Table Of Contents - Sony DCR-TRV725E Service Manual

TABLE OF CONTENTS

1. Preparations for Check, Adjustment and
Replacement of Mechanism Block
1-1. Service Jigs and Tools ························································ 3
1-2. Mode Selector II Operating Procedure ······························· 5
2. Periodic Inspection and Maintenance
2-1. Rotary Drum Cleaning ······················································· 9
2-2. Tape Path System Cleaning ················································ 9
2-3. Periodic Inspection List ···················································· 10
2-4. Appling Oil and Grease ···················································· 10
3. Before Replacement, Check or Adjustment
3-1. Phase Adjustment ····························································· 11
3-2. Cassette compartment assembly ······································· 12
4. Check, Adjustment and Replacement
4-1. Drum Assembly ································································ 14
4-2. HCL Arm Assembly, Loading Motor Assembly ·············· 15
4-3. Drum Base Assembly, Drum Earth ·································· 16
4-4. Guide Rail T2, Capstan Motor ········································· 17
4-5. Blind Plate, Lock Guide ··················································· 18
4-6. Reel Table (T) Assembly, T Soft Assembly ····················· 19
4-7. S Ratchet RE Plate, Cassette Guide S ······························ 20
4-8. R Drive Gear Assembly, LS Cam Plate ···························· 21
4-9. LS Cam Plate Position Adjustment ·································· 22
4-10. LS Chassis Block Assembly ············································· 23
4-11. TG7 Arm Block Assembly, Pinch Arm Assembly ··········· 24
4-12. Guide Base (T) Block Assembly,
Guide Base (S) Block Assembly ······································ 25
4-13. TG1 Arm, Reel Table (S) Assembly, Push Switch (3Key) · 26
4-14. Hall Element (H001, H002 (T/S Reel)),
Photo Transistor (Q001, Q002 (Tape Top/Tape End)),
LED (D001 (Tape LED)) ·················································· 27
4-15. LS Guide Roller, Guide Lock Plate (T),
Pinch Pusher Assembly, Eject Arm ···································· 28
4-16. Rotary Switch, Cam Relay Gear,
Change Gear Assembly, Timing Belt ······························· 29
4-17. Guide Gear Assembly, Guide Gear T Assembly,
Cam Relay Gear 1, Guide Lock Plate (S) ························ 30
4-18. LD Gear 4, Cam Gear 1, HC Drive Arm ·························· 31
4-19. M Slide Plate Assembly, LS Arm Assembly,
Cam Gear 2, GL Arm Assembly ······································ 32
5. Adjustment
5-1. Check and Adjustment of TG1 Back-tension Position ····· 33
5-2. Check and Adjustment of FWD/RVS Back-tension ········· 34
5-3. Capstan Motor Azimuth Position Adjustment ·················· 35
5-4. Tape Path Adjustment ······················································· 36
6. Exploded Views
6-1. Cassette Compartment Assy, Drum Assy ························· 40
6-2. LS Chassis Block Assembly ············································· 41
6-3. Mechanical Chassis Block Assembly-1 ··························· 42
6-4. Mechanical Chassis Block Assembly-2 ··························· 43
7. Printed Wiring Boards and
Schematic Diagrams
.............................................. 44
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