Sony cfd 708 service manual

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CFD-708

SERVICE MANUAL

Tourist Model

0
S T E R E O
COMPACT

DIGITAL AUDIO

CD 5 1;" Model Name Using Similar Mechanism NEW
ec on
I Optical Pickup Block Type KSM-360AAM
Cassette Deck Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism MF-ZSB-i 05
SPECIFICATIONS
CD player section Cassette-carrier section
System Compact disc digital audio system Recording system 4-track 2-channel stereo
Laser diode properties Material: GaAlAs Fast winding time Approxl 1205 with Sony
Wave length: 780 nm cassette HF60
Emission duration: Continuous Frequency response TYPE I (normal) cassette:
Laser output: Less than 44.6 uW 50-15000 Hz
(This output Is the value measured at a TYPE II (CrOz) cassette:
distance of about 200 mm from the oclective 5045.000 Hz
lens surlace on the optical pick-up block) TYPE lV (metal) cassette:
Spindle speed 200 r/rnin (rpm) to 500 r/min (rpm) 50-18000 Hz
(CLV)
Error correction Sony Refined Super Strategy General
0°35 lnterleave Reed Solomon Speaker Woofer. 8 cm dia.. 6 Q cone type
0° Tweeter: 5 cm dia.
Number °f channels 2 Inputs Mixing microphone input jack
Frequency response 20 - 20,000 Hz 1 1 dB (minijack):
Wow and flutter Below measurable limit Sensitivity 2.5 mV.
. For low impedance microphone
Radio sectlon

Frequency range

Antennas

FM (TV): 76-108 MHz

(1~3 CH in Japan only)
AM: 531-1529 kHz

(9 kHz STEP)

530-1 .710 kHz

(10 kHz STEP)
FM (TV): Telescopic antenna
AM: Built-in ferrite bar antenna

Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation.
DO LBY" and the double-D symbol D0 are trademarks of
Dolby Laboratories Licensing Corporation.

Line input tack (stereo minijack):
Sensitivity 436 mV
Input impedance more than 47 kn

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CD RADIO CASSETTE-BORDER

SONY;

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Outputs Headphones jack (stereo minijack):
For 16-64 ohms impedance
headphones

Line output jack (stereo minijack)
Rated output 250 mV at load
impedance 47 kn
Load impedance more than 47 kn
Optical digital output jack (optical
output connector)
Wave length 630-690 nm
Power output 10 W + 10 W
Power requirements
For CD radio cassette-corder:
100-110, 120, 220, 240 V AC,
50/60 Hz
DC 12 V, 8 size D (R20) batteries
For clock/timer/memory:
DC 6 V, 4 size AA (F16) batteries
For remote commander:
DC 3 V, 2 size AA (R6) batteries
Power consumption 50 W

Battery life
For CD radio cassette-corder:

FM recording Tape playback CD playback

Sony SUM»1 (NS) approx. 3 h approx. 1 h approx. 1 h
Sony Alkaline AM1 approx. 13 h approx. 3 h approx. 5 h
For clock/timer/memory:

approx. 1 year
For remote commander
approx. 6 months
Dimensions Approx. 480 x 191 x 225 mm (w/h/d)
(19 x 7% x 8% inches) incl. projecting
pans
Mass 7.7 kg (16 lb 16 oz)
(incl. batteries)
Supplied accessories AC power cord (1)
Remote commander (RMT-C708) (1)
Plug adaptor (1)

Design and specifications subject to change without notice.

SAFETY-R E LATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK @ 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.

TABLE OF CONTENTS

Section Title Page
SECTION 1_ GENERAL ................................................ 4
SECTION 2_ DISASSEMBLV .................................... 23

SECTION 3. MECHANICAL ADJUSTMENTS --------- 27

SECTION 4. ELECTRICAL ADJUSTMENTS ~~

23

SECTION 5. DIAGRAMS

5-1.
5-2.
5-3.
5-4.
5-5.
5-6.
5~7».
5-8.
5-9.

5-10.
5411.
5-12.
5-13.
5-14.
5-15.

Pin Function Description ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 35
Circuit Boards Location ....................................... 37

Semiconductor Lead Layouts

Frame Schematic Diagram

Primed Wiring Board-Tuner Section-

Schemalic Diagram-Tuner Section--~
Printed Wiring Bomds-CD Section- ------------------ 46
Schematic Diagrams-CD Sectionfi ~~~~~~~~~~~~~~~~~~ 49
Schematic DiagramSATC Section-

Printed Wiring Boards-TC Section-
Printed Wiring Boards~MAIN/POWER Section- ~61
Schematic Diagrams-MAIN/POWER Section-l- "~65
Schematic DiagramSWMAIN/POWER Section-2- --

Printed Wiring Boards-LCD/SWITCH Section- "~73
Schematic Diagrams-LCD/SWITCH Secticn- ~~~~~ 74

SECTION 6. EXPLODED VIEWS

6-1. Cabinet (Rear) Section .......................................... 77
5.2. Cabinet (From) Section .................. . .................... 73
6-3. MD Chassis Section ......................................... 79
6-4. MD Section-1 .............................
6-5. MD Section»2 81
66. CD Chassis Section
6-7. Optical Pickup Block

SECTION 7. ELECTRICAL PARTS LIST ..............34