Sony cdp 797 service manual

Page 1

EDP-797

SERVICE MANUAL

AEP Model
UK Model

Model Name Using Similar Mechanism GDP-791
CD Mechanism Type CDMM-SBDBA
Optical Pick-Up Block Type BU-5BDaA

SPECIFICATIONS

Compact disc player
Frequency response
Signal-to-noise ratio
Dynamic range
Harmonic distortion
Channel separation

2 Hz to 20 kHz $0.5 dB
More than 110 dB
More than 98 dB

Less than 0,0027%
More than 105 dB

Outputs
LlNE OUT (FIXED) (phono jacks)
Output level 2 V (at 50 kilohms)
Load impedance over10 kilohms
LINE OUT (VARIABLE) (phono jacks)
Output level max. 2 V (at 50 kilohms)
Load impedance over 50 kilohms
DIGITAL OUT (OPTICAL) (optical output connector)
Wave length 660 nm
Output level -1 8 dBm
PHONES (stereo phone jack)
L Output level max. 10 mW
Load impedance 32 ohms

General

Power requirements AEP, Germany models:

220 V - 230 V AC, 50/60 HZ

UK model:

240 V AC, 50 Hz

Power consumption 12 W

Dimensions (approx, including projections)
430 x 110 x 295 mm (w/h/d)
(17 x 4 5/16 x 11 5/8 inches)

Weight (approx) 3.9 kg (lbs oz)

Remote commander

Remote control system lnlrared control

Power requirements 3 VDC with two R6 (size AA) batteries
Dimensions (approx, including projections)

62 x 18 x 175 mm (w/h/d)

(2 1/2 x 23/32 x 7 inches)

Weight (approx.) 130 9 (4,6 02) Including batteries
Supplied accessories
Audio connecting cord (1) (2 phono plugs - 2 phono plugs)
Remote commander (1)

Sony SUN-3(NS) batteries (2)

Design and specifications are subject to change without notice.

COMPACT nlsc PLAYER
SONYE

Page 2

GDP-797

TABLE OF CONTENTS

Section M Page
Specifications ~~~~~~~~~~ 1
Model Identification 2
Notes on Handling the Optical Pick-Up Block
or Base -Unit ................................... 2
1. GENERAL

Identifying the Parts ...................... 3
2. DISASSEMBLY ......................... 4
3. ELECTRICAL CHECKS ~~~~~~~~~~~~~~~ 5
4. DIAGRAMS
4-1. [0401 ,u PD75216 AGF-660 Pin Function - - - - 7
4.2. Block Diagram ........................... 9
4-3. BD Section Printed Wiring Boards and

Schematic Diagram ....................... 11
4-4. Main Section Printed Wiring Boards - - ~ 14
4-5 Main Section Schematic Diagram ---------- 17
5_ EXPLODED VIEWS .................... 25
6. ' ELECTRICAL PARTS LIST ~~~~~~~~~~~~ 29

MODEL IDENTIFICATION
- Model Number Label ~

SONYs

MODEL N0. COP-797

SERIAL No.

MADE IN JAPAN
MADE IN FRANCE

AEP, Germany model: AC 220 - 230 V ~50/60 Hz
UK model: AC 240 V ~50/60 Hz

*Can be identified MADE IN JAPAN with MADE IN FRANCE
by the label model number. or the Back Panel

LABEL, MODEL NUMBER
PRINTED
SEALED

MADE IN JAPAN
MADE IN FRANCE

SAFETY-RELATED COMPONENT WARNINGII

COMPONENTS IDENTIFIED BY 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 PUB-
LISHED BY SONY.

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 breakdown 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.

NOTESVON 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 more than 30 cm away from
the objective lens.

For UK Model and AEP Model

CLASS I LASER PRODUCT
LUOKAN 1 LASERLAITE

KLASS I LASERAPPARAT

This Compact Disc player is classified as 3
CLASS I LASER product.

The CLASS 1 LASER PRODUCT label is located
on the rear exteriorr