Sony CDP-EX880 Service Manual

CDP-EX880/MS717

SERVICE MANUAL

CDP-EX880/MS717 are the CD player
section in DHC-EX880MD/MD717.

Photo: CDP-MS717

SPECIFICATIONS

AEP Model

UK Model

CDP-EX880

E Model

Tourist Model

CDP-MS717

Model Name Using Similar Mechanism HCD-MD515
CD Mechanism Type CDM48B-5BD29
Base Unit Type BU-5BD29
Optical Pick-up Type KSS-213BA/F-NP

MICROFILM

COMPACT DISC PLAYER

SELF DIA GNOSTIC FUNCTION

This set can display the error history using the self diagnostic func­tion.

1. OPERATING THE DISPLAYED HISTORYS

1. Press the [DISCSKIP] button, [CLEAR] button, and

[PROGRAM] button simultaneously and enter the test mode.

2. Press the [PROGRAM] button, and mechanical error count
and the count of “NO DISC” that optical system judged are
displyed.

3. Under this condition press the buttons in Table 1, and the re­spective operations are executed as listed below.

Table 1.

Button Function

CD 1

CD 2

§ (CD 1) Reset the count of mechanical error.

§ (CD 2) Reset the count of “NO DISC”.

(*1) Mechanical error code

Mechanical error cord from latest one to last ten are dis­played each time this button is pressed. (*1)

The reasons of “NO DISC” from latest one to last ten are
displayed each time this button is pressed. (*2)

M0 =

* ******

(d) The status, when judged NO DISC error.

“3*” : Stop
“4

” : Set up

*

“5*” : TOC read
“6

” : Access

*

“7*” : Play
“8

” : Pause

*

“9*” : Manual search (Play)
“A

”: Manual search (Pause)

*

(a) (b) (c) (d)

(a) The number of Mechanical error.

Latest one “00” to last ten “09”

=+

(Turn the
No.)

(b) “FF” : Mechanical error, when mechanical initialize to

Others: Mechanical error in the midst of mechanical initialize.

(c) “4

“5

(d) “2

(*2) NO DISC error code

(a) The number of NO DISC error.

Latest one “00” to last ten “09”
(Turn the
No.)

[SELECTOR] dial and change the error

completion.

” : Mechanical error in the midst of mechanical initial-

*

ize, when sub tray set into the stocker.

” : Mechanical error in the midst of mechanical initial-

*

ize, when sub tray take out to the stocker.

” : Mechanical error in the midst of elevator moving.

*

D0 =

* ******

(a) (b) (c) (d)

=+

[SELECTOR] dial and change the error

(b) “01”: Focus error

“02”: GFS error
“03”: Set up error

(c) “00”: NO DISC error (Does not chucking retry)

“02”: NO DISC error (Chucking retry to completion)

– 2 –

SECTION 1

SERVICING NOTES

TABLE OF CONTENTS

SELF DIAGNOSTIC FUNCTION................................ 2

1. SERVICING NOTES ............................................... 3

2. GENERAL ................................................................... 7

3. DISASSEMBLY ......................................................... 8

4. TEST MODE.............................................................. 13

5. ELECTRICAL ADJUSTMENTS......................... 13

6. DIAGRAMS

6-1. Schematic Diagram – BD Section – ............................... 16

6-2. Pr inted Wiring Board – BD Section – ........................... 19

6-3. Pr inted Wiring Boards – MAIN Section – .................... 21

6-4. Schematic Diagram – MAIN Section – ......................... 23

6-5. Schematic Diagram – PANEL Section – ....................... 27

6-6. Pr inted Wiring Boards – PANEL Section – .................. 31

6-7. IC Pin Function Description ........................................... 37

7. EXPLODED VIEWS ................................................ 40

8. ELECTRICAL PARTS LIST ............................... 44

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, 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 waveforms is output three times.

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 the 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.

– 3 –

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.

CAUTION

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra­diation exposure.

This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.

POWER SUPPLY DURING SERVICING

• As this set has not own power supply, it does not operate inde­pendently.
Therefore, during servicing, connect it to the Pre-Main ampli­fier Unit (TA-EX880/MS717) of DHC-EX880MD/MD717.
Also, connect the Tuner Unit (ST-EX880/MS717) because the
POWER switch is not provided to the Pre-Main amplifier Unit
(TA-EX880/MS717).

SYSTEM CONTROL terminal

Set

SYSTEM CONTROL terminal

Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.

The following caution label is located inside the unit.

CAUTION :

INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.

ADVARSEL :

SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE
FOR STRÅLING.

VORSICHT :

ABDECKUNG GEÖFFNET UND SICHEREITSVERRIEGELUNG
ÜBERBRÜCKT. NICHT DEM STRAHL AUSSETZEN.

VARO!:

TIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.

VARNING :

OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN.

ADVERSEL :

SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.

VIGYAZAT!:

GÁRVESZÉLY

INVISIBLE LASER RADIATION WHEN OPEN AND

USYNLIG LASERSTRÅLING VED ÅBNING NÅR

UNSICHTBARE LASERSTRAHLUNG, WENN

AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT -

OSYNLING LASERSTRÅLING NÄR DENNA DEL ÄR ÖPPNAD

USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG

A BURKOLAT NYITÁSAKOR LÁTHATATLAN LÉZERSU-

!

KERÜLJE A BESUGÁRZÁST!

MODEL IDENTIFICATION

– Back Panel –

PART No.

CDP-EX880 : 4-995-118-1
CDP-MS717: 4-995-118-2

π
π

Pre-Main AMP

AC IN jack

Unit

(TA-EX880/MS717)

SYSTEM CONTROL terminal

Tuner Unit

(ST-EX880/MS717)

Connector cable
(attached to the set) (17P)

AC plug cord

AC IN

If TA-EX880/MS717 and ST-EX880/MS717 are not available,
use the Power Feed Jig (PFJ-1).
In this case, turn on the POWER switch on the Power Feed Jig,
then press [] button and [CLEAR] button on the set simulta-

p

neously, so that the power is supplied.

Connection:

Power feed jig (PFJ-1)

Set

POWER SW

– 4 –

P707, 909
CDP/TC

CN501 17P

SYSTEM CONTROL

Connector cable 17P

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 power, set the disc to the disc table 1 with the “test disc” label facing up, and chuck the disc.

2. Press the fl button and play back the disc.

3. The following will be displayed on the fluorescent indicator tube.
Display : 1kHz/0 dB/ L&R

4. Rotating = SELECTOR + knob, select 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 : 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 1kHz/0dB/L&R 22 1kHz/-90dB/L&R
2 20Hz/0dB/L&R 23 Infinity Zero w/o emphasis//L&R
3 40Hz/0dB/L&R 24 Infinity Zero with emphasis//L&R
4 100Hz/0dB/L&R 25 400Hz+7kHz(4:1)/0dB/L&R
5 200Hz/0dB/L&R 26 400Hz+7kHz(4:1)/-10dB/L&R
6 500Hz/0dB/L&R 27 19kHz+20kHz(1:1)/0dB/L&R
7 1kHz/0dB/L&R 28 19kHz+20kHz(1:1)/-10dB/L&R
8 5kHz/0dB/L&R 29 100Hz/0dB/L*

9 7kHz/0dB/L&R 30 1kHz/0dB/L*
10 10kHz/0dB/L&R 31 10kHz/0dB/L*
11 16kHz/0dB/L&R 32 20kHz/0dB/L*
12 18kHz/0dB/L&R 33 100Hz/0dB/R*
13 20kHz/0dB/L&R 34 1kHz/0dB/R*
14 1kHz/0dB/L&R 35 10kHz/0dB/R*
15 1kHz/-1dB/L&R 36 20kHz/0dB/R*
16 1kHz/-3dB/L&R 37 100Hz Squer Wave//L&R
17 1kHz/-6dB/L&R 38 1kHz Squer Wave//L&R
18 1kHz/-10dB/L&R 39 1kHz w/emphasis/-0.37dB/L&R
19 1kHz/-20dB/L&R 40 5kHz w/emphasis/-4.53dB/L&R
20 1kHz/-60dB/L&R 41 16kHz w/emphasis/-9.04dB/L&R
21 1kHz/-80dB/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.

Displayed Contents

TRACK

No.

Displayed Contents

– 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

! ” # $ %& ´ (21h to 27h)1kHz 0dB L&R
( ) + , – . / (28h to 2Fh)

*

01234567 (30h to 37Fh)

8 9 : ; < = > ? (38h to 3Fh)
@A B C D E F G (40h to 47Fh)
H I J K L M N O (48h to 4Fh)
P Q R S T U V W (50h to 57Fh)
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 77Fh)

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

А Б В Г Д ЕЖЗ (C0h to C7Fh)
ИЙКЛМНОП (C8h to CFh)
D СТУФХЦ
ШЩЪЫЬY

˙

(D0h to D7Fh)

ß (D8h to DFh)
à á â ã ä å æ ç (E0h to E7Fh)
ийклмноп (E8h to FFh)
∂ стуфхц÷ (F0h to F7Fh)
шщъыьy

ÿ (F8h to FFFh)

´

No.66
No.67
to
No.99

Display

N All the same
N All the same
N All the same
N All the same
N All the same
N All the same

P Q R S T U V W (50h to 57h)
X Y Z [ ] ^ _ (58····

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

′

/

N All the same

p q r s t u v w (70h to 77h)
xyz{I}

~

(78····
(A0···· All not displayed

(A8···· All not displayed

(B0···· All not displayed

(B8···· All not displayed
AAAAAA C (C0···· Æ is not displayed
EEEEIIII (C8
D N OOO OO (D0····
O U U U U Y (D8····

is not displayed

ß are not displayed
aaaaaa c (E0···· æ is not displayed
eeeeiiii (E8····
dnooooo (F0···· ÷ is not displayed
o u u u u y y (F8····

is not displayed

N All the same
N All the same

to

N All the same

– 6 –

LOCATION OF CONTROLS

SECTION 2

GENERAL

1 SHUFFLE button
2 CONTINUE button
3 DISC SKIP button
4 REPEAT button
5 CD1-3 indicator
6 CD DISC TRAY
7 CD1-3 button
8 § button (The disc tray open/close)
9 SELECTOR (=/+) CONTROL

0 ENTER/YES button
!¡ MENU/NO button
!™ p button (Stop play)
!£ fl button
!¢ DISPLAY
!∞ 0 N button

) n button

!§ CLEAR button
!¶ DISPLAY button
!• PROGRAM button

– 7 –

SECTION 3

DISASSEMBLY

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

CASE

1

two screws
(case 3 TP2)

2

screw
(BVTT3

×

6)

3

case

1

two screws
(case 3 TP2)

FRONT PANEL SECTION

3

claw

3

claw

4

front panel section

2

three screws
(BVTT3

1

flat wire (17 core)
(CN351)

×

6)

– 8 –

3

claw

MECHANISM DECK SECTION (CDM48B-5BD29) , MAIN BOARD

1

two screws
(BVTT3

×

6)

2

Remove the bracket
(sub chassis) to direction
of the arrow.

4

three screws
(BVTT3

×

6)

1

two screws
(BVTT3

×

6)

3

two levers (stock)

5

stocker ass’y

6

two PC board holders

3

mechanism deck section
(CDM48B-5BD29)

5

two screws
(BV3

4

×

10)

7

MAIN board

1

connector (CN201)

1

4

three connectors
(CN391, 392, 393)

flat wire
(CN331)

4

connector
(CN394)

flat wire (11 core)
(CN321)

1

connector
(CN322)

STOCKER ASS’Y

2

four screws
(BVTT3

×

6)

– 9 –

BASE UNIT (BU-5BD29)

y

2

Remove the base unit (BU-5BD29)
to direction of the arrow.

1

TRAY (SUB) ASS’Y

two screws
(BV3

×

8)

1

two screws
(BV3

×

8)

2

tray (sub) ass’

– 10 –

1

Pull the slider (selection).