference> GENERAL SPECIFICATIONS [HR-XVC20US] G-17 Interface Switch Front Power Play Eject (VCR) Stop Rec/OTR Open/Close (DVD) CH + CH - FF/ Search(>>) Rew/Search(<<) Still/Pause Shuttle (Search/REV/FWD) DVD/VCR Main Power SW Rear Attenuator S-Video/Component Video Selector RF Out (Slide SW) Main Power SW...
  • Page 64 JVC SERVICE & ENGINEERING COMPANY OF AMERICA DIVISION OF JVC AMERICAS CORP. www.jvcservice.com(US Only) JVC CANADA INC. Head office : 21 Finchdene Square Scarborough, Ontario M1X 1A7 (416)293-1311 Printed in Japan 0212 VP...
  • Page 65 SCHEMATIC DIAGRAMS DVD/CD PLAYER Hi-Fi STEREO VIDEO CASSETTE RECORDER HR-XVC20U HR-XVC21U CD-ROM No.SML200301 SPECIFICATIONS (The specifications shown pertain specifically to the model HR-XVC20US.) GENERAL DVD section Power supply: AC 120V 60Hz Signal system: NTSC Power consumption: Operation: 16W Applicable disc:...
  • Page 66 SECT CHARTS AN INTERCONNEC H NC FRONT AV JACK FRONT AV JACK FRONT AV JACK VIDEO AUDIO IN L AUDIO IN R J8004 J8005 JJ8003 CD2601 CP2601 GND-LD GND-LD LD-DVD LD-DVD LD-CD LD-CD DRIVE VR-DVD VR-DVD VR-CD VR-CD (LD-CD) (LD-CD) OPTICAL PICK-UP MD(NC) MD(NC)

  • Page 67: Interconnection Diagram

    ECTION 2 AND DIAGRAMS ECTION DIAGRAM OPERATION PCB FULL ERASE HEAD ASS’Y PCB270 VEBA07 COMMAND TRANSMITTER TM601 HALL MAIN ROTOR SENSOR COIL MAGNET FG SENSOR OS601 Vout HALL HALL SWITCH LOGIC CAP FG CP3001 CAP VCO CAP.M/F/R I LIMIT MOTOR GND LD/CY VCO CAP CTL CAPSTAN DD UNIT...
  • Page 68 Y/C/AUDIO/CCD/HEAD AMP (VCR/DVD P R129 1.8K FROM/TO POWER P.CON+5V FROM/TO HI-FI/DEMODULATOR TO_NORMAL_A FROM_NORMAL_A HF_COM C166 COMP AUDIO C-ROT C-GND C-VCC SERAIL KILL MUTE RF-SW 320FH VX01 0.068 B HA SW DECODER A.VCC C169 CHROMA 0.047 F C165 BEFORE 0.047 F FROM/TO CYL AFTER CP101...
  • Page 69 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. MP SCHEMATIC DIAGRAM D PCB) BUFFER FROM/TO AUDIO/VIDEO Q109 KTC3875S_Y_RTK DVD_V_OUT[DAC_D] FROM/TO TUNER/JACK C142 FRONT_V_IN...
  • Page 70 VCR SYSCON SCHEMATIC DIAG AT+5V[M-CON] AT+5.2V FROM/TO POWER C3025 C3047 DVD_POWER_CTL 18P CH 15P CH AT+12.6_V X3001 10MHz P.CON+5V AT+5V[M-CON] 100BT01004 VCR_POWER_ON-L R3034 POWER_FAIL AT+5.2V R3057 CAP_LIMIT MOTOR_GND 5.1 3.4 2.5 0 5.1 1.4 1.5 TU_A_MUTE-H TV/VCR POWER_MUTE-L C3033_1 FROM/TO DECK SYS_MUTE SYS MUTE FL CLK/VSC CLK...
  • Page 71 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. AGRAM (VCR/DVD PCB) TP3002 H.SW FROM/TO Y/C/AUDIO/CCD/H.AMP DUMMY_V.SYNC RX DRIVE C.SYNC Q3003 V.REC_ST-H KRA103SRTK...
  • Page 72 TUNER/JACK SCHEMATIC DIAG RF MUTE SW Q301 REAR OUT JACK KTC3875S_Y_RTK TU301 J8001 115-V-H015AR MSP-213V1-432_PBSN D AUDIO C315 R304 C318 RF_CONV_A_OUT DRIVER A.IN Q8001 J8007 KTA1504S_Y_RTK RF_CH_SW DVD AUDIO OUT R8004 L301 MSP-213V1-732_PB P.CON+5V 22uH 0305 TV/VCR CONTROL D AUDIO DRIVER R302 Q8002...
  • Page 73 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. (VCR/DVD PCB) AGRAM COMPONENT OUT J8008 MSP-213V1-652_PBSN OPT TRNSFORMER OS8001 GP1FA553TZ S/CVBS COMP FROM/TO AUDIO/VIDEO...
  • Page 74 OPERATION/DISPLAY S (VCR/DVD V651 ELF-4M6SDRVGWB SEG1 SW Q664 KRC103SRTK R674 1G SW Q665 KTA1504S_Y_RTK SEG2 SW Q663 KRC103SRTK R673 SEG3 SW Q662 KRC103SRTK R672 2G SW Q661 KTA1504S_Y_RTK SEG4 SW Q660 KRC103SRTK R670 SEG5 SW Q658 KRC103SRTK R668 3G SW Q659 KTA1504S_Y_RTK SEG6 SW...

  • Page 75: Schematic Diagram

    The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. Y SCHEMATIC DIAGRAM DVD PCB) RVGWB (ELF-4M6SDRSOWB) FROM/TO SYSCON DVD_LED VCR_LED 1G/VCR/T-REC_LED 2G/DUB/REC_LED 3G/TV/VCR_LED...

  • Page 76: Hi-Fi/Demodulator Schematic Diagram

    HI-FI/DEMODULATOR SCHEMATIC DIAG C744 0.1 F C743 R716 3.3K 0.22 HI-FI/AUDIO/HEAD AMP/DEM IC R717 IC701 AN3663FBP 2.2M C746 DEM_BLK LOGIC C747 C751 4.5M 95HMz MUTE VCO TRAP DEMOD L702_1 P.CON+5V 3.5M COMP 22uH 0305 C748 C749 MAIN LOGIC SW21 DEEN DEMOD 0.1 F C752...
  • Page 77 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. (VCR/DVD PCB) IAGRAM FROM/TO TUNER/JACK FRONT_A_IN_R FRONT_A_IN_L SIF_OUT RF_CONV_A_OUT AUDIO_OUT_L AUDIO_OUT_R C730 0.015 B ZZ-PROM...
  • Page 78 POWER SCHEM (VCR/DVD D506 RM11C-EIC D503 D507 RM11C-EIC RGP15J L502 C531 500V 560P W5T_20*10*10A D502 RM11C-EIC WHITE S502 F501 51MS025L D505 C516 BLACK S501 AC120V_60HZ RM11C-EIC 250V 0.0047 L501 CD501_4 FH501 FH502 0R4A223F20 0R415907 EYF-52BC EYF-52BC T501 2.5A 125V 81260074 139.3 D536 D537...
  • Page 79 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. EMATIC DIAGRAM FROM/TO Y/C/AUDIO/CCD/H.AMP P.CON+5V VD PCB) FROM/TO SYSCON AT+5.2V DVD_POWER_CTL VCR_POWER_ON-L POWER_FAIL AT+5V[M-CON]...
  • Page 80 MPEG/MICON SCHEMATIC DIAGRAM C4071 P.CON+A5V 0.01 B IC4003 R4001 4.7K R4002 EEPROM V_IN 4.7K FROM/TO TUNER/JACK R4056 V_SW 4.7K R4016 R4055 4.7K FROM/TO AUDIO/VIDEO 4.7K DAC_C_VIDEO DAC_B_VIDEO B4001 DAC_D_VIDEO FCM2012H-102T04 DAC_A_VIDEO CD/DVD SPDIF-DVD ASDATA0 ABCLK C4041 ALRCLK AMCLK C4006 R4008 D_GND JG4005 NC NC...
  • Page 81 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. (VCR/DVD PCB) PQ070XZ01ZP FROM/TO POWER REG+1.8V V_OUT V_ADJ GND L4001 P.CON+A5V 2.2uH 0305 P.CON+5V_DH P.CON+3.3V...
  • Page 82 MEMORY SCHEMA (VCR/DVD PC S-DRAM IC4005 MSM56V16160F-8 FROM/TO MPEG/MICON C4051 0.1 F MEMCS0 SD_D15 SD_D0 I/O15 I/O0 SD_D14 SD_D1 I/O14 I/O1 HD10 HD11 HD12 VSSQ VSSQ HD13 HD14 HD15 SD_D13 SD_D2 I/O13 I/O2 SD_D12 SD_D3 I/O12 I/O3 C4048 C4053 VCCQ VCCQ 0.1 F 0.1 F...
  • Page 83 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. MATIC DIAGRAM PCB) FLASH IC4007 SST39VF800A-70-4C-EK HA16 HA15 HA14 HA13 HD15 HA12 DQ15 HA11...

  • Page 84: Dsp Schematic Diagram

    DSP SCHEMATIC DIAGRAM DRAM IC2002 M11L416256SA-35T C2032 16.9 4P CH FROM/TO READ CANNEL C2054 LDON1 LDON2 10P CH XHTR ADRREC ADPH ADBH ADTE R2004 6.8K ADFE ADJV ADRREC RREC ADPH RF_PH DVDD0 ADBH FOST RF_BH TOST ADTE DVSS ADFE DVDD2 TBAL TEST0 DVDD0...
  • Page 85 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. (VCR/DVD PCB) C2047 R2036 0.001 R2034 4.7K +IN1 -IN1 OUT1 DUAL OP-AMP +IN2 -IN2 OUT2...
  • Page 86 MOTOR DRV SCHE (VCR/DVD PC FROM/TO READ CNANNEL P.CON+9V R2317 MOTOR DRIVE IC2301 LA6560 C2309_1 S-GND R2321 VCONT C2310 VCC2 MUTE R2319 VLD- VIN4 R2322 VLD+ VIN4- VD4+ VIN4+ FROM/TO LOADER VD4- VREF-IN HS2301 2H081301 763WSA0022 VD3+ VIN1-SW CD2301 1.0mm FFC VD3- VREF-OUT 1.0mm RA...
  • Page 87 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. HEMATIC DIAGRAM PCB) CLOSE OPEN FROM/TO AUDIO/VIDEO D_GND FROM/TO POWER P.CON+9V P.CON+3.3V DMUTE W803...
  • Page 88 READ CHANNEL SCHEM (VCR/DVD PC C2618 DVD LOADER 56P CH C2619 DK4001 47P CH DVD-KDR777SL R2645 R2647 R2648 R2652 3.3K CD2601 0.5mm FFC 2H0O2303 0.5mm RH 2.6 2.5 CP2601 09-5000-024-001 C2605 PDRF RF(NC) C2614 56P CH 0.1 F C2615 56P CH TIN2 C2616 56P CH GND-PD...
  • Page 89 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. EMATIC DIAGRAM PCB) FROM/TO DSP ADPH ADBH R2652 ADTE R2661 ADFE 6.8K ADRREC R2666...
  • Page 90 AUDIO/VIDEO SHEMAT (VCR/DVD PCB) L8005 1.8uH C8012 R8060 S802X DAC_D_VIDEO 22P CH 22 1/4W W848 W863 W865 FROM/TO POWER L8006 D_GND 1.8uH P.CON+3.3V C8028 P.CON+12V DAC_A_VIDEO AT+5.2V 22P CH P.CON+5V_DH FROM/TO MPEG/MICON L8010 1.8uH CD/DVD C8063 SPDIF-DVD DAC_C_VIDEO AMCLK 22P CH ABCLK ALRCLK ASDATA0...
  • Page 91 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. ATIC DIAGRAM S802X S802Y DVD_V_OUT[DAC_D] DVD_Y_VIDEO[DAC_A] DVD_U[DAC_C] DVD_V[DAC_B] R8046 FROM/TO HI-FI/DEMODULATOR DVD_A_OUT_L C8061 R8027...
  • Page 92 OPERATION SCHEM (OPERATION P (OPERATION P R685 R686 R687 R688 13K 1/4W 6.8K 1/4W 3.9K 1/4W 2.7K 1/4W 3.3K 3.9K PCB270 VEBA07 NOTE:THE DC VOLTAGE EACH PART WAS MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK. 2-27...
  • Page 93 The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. EMATIC DIAGRAM N PCB) N PCB) DVD LED D685 R689 3.3K 1/4W LTL-1CHGT-002A FROM/TO OPERATION/DISPLAY...

  • Page 94: Printed Circuit Board Operation

    PRINTED CIRCUIT BOARDS OPERATION SOLDER SIDE SW690 SW686 R690 R685 R686 SW689 SW685 R688 R687 SW687 SW688 R689 CP681 2-29...
  • Page 95 COMPONENT PARTS LOCATION GUIDE <VCR/DVD> VMB282A REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. CAPACITOR C735 C3019 C8052 L101 R129 R2310 R4013 B2602 C101_1 C736 C3020 C8053 L102 R131 R2311 R4014 B4001...
  • Page 96 PRINTED CIRCUIT B VCR/DVD (TOP S SW7001 OS8001 J8006 J8008 S801Y R8004 J8001 J8007 R8028 L8007 L8003 C8046 TP8001 Q8006 L8001 Q8005 Q8007 Q503 L8002 Q8004 R302 Q504 R8049 C8041 R8009 R8042 R8054 R514 IC8003 R544 R8039 R8041 R8069 CP102 CP101 W001 R103...
  • Page 97 CAUTION : T BOARDS FOR CONTINUED PROTECTION AGAINST FIRE HAZARD , REPLACE ONLY WITH SAME TYPE AND RATED FUSE ( S ) . ATTENTION : P SIDE) REPLACER PAR DES FUSIBLE DE MEME TYPE. DANGEROUS VOLTAGE D535 IC501 D532 D534 8008 IC502 D513...
  • Page 98 PRINTED CIRCU VCR/DVD (BOT R8019 C8099 C3014 IC3003 C3050 C3025 C3024 R3049 R3019 C3022 R3030 IC8005 C3027 C3001 C3006 R3004 R3007 C3010 S802Y C106 R143 R107 R108 Q103 C4043 C134 Q109 C4027 Q107 C744 C4024 R129 R132 R127 R716 C4018 R131 C4017 C145...
  • Page 99 CUIT BOARDS OTTOM SIDE) R672 R673 Q661 Q652 Q653 Q666 Q655 Q656 Q657 Q658 Q665 Q663 Q662 Q660 R674 Q664 C2310 R2321 R661 Q651 Q659 Q654 R664 C2049 R3083 R3087 R2312 R2314 R2311 C2304 W860 C2601 C2027 C2009 B2601 R2659 R2665 C4026 B4003...

  • Page 100: Waveforms

    WAVEFORMS MPEG/MICON READ CHANNEL 200ns 1.0V 200mV 100mV 200ns 20ns 200ms 500mV 200mV 500mV MEMORY AUDIO/VIDEO 500µs 500us 5µs 500mV 1.0V VCR SYSCON 20ns 500us 1.0V 1.0V 1.0V Y/C/AUDIO/CCD/HEAD AMP 20ns 10µs 200µs 500mV 500mV 1.0V POWER ON 20ns 50ns 1.0V 100ns 1.0V...
  • Page 101 WAVEFORMS 10µs 5µs 500µs 200mV 5.0V 1.0V 10µs 200mV 500mV 10µs 200mV 2.0V HI-FI/DEMODULATOR 500ns 10ms 100mV 1.0V TUNER/JACK 10µs 500ns 200mV 1.0V POWER 10µs 5µs 200mV 500mV NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram. 2-36...
  • Page 102 DVD BLOCK REG+2.5V 2.5V IC2004 EDO DRAM PQ1X251M2ZP IC2002 M11L416256SA X2001 16.9344MHz A, C MD0~15 DATA MA0~8 DATA ADFE, TE, PH, BH DVD LOADER HD0~7 REN/P, WO, TEC A, B, C, D, E, F RF AMP DSP/SERVO LDON1, LDON2 AVD0~7 Pickup IC2601 CD, DVD, LD...
  • Page 103 CK DIAGRAM FLASH 8M SDRAM IC4007 IC4005 SST39VF800A VCR BLOCK VIDEO SW X4001 CVBS SW7001 27MHz DVD_Y SK42H0IG9A DVD_U DAC_A, B, C, D OUT DVD_V MPEG Decoder W/Video Encoder CPU_RESET W/uCOM IC4001 AUDIO L ZR36742(Vaddis 5E) AUDIO L A, B ASDATA0 SPDIF AMCLK...
  • Page 104 Y/C/AUDIO/CCD/HEAD AM X101 3.578545M Hz Q109 BUFFER Y/C/AUDIO/CCD/HEAD AMP IC IC101 LA71205M-MPB PULL VX01 TIMMING DRIVER H.SW FM-EQ CP101 C-LPF EP/LP-CH2 (L) EP/LP_COM EP/LP-CH1 (R) H.AMP B-UP Main SP-CH2 (L) CONV SP_COM SP-CH1 (R) HF2 (L) DELAY HF_COM B.D. HF1 (R) H.SW FM-EQ DOUBLE...
  • Page 105 AMP BLOCK DIAGRAM AUDIO SIGNAL(REC) AUDIO SIGNAL (PB) PLAYBACK COLOR SIGNAL PLAYBACK LUMINANCE SIGNAL RECORD COLOR SIGNAL RECORD LUMINANCE SIGNAL Q107 TUNER VIDEO SIGNAL BUFFER Y/C_CS SERIAL SYSCON Y/C_DATA CLAMP DECODER Y/C_CLK DETAL EMPHA CLAMP CONV Y-LPF 3.58M YNR/ BPF2 COMB CLAMP N.L.
  • Page 106 SYSTEM CONTR PLAYBACK COLOR SIGNAL PLAYBACK LUMINANCE SIGNAL RECORD COLOR SIGNAL RECORD LUMINANCE SIGNAL SYSCON/TIMER/SER IC3001 OEC0132A DVD_POWER_CTL DVD_POWER_CTL VCR_POWER_ON-L POWER ON-L POWER POWER_FAIL POWER FAIL OSC 2 X1001 10MHz OSC 1 X3002 32.768KHz DVD RESET HD RESET 1G/VCR/T-REC_LED 1G/VCR/T-REC LED 3G/TV/VCR_LED 3G TV/VCR LED SEG_5...
  • Page 107 TROL BLOCK DIAGRAM V.REC_ST-H SERVO AUDIO_MUTE-H IIC_CLK HIFI/ _CTL IIC_DATA DEMODULATOR HIFI ENV 32 HIFI_ENV.DET HIFI H.SW 106 HIFI_H.SW ST SELECT 31 ST_SELECT 4 FSC OUT X3003 14.3818MHz 4 FSC IN 22 C.SYNC C.SYNC 111 DUMMY V.SYNC DUMMY_V.SYNC VIDEO H.SW H.SW C.ROTARY C.ROTARY...
  • Page 108 HI-FI/DEMODULAT HIFI AUDIO/H.AMP/DEM IC IC701 AN3672NFBP HF_COM OUTPU Y/C/AUDIO/CCD /HEAD AMP VCO-FO LOGIC FM LIM FROM_NORMAL_A TO_NORMAL_A NOISE REDUCTION P.CON 5V POWER P.CON 12V 2-43...
  • Page 109 LATOR BLOCK DIAGRAM DVD_A_OUT-R DVD_A_OUT- FRONT_A_IN-R FRONT_A_IN-L INPUT SW AUDIO_OUT_R TPUT AUDIO_OUT_L RF_CONV_A.OUT TUNER/JACK SIF OUT M LIM BLOCK V. REC_ST-H HIFI_ENV. DET HIFI_H.SW SYSCON AUDIO_MUTE-H IIC_CLK LOGIC IIC_DATA ST_SELECT AUDIO SIGNAL(REC) AUDIO SIGNAL (PB) 2-44...
  • Page 110 TUNER/JACK REAR OUT JAC DVD AUDIO OUT J8001 J8007 VIDEO MUTE H Q8004 SYSCON VIDEO_OUT BUFFER Q8003 SW V OUT VIDEO MUTE SW P. CON+12V P.CON+5V POWER +32V RF-SW SW301 TU301 Q8006 MUTE SW Q303 TUNER MUTE 2-45...

  • Page 111: Block Diagram

    K BLOCK DIAGRAM OPT TRANSSFORMER OS8001 FRONT AV JACK VIDEO AUDIO L AUDIO R JACK Y/C SEPA J8003 J8004 J8005 J8006 COMPONENT OUT J8008 Q8001 D.AUDIO DRIVER DVD_Y Q8002 DVD_U D.AUDIO DVD_V DRIVER DVD I/O SPDIF-134 C_OUT Y_OUT FRONT_V_IN Y/C/AUDIO/CCD HEAD AMP Y/C VIDEO OUT TUNER_V...
  • Page 112 POWER BLOCK Q508 3.3V CTL L501 T501 D505, D506 D502, D503 AC IN Q511 3.3V OUT Q507 3.3V CTL IC501 Q531 Q530 KIA431 PROTECT VOLTAGE CTL. IC Q502 IC503 Q501 PHOTO CONTROL COUPLER 2-47...
  • Page 113 CK DIAGRAM SYSCON AT+12.6V Q510 P.CON+12V P.CON+12V TUNER/JACK Q509 P.CON SW VCR POWER ON-L SYSCON AT+5.2V OPERATION/DISPLAY Q503 P.CON+5V P.CON+5V Q505 Q504 M-CON M-CON+5V AT+5V (M-CON) POWER SW. SYSCON POWER FAIL DVD POWER CTL 9VREG IC502 KIA7809API AT+5.2V P.CON+12V PROTECT P.CON+3.3V Q505 P.CON 5V...
  • Page 114 JVC SERVICE & ENGINEERING COMPANY OF AMERICA DIVISION OF JVC AMERICAS CORP. www.jvcservice.com(US Only) JVC CANADA INC. Head office : 21 Finchdene Square Scarborough, Ontario M1X 1A7 (416)293-1311 Printed in Japan 0212 VP...

  • Page 115: Parts List

    PARTS LIST SAFETY PRECAUTION Parts identified by the symbol are critical for safety. Replace only with specified part numbers. PACKING AND ACCESSORY ASSEMBLY <M1> The instruction manual to be provided with this product will differ according to the destination. 11, 12, 13, 15, 16 SPEC OF BARCODE REF No.

  • Page 116: Final Assembly

    FINAL ASSEMBLY <M2> BEWARE OF BOGUS PARTS Parts that do not meet specifications may cause trouble in regard to safety and per- formance. We recommend that genuine JVC parts be used. PCBB00 (VCR/DVD PCB ASS'Y) RATING LABEL PCB270 (OPERATION PCB ASS'Y)
  • Page 117 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 118: Mechanism Assembly

    < > MECHANISM ASSEMBLY [ TOP VIEW ] CD1501 M2003 UN4001 H5002 H5001 CD1502 M101 NOTE: Applying positions AA, AB, AC and AD for the CLASS PART NO. MARK grease are displayed for this section. GREASE G-555G Check if the correct grease is applied for each MG-33 position.
  • Page 119 [ BOTTOM VIEW ] M2001 CD1501 CD1502 NOTE: Applying positions AA, AB, AC and AD for the CLASS PART NO. MARK grease are displayed for this section. GREASE G-555G Check if the correct grease is applied for each MG-33 position. FG-84M FL-721...
  • Page 120 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 121: Electrical Parts List

    ELECTRICAL PARTS LIST REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 122 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 123 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 124 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 125 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 126 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 127 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 128 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 129: Operation Board Assembly<28

    REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

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