Sony cfd 750 l service manual

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SERVICE MANUAL

Photo : CFD-750L

AEP Model

CFD750L/760L

UK Model

CFD-750L

MEMMSS

SPECIFICATIONS
CD player section
System Compact disc digital audio system
Laser diode properties Material: GaAlAs
Wavelength 780nm

Emission duration: Continuous

Laser output: Less than 44.6;1W

' This output is the value measured at a dis
tance of about 200mm from the objective
lens surface on the optical pick-up block.

200 rpm. to 500 rpm (CLV)

Sony Super Strategy Cross lnterleave Read

Solomon Code

Number of channels 2

Frequency response 20-20,000Hz 1% dB

Wow and flutter Below measurable limit

Spindle speed
Error correction

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

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

V CLASS 1 LASER PRODUCT

LUOKAN 1 LASEHLAITE
KLASS t LASERAPPARAT

Radio section
Frequency range FM : 87.6-107MH2 (AEP, WG, UK models)
875-108MH2 (IT model)
MW: 531-1,602kHz
LW : 153-279kHz
Intermediate FM : 107MHz
frequency MW/LW : 450kHz

Antennas

FM/SW: Telescopic antenna
MW/LW: Built-in ierrite bar antenna

M d .N U , .99.?99992 ______ 9e11,??? _____
Signilear laggimsilsr: Tape Section 8:32:05

Optical Device Name KSM-ZlOBAN

Tape Transport CFDJSOL 3:323: 3:3;282222

Tape recorder section and general
Recording system 4~track 2-channel stereo
Frequency response (BO-10,000 Hz
Speakers Two-way speakers:
Full-range: 10 cm diai. cone type
Woofer: 8 cm dia.
lnputs MIX MIC jack (monaural minijack):
Sensitivity 25 mV. for low impedance
microphone
Outputs Headphones jack (stereo minijack) for
16 - 68 ohm impedance headphones
Maximum power output
545W + 5.5W (at 32 ohms, 10% harmonic
distortion)
Power requirements 15 V DC, ten R20 (size D) batteries
Clock/timerlmemory: 45 V DC three R6
(size AA) batteries

European model 220VAC, 50 Hz

United Kingdom model 240 VAC, 50 Hz

- continued on next page 7

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CFD-750L/760L

Power consumption 35 w
Battery life
. FM continuous
Batteries recording Playback
Sony SUM-1 (NS) Approx. 9 hours Approx. 4 hours
Sony AM-1 (N)
alkaline Approx. 16 hours Approx. 8 hours

Forclockltimerlrnemory: Approx. 1 year

Dimensions 696 x255 x 236 mm (w/h/d)
(27'/2 x 10ls x 93/8 inches)
not incl. projecting parts and controls
Weight Approx. 9.4kg, incl. batteries
(Approx. 20 lb 12 oz)
Supplied accessory AC power cord (1)
Remote commander RMT-C760 (1)
(for CFD-760L only)

Design and specifications subject to change without notice.

Note
This appliance conforms with EEC Directive 87/308/EEC regarding
interference suppression.

Memory preset tuning
A total of 20 stations can be stored in any order

High quality sound

0 The Sony MEGA BASS system produces a powerful bass.

0 By pressing the SPACE SOUND button, depth and
spaciousness can be added to the original sound.

A high performance, high fidelity CD player with

many functions

0 An 8 cm (3-inch) CD can be played without using an
adaptor.

0 Repeat function allows playing either the entire disc or a
single selection.

- Program play for playing selections in the order desired.

- Shuttle play for playing selections repeatedly in random
order.

O A synchronized CD starting system for recording.

0 An automatic editing function-The CD player automati-
cally edits the selections on a CD depending on the tape
length.

Digital clock timer

0 You can listen to CD, radio or ataped program (for
CFD-760L only) at a preset time.

0 You can record CD or radio programs at a preset time.
(for CFD-760L only)

Others
0 High or normal speed tape dubbing
o CFD-760L are supplied with a remote commander.

TABLE OF CONTENTS

Section Title Page

1.

2.
2-1.
2-2.

3.

3-1.
3-2.
3-3.
3-4.

4.

5.

5-1.
5-2.
5-3.

6.

6-1.
6-2.
6-3.
6-4,
6-5.
6-6.
6-7.
6-8.
6-9.

6-10. Semiconductor Lead Layout ~~~~~~~~~~~~~~~

7.

7-1.
7-2.
7-3.
7-4.
7-5.
7-6.
7-7.
7-8,
7-9.

8.

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

GENERAL
Parts Indentification ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4
Setting the Clock ................................................... 6

DIS ASSEMBLY
Cabinet (Front) Assy ............................................. 7
Cabinet (Upper) Assy~ " ~
MD Assy (DECK A) -
MD Assy (DECK B)

MECHANICAL ADJUSTMENTS ------------------------------ 9

ELECTRICAL ADJUSTMENTS

Tape Recorder Section ....................................... 10
Radio Section -
CD Section

DIAGRAMS
Circuit Board Location
Block Diagram -Main Section
Block Diagram *CD Section-u
Printed Wiring Board -Main Section-
Schematic Diagram ~Main Section-
Schematic Diagram -Power Section- ~
Schematic Diagram -CD Sectionm
Pristed Wiring Board -CD Section-~~~
Schematic Diagram -Tuner Sectioni ~

EXPLODED VIEWS
Cabinet Section ~
CD Block Assy ~
Rear Cabinet Section
Speaker Box Section
Optical Block ~~~~~~~~~~~~~
Mechanism Section (1)
Mechanism Section (2)
Mechanism Section (3)
Mechanism Section (4)

ELECTRICAL PARTS LIST

SAFETY-RELATED COMPONENT WARNING

COMPONENTS IDENTIFIED BV MARK A DR 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.