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SERVICE MANUAL
DVD Recorder + VCR
SPECIFICATIONS
Power source: 200-240V, 60/50Hz
Power consumption: 32W
Dimension: 430(W) x 91(H) x 354(D)mm
Net Weight: Approx. 6.18kg
Specifications subject to change without notice
FILE NO.
HVR-DX610
HVR-DX620
REFERENCE No.
SM0905002

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   Summary of Contents for Sanyo HVR-DX610

  • Page 1

    FILE NO. HVR-DX610 SERVICE MANUAL HVR-DX620 DVD Recorder + VCR SPECIFICATIONS Power source: 200-240V, 60/50Hz Power consumption: 32W Dimension: 430(W) x 91(H) x 354(D)mm Net Weight: Approx. 6.18kg Specifications subject to change without notice REFERENCE No. SM0905002...

  • Page 2

    CONTENTS SPECIFICATIONS .......................2 TROUBLE SHOOTING........................3 WAVEFORMS ..........................25 CIRCUIT DIAGRAM........................28 PCB CIRCUIT BOARD........................43 INSTRUMENT DISASSEMBLY .....................46 ELECTRICAL PARTSLIST......................48...

  • Page 3

    TROUBLESHOOTING SPECIFICATIONS General 1. POWER CIRCUIT Power requirements 200–240V~, 50/60 Hz Power consumption Dimensions (approx.) 16.9 x 3.54 x 14.0 inches (430 x 91 x 354 mm) (w x h x d) Mass (approx.) 13.5 lbs (6.18 kg) Operating temperature 41°F to 95°F (5°C to 35°C) Operating humidity 5% to 90%...

  • Page 4

    TROUBLESHOOTING TROUBLESHOOTING 2. SYSTEM CIRCUIT IC501 IC501 (Pin14) IC501 IC501 IC501 IC501 IC501 IC501 IC502 IC502...

  • Page 5

    TROUBLESHOOTING TROUBLESHOOTING B. Digital Board...

  • Page 6

    TROUBLESHOOTING TROUBLESHOOTING C-1. Bad playback quality (1) D. No broadcasting signal received Noise appears on the No broadcasting signal playback screen. received Is the output at IC501 pin# 61(CLK), Is noise diminished by tracking Check IC 501. Re-adjust PATH. 60 (DATA) normal? adjustment.

  • Page 7

    TROUBLESHOOTING TROUBLESHOOTING G. DRUM Motor stops E. No CASSETTE Loading DRUM Motor stops. Cassette tape isnÕt inserted. Is 14V voltage obtained at P501 Check EVER 14V pin#8? (Q850). Is 5V voltage obtained at Loading Check at EVER 14V parts IC501 pin#63? Check Q850.

  • Page 8

    TROUBLESHOOTING TROUBLESHOOTING 3. VIDEO circuit A. EE screen doesnÕt appear B. Playback picture doesnÕt appear 1) No VCR Playback Picture EE MODE Picture NG PB video signal missing. Is Video signal input at Check IF and SCART JACK. IC301 pin#48,50,52,54? Is Envelope output from IC301 Is 5V supplied at Is 5V supplied at IC301 pin#91?

  • Page 9

    TROUBLESHOOTING TROUBLESHOOTING 2) No DVD Playback Picture No DVD Video signal Are there video signal at pin Check PC01, ICN01(CVBS out, Check PC05, P821, 5V, 12V #1,3,5,7,9,11 of P100? Y/C Out, Component Out) Power and cable connection Are there video output signal at CVBS: Check Pin #61 of JK601, JK101, JK102.

  • Page 10

    TROUBLESHOOTING TROUBLESHOOTING 4. AUDIO (Hi-Fi MODEL) A. No sound in E-E mode 2) VCR Part a. RF E-E Record video signal poor. No sound in RF E-E mode Check EE MODE. Is 5V obtained at IC051 pin#1? Check Power circuit. Is luminance and color signal Is signal input into IC301 output from IC301 pin#78?

  • Page 11

    TROUBLESHOOTING TROUBLESHOOTING b. AV1 E-E c. AV2 E-E No sound in AV1 E-E mode. No sound in AV2 E-E mode. Is 12V obtained at IC251 pin#34? Is 12V obtained at IC251 pin#34? Check POWER circuit. Check POWER circuit. Is 5V obtained at IC251 pin#40? Is 5V obtained at IC251 pin#40? Is Audio signal at IC251 pin#6, 7? Check Input AV1 JACK...

  • Page 12

    TROUBLESHOOTING TROUBLESHOOTING e. FRONT E-E d. DVD E-E No sound in FRONT E-E No sound in DVD mode. E-E mode. Is there DVD Audio at IC102 Is 12V obtained at IC251 pin#34? Check IC102, MPEG board pin#7,8? Check POWER circuit. Is 5V obtained at IC251 pin#40? Is 12V obtained at ICD02 pin#8? Check POWER circuit.

  • Page 13

    TROUBLESHOOTING TROUBLESHOOTING C. No Hi-Fi Playback audio(PLAY MODE) B. No NORMAL AUDIO playback in record/playback mode(Check in REC mode) No Normal Audio playback in record/playback mode Is 12V obtained at IC251 pin#34? Check POWER circuit. Check Input SCART JACK. Are there Audio signal at IC251 Check Input Front JACK.

  • Page 14

    WAVEFORMS TROUBLESHOOTING 1. VIDEO D. No Hi-Fi playback in record/playback mode (REC MODE) Check input SCART JACK. Are there Audio signal Check input front jack. at IC251 pin#2~11? Check ICD02(DVD). Is FM OSC signal at IC251 Replace IC251 pin#36? (IC301-70) 5Vp-p (IC301-70)5Vp-p (IC301-46) 520mVp-p (IC301-46) 520mVp-p...

  • Page 15

    WAVEFORMS WAVEFORMS 3. SERVO/SYSCON 2. AUDIO 2-1 AUDIO(Normal) “ (IC501-18) 5Vp-p (IC501-77) 5Vp-p (IC501-76) 5Vp-p (IC501-94) 3Vp-p (IC301-15) 100mVp-p (IC301-11) 1.5Vp-p (IC301-100) 2.3Vp-p (IC301-8) 120mVp-p 2V/5msec/cm 2V/5µsec/cm 2V/5µsec/cm 1V/5msec/cm 20mV/0.5msec/cm 0.5V/0.5msec/cm 0.5V/0.5msec/cm 50mV/0.5msec/cm REC/PLAY REC/PLAY REC/PLAY PLAY ‘ (IC501-97) 4.4Vp-p (IC501-90)25Vp-p&5Vp-p (IC501-87) 2.5Vp-p (IC501-38) 2.6Vp-p...

  • Page 16: Circuit Diagram

    CIRCUIT DIAGRAM 1. SERVO & SYSCON SCHEMATIC DIAGRAM(DVDR+VCR)

  • Page 17

    CIRCUIT DIAGRAM 2. AV IC SCHEMATIC DIAGRAM(DVDR+VCR)

  • Page 18

    CIRCUIT DIAGRAM 3. Hi-Fi & SW & IN OUT CIRCUIT SCHEMATIC DIAGRAM(DVDR+VCR)

  • Page 19

    CIRCUIT DIAGRAM 4. ADC/DAC/VIDEO AMP...

  • Page 20

    CIRCUIT DIAGRAM 5. PIF CIRCUIT DIAGRAM...

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Hvr-dx620

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