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SONY HCDGRX3
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SONY HCDGRX3 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Table of Contents
    1. SERVICING NOTES
    2. GENERAL
    • Location of Controls
    • Setting the Time
    1. DISASSEMBLY
    2. TEST MODE
    3. MECHANICAL ADJUSTMENTS
    4. ELECTRICAL ADJUSTMENTS
    • DECK Section
    • TUNER Section
    • CD Section
    1. DIAGRAMS
      1. Block Diagram - TUNER Section (AEP, UK, German Models Only)
      2. Block Diagram - TUNER Section (East European, CIS Models Only)
      3. Block Diagram - CD MECHANISM DECK Section
      4. Block Diagram - TAPE DECK Section
      5. Block Diagram - MAIN Section
      6. Block Diagram - DISPLAY/KEY CONTROL/POWER SUPPLY Section
      7. Schematic Diagram - TUNER Section (AEP, UK, German Models Only)
      8. Printed Wiring Board - TUNER Section (AEP, UK, German Models Only)
      9. Printed Wiring Board - TUNER Section (East European, CIS Models Only)
      10. Schematic Diagram - TUNER Section (East European, CIS Models Only)
      11. Printed Wiring Board - CD Section
      12. Schematic Diagram - CD Section
      13. Printed Wiring Boards - CD MOTOR Section
      14. Schematic Diagram - CD MOTOR Section
      15. Printed Wiring Board - TAPE DECK Section
      16. Schematic Diagram - TAPE DECK Section
      17. Printed Wiring Board - LEAF SW Section
      18. Schematic Diagram - LEAF SW Section
      19. Printed Wiring Board - MAIN Section
      20. Schematic Diagram - MAIN Section (1/4)
      21. Schematic Diagram - MAIN Section (2/4)
      22. Schematic Diagram - MAIN Section (3/4)
      23. Schematic Diagram - MAIN Section (4/4)
      24. Printed Wiring Board - PANEL Section
      25. Schematic Diagram - PANEL Section
      26. Printed Wiring Board - CD - SW Section
      27. Schematic Diagram - CD - SW Section
      28. Printed Wiring Board - HP Section
      29. Schematic Diagram - HP Section
      30. Printed Wiring Board - POWER AMP Section
      31. Schematic Diagram - POWER AMP Section
      32. Printed Wiring Board - TRANSFORMER Section
      33. Schematic Diagram - TRANSFORMER Section
      34. IC Pin Function Description
    2. EXPLODED VIEWS
    3. ELECTRICAL PARTS LIST
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Text excerpt from page 11 (click to view)
TUNER SECTION

0 dB=1µV

AM Tuning Voltage Adjustment
Main board TP1 F G VT DC voltmeter

+ –

Procedure: 1. Set the reception frequency of the unit to 530 kHz. 2. Adjust L105 for 1.2 ± 0.05 V reading on the DC voltmeter. 3. Set the reception frequency of the unit to 1,710 kHz. 4. Confirm that the voltage reading on the DC voltmeter is within 8.0 ± 0.5 V. Adjustment Location: MAIN board (See page 12) AM Tracking Adjustment
loop antenna loop antenna (Supplied accessories)

AM RF SSG set 30% amplitude modulation by 400 Hz signal AM ANTENNA terminal (JK101)

60 cm

Field strength dB (µV/m) =SSG output level dB (µV/m) –26 dB.

Procedure: 1. Tune the set to 600 kHz. 2. Set the output of AM RF SSG so that the input level of the set will become 60 dB (µV/m). 3. Adjust L104 so that when the waveform on the oscilloscope is maximum, no noise appears. 4. Tune the set to 1,400 kHz.

5.

Adjust CT102 so that when the waveform on the oscilloscope is maximum, no noise appears.

• Repeat the procedures in each adjustment several times, and the tracking adjustment should be finally done by the trimmer capacitors. Adjustment Location: MAIN board (See page 12)

FM Tuning Voltage Adjustment
Main board TP1 IF G VT DC voltmeter

+ –

Procedure : 1. Set the reception frequency of the unit to 87.5 MHz. 2. Adjust L103 for 1.2 ± 0.05V reading on the DC voltmeter. 3. Set the reception frequency of the unit to 108 MHz. 4. Confirm that the voltage reading on the DC voltmeter is within 7.8 ± 0.5V. Adjustment Location: MAIN board (See page 12)

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