Sony cfd 775 service manual

Page 1

CFD-TI5

SERVICE MANUAL

US Model

MEGABASS

CD Section
Tape Section
KSM-21 01 BAN

Model Name Using
Similar Mechanism

DECK MF-770PB-65
DECK B: MF-770RP-65

Tape Transport
Mechanism Type

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS f "IT

POWER OUTPUT AND TOTAL HAHMONIC DISTDHTION
WIlh Mhm loads, both channels driven from 60-10000 Hz: rated 9 W per channel-minimum
HMS power, with no more than 10% total harmonic distortion in AC operation.

Other Specifications , , ,. 1

CD player section

System

Laser diode properties

Material: GaAlAs

Wavelength 780 nm

Emission duration: Continuous

Laser output: Less than 44.6uW

This output is the value measured at a
distance oi about 200 mm 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 oi channels 2

Frequency response 20-20900 Hzté dB

Wow and flutter Below measurable limit

Compact disc digital audio system

Spindle speed
Error correction

Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation:
"DOLBY" and the double-D symbol DU are trademarks of
Dolby Laboratories Licensing Corporation.

Radlo section
Frequency range FM: 87.6-108 MHz
AM: 530-1,710 kHz
Antennas FM: Telescopic antenna
AM: Built-in lerrite bar antenna

Tape recorder section and general

Recording system 4-track 2-channel stereo

Fast winding time Approx. 140 see. with Sony cassette 060

Frequency response 0 TYPE I (NORMAL) cassette: (so-13,000 Hz
0 TYPE ll (Cr02) cassette: (SO-16,000 Hz

Speaker Two-way speakers: Woofer: to cm dia, cone
type, Tweeter: 5 cm
inputs Mixing microphone input jack (minijack)
Sensitivity 25 mV
For low impedance microphone
Outputs Headphones jack (stereo minijack)

For 16-68 ohms impedance headphones
Two CD output jacls (phono jack)

Load impedance 10 kilohms or higher

Rated output 0.98 V rms at load

impedance 47 kilohms

- Continued on next page ~

(:0 RADIO crssmE-cunnrn
SONY;

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CFD-775

120 V AC, 60 Hz

DC 12 V, 8 size D (R20) batteries for CD
radio cassette-comer

DC 6 V, 4 size AA (R6) batteries for

Power requirements

clock/timer/memory
Power consumption AC 40 W
Battery life Batteries lor radio cassettecorder
Recording Playback CD playing
Sony SUM-1 (NS) approx. 2 H approx. 05 H approx. 0.5 H
Sony Alkaline AM1 (N) approx. 55 H approx 1.5 H approx. 1 H

For clock/timerlmemory: Approx. 1 year

Dimensions 686 x 250 x 234 mm (w/h/d)

(ZIIB x 97/a x 9I4 inches)

incl. projecting parts and controls
Weight Approx. 11 kg, incl. batteries

(Approx. 24 lb 4 oz)
AC power cord (1)
Remote commander (1)

Supplied accessories

Design and specifications subject to change without notice.

TABLE OF CONTENTS

Section Title Page
Specifications .................................. 1
Model Identification 2
1. SERVICING NOTES ~~~~~~~~~~~~~~~~~~~ 3
2. GENERAL
Parts Identification . - 5
Setting the Clock ~ ~ ~ 7
Playing Discs ~~~~~~~~~~~ 8
Various Disc Playing Modes . 9
Using the Built~in Timer - - - 10
3. DISASSEMBLY ......................... 12
4. ADJUSTMENTS
4~1. Mechanical Adjustment ~~~~~~~~~~~~~~~~~~~~ 16
4-2. Electrical Adjustment ------------------- 17
Tape Recorder Section ~~~~~~~~~~~~~~~~~~~~ 17
Tuner Section ............................ 20
CD Section .............................. 21

SAFETY-RELATED COMPONENT WARNINGII

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

Section Title Page
5. DIAGRAMS

5-1. Frame schematic Diagram ~~~~~~~~~~~~~~~~~~ 23
5-2. Main Block Printed Wiring Boards ---------- 31
5-3. Main Block Schematic Diagram ~~~~~~~~~~~~~ 33
5-4. TC Block Schematic Diagram -------------- 38
5-5. TC Block Printed Wiring Boards ------------ 43
5-6. CD Control Printed Wiring Boards ---------- 45
5~7. CD Control Schematic Diagram ~~~~~~~~~~~~~ 47
5-8. Power Block Schematic Diagram ----------- 51
5-9. Power Block Printed Wiring Boards -------- ,' 55
6. EXPLODED VIEWS .................... 57
7. ELECTRICAL PARTS LIST ~~~~~~~~~~~~ 64