Sony cdp 338esd User Manual

SERVICE MANUAL

This photo is CDP-338ESD

SPECIFICATIONS

Compact disc player

Frequency response

Signal to noise ratio Dynamic range Harmonic distortion

Channel separation

2 Hz - 20 kHz ± 0.5 dB (CDP-338ESD) 2 Hz - 20 kHz ± 0.3 dB (CDP-608ESD)

More than 113 dB More than 100 dB Less than

0.0022% More than 110 dB

Outputs

LINE OUT (FIXED) (phono jacks)

LINE OUT (VARIABLE) (phono jacks)

DIGITAL OUT

(COAXIAL) (cable)

DIGITAL OUT (OPTICAL) (optical output connector)

HEADPHONES (stereo phone jack)

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 PUB LISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

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 COM POSANTS QUE PAR DES PIECES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

Output level 2 V (at 50 kiloohms) Load impedance over 10 kiloohms

Output level max. 2 V (at 50 kiloohms) Load impedance over 50 kiloohms

Output level max. 0.5 Vp-p Load impedance 75 ohms

Wave length 660 nm Output level — 18 dBm

Output level max. 28 mW Load impedance 32 ohms

À LA SÉCURITÉ!

CD Transport Mechanism Type Optical Pick-Up Block Type

General

Power requirements

Power consumption

Dimensions (approx., including projections)

Weight (approx.)

Canadian Model

Model Name Using Similar Mechanism

AEP Model:

(CDP-338ESD)

220 V AC (or 240 V AC adjustable by Sony personnel), 50/60 Hz

UK Model; (CDP-338ESD)

240 V AC (or 220 V AC adjustable by Sony personnel), 50/60 Hz

US, Canadian Model:

(CDP-608ESD)

120 VAC, 60Hz

E Model: (CDP-338ESD)

110,120, 220 or 240 V AC adjustable, 50/60 Hz

27 W

470X125X375 mm (w/h/d)

(18V bX5X 147 *

inches)

12.5 kg (27 lbs 11 oz)

COMPACT DISC PLAYER

US Model

CDP-608ESD

AEP Model

UK Model

E Model

CDP-338ESD

New

KSS-151A

BU-6B

continued on next page —

CDP-338ESD/608ESD

TABLE OF CONTENTS

Remote commander

Remote control system Power requirements

Dimensions

Weight

Supplied accessories

Connecting cord

Remote commander Size AA batteries Screws

Design and specifications subject to change without notice.

Infrared control 3 V DC with two batteries size AA

(lEC designation R6) 67X20X175 mm (w/h/d)

(2V.X’V,6X 7 inches) 135g(4.7oz)

Including batteries

(2 phono plugs 1 2 4

2 phono plugs)

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety check 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 TEST

The AC leakage from any exposed metal part to

earth ground and from all exposed metal parts tp 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 instru ments.

2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.

Section Title

1. GENERAL

1-1. Location of Controls.....................................................3

2. ELECTRICAL ADJUSTMENTS

.......................................

3. DIAGRAMS

3-1. Circuit Boards Location ..............................................7

3-2. Printed Wiring Boards.................................................9

3-3. Schematic Diagram.....................................................13

3- 4. Semiconductor Lead Layouts

.............

4. EXPLODED VIEWS

4- 1. Cover Section 4-2. Front Panel Section

.......................................

...................................................

4-3. Chassis Section............................................................23

4-4. Mechanism Section.....................................................24

4-5. Optical Pick-Up Block Section

5. ELECTRICAL PARTS LIST

.................................

..............................................

3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC volt meter. The “limit” indication is 0.75 V, so analog meters must have an accurate lowvoltage 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)

To Exposed Meta!

Parts on Set

0.15pF -p

Fig. A. Using an AC voltmeter to check AC leakage.

•I.Skii

— Earth Ground

voltmeter (0.75 Vi

Page

21 22

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 breakdown because of the poten tial 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.

CAUTION Use of controls or adjustments or performance

of procedures other than those specified herein may result in hazardous radiation exposure.

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 check ing the laser diode emission, observe from more than 30 cm away from the objective lens.

MODEL IDENTIFICATION — Label Model Number —

SONY®

COMPACT DISC PLAYER

□

1-1. LOCATION OF CONTROLS

CDP-338ESD only

MODEL No.

CDP-338ESD CDP-608ESD

US model Canadian model AEP model UK model

,E model

SECTION 1

GENERAL

AC :120V 60Hz 27W AC :120V 60Hz 27W AC:220V~50/60Hz 27W AC:240V~50/60Hz 27W AC:no, 120, 220, 240V~50/60Hz

27W

HJ Disc tray

[3] TIME/MEMO button [3 Remote sensor H] AUTO SPACE (auto space) button [1] Display window [7] (manual search) buttons [U CHECK (program check) button H] PLAY MODE buttons

PROGRAM button SHUFFLE button CONTINUE/SINGLE button

CUSTOM INDEX button m CLEAR (program clear) button [HI Numeric buttons [12] >20 (over 20) button m DISPLAY ON/OFF button 111 LINE OUT/PHONE LEVEL control

^ HEADPHONES jack

H EDIT/TIME FADE button Hz) ERASE (memory erase) button 01 FILE (custom file) button 01 ►W (AMS*) buttons

[^ FILE RECALL button

■ (stop) button

^ FADER (fade in/fade out) button

^ II (pause) button

M REPEAT button

H ► (play) button

± (open/close) button

iZi DIGITAL OUTPUT ON/OFF button ^ Timer switch

*AMS is the abbreviation of Automatic Music Sensor.

A (open/close) button

FILE RECALL button DISPLAY ON/OFF button Numeric buttons ERASE button FILE (custom file) button

m [g

◄◄ ►► (manual search) buttons

AMS buttons

INDEX buttons

^ ►► SLOW (low speed manual search)

buttons FADER (fade in/fade out) button LINE OUT VOLUME (line out/headphone volume) buttons TIME button CLEAR (program clear) button A«—repeat button

CHECK button

■ (stop) button

II (pause) button

► (play) button CLEAR/REPEAT (A<-^B repeat clear/repeat) button

>20 (over 20) button

PLAY MODE buttons

PGM (program button) SHUFFLE button CONTINUE button SINGLE button C. INDEX button

SECTION 2 ELECTRICAL ADJUSTMENTS

1. Perform adjustments in the order given.

2. Use YEDS-18 (Part No: 3-702-101-01) disc unless otherwise indicated.

3. Use the oscilloscope with more than 10 Mil impedance.

RF PLL Frequency Adjustment

Procedure:

frequency counter

main board

TP (PCK) O-

■O +

1. Connect the frequency counter to test point TP (PCK).

2. Turn POWER switch on.

3. Adjust RV201 so that the reading on the frequency counter is

4.3218MHz ±30kHz

4. Put disc (YEDS-18) in and press D> button.

5. Confirm that the reading on frequency counter is 4.3218MHz.

E-F Balance Adjustment

This adjustment should be made when replacing TOP (T-type

Optical Pick-up).

Procedure:

Focus Bias Adjustment

This adjustment should be made when replacing TOP (T-type

Optical Pick-up).

Procedure;

oscilloscope (DC range)

main board

TP (RF) o-

-0

-o -

Connect oscilloscope to test point TP (RF). Turn POWER switch on. Put disc (YEDS-18) in and press > button. Adjust RV104 for an optimum waveform eye pattern or so that

the peak is maximum. Optimum eye pattern means that shape “O” can be clearly distinguished at the center of the waveform.

RF signal waveform

oscilloscope

(DC range)

main board

TP (TEO) o-

77Г

O-t-

1. Connect oscilloscope to test point TP (TEO).

2. Connect test point TP (ADJ) and test point TP (TES) to ground with lead wire.

3. Turn POWER switch on.

4. Put disc (YEDS-18) in and press > button.

5. Adjust RVlOl so that the traverse waveform is symmetrical above and below.

6. After adjustment, remove the lead wire connected in step 5.

Note: Prom inent that make a

long of sweep tim e.

OV-

A = B

(within 5%)

A = B (within5%)

VOLT/DIV: IV TIME/DIV: 1ms

A = 1.3±0.3 (Vp-p)

Adjustment Location :main board

E-F

BALANCE

ADJ

(ADJ

I TES 1 TEO

[ RVlOl

RF PLL FREQUENCY ADJ

PCK \

RV201 I

SECTION 3

DIAGRAMS

CDP-338ESD/608ESD

REFERENCE

Focus/Tracking Gain Adjustments

A frequency responce analyzer is necessary in order to perform

this adjustment exactly.

However, this gain has a margin, so even if it is slightly off,

there is no problem. Therefore, do not perform this adjustment.

Focus/tracking gain determines the pick-up follow up (vertical and horizontal) relative to mechanical noise and shock when the 2-axis device operate.

However, as these reciprocate, the adjustment is at the point where both are satisfied.

• When gain is raised, the noise when the 2-axis device operates increases.

• When gain is lowered, mechanical shock and skipping occurs more easily.

• When gain adjustment is off, the symptoms below appear.

Symptoms

Gain

Focus

Tracking

• The time until music starts becomes longer for ■ ^ O or automatic selection. (Kl<l, [>t>l but

low

low or high

tons pressed.) (Normally tapes about 1 seconds.)

• Music does not start and disc continues to rotate for ■ -> > or automatic

low

selection.

(KKl, OCH buttons pressed.)

• Disc table opens shortly after ■->•[>.

low or high

• Sound is interrupted

during PLAY or time counter display stops

— low

progressing.

• More noise during 2-axis

device operation.

high

1. Keep the set horizontal. If the set is not horizontal, this adjustment \

(

cannot be performed due to the gravity against the 2-axis device. /

2. Insert disc (YEDS-18 : Fifth Selection) and press 0 button.

3. Connect oscilloscope to main board TP (FEO).

4. Adjust RV103 so that the waveform is as shown in the figure

below, (focus gain adjustment)

5. Connect oscilloscope to main board TP (TEO).

6. Adjust RV102 so that the waveform is as shown in the figure

below, (tracking gain adjustment)

VOLT/DIV: lOOmV TIME/DIV: 2ms

100 mV

' Incorrent Examples (DC level changes more than on adjusted

waveform)

_______

low focus gain

V *V '/

high focus gain

VOLT/DIV: lOOmV TIME/DIV: 2mS

-250mV

VOLT/DIV: lOOmV TIME/DIV: 2mS

Incorrect Examples (fundamental wave appears)

low tracking g ain

high tracking gain (higher fundamental wave than for low gain)

Adjustment Location : main board

VOLT/DIV: IV TIME/DIV: 2mS

-OV

VOLT/DIV: IV TIME/DIV : 2m S

3-1. CIRCUIT BOARDS LOCATION

POWER BOARD

The following is a simple adjustment method.

—Primary Adjustment-

Note : Since exact adjustment cannot be performed, remember

the positions of the controls before performing the adjust ment. If the position after the primary adjustment are only a little different, return the controls to the original posi tion.

Procedure :

oscilloscope

(DC range)

main board

TP (FEO) O

TP (TEO) o^- -

I ,

------------

0 +

TEO , RV102

CDP-338ESD/608ESD

• Semiconductor Location

Ref.No. Location Ref. No.

DlOl J-5 D381 D-10 D391 F-26 D802 G-16 D901 D902 1-11 D903 D904 D950 1-10 D951 1-9 D952 D953 1-9 D955 1-8 D956 D957 D958 D961 1-9 D962 1-9

1-11

1-10 1-10

1-9

1-8 G-8 1-9

Q383 G-9 Q801 Q802 1-21 Q901 Q902 E-10 Q950 Q951 Q952 Q961

CDP-338ESD/608ESD CDP-338ESD/608ESD CDP-338ESD/608ESD CDP-338ESD/S08ESD

Location

H-20

E-10

G-9 H-9 1-8 H-8

ICIOI H-5 IC201 IC202 H-3 IC204 IC302 E-5 IC303 F-6 IC351 C-3 IC352 IC353 1C354 IC356 IC357 1C358 IC391 IC401 IC402 IC501 IC502 E-9 IC801 1-21 IC802 1-17 IC901 G-11 IC902 IC903 C-7 IC905 G-9

QlOl 1-5 Q205 Q206 E-2 Q381 Q382 F-7

H-2

F-3

B-3 D-7 C-6 C-11 C-11 F-9 E-24 C-8 C-9 E-8

G-10

E-2

G-10

Note on Printed Wiring Board;

: parts extracted from the component side, indicates side identified with part number.

: Jumper wire connected to the ground pattern on

the component side.

: parts mounted on the conductor side.

-8-

+ 14 hidden pages