Read Sony CDP-CX250 Service Manual online
— 2 —
MODEL IDENTIFICATION
— BACK PANEL —
— BACK PANEL —
TABLE OF CONTENTS
1. SERVICING NOTE
........................................................... 3
2. GENERAL
....................................................................
4
3. DISASSEMBLY
3-1.
Front Panel Assembly ....................................................... 12
3-2.
Back Panel Assembly ....................................................... 12
3-3.
Table Assembly ................................................................ 13
3-4.
Mechanism Deck Assembly ............................................. 13
3-5.
Base Unit Assembly ......................................................... 14
4. TEST MODE
...............................................................
15
5. ADJUSTMENTS
5-1.
Mechanical Adjsument ..................................................... 16
5-2.
Electrical Block Checking ................................................ 22
6. DIAGRAMS
6-1.
Circuit Boards Location ................................................... 24
6-2.
IC Pin Function
• IC101 Digital Servo, Digital Signal Processor
• IC101 Digital Servo, Digital Signal Processor
(CXD2545Q) ................................................................ 25
• IC303 System Control (CXP84332-Q27Q) ................. 28
6-3.
Block Diagram ................................................................. 31
6-4.
Printed Wiring Board — BD, DISP Section — ............... 35
6-5.
Schematic Diagram — BD, DISP Section — .................. 39
6-6.
Printed Wiring Board — MAIN Section — ..................... 43
6-7.
Schematic Diagram — MAIN Section — ........................ 47
6-8.
IC Block Diagrams ........................................................... 51
7. EXPLODED VIEWS
7-1.
Case and Back Panel Section ........................................... 54
7-2.
Disc table Section ............................................................. 55
7-3.
Front panel Section ........................................................... 56
7-4.
Mechanism Section-1 (CDM-40) ..................................... 57
7-5.
Mechanism Section-2 (CDM-40) ..................................... 58
7-6.
Base Unit Section-1 (KSM-213BKN/M-N) ..................... 59
7-7.
Base Unit Section-2 (KSM-213BKN/M-N) ..................... 60
8. ELECTRICAL PARTS LIST
........................................ 61
4-982-813-
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
other than those specified herein may result in hazardous ra-
diation exposure.
The laser component in this product
is capable of emitting radiation
exceeding the limit for Class 1.
is capable of emitting radiation
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
This caution label
is located inside
the unit.
is located inside
the unit.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
• Notice that the minus side of a tantalum capacitor may be
damaged 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.
US Model
: 0
π
Canadian Model
: 1
π
AEP,German Model : 2
π
E Model
: 3
π
Singapore Model
: 4
π
Austrarian Model
: 5
π
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