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Sony HCD-ED1 Service Manual

Sony HCD-ED1
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TABLE OF CONTENTS
1. GENERAL .......................................................................... 4
2. DISASSEMBLY
2-1. CD Door, CD Base and Base Unit ........................................ 6
2-2. Rear Panel ........................................................................... 6
2-3. Bottom Cover and Front Panel Block ................................... 7
2-4. Door Cover Assy and Mechanical Deck (Cassette) .............. 7
3. MECHANICAL ADJUSTMENTS ............................... 8
4. ELECTRICAL ADJUSTMENTS ................................. 8
5. DIAGRAMS
5-1. Circuit Boards Location ...................................................... 13
5-2. IC Pin Function ................................................................... 14
5-3. Schematic Diagram — CD Section — ............................... 16
5-4. Printed Wiring Board — CD Section — ............................. 19
5-5. Schematic Diagram — Input/Output Section — ................ 21
5-6. Printed Wiring Board — Input/Output Section —.............. 23
5-7. Printed Wiring Board — Deck Section — .......................... 25
5-8. Schematic Diagram — Deck Section — ............................ 27
5-9. Schematic Diagram — Display Section — ........................ 30
5-10. Printed Wiring Board — Display Section — ................... 33
5-11. Schematic Diagram — Power Section — ........................ 36
5-12. Printed Wiring Board — Power Section — ..................... 39
5-13. IC Block Diagrams ........................................................... 41
6. EXPLODED VIEWS
6-1. CD Section ......................................................................... 45
6-2. Rear Panl Section ................................................................ 46
6-3. Front Panel Section ............................................................. 47
6-4. Mechanism Deck Section (Cassette) .................................. 48
6-5. Base Unit Section (BU17-BD19)........................................ 49
7. ELECTRICAL PARTS LIST ........................................ 50
SERVICING NOTE
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
MODEL IDENTIFICATION
— AC POWER SUPPLY CODE —
AEP, East European, CIS model
(Without voltage selector)
Singapore, Malaysia,
Hong Kong model
(With voltage selector)
UK model
US, Canadian model

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Sony HCD-ED1 Specifications

General IconGeneral
BrandSony
ModelHCD-ED1
CategoryStereo System
LanguageEnglish

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