Sony cfd 750 s service manual

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CFD-IfiUS/IBDS

SERVICE MANUAL

Photo : CPD-750$

E Mode/

SPECIFICATIONS

CD player section
System Compact disc digital audio system
Laser diode properties Material: GaAlAs

Wavelength 780nm

Emission duration: Continuous

Laser output: Less than 44.6uW'

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

Spindle speed 200 rpm. to 500 rpm (CLV)
Error correction Sony Super Strategy Cross interleave Read

Solomon Code

Number of channels 2
Frequency response 20-20,000Hz 1% d8
Wow and flutter Below measurable limit

Radio section
Frequency range FM : 87.6-107MH2 (Saudi Arabia model)
87.6-108MHz (E model)
MW: 531 -1,602kHZ (9kHz STEP)
530-1,710kHz(10kHz STEP)
SW : SW-l 5.85-6.35MHZ (49m)
SW-2 7.00-7t50MHz (41m)
SW-3 940-9.90MH2 (31m)
SW-4 11.60-12.10MH2 (25m)
SW-S 15,10-15.60MHZ (19m)
SW-6 17.55-1&05MH2 (16m)
SW-7 21.40-21.90MH2 (13m)

Intermediate FM : 10.7MHz
frequency MW/LW : 450kHz
Antennas FM/SW: Telescopic antenna

MW/LW: Built»in ferrite bar antenna

CD Section CFS-454
Model Name Using ---------------------------------

~ _ , . CFS-W505
Similar Mechanism Tape Section CPS-60

Optical Device Name KSM-ZIOBAN

DECK A: MF-D75OPB-64
Tape Transport CFDJSOS DECK B: MF-D750RP-64
Mechanism Type DECK A: MF-D750PB~64
07603 DECK s: MF-D76ORP-63

Tape recorder section and general
Recording system 4-track 2-channel stereo
Frequency response 80 -1OVOOO Hz
Speakers Two~way speakers:
Full-range: 10 cm diar, cone type
Woofer: 8 cm dia.

inputs MlX MlC jack (monaural minijack):
Sensitivity 2.5 mV, for low impedance
microphone

Outputs Headphones jack (stereo rninijack) lor

16 - 68 ohm im pedanoe headphones
Maximum power output
5.5W + 5.5W (at 32 ohms, 10% harmonic
distortion)
Power requirements 15 V DC. ten R20 (size D) batteries
Clock/timer/memory: 4,5 V DC three H6
(size AA) batteries
110V, 120V, 220V, 240V AC adjustable
50/60Hz

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on RADIO CASSETTE-BURDER
S 0 NY;

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CFD-7508/ 760$

Power consumption 35 W

Battery life

FM continuous

recording Playback

Batteries

Sony SUM-1 (NS) Approx. 9 hours Approx. 4 hours

Sony AM-1 (N)

alkaline Approx. 16 hours

Approx. 3 hours

Forclock/timer/memory: Approx. 1 year

696 x 255 x 236 mm (w/h/d)

(27V; X 10% X 93/. 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 EMT-0760 (1)

(for CPD-7608 only)

Dimensions

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,

' 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

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

e Repeat function allows playing either the entire disc or a
single selection,

0 Program play for playing selections in the order desired.

0 Shuffle play for playing selections repeatedly in random
order.

0 A synchronized CD starting system for recording.

- 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
CFO-7608 only) at a preset time.

0 You can record CD or radio programs at a preset time.
(for CFD-7GOS only)

Others
- High or normal speed tape dubbing
0 CFD-7GOS are supplied with a remote commander.

TABLE OF CONTENTS

Section Title Page
1' SERVICING NOTES ............................................. 3
2. GENERAL

O Parts Indentification
OSetting the Clock
0 Listening to Radio Program

3. DISASSEMBLY
3-1. Cabinet (Front) Assy ~~
3-2. Cabinet (Upper) Assy~
3-3. MD Assy (DECK A)-
3-4. MD Assy (DECK B)~

4. MECHANICAL ADJUSTMENTS

5. ELECTRICAL ADJUSTMENTS

5_1~ Tape Recorder Section ....................................... 12
5-2. Radio Section ~
5-3. CD Section ~

6. DIAGRAMS

6.1. IC Pin Functions ................................................
6-2. Circuit Boards Location ~~~~~~~~~~
6-3. Block Diagram -Main Section-
6-4. Block Diagram -CD Section- ~~~~~~~~~~~~~~~
6-5, Printed Wiring Boards -Main Section~
6-6. Schematic Diagram vMain Section-
6-7. Schematic Diagram -Power Section- -~
6-8. Schematic Diagram -CD SectionA
6-9. Pristed Wiring Boards -CD Section- ~-
6-10. Schematic Diagram -Tuner Section- ~~
6-11. Semiconductor Lead Layouts ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 47

7. EXPLODED VIEWS
7 -1. Cabinet Section
7-2. CD Block Assy "
7-3. Rear Cabinet Section
7-4. Speaker Box Section

7-5. Optical Block ~~~~~~~~~~~~
7-6. Mechanism Section (1) .
7-7. Mechanism Section (2)
7-8. Mechanism Section (3)
7-9. Mechanism Section (4)

8. ELECTRICAL PARTS LIST ................................. 58

SAFETY-R E LATED COMPONENT WARNI NG !I

COMPONENTS IDENTIFIED BY MARK A OR 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.