Sony CDP-CE525 Service Manual
MICROFILM
CDP-CE525
SERVICE MANUAL
Model Name Using Similar Mechanism CDP-CE515
CD Mechanism Type CDM27H
Base Unit Type BU-5BD25
Optical Pick-up Type KSS-213BA/F-NP
SPECIFICATIONS
US Model
Canadian Model
AEP Model
Australian Model
COMPACT DISC PLAYER
– 1 –
Laser component in this product is capable of emitting radiation
0.15µF
To Exposed Metal
Parts on Set
1.5k
Ω
AC
voltmeter
(0.75V)
Earth Ground
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER PR ODUCT MARKING is located on
the rear exterior.
The following
caution label is
located inside of
the unit.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following 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 leaka ge. 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). Leakage 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.
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 V OM
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 passive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
Notes on chip component replacement
• Never reuse a disconnected chip component.
• 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.
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
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE ! SUR
LES DIAGRAMMES SCHÉMATIQ UES 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 P AR SONY.
À LA SÉCURITÉ!!
Fig. A. Using an AC voltmeter to check AC leakage.
MODEL IDENTIFICATION
— BACK PANEL —
PART NO.
PARTS No. MODEL
4-997-419-0π
4-997-419-1π
4-997-419-2π
4-997-419-3π
US
Canadian
AEP
Australian
– 2 –
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
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
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
8. ELECTRICAL PARTS LIST ........................................ 45
– 3 –
SECTION 1
SERVICING NOTE
HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH
TURNS OFF
Insert a tapering driver into the aperture of the unit bottom,
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).
Tray
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block 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.
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.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveform is output two times.
NOTE FOR MAIN GEAR INSTALLATION
5
Stopper washer (5)
4
Install the MAIN GEAR
as show in the drawing.
B
3
Rotate the GEAR (U/D)
to the arrow
A
A
direction.
– 4 –
2
Slide the SET LEVER
to the arrow
B
direction.
1
Set the mark of
ROTARY ENCODER.
SHIPMENT MODE
Performed when returning the unit to the customer.
Custom File Erases all custom files and initializes settings.
Procedure:
1. Remove the discs from all trays.
2. While pressing the DISK SKIP button and PR OGRAM button,
press the 1/u button to turn ON the power.
3. “NO DISC” is displayed, indicating that the mode has ended.
Note: “NO DISC” may be displayed even if there are discs on the
trays.
CD-TEXT TEST DISC
This unit is able to display the TEXT data (character information) written in the CD on its fluorescent indicator tube.
The CD-TEXT TEST DISC (TGCS-313:4-989-366-01) is used for checking the display.
To check, perform the following procedure.
Checking Method:
1. Set the test disc on a free tray, and chuck the disc.
2. Press the ” button and play back the disc.
3. The following will be displayed on the fluorescent indicator tube.
Display : 1kHz/0 dB/ L&R
4. Rotate ≠ and ± knob to switch the track. The text data of each track will be displayed.
For details of the displayed contents for each track, refer to “T able 1 : CD-TEXT TEST DISC TEXT Data Contents” and “Table 2 : CDTEXT TEST DISC Recorded Contents and Display”.
Restrictions in CD-TEXT Display
In this unit, some special characters will not be displayed properly. These will be displa yed as a space or a character resembling it. For details,
refer to “Table 2 : CD-TEXT DISC Recorded Contents and Display”.
Table 1 : CD-TEXT TEST DISC TEXT Data Contents (TRACKS No. 1 to 41:Normal Characters)
TRACK
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Displayed Contents
1kHz/0dB/L&R
20Hz/0dB/L&R
40Hz/0dB/L&R
100Hz/0dB/L&R
200Hz/0dB/L&R
500Hz/0dB/L&R
1kHz/0dB/L&R
5kHz/0dB/L&R
7kHz/0dB/L&R
10kHz/0dB/L&R
16kHz/0dB/L&R
18kHz/0dB/L&R
20kHz/0dB/L&R
1kHz/0dB/L&R
1kHz/-1dB/L&R
1kHz/-3dB/L&R
1kHz/-6dB/L&R
1kHz/-10dB/L&R
1kHz/-20dB/L&R
1kHz/-60dB/L&R
1kHz/-80dB/L&R
TRACK
No.
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
Displayed Contents
1kHz/-90dB/L&R
Infinity Zero w/o emphasis//L&R
Infinity Zero with emphasis//L&R
400Hz+7kHz(4:1)/0dB/L&R
400Hz+7kHz(4:1)/-10dB/L&R
19kHz+20kHz(1:1)/0dB/L&R
19kHz+20kHz(1:1)/-10dB/L&R
100Hz/0dB/L*
1kHz/0dB/L*
10kHz/0dB/L*
20kHz/0dB/L*
100Hz/0dB/R*
1kHz/0dB/R*
10kHz/0dB/R*
20kHz/0dB/R*
100Hz Squer Wave//L&R
1kHz Squer Wave//L&R
1kHz w/emphasis/-0.37dB/L&R
5kHz w/emphasis/-4.53dB/L&R
16kHz w/emphasis/-9.04dB/L&R
NOTE : The contents of Track No. 1 to 41 are the same as those of the current TEST DISC-their titles are displayed.
– 5 –
Table 2: CD-TEXT TEST DISC Recorded Contents and Display
(In this unit, some special characters cannot be displayed. This is no a fault.)
TRACK
No.
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
to
99
Recorded contents Display
! ” # $ %& ´ (21h to 27h)1kHz 0dB L&R
( ) + , – . / (28h to 2Fh)
*
01234567 (30h to 37h)
8 9 : ; < = > ? (38h to 3Fh)
@A B C D E F G (40h to 47h)
H I J K L MNO (48h to 4Fh)
P QR S T U VW (50h to 57h)
X Y Z [ ¥ ] ^ _ (58h to 5Fh)
a b c d e f g (60h to 57h)
′
h i j k l m n o (68h to 6Fh)
p q r s t u v w (70h to 77h)
~
xyz{I}
(78h to 7Fh)
i¢£¤¥ § (A0h to A7h) 8859-1
¬
≥ C ª
•±23
1
†
º ¿ (B8h to BFh)
–
PR
µ¶ • (B0h to B7h)
′
14123
(A8h to AFh)
4
АБВГДЕЖЗ (C0h to C7h)
ИЙКЛМНОП (C8h to CFh)
DС ТУФХЦ
ШЩЪЫЬY
˙
(D0h to C7h)
Я (D8h to DFh)
абвгдежз (E0h to E7h)
ийклмноп (E8h to FFh)
∂ стуфхц÷ (F0h to F7h)
ÿ (F8h to FFh)
шщъыьy
´
No.66
No.67
to
No.99
N All the same
N All the same
N All the same
N All the same
N All the same
N All the same
N All the same
X Y Z [ \ ] ^ _ (58····
11 a b c d e f g (60····
N All the same
N All the same
–
xyz{I}
i ¤ § (A0····
′
±µ(B0····
(78····
–
(A8···· ≥ C ª
¿ (B8···· †
¢£¥ are not displayed
•23
1
º are not displayed
а б в г Д ЕЖЗ (C0····
ийклмноп(C8····
DСтуфOЦ
ШщъыьY Я(D8····
(D0····
is not displayed
N All the same
N All the same
ñòóôoö÷(F0····∂ is not displayed
шщъыьy y(F8····
is not displayed
N All the same
N All the same
to
N All the same
¬
PR are not displayed
¶• are not displayed
14123
4
– 6 –
Front Panel
SECTION 2
GENERAL
234 5 6 7 8 9
1
LOCATION OF PARTS AND CONTROLS
1 1/u button
2 DISC 1-5 button
3 CONTINUE button
4 SHUFFLE button
5 PROGRAM button
6 REPEAT button
7 DISC CHECK button
8 Display window
9 · (PLAY) button and indicator
10 P (P AUSE) button and indicator
11 p (STOP) button
12 EX-CHANGE button
13 DISC SKIP button
14 § OPEN/CLOSE button
15 ≠ AMS* ± /(DISC)/(PUSH ENTER) knob
16 MEGA CONTROL button and indicator
17 X-FADE button and indicator
18 NO DELAY button and indicator
19 CLEAR button
20 CHECK button
21 + (– AMS* +) button
22 = (– AMS* +) button
23 PEAK SEARCH button
24 EDIT/TIME FADE button
25 TIME/TEXT button
26 FADER button
27 INPUT button
28 PHONES jack
11 12 13 14
10
15
16171819202122232425262728
* AMS is abbreviation for Automatic Music Sensor.
– 7 –
SECTION 3
l
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
3-1. CASE AND FRONT PANEL
1
Two screws
(M3x8)
!º
Two screws
(BVTT3x8)
9
Flat type wire (9 core)
(MAIN board, to CN403)
4
Case
3
Two screws
(BV3x8)
2
Two screws
(M3x8)
8
Flat type wire (17 core)
(MAIN board, to CN402)
!™
Front panel
!¡
Three screws
(BVTP3x10)
3-2. BACK PANEL AND DISC TABLE
!¢
!∞
Disc table (A)
!™
Bracket (guide B1)
!¡
Screw (BVTP3x8)
!º
Bracket (guide F1)
Disc table (B)
5
Four screws
(BVTP3x10)
!£
Screw (PTPWH3x12)
1
6
Three screws
(BVTP3x10)
Connector (Power cord)
7
Bottom plate
2
Six screws
(BVTP3x10)
3
Back pane
9
Screw (BVTP3x8)
8
Bracket (guide F1)
7
Screw (BVTP3x8)
– 8 –
4
Flat type wire (6 core)
(MAIN board, to CN404)
6
Bracket (guide B1)
5
Screw
(BVTP3x8)
)
)
3-3. BASE UNIT
4
Two screws
(PTPWH2.6x6)
6
Compression spring (BU)
5
Holder (BU)
2
Screw
(M3x12)
3
Two screws
(PTPWH2.6x6)
8
Base unit (BU-5BD25)
1
Flat type wire (16 core
(BD board, to CN101)
7
Compression spring (BU)
3-4. BRACKET (GEAR) ASSEMBLY
3 Stopper washer (5)
4 Gear (MAIN)
5 Screw
(BVTP3x8)
6 Rotary encoder
1
Stopper washer (5)
2 Gear (REV)
7
Stopper washer (5)
8
Gear (U/D)
9
Five screws
(BVTP3x8)
!º
Bracket (GEAR
assembly
– 9 –
SECTION 4
r
TEST MODE
ADJ MODE
NOTE : This mode cannot be performed without a general remote
commander.
1. Chuck the CD first, and then turn OFF the power.
2. Short-circuit the test point (TP1:ADJ) of the main board and
ground with a lead wire.
3. Press the 1/u button to turn ON the power.
The CD is played back automatically and the ADJ mode is set.
4. To exit the mode, press the 1/u button to turn OFF the power.
• Prohibits high speed search during accessing
• Ignores even if GFS becomes L
ADJ Mode Special Function Table
Button Function
3
Tracking servo, sled servo OFF
8
Tracking servo, sled servo ON
* Set the COMMAND MODE switch to CD1.
FLUORESCENT INDICATOR TUBE, LED ALL LIT,
AND KEY CHECK MODE
1. Short-circuit the test (TP2:AFADJ) of the main board and ground
with a lead wire.
2. Press the 1/u button to turn ON the power.
The whole fluorescent indicator tube lights up.
Nothing will be displayed when the SRAM is faulty or improperly
soldered.
3. All buttons have individual button numbers.
When a button is pressed, the button number is counted up and
displayed.
10
Count up display Displays button numbe
When remote controller signals are received, “RM **” will be
displayed.
(** are the numbers corresponding to the remote controller keys.)
When using the remote controller, switch the COMMAND MODE
switch to CD1.
4. To exit the mode, press the 1/u button to turn OFF the power.
Buttons and Corresponding Button Numbers
Button Button Number or Display
CONTINUE
SHUFFLE
PROGRAM
REPEAT
DISC CHECK
DISC1
DISC2
DISC3
DISC4
DISC5
· (PLAY)
P (PAUSE)
p (STOP)
EX-CHANGE
DISC SKIP
§ OPEN/CLOSE
AMS (button)
AMS (knob)
MEGA CONTROL
X-FADE
NO DELAY
CLEAR
CHECK
)
0
PEAK SEARCH
EDIT/TIME FADE
TIME/TEXT
FADER
INPUT
20
21
22
31
30
25
26
27
28
29
Partial lighting 1 (Grid check)
5
Partial lighting 2 (Segment check)
3
2
All lit (LED lighting)
0
When rotated clockwise: The music calendar
numerals light up in ascending order.
When rotated counterclockwise: The music
calendar numerals light up in descending order.
14
8
9
10
11
12
13
16
17
18
24
19
[MAIN BOARD] – CONDUCTOR SIDE –
CN402
IC302
TP1
(ADJ)
TP2
(AFADJ)
– 10 –
All lit
Partial lighting 1
Light alternately
˜
12345
678910
11 12 13 14 15
16 17 18 19 20
Partial lighting 2
Light alternately
˜
Light alternately
˜
– 11 –
AGING MODE
This unit is equipped with an aging mode to check operations
of the mechanism deck.
• When faults occur:
Aging stops, and the state when aging stopped is displayed on the
fluorescent display tube.
• When no fault has occurred:
Aging is continued repeatedly.
Note:Do not use the test disc when performing aging.
Aging will not be performed properly if discs with tracks
shorter than 4 seconds are used.
Aging method 1
(When using the aging mode remote controller (J-2501-123-A):
1. Set the COMMAND MODE switch to CD1.
2. Press the 1/u button and turn ON the power.
3. Set discs on all trays.
(More than two discs if five are not available.)
4. Press the AGING STAR T button of the aging remote controller.
5. Aging starts and the message shown in Fig. 1 is displayed on the
fluorescent display tube.
6. To end, press the 1/u button.
Aging method 2
(When no aging mode remote controller):
1. Press the 1/u button and turn ON the power.
2. Set discs on all trays.
(More than two discs if five are not available.)
3. Press the § OPEN/CLOSE button, CHECK button, and DISC
1 button in this order together.
4. Aging starts and the message shown in Fig. 1 is displayed on the
fluorescent display tube.
5. To end, press the 1/u button.
Fig. 1 Aging Operations and Their Messages
Code No. State
1
2
3
4
5
6
7
8
9
A
0
TOC reading
Accessing last track
Playing back last track (3 seconds)
EX-CHANGE (Tray opened while chucking)
DISC SKIP (Disc tray rotated)
CLOSE (Tray closed)
Accessing first track
Playing back first track (3 seconds)
OPEN (Tray opened)
DISC SKIP (Disc tray rotated, and next disc was selected)
CLOSE (Tray closed)
Display when Normal
AGING 1
AGING 2
Counter display
AGING 4
AGING 5
AGING 6
AGING 7
Counter display
AGING 9
AGING A
AGING 0
Display when Abnormal
AGING NG1
AGING NG2
AGING NG3
AGING NG4
AGING NG5
AGING NG6
AGING NG7
AGING NG8
AGING NG9
AGING NGA
AGING NG0
The discs are selected in the order of DISC 1 n DISC 2 n DISC 3 n DISC 4 n DISC 5 n DISC 1 n .... Empty trays are skipped.
– 12 –
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