Sony cfd s 250 l service manual

Page 1

CFD-8250L

SERVICE MANUAL

Ver 1.0 2003. 02

AEP Model
UK Model

Model Name Using Similar Mechanism CFD-SZOOL
CD Mechanism Type KSM-213RDP
Optical Pick-up Name KSS-213R
TC Model Name Using Similar Mechanism CFD-SZOOL
SGCIION Tape Transport Mechanism Type MF-SZOO

CD
Section

SPECIFICATIONS

CD player section
Syslem
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 uw
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
the oprical pickrup block wirh 7 mm aperntre.)
Spindle speed
200 r/min (rpm) to 500 mm (rpm) (CLV)
Number of channels
2
Frequency response
20 , 20.000 l-lz tel/72 dB
Wow and flutter
Below measurable limit

Radio section
Frequency range
FM: 87.5 , 108 MHz
MW: 531 , 1.611 kHz (9 kHz step)
530 71.610 kHz (10 kHz step)
LW: 153 , 279 kHz

IF
FM: 10.7 MHz
MW/LW: 450 kHz
Aerials
FM: Telescopic aerials
MW/LW: Builtrin ferrite bar aerlals
9-877-083-01 Sony Corporation
2003B0400-1 Personal Audio Company
© 2003. 02 Published by Sony Engineering Corporation

cassette-corder section
Recording system
4rtrack 2 channel stereo
Fast winding tnne
Approx. 120 sec. with Sony cassette CV60
Frequency response
TYPE I (normal): 80 , 101000 HZ

General
Speaker
Full range: 10 cm dia..
3.2 Q, cone rype (2)
Input
LINE IN jack (stereo mimjack)
Mlnlluuln input level 330 mV
Outputs
Headphones jack (stereo minljack)
For 16 , 68 Q impedance headphones
OPTICAL DIGITAL OUT (CD)
(Optical output connector)
Wavelength: 630 r 690 nm
Maximum power output
5.2 W

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co RADIO CASSETTE-CORDER
S ONY;

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CFD-SZ50L

Power requirements
For CD radio cassetlercorder:
230V AC. 50 Hz
9 V DC, 6 SlZe D (R20) batteries
For remote control
3 v DC, 2 srze AAA (R03) batteries

Power consumption
AC 20 W

Battery life
For CD radio cassellercorder:

FM recording

Sony Rzop: approx. 13 5 II

Sony alkaline LR20: approx. 20 Il
Tape playback

Sony RZOP: approx. 7.5 h

Sony alkaline 1.1220: approx 15 n
CD playback

Sony RZOP: approx. 2.5 n

Sony alkaline LR20: approx. 7 h

Dlnlensmns
Approx. 386 x 173 x 269 mm (w/h/d)
(lrlcl. pmJectillg pans)

Mass
Approx. 3.5 kg (incl. batteries)

Supplied accessories
Main lead (1)

Remote control (RMTVCSZOOAD) (1)

Design and specifications are subject to change Without
notice.

CAUTION

Use of controls or adjustments or perfomlance of proce
dures other than those specified herein may result in haz-
ardous radiation exposure.

Flexible Circuit Board Repairing

' Keep the temperature of the soldering iron around 270°C during
repairing.

' Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).

' Be careful not to apply force on the conductor when soldering
or unsoldering.

Notes on Chip Component Replacement

' Never reuse a disconnected chip component.

' Notice that the minus side ofa tantalum capacitor may be dam»
aged by heat.

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown 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. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

SAFETY-RELATED COMPONENT WARNING

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 PUBLISHED BY SONY.