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HCD-EC69/EC79/EC99
NOTES ON CHIP COMPONENT REPLACEMENT
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
FLEXIBLE CIRCUIT BOARD REPAIRING
•
Keep the temperature of soldering iron around 270 °C during
repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
tion exposure.
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE
THESE
COMPONENTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2
This appliance is classifi ed as
a CLASS 1 LASER product.
This marking is located on the
rear or bottom exterior.
WITH
SONY
PARTS
TABLE OF CONTENTS
1.
2.
..................................................................
3.
3-1. Disassembly Flow ...........................................................
3-2. Side Panel (L)/(R) ...........................................................
3-3. Panel (Top) ......................................................................
3-4. MAIN Board ................................................................... 10
3-5. Front Panel Block ........................................................... 10
3-6. Back Panel Block ............................................................ 11
3-7. CD Mechanism Block ..................................................... 11
3-8. Base Unit ......................................................................... 12
3-9. OP Base Assy (KSM-213D) ........................................... 12
3-10. Belt (DLM3A) ................................................................ 13
4.
............................................................ 14
5.
6.
6-1. Block Diagram - CD, TUNER Section - ........................ 20
6-2. Block Diagram - MAIN Section - ................................... 21
- PANEL, POWER SUPLLY Section - ........................... 22
6-4. Printed Wiring Board - CD Board - ................................ 24
6-5. Schematic Diagram - CD Board - ................................... 25
6-6. Printed Wiring Board - USB Board - .............................. 26
6-7. Schematic Diagram - USB Board - ................................. 27
6-8. Schematic Diagram - MAIN Board (1/2) - ..................... 28
6-9. Schematic Diagram - MAIN Board (2/2) - ..................... 29
6-10. Printed Wiring Board - MAIN Board - ........................... 30
6-11. Printed Wiring Boards - AMP Section -.......................... 31
6-12. Schematic Diagram - 2CH-4CH AMP Board - ............... 32
6-13. Schematic Diagram - 3CH AMP Board (EC99) - ........... 33
6-14. Printed Wiring Board - PANEL Board - ......................... 34
6-15. Schematic Diagram - PANEL Board - ............................ 35
POWER SUPPLY Section - ............................................ 36
SUPPLY Section - ........................................................... 37
7.
7-1. Panel Section ................................................................... 45
7-2. Front Panel Section ......................................................... 46
7-3. Chassis Section ............................................................... 47
7-4. Main Section ................................................................... 48
8.
Accessories are given in the last of the electrical parts list.
.............................................
........................ 18
.............................. 50
3
6
8
9
9
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