CDP-CX260 - Sony Audio Service Manual (repair manual)

cdp-cx260 service manual
Model
CDP-CX260
Pages
62
Size
4.17 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cdp-cx260.pdf
Date

Read Sony CDP-CX260 Service Manual online

– 1 –
MICROFILM
CDP-CX260
US Model
Canadian Model
AEP Model
UK Model
SPECIFICATIONS
SERVICE MANUAL
COMPACT DISC PLAYER
Model Name Using Similar Mechanism
CDP-CX200
CD Mechanism Type
CDM-40B
Base Unit Type
KSM-213BKN/M-N
Optical Pick-up Type
KSS-213B/S-N
– 2 –
CAUTION
Use of controls or adjustments or performance of procedures
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
 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.
This appliance is classified as
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.
PARTS No.
MODEL
MODEL IDENTIFICATION
— BACK PANEL —
4-999-021-0π
4-999-021-1π
4-999-021-2π
4-999-021-3π
US
Canadian
AEP
UK
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.
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.
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
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 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)
Fig. A. Using an AC voltmeter to check AC leakage.
PART NO.
0.15
µ
F
To Exposed Metal
Parts on Set
1.5k
AC
voltmeter
(0.75V)
Earth Ground
– 3 –
TABLE OF CONTENTS
1. SERVICING NOTE
.......................................................... 3
2. GENERAL
.......................................................................... 6
3. DISASSEMBLY
3-1. Front Panel Assembly ........................................................... 9
3-2. Back Panel Assembly ............................................................ 9
3-3. Base (Door, Gear) Assembly .............................................. 10
3-4. Table Assembly ................................................................... 10
3-5. Mechanism Deck ................................................................ 11
3-6. Base Unit ........................................................................... 11
4. TEST  MODE
..................................................................... 12
5. ADJUSTMENTS
5-1. Mechanical Adjustment ...................................................... 15
5-2. Electrical Block Adjustment ............................................... 21
6. DIAGRAMS
6-1. Circuit Boards Location ...................................................... 24
6-2. Block Diagrams
• BD Section ........................................................................ 25
• Main Section ..................................................................... 27
6-3. Schematic Diagram – BD Section – ................................... 31
6-4. Printed Wiring Board – BD Section – ................................. 33
6-5. Printed Wiring Board – Main Section – .............................. 35
6-6. Schematic Diagram – Main Section – ................................ 37
6-7. Schematic Diagram – Jack Section – .................................. 39
6-8. Printed Wiring Board – Jack Section – ............................... 41
6-9. Schematic Diagram – Display Section – ............................ 43
6-10. Printed Wiring Board – Display Section – ........................ 45
6-11. Schematic Diagram – Sensor/Motor Section – ................. 47
6-12. Printed Wiring Board – Sensor/Motor Section – .............. 48
6-13. IC Block Diagrams ............................................................ 49
6-14. IC Pin Functions ................................................................ 51
7. EXPLODED VIEWS
7-1. Case and Back Panel Section .............................................. 56
7-2. Disc Table Section .............................................................. 57
7-3. Front Panel Section ............................................................. 58
7-4. Mechanism Section-1 (CDM-40B) ..................................... 59
7-5. Mechanism Section-2 (CDM-40B) ..................................... 60
7-6. Mechanism Section-3 (CDM-40B) ..................................... 61
7-7. Base Unit Section (KSM-213BKN/M-N) ........................... 62
8. ELECTRICAL PARTS LIST
........................................ 63
SECTION  1
SERVICING NOTE
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down 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, ob-
serve from more than 30 cm away from the objective lens.
The emission check enables continuous checking of the S curve.
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 three times.
– 4 –
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:J-2501-126-A) is used for checking the display.
To check, perform the following procedure.
Checking Method:
1. Turn ON the power, set the disc on the disc table with the side labeled as “test disc” as the right side, close the front cover, and chuck the
disc.
2. The following will be displayed on the fluorescent indicator tube. (The display switches each time the  TIME/TEXT  button is pressed.)
Display : Main Artist Test or CD TEXT TEST DISC (Album Title)
3. Press the  ”  button and play back the disc.
4. The following will be displayed on the fluorescent indicator tube. (If nothing is displayed, press the  TIME/TEXT  button.)
Display : 1kHz/0 dB/ L&R
5. Rotate  ≠ and ±  buttons to switch the track. The text data of each track will be displayed.
For details of the displayed contents for each track, refer to “Table 1 : CD-TEXT TEST DISC TEXT Data Contents” and “Table 2 : CD-
TEXT 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 displayed 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)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
TRACK
No.
Displayed Contents
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
TRACK
No.
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
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.
Page of 62
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Download Sony CDP-CX260 Service Manual (Repair Manual)

Here you can read online and download Sony CDP-CX260 Service Manual in PDF. CDP-CX260 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony CDP-CX260 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.