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

JVC HR-XVC20US Service Manual

Dvd/cd player hi-fi stereo video casstte recorder
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SERVICE MANUAL
DVD/CD PLAYER Hi-Fi STEREO VIDEO CASSTTE RECORDER
Regarding service information other than these sections, refer to the service manual No. 82948 (HR-XVC20US).
Also, be sure to note important safety precautions provided in the service manual.
SPECIFICATIONS
GENERAL
Power supply:
AC 120V 60Hz
Power consumption:
Operation: 18W
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
Audio:
In: - 8 dBm/50k ohm
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
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)
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD
(R)
S
DVD section
Signal system:
NTSC
Applicable disc:
DVD (12cm, 8cm), CD (12cm, 8cm)
Audio characteristics
Frequency response:
DVD: 4Hz - 22kHz
CD: 4Hz - 20kHz
S/N Ratio:
90dB
Harmonic distortion
0.02%
Wow and flutter:
Less than 0.01% Wrms
Dynamic range:
More than 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
(RCA) 1 Vp-p/75ohm
(RCA) - 8 dBm/1k ohm
Wavelength: 775 - 805 nm
Maximum output power: 0.5 mW
Maximum output power: 1.0 mW
HR-XVC20US(R) D2VP11
No.82989
2003/07

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  • Page 1 SERVICE MANUAL DVD/CD PLAYER Hi-Fi STEREO VIDEO CASSTTE RECORDER HR-XVC20U Regarding service information other than these sections, refer to the service manual No. 82948 (HR-XVC20US). Also, be sure to note important safety precautions provided in the service manual. SPECIFICATIONS GENERAL...

  • Page 2: Table Of Contents

    RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. E68219 CAT. M2C58 DISTRIBUTOR / DISTRIBUTEUR DISTRIBUTED BY JVC AMERICAS CORP., 1700 VALLEY ROAD, WAYNE, N.J. 07470 AUDIO DISTRIBUTED BY JVC CANADA, INC. 21 FINCHDENE SQUARE, SCARBOROUGH, ONTARIO.MIX 1A7. DISTRIBUT PAR JVC CANADA, INC. 21 FINCHDENE SQUARE, SCARBOROUGH, ONTARIO.MIX 1A7.

  • Page 3: Disassembly Instructions

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

  • Page 4: Dvd Pcb

    DISASSEMBLY INSTRUCTIONS 1-4: DVD PCB (Refer to Fig. 1-4) 1-6: VCR PCB (Refer to Fig. 1-6) Remove the 3 screws 1. Remove the screw 1. Remove the 4 screws 2. Remove the screw 2. Remove the screw 3. Disconnect the following connectors: (CP4002 and CP8102).

  • Page 5: Removal Of Dvd Deck Parts

    DISASSEMBLY INSTRUCTIONS 4. REMOVAL OF DVD DECK PARTS Main Chassis Ass’y NOTE 1. Do not disassemble the DVD DECK PARTS except listed Rack Loading parts here. Minute adjustments are needed if the disas- semble is done. If the repair is needed except listed parts, replace the DVD MECHA ASS’Y.

  • Page 6: Main Chassis Ass'y

    DISASSEMBLY INSTRUCTIONS NOTE Main Chassis Ass’y When installing the Clamper Magnet, install it with the green face up. When installing the wire of the Lever Switch, install it correctly as Fig. 4-4-B. When installing the Lever Switch, install it correctly as Traverse Holder Fig.

  • Page 7: Relay Pcb Ass'y

    DISASSEMBLY INSTRUCTIONS NOTE 4-9: GEAR (Refer to Fig. 4-9-A) Unlock the support 1. After the assembly of the Rack Feed, check if the Rack Feed 1/2 is moving smoothly. (Refer to Fig. 4-7-B) Remove the Middle Gear 1/2/3, Idler Gear and Feed Gear. In case of the Rack Feed Ass’y installation, install cor- rectly as Fig.

  • Page 8: Feed Motor

    DISASSEMBLY INSTRUCTIONS NOTE In case of the Idler Arm installation, install as the circled section of Fig. 4-10-B. In case of the Idler Arm Spring installation, install as the circled section of Fig. 4-10-C. In case of the Chassis Spring installation, install as the circled section of Fig.

  • Page 9: Electrical Adjustment Parts Location Guide

    ELECTRICAL ADJUSTMENTS ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (Connector Connections) AC IN CD501 VCR PCB TP8001 TP3001 CP102 J8001 CD8002 CP8102 CP8002 CP103 FE HEAD AC HEAD CP2601 TP101 CP2603 TP3002 CP501 CP4002 CP2602 DVD PCB CP651 V651 CD2001 DVD DECK CD681 CP681 OPERATION PCB...

  • Page 10: 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 11 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 0307 VP...
  • Page 12 BEWARE OF BOGUS PARTS Parts that do not meet specifications may cause trouble in regard to safety and performance. We recommend that genuine JVC parts be used. 3.1.1 PACKING AND ACCESSORY ASSEMBLY <M1> The instruction manual to be provided with this product will differ according to the destination.
  • Page 13 3.1.2 FINAL ASSEMBLY <M2> PCB010 (VCR PCB ASS'Y) PCB130 (DVD PCB ASS'Y) RATING LABEL PCB270 (OPERATION PCB ASS'Y)
  • Page 14 3.1.3 MECHANISM ASSEMBLY(DVD) <MN> CD2302 Do not replace the parts. Because, minute adjustments are needed if CD2001 this condition is disassembled further more. PCB640 If the repair is needed, replace the (SW PCB ASS'Y) DVD MECHA ASS'Y. M2002 PCB68A (RELAY PCB ASS'Y) CD2301 NOTE: Applying positions AA, AB and AC for the...
  • Page 15 3.1.4 MECHANISM ASSEMBLY(VCR) <M4> [ TOP VIEW ] CD1501 M2003 UN4001 H5002 H5001 CD1502 M101 NOTE: Applying positions AA, AB, AC, AD and AE for CLASS PART NO. MARK the grease are displayed for this section. GREASE G-555G Check if the correct grease is applied for each MG-33 position.
  • Page 16 [ BOTTOM VIEW ] M2001 CD1501 CD1502 NOTE: Applying positions AA, AB, AC, AD and AE for CLASS PART NO. MARK the grease are displayed for this section. GREASE G-555G Check if the correct grease is applied for each MG-33 position.
  • Page 17 PARTS LIST REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 18 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 19 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 20 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 21 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 22 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 23 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 24 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 25 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 26 CORE,BEADS B4001 X-024HC31022 CORE,BEADS B4002 X-024HC31022 CORE,BEADS B4003 X-024HC31022 CORE,BEADS B4004 X-024HC31022 CORE,BEADS B4005 X-024HC31022 CORE,BEADS B4006 X-024HC31022 CORE,BEADS B4007 X-024HC31022 CORE,BEADS B4008 X-024HC31022 CORE,BEADS B7301 X-024HC31022 CORE,BEADS B7302 X-024HC31022 CORE,BEADS B8101 X-024HC31022 CORE,BEADS B8102 X-024HC31022 CORE,BEADS (VP)-D2VP11 3-15 HR-XVC20US(R)

  • Page 27: Charts And Diagrams Interconnection Diagram

    SECTION 2 CHARTS AND DIAGRAMS INTERCONNECTION DIAGRAM OPERATION PCB FULL ERASE HEAD ASS’Y PCB270 VEBA07 HALL MAIN ROTOR SENSOR COIL MAGNET FG SENSOR HALL HALL SWITCH CP2601 LOGIC GND(PDIC) GND(PDIC) Vref Vref CP3001 CAP FG CP501 CP4002 CAP VCO CAP.M/F/R P.CON+3.3V P.CON+3.3V DRIVE...

  • Page 28: Y/C/Audio/Ccd/Head Amp 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/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM (VCR PCB) BUFFER Q109 KTC3875S_Y_RTK R129 1.8K FROM POWER P.CON+5V FROM/TO TUNER/JACK...
  • Page 29 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. SYSCON SCHEMATIC DIAGRAM (VCR PCB) TP3002 H.SW FROM/TO Y/C/AUDIO/CCD/HEAD AMP C3025 FROM/TO POWER 12P CH DUMMY_V.SYNC...

  • Page 30: Tuner/Jack 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. TUNER/JACK SCHEMATIC DIAGRAM (VCR PCB) RF MUTE SW Q301 KTC3875S_Y_RTK REAR OUT JACK J8001 MSP-213V1-432_PBSN C315...

  • Page 31: Operation/Display 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. OPERATION/DISPLAY SCHEMATIC DIAGRAM (VCR PCB) V651 ELF-4M6SDRVGWB SEG1 SW Q664 KRC103SRTK R674 FROM/TO SYSCON 1G SW...

  • Page 32: Hi-Fi/Demodulator Schematic Diagram

    Note : The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. When replacing the parts , refer to the Parts List. HI-FI/DEMODULATOR SCHEMATIC DIAGRAM (VCR PCB) C744 0.1 F C743 R716 3.3K 0.22 FROM/TO TUNER/JACK FRONT_A_IN_R...

  • Page 33: Power 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. POWER SCHEMATIC DIAGRAM (VCR PCB) W870 TO Y/C/AUDIO/CCD/HEAD AMP P.CON+5V D506 C516 W806 AT+12.6_V...

  • Page 34: Operation/Led 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. OPERATION/LED SCHEMATIC DIAGRAM (OPERATION PCB) DVD LED D685 R685 R686 R687 R688 R689 13K 1/4W...

  • Page 35: Sw/Relay/Fg 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. SW/RELAY/FG SCHEMATIC DIAGRAM M2002 M2001 BCD3B02 JCL9B61 PCB640 VEBA17 SW1AB-271-10A IMSA-9615S-08C-PP SLD.MTR(-) SLD.MTR(+) SP.MTR(-)

  • Page 36: Mpeg/Micom 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. MPEG/MICON SCHEMATIC DIAGRAM (DVD PCB) C4038 FROM/TO AUDIO/VIDEO 0.01 B DAC_VIDEO_C DAC_VIDEO_B DAC_VIDEO_D DAC_VIDEO_A...
  • Page 37 Note : The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. When replacing the parts , refer to the Parts List. MEMORY SCHEMATIC DIAGRAM (DVD PCB) FROM/TO MPEG/MICON FLASH IC IC4007 SST39VF800A-70-4C-EK SD_A0 SD_A1 HA16...

  • Page 38: Rf Amp/Dsp 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. RF AMP/DSP SCHEMATIC DIAGRAM (DVD PCB) FROM/TO MPEG/MICON SPDL_SENS TOUT_SW R2625 4.7K MOT_SPDL+ TIN_SW...
  • Page 39 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. AUDIO/VIDEO SCHEMATIC DIAGRAM (DVD PCB) C8146 C8144 6.3V C8145 6.3V FROM/TO MPEG/MICON 6.3V W865 DAC_D_DVD_VIDEO...
  • Page 40 PRINTED CIRCUIT BOARDS COMPONENT PARTS LOCA VCR (INSERTED PARTS) CAUTION : FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH SAME TYPE AND RATED FUSE(S). REF.NO. LOCATION REF.NO. LOCATION ATTENTION : SOLDER SIDE CAPACITOR C727 REPLACER PAR DES FUSIBLE DE MEME TYPE. C101_1 C728 C103...
  • Page 41 PRINTED CIRCUIT BOARDS ATION GUIDE <VCR> VMC300A VCR (CHIP MOUNTED PARTS) REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION RE SOLDER SIDE SOLDER SIDE D532 R113 R3008 D534 R114 R3009 D535 R115 R3010 D536 R116 R3011 D537 R117 R3012 D538 R119 R3014 D539 R120 R3015...
  • Page 42 PRINTED CIRCUIT BOARDS DVD (TOP SIDE) W811 CP2602 CP2603 CP2601 IC4005 D2601 C2633 C2625 C2628 C2624 C2635 L8106 C2629 R2614 C2603 Q2602 Q2601 C2604 C2605 L8105 C2606 C2616 C2607 IC2601 R2643 C2618 R2644 C2649 R2604 C2654 R8111 R2603 D8108 D8107 D8106 C2617 R2635...
  • Page 43 PRINTED CIRCUIT BOARDS PRINTED CIRCUIT BOARDS DVD (BOTTOM SIDE) OPERATION SOLDER SIDE SW690 SW686 D8103 R690 R685 R686 SW689 SW685 Q8104 Q8105 R688 R687 SW687 SW688 R689 W869 W874 CP681 W872 R2651 B7302 (VP)-D2VP11 HR-XVC20US(R) 2-33 2-34...
  • Page 44 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 45 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 46 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 47 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 48 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 49 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 50 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 51 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 52 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 53 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 54 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 55 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 56 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 57 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 58 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 59 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 60 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 61 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 62 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 63 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 64 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 65 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 66 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 67 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 68 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 69 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 70 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 71 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 72 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 73 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 74 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 75 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 76 <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 77 <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 78 <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 79 <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 80 <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 81 <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 82 <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 83 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...

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