Sanyo VHR-H792E - Page 91

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SANYO Electric Co.,Ltd.

Osaka, Japan

Jun./ '02 K Printed in Japan

Table of Contents

Default Chapter2
- Table of Contents2
Summary4
Key to Abbreviations4
Important Safety Precautions5
- Precautions During Servicing5
Safety Check after Servicing6
- Insulation Resistance Test6
- Dielectric Strength Test6
- Clearance Distance6
- Leakage Current Test6
Proposal for Applying Short Protection7
Service Notice on Replacing Eeprom8
Service Information for Eeprom9
IC Setting9
Specifications10
Section 212
Cabinet & Main Chassis12
Service Method12
- Electrical Part12
Exploded Views13
- Cabinet & Main Frame Section13
- Packing Accessory Section14
Electrical Adjustment Points Arrangement16
Electrical Adjustment Procedures17
Electrical Troubleshooting Guide19
- Power Circuit(SMPS)19
- Servo Circuit22
- System & Front Panel Circuit25
- Y/C Circuit27
- Tuner/If Circuit31
- Hi-Fi Circuit34
Deck Mechanism Parts Locations36
- Top View36
- Bottom View36
Deck Mechanism Disassembly37
- Drum Assembly37
- Plate Top38
- Holder Assembly CST38
- Opener Door38
- Bracket Assembly L/D Motor38
- Gear Assembly Rack F/L38
- Arm Assembly F/L38
- Lever Assembly S/W38
- Arm Assembly Cleaner40
- Head F/E40
- Base Assembly A/C Head40
- Brake Assembly T41
- Brake Assembly RS41
- Arm Assembly Tension41
- Reel S / Reel T41
- Base Assembly P442
- Opener Lid42
- Arm Assembly Pinch42
- Lever T/Up / Arm T/Up42
- Belt Capstan/Motor Capstan43
- Lever F/R43
- Clutch Assembly D3543
- Brake Assembly Capstan43
- Gear Drive/Gear Cam44
- Gear Sector44
- Plate Slider44
- Lever Tension44
- Lever Spring44
- Gear Assembly P245
  - Gear Assembly P345
- Base Assembly P245
  - Base Assembly P345
- Base Loading46
- Base Tension46
- Arm Assembly Idler Jog46
Deck Mechanism Adjustment47
- Tools and Fixtures for Service47
- Mechanism Alignment Position Check48
- Preparation for Adjustment49
- Checking Torque49
- Guide Roller Height Adjustment50
  - Preliminary Adjustment50
  - Precise Adjustment50
- Audio/Control (A/C) Head Adjustment51
  - Preliminary Adjustment51
  - Precise Adjustment(Azimuth Adjustment)52
- X-Value Adjustment52
- Adjustment after Replacing Drum Assembly (Video Heads)53
- Check the Tape Travel after Reassembling Deck Assembly53
  - Deck Mechanism53
Maintenance/Inspection Procedure54
- Check before Starting Repairs54
- Required Maintenance55
- Scheduled Maintenance55
- Supplies Required for Inspection and55
- Maintenance Procedure55
  - Cleaning55
  - Greasing56
Mechanism Troubleshooting Guide58
- Deck Mechanism58
- Front Loading Mechanism61
Exploded Views63
- Front Loading Mechanism Section63
- Moving Mechanism Section (1)64
- Moving Mechanism Section (2)65

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