Sony CDP-CE525 / CDP-CE535 Service Manual ▷ View online
– 1 –
MICROFILM
CDP-CE525
US Model
Canadian Model
AEP Model
Australian Model
SPECIFICATIONS
SERVICE MANUAL
COMPACT DISC PLAYER
Model Name Using Similar Mechanism
CDP-CE515
CD Mechanism Type
CDM27H
Base Unit Type
BU-5BD25
Optical Pick-up Type
KSS-213BA/F-NP
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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.
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 temperatur e 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.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
The following
caution label is
located inside of
the unit.
caution label is
located inside of
the unit.
PARTS No.
MODEL
MODEL IDENTIFICATION
— BACK PANEL —
— BACK PANEL —
4-997-419-0π
4-997-419-1π
4-997-419-2π
4-997-419-3π
4-997-419-1π
4-997-419-2π
4-997-419-3π
US
Canadian
AEP
Australian
Canadian
AEP
Australian
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 PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
!
SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS
SONT DONNÉS DANS CE MANUEL OU DANS LES
SUPPLÉMENTS PUBLIÉS PAR SONY.
,,,,,,,,,
yyyyyyyyy
PART NO.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
ing safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
LEAKAGE
The AC leakage from any exposed metal part to earth Ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers). Leak-
age current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers). Leak-
age current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
0.15
µ
F
To Exposed Metal
Parts on Set
Parts on Set
1.5k
Ω
AC
voltmeter
(0.75V)
voltmeter
(0.75V)
Earth Ground
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TABLE OF CONTENTS
1. SERVICING NOTE
.......................................................... 4
2. GENERAL
.......................................................................... 7
3. DISASSEMBLY
3-1. Case and Front Panel ............................................................ 8
3-2. Back Panel and Disc Table .................................................... 8
3-3. Base Unit ............................................................................. 9
3-4. Bracket (Gear) Assembly ...................................................... 9
3-2. Back Panel and Disc Table .................................................... 8
3-3. Base Unit ............................................................................. 9
3-4. Bracket (Gear) Assembly ...................................................... 9
4. TEST MODE
..................................................................... 10
5. ELECTRICAL BLOCK CHECKING
........................ 13
6. DIAGRAMS
6-1. Circuit Boards Location ...................................................... 15
6-2. Schematic Diagram – BD Section – ................................... 17
6-3. Printed Wiring Board – BD Section – ................................. 19
6-4. Printed Wiring Board – Main Section – .............................. 21
6-5. Schematic Diagram – Main (1/2) Section – ........................ 23
6-6. Schematic Diagram – Main (2/2) Section – ........................ 25
6-7. Printed Wiring Board – Motor Section – ............................ 27
6-8. Schematic Diagram – Motor Section – ............................... 28
6-9. Schematic Diagram – Panel Section – ................................ 29
6-10. Printed Wiring Board – Panel Section – ............................ 31
6-11. IC Pin Functions ................................................................ 33
6-12. IC Block Diagrams ............................................................ 37
6-2. Schematic Diagram – BD Section – ................................... 17
6-3. Printed Wiring Board – BD Section – ................................. 19
6-4. Printed Wiring Board – Main Section – .............................. 21
6-5. Schematic Diagram – Main (1/2) Section – ........................ 23
6-6. Schematic Diagram – Main (2/2) Section – ........................ 25
6-7. Printed Wiring Board – Motor Section – ............................ 27
6-8. Schematic Diagram – Motor Section – ............................... 28
6-9. Schematic Diagram – Panel Section – ................................ 29
6-10. Printed Wiring Board – Panel Section – ............................ 31
6-11. IC Pin Functions ................................................................ 33
6-12. IC Block Diagrams ............................................................ 37
7. EXPLODED VIEWS
7-1. Case Section ........................................................................ 40
7-2. Front Panel Section ............................................................. 41
7-3. Back Panel and Disc Table Section ..................................... 42
7-4. Chassis Section ................................................................... 43
7-5. Base Unit Section (BU-5BD25) .......................................... 44
7-2. Front Panel Section ............................................................. 41
7-3. Back Panel and Disc Table Section ..................................... 42
7-4. Chassis Section ................................................................... 43
7-5. Base Unit Section (BU-5BD25) .......................................... 44
8. ELECTRICAL PARTS LIST
........................................ 45
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SECTION 1
SERVICING NOTE
HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH
TURNS OFF
TURNS OFF
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
OR BASE UNIT
The laser diode in the optical pick-up bloc k may suffer
electrostatic breakdown because of the potential difference
generated by the charged electrostatic load, etc. on clothing and
the human body.
During repair, pay attention to electrostatic breakdown 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.
electrostatic breakdown because of the potential difference
generated by the charged electrostatic load, etc. on clothing and
the human body.
During repair, pay attention to electrostatic breakdown 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,
observe from more than 30 cm away from the objective lens.
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveform is output two times.
check that the S curve waveform is output two times.
Tray
Insert a tapering driver into the aperture of the unit bottom,
and turn in the direction of arrow (to OUT direction).
and turn in the direction of arrow (to OUT direction).
*
To close the disc tray, turn the driver in the reverse direction
(to IN direction).
A
B
1
Set the mark of
ROTARY ENCODER.
2
Slide the SET LEVER
to the arrow
B
direction.
3
Rotate the GEAR (U/D)
to the arrow
A
direction.
4
Install the MAIN GEAR
as show in the drawing.
5
Stopper washer (5)
NOTE FOR MAIN GEAR INSTALLATION
