Sony cdp m48 cdp m49 cdp m69

Page 2

CDP-M48/M49/M 69

TABLE OF CONTENTS

HOW TO OPEN THE DISC TRAY WHEN

Lotion Title fl POWER SWTCH TURNS OFF
Specifications .................................... 1
Servicing Note ~~~~~~~~ 2
Protection of Eyes from Laser Beam During Servicing ----- 3
SECTION 1. GENERAL
1-1. Location and Function of Controls ---------------- 4
SECTION 2. DISSASSEMBLY OF BASE UNIT ----------------- 5
SECTION 3. ELECTRICAL ADJUSTMENTS """""""""""" 6
SECTION 4. DIAGRAMS
waveforms ............. 9

10 Block Diagram
4-]. Printed Wiring Boards
4-2. Schematic Diagram ~~~~~
SECTION 5. EXPLODED VIEWS ~~~~~~~~
SECTION 6. ELECTRICAL PARTS LIST

MODEL IDENTIFICATIONS
-Specition Label-

CDP~M49
CDP-M69

E model:

SONY. MODEL N0. m

COMPACT DISC PLAYER
AC: 110- 120 V/220-240V ~
- 50/60 Hz

El

0 Turn in the direction
of the arrow.

Caution : When you work, keep the set horizontal.

UP BLOCK OR BASE UNIT

NOTES ON HANDLING THE OPTICAL PICK»

SERIAL No.
MADE IN JAPAN

CDP-M48
CDP-M49
CDP-M69

AEP model:

COMPACT DISC PLAYER
AC: 220V ~ 50/60HZ

El©®®§®

SERIAL No.
MADE IN JAPAN

some MODEL NO. m

Australian model:

CDP-M49

COMPACT DISC PLAYER
AC: 240V~50l60Hz

[El

SERIAL No.
MADE IN JAPAN

SONY. MODEL N0. m

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.

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. There-
fore, when checking the Iaser diode emission, observe
more than 25 cm away from the objective lens.

SA FETY-R E LATED COMPONENT WARNING! I

COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL T0 SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.