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Extracted text from sony mz e 80 service manual (Ocr-read)
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TABLE OF CONTENTS
1. SERVICING NOTES
............................................... 2
2. GENERAL ................................................................... 3
3. DISASSEMBLY ......................................................... 4
4. TEST MODE .............................................................. 6
5. ELECTRICAL ADJUSTMENTS ......................... 10
6. DIAGRAMS
6-1. Block Diagram ................................................................ 11
6-2. Printed Wiring Boards .................................................... 16
6-3. Schematic Diagram ......................................................... 19
6-4. IC Pin Function Description ........................................... 28
7. EXPLODED VIEWS ................................................ 35
8. ELECTRICAL PARTS LIST ............................... 37
Flexible Circuit Board Repairing
¥ Keep the temperature of the soldering iron around 270 ûC dur-
ing 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.
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.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED
LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
SECTION 1
SERVICING NOTES
This MiniDisc player is classified as a CLASS 1
LASER product.
The CLASS 1 LASER PRODUCT label is located
on the bottom exterior.¥ Removing the mechanism deck causes this set to be disabled
during a repair with the power supplied to the set. Therefore,
lock convex portion of open/close detect switch (S801) during
a repair.
¥ Replacement of CXD2663GA (IC601) used in this set requires
a special tool. Therefore, it cannot be replaced.
Mechanism deck section
Open/close detect
switch (S801)
