Sony CDP-CA80ES Service manual

CDP-CA80ES

MICROFILM

SERVICE MANUAL

US Model

AEP Model

E Model

Model Name Using Similar Mechanism CDP-CA8ES
CD Mechanism Type CDM27I
Base Unit Name BU-5BD25
Optical Pick-up Name KSS-213B/S-N

SPECIFICATIONS

Compact Disc Player

Laser Semiconductor laser (λ = 780 nm)

Laser output Max 44.6 mW*

Frequency response 2 Hz to 20 kHz ± 0.3 dB
Signal-to-noise ratio More than 117 dB
Dynamic range More the 99 dB
Harmonic distortion Less than 0.0025%
Channel separation More than 110dB

Output

LINE OUT Phono 2V

DIGITAL OUT Optical –18 dBm Wave length:
(OPTICAL) output 660 nm

PHONES Stereo 15 mW 32 ohms

Emission duration: continuous

* This output is the value measured at a

distance of 200 mm from the objective
lens surface on the Optical Pick-up
block with 7 mm aperture.

Jack Maximum Load
type output impedance

level

Over 10 kilohms

jacks (at 50 kilohms)

connector

phone jack

General
Power requirements

Where purchased Power requirements

USA 120 V AC, 60 Hz
Europe 220 V – 230 V AC, 50/60 Hz
Other countries 110 V – 120 V AC or 220 V – 240 V AC

Power consumption 15W
Dimensions (approx.) 430 × 125 × 400 mm
(w/h/d) (17 × 5 × 15
Mass (approx.) 7 kg (15 lbs 7 oz)

Supplied accessories

Audio cord (2 phono plugs–2 phono plugs) (1)
Remote commander (remote) (1)
Sony SUM-3 (NS) batteries (2)

Design and specifications are subject to change without notice.

adjustable, 50/60 Hz

3

/4 in.) incl. projecting parts

COMPACT DISC PLAYER

TABLE OF CONTENTS

1. GENERAL ······································································ 7

2. DISASSEMBLY

2-1. Front Panel ······································································· 11
2-2. Disc Table Assy ································································ 11
2-3. Back Panel and Disc Table ··············································· 12
2-4. Optical Pick-up Block Assembly ····································· 12
2-5. Bracket (Gear) Assembly ················································· 13

3. TEST MODE ································································ 14

4. ELECTRICAL BLOCK CHECKING···················· 17

5. DIAGRAMS

5-1. Circuit Boards Location ··················································· 19
5-2. Block Diagram ································································· 21
5-3. Schematic Diagram — BD Section —·····························23
5-4. Printed Wiring Board — BD Section — ·························· 25
5-5. Printed Wiring Board — Main Section — ······················· 27
5-6. Schematic Diagram — Main Section (1/2)— ·················· 29
5-7. Schematic Diagram — Main Section (2/2)— ·················· 31
5-8. Schematic Diagram — HP/Function Section — ·············· 33
5-9. Printed Wiring Board — HP/Function Section — ··········· 34
5-10. Schematic Diagram — Display Section — ······················ 35
5-11. Printed Wiring Board — Display Section — ··················· 37
5-12. IC Block Diagrams ··························································· 39
5-13. IC Pin Functions ······························································· 42

MODEL IDENTIFICATION
— BACK PANEL —

PARTS No. MODEL

4-998-478-0π
4-998-478-2π
4-998-478-4π
4-998-478-5π

US
E
SP
AEP

PART NO.

6. EXPLODED VIEWS

6-1. Front Panel and Case Section ··········································· 46
6-2. Back Panel and Disc Tab le Section ·································· 47
6-3. Chassis Section·································································48
6-4. Base Unit Section (BU-5BD22) ······································· 49

7. ELECTRICAL PARTS LIST ··································· 50

— 2 —

SAFETY CHECK-OUT

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
PRODUCT 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.

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 A C 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 microamperes).
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. Follo w 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 v oltmeter . 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.

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 breakdo wn 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

T o Exposed Metal

Parts on Set

AC

µ

F

0.15

Fig. A. Using an A C v oltmeter to check A C leakage.

1.5 k

Ω

Earth Ground

Voltmeter
(0.75 V)

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 pick­up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

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 .

— 3 —

SERVICING NOTE

HOW TO OPEN THE DISC TRAY WHEN POWER
SWITCH TURNS OFF

IN

OUT

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 driver in the reverse direction

(to IN direction).

Tray

NOTE FOR MAIN GEAR INSTALLATION

5

Stopper washer (5)

4

Install the MAIN GEAR

as show in the drawing.

3

Rotate the GEAR (U/D)

to the arrow

A

A

direction.

B

2

Slide the SET LEVER to the

arrow

B

direction.

— 4 —

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 DISC 2 button and 3 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 test 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. Turn ON the po wer , set the disc on the disc table with the side labeled as “test disc” as the right side, close the front cov er, 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. Press the ≠ 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 “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 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)

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

* Other channel is infinity zero.

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

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

! ” # $ %& ’ (21h to 27h)1kHz 0dB L&R

( ) + , – . / (28h to 2Fh)

*

01234567 (30h to 37h)
8 9 : ; < = > ? (38h to 3Fh)

@A B C D E FG (40h to 47h)

H I J K L MNO (48h to 4Fh)
P Q R S T UVW (50h to 57h)
X Y Z [ ¥ ] ^ _ (58h to 5Fh)

a b c d e f g (60h to 67Fh)

′

h i j k l m n o (68h to 6Fh)
p q r s t u v w (70h to 77h)
x y z { I } (78h to 7Fh)

~

i ¢ £ ¤ ¥ § (A0h to A7h) 8859-1

¬

C ª

•±23

1

†

º ¿ (B8h to BFh)

–

PR

µ ¶ • (B0h to B7h)

′

1

2

4

(A8h to AFh)

341

À Á Â Ã Ä ÅÆÇ (C0h to C7h)

ИЙКЛМНОП (C8h to CFh)
D СТУФХЦ
ШЩЪЫЬY

˙

(D0h to D7Fh)

ß (D8h to DFh)

абвгдежз (E0h to E7h)
ийклмноп (E8h to EFh)
∂ стуфхц÷ (F0h to F7h)
шщъыьy

ÿ (F8h to FFh)

´

No.66
No.67
to
No.99

Display

0 dB L & R are not displayed

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}–(78····

i ¤ § (A0···· ¢ £ ¥ are not displayed

–

(A8···· ≥ C ª¬PR are not displayed

±µ(B0····

′

¿ (B8···· †

•23

¶• are not displayed

341

1

1

º are not displayed

2

4

а б в г Д ЕЖЗ (C0····
ийклмноп(C8····
D С т у ф O Ц (D0····
ШщъыьY Я(D8···· 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

— 6 —

Identifying the Parts

Front Panel

SECTION 1

GENERAL

1 2 3456 7

1 POWER (1/u) switch
2 DISC (1–5) buttons
3 CONTINUE button
4 SHUFFLE button
5 PROGRAM button
6 EX-CHANGE button
7 DISC SKIP button
8 § OPEN/CLOSE button

9 ” (CD PLAY) button
!º p (CD STOP) button
!¡ PHONE LEVEL button
!™ P (pause) button
!£ PHONES jack
!¢ TIME/NEXT button
!∞ REPEAT button
!§ AMS (≠ ±) buttons
!¶ Numeric buttons

8

9
!º

!¡!™!£!¢!∞!§!¶

— 7 —

This section is extracted
from instruction manual.

— 8 —

— 9 —

— 10 —

SECTION 2

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

2-1. FRONT PANEL

1 Remove top cover.
2 Eject the disc table referring to SERVICING NOTE (Page 4).

9

Two screws

+BVTP 2.6 × 8

Disc table

8

Three screws

+BVTT 3 × 6

0

Front panel

Loading panel

7

Three screws

M 3 × 12

2-2. DISC T ABLE ASSY

1

Two screws

BVTP 3

4

3

6

Two screws

+BVTT 3 × 8

×

8

5

Reinforcement (panel)

7

Disc table assy

3

4

!º

Chucking yoke

3

5

Loading panel

Chucking yoke

3

Bracket (guide B1)

2

Two screws

+BVTP 3

4

Bracket (guide F1)

9

Pulley(L),

press

Pulley(L), press

8

Push one side and

6

×

8

4

Bracket (guide F1)

2

Two screws +BVTP 3 × 8

Flat type wire

3

Bracket (guide B1)

disconnect a lock.

Magnet

— 11 —

2-3. BACK PANEL AND DISC TABLE

)

5

Disc table (B)

Disc table (A)

4

Screw

(M 3

×

12)

3

Back panel

1

Connector

2

Five screws

(BVTP 3

×

10

2-4. OPTICAL PICK-UP BLOCK ASSEMBLY

3

Two screws

(PTPWH 2.6 × 6)

6

Compression spring (BU)

5

Holder (BU)

2

Screw

(M 3 × 12)

4

Two screws

(PTPWH 2.6 × 6)

8

Optical pick-up block assembly

1

Flat type wire (23 core)

(BD board, to CN101)

7

Compression spring (BU)

— 12 —

2-5. BRACKET (GEAR) ASSEMBLY

)

3

Stopper washer (5)

4

Gear (MAIN)

5

Screw

(BVTP 3 × 8)

6

Rotary encoder

1

Stopper washer (5)

2

Gear (REV)

7

Stopper washer (5)

8

Gear (U/D)

9

Five screws

(BVTP 3 × 8)

!º

Bracket (GEAR

assembly

Note : As for the installation of the main gear, refer to “Note for MAIN

GEAR installation” on page 4.

— 13 —

SECTION 3

r

TEST MODE

ADJ MODE

1. Chuck the CD first, and then turn OFF the power.

2. Short-circuit the test point (TP2: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

FLUORESCENT INDICATOR TUBE, LED ALL LIT,

AND KEY CHECK MODE

1. Short-circuit the test (TP1:AF ADJ) 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
TIME/TEXT
DISC CHECK
DISC1
DISC2
DISC3
DISC4
DISC5

( (PLAY)
P (PAUSE)
p (STOP)

EX-CHANGE
DISC SKIP

§ OPEN/CLOSE
AMS ±
AMS ≠
1
2
3
4
5
6
7
8
9
10
>10

18
17
16
9
8
30
23
22
21
20
19
Partial lighting 1 (Grid check)
28
Partial lighting 2 (Segment check)
24
25
All lit (LED lighting)
30
31
4
3
2
1
0
15
14
13
12
11
10

[MAIN BOARD] – CONDUCTOR SIDE –

IC501

TP2

(ADJ)

R544

TP1

(AFADJ)

— 14 —

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

˜

— 15 —