Sony d 155 service manual

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D-155

SERVICE MANUAL

AEP Model
UK Model
E Model

System
Cnmpact disc digital audio syslcm
Laser diode properties
Malcrial: GuAIAs
Wavelengllt: A = 780 um
Emission duration: Continuous
Laser output: Less than 44.6 uW (measured at
200 mm away firm the objcclive lens surlacc)
Error correction
Sony Super Strategy Cross Inlerleave Reed
Sultmtolt Code
D-A conversion
l-bu quartz timeaxis cuttlrnl
Frequency response
20 r 20,000 mi) dB (measured by EM] CP-307I
Output (at 4.5 V input level)
Headphones (stereo minijack)
20 raw 1» 20 [NW at I6 Mints
Linc output (stereo ntinijnck)
Oulpul level 07 V this all 47 kilohnts
Recutttmellded load impedance over I0 kiloltms

Model Name Using Similar Mechanism NEW
CD Mechanism Type COM-151
Optical Pick-Up Name BAX-11A

SPECIFICATIONS

General
Power requirements
- Rechargeable buttery: 2.4 V DC
~ Twn LRI) (size AA) batteries: 3 V DC
~ AC power adaptor (DC [N 4.5 v jack):
210 , 230 V. 50 HZ (European and Asian model)
230 - 240 V, 50 H7 (UK. model)
I00 A 240 V, 50/60 Hz (Model for other
Countries and World model)
. Sony CPM-300P mounl plate and DCC-E245
car battery cord for use on car battery: 45 V DC
Dimensions (wlhld) (without projecting parts
and controls)
Approx. 135 X 30.5 X 156 ntnt
(5 3/3 xl ll4>< 6 1/4 in)
Mass (without rechargeable battery)
Approx 250 g (83 oz)
Operating temperature
5°C - 35C (41°F - 95°F)

Supplied accessories
AC power adaptor (AC»B45SA/B455D) (1)
Stereo headphone RM-D23 with
remote control MDR-E741MP (1)
Connecting cord (Pliouo plug x 2 H stereo
ntiniplug) m
Rechargeable battery 3mm 0 (1)

Design and specifications are subject to Change
without notice.

COMPACT DISC COMPACT PLAYER
S ONY;

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CAUTION

Use of controls or adjustments or performance 01 proce-
dures other than those specified herein may result in hay.-
ardous radiation exposure.

This Compact Disc player is
classified as a CLASS 1
LASER product.

The CLASS 1 LASER
PRODUCT label is located
on the bottom exterior.

CLASS 1 LASER PRODUCT
LUOKAN 1 LASERLAITE

KLASS I LASERAPPAHAT

Flexible Circuit Board Repairing

0 Keep the temperature of the soldering iron around 270°C during
repairing.

0 Do not touch the soldering iron on the same conductor 01' the
circuit board (within 3 times).

0 Be careful not to apply force on the conductor when soldering or
unsoldering.

Notes on Chip Component Replacement

0 Never reuse a disconnected chip component.

I Notice that the minus side of a tantalum capacitor may be
damaged by heat

SAFETY-RELATED COMPONENT WARNINGI!

COMPONENTS IDENTIFIED EV MARK A 0R DOTTED LINE
WITH MARK A 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.

TABLE OF CONTENTS

1 . GENERAL
Playing a CD right away! .......................................................... 3
Other Operations
Power Sources ..
Additional Infomiation

2. DISASSEMBLY

2-1. Cabinet (Lower) Assy
2-2. MD Assy..
2-3. Main Boar
2-4, Upper Lid Assy

\lecxox

3. SERVICE NOTE .................................................................. 8
4. SERVICE MODE ..................

5. ELECTRICAL ADJUSTMENTS .................................... 10

6. DIAGRAMS

6- 1. IC Pin Description ..
6-2. Printed Wiring Board
6-3. Schematic Diagram

7. EXPLODED VIEWS
7-1. Cabinet Section ..
72. Optical Pick-up Section.

8. ELECTRICAL PARTS LIST ........................................... 28