Sony wx c 570 service manual

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WX-C570

SERVICE MANUAL us Model

UK Model
E Model

SPECIFICATIONS Model Name Using Similar Mechanism NEW
CD . .
AUDIO POWER SPECIFICATIONS (us Model) Section CD DIN" man's Type MG 338x 21
POWER OUTPUT AND TarAL HARMONIC DISTORTION Optical Pick'up Name KSS-520A
17 watts per ehanncl minimum continuous average power into 4 ohms. TC Model Name Using Similar Mechanism XR-1150
4 channels drIven from 20 Hz to 20 kill with no more than 1 % total r
harmonic distortion Section Tape Transport Mechanism Type MG~52A-135
Omar Specifications
CD player section Tuner section
Signal-to-noise ratio 88 613 FM
Frequency response 10 - 20.000 Hz Tuning range US model:
Wow and flutter Below measurable limit 875 ~ 1079 MHz
Laser Diode properties UK. E model:
Material GaAlAs FM tuning interval:
Wavelength 780 nm 50 kHz/200 kHz switchable
Emission Duration Continuous 87.5 - l08.0 MHz
Laser ouiput power Less than 446 IIW [at 50 kHz step)
This output is [Ire value measumi tr! :1 distance of 37.5 - 107.9 MHz
200 mm from m: objective lens surface on the Optical (at 200 kHz srep)
Pick-up Black. Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz
Cagufle p|ay9r section Usable sensitivity 9 dBf
Tape track 4-iraok 2-charmel stereo SEICCMW 75 dB 1 400 *1
Wow and mm 0.03 ea (WRMS) Signal-w-noise min 65 dB (am).
Fquuency mponse 30 A 18,000 Hz 68 dB (mom)
Signal-Iu-noise ratio Harmonic distortion at 1 kHz
WWW 05% (mm),
W W- W . 0- (mm)
W m- 55 dB Separation 35 dB at 1 kHz
- *- Frequency response 30 - 15,000 Hz
Capture ratio 4 dB

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CHANGER CONTROL AUDIO MASTER

ONYE

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AM
'hming range US model:
530 - 1,710 kHz
UK, E modeI:
AM tuning interval:
9 kHz/10 kHz switchable
531 - 1,602 kHz
(at 9 kHz step)
530 » 1,710 kHz
(at 10 kHz step)
Antenna terminal External antenna connector
Immediate frequency 10.7l MHz/450 kHz
Sensitivity 30 uV
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 - 8 ohms
General
Outputs Power antenna control
lead
Power amplifier control
lead
Telephone mute control
lead
Linc outputs (2)
Tone controls Bass 18 dB at 100 Hz
Treble :8 dB at 10 kHz
Power requirements 12 V DC car batlery
(negative ground)
Dimensions Approx. 178 x [00 X 173 min

(7 m x 4 x 6 m in.)
(w/hld)
Approx. 178 x 100x155 mm
(7 m x 4 x 6 min.)
(wlh/d)
Mass Approx. 2.1 kg (4 lb. 10 oz.)
Supplied accessories Parts for installation and
connections (1 set)
Decoy cover (1)

Mounting dimension

Design and specifications are subject In change without
notice.

SERVICE NOTE

CAUTION

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

Notes on Chlp Component Replacement

I Never reuse a disconnected chip component

0 Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
0R 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, ob-
serve from more than 30 cm away from the objective lens.

NOTES ON PICK-UP FLEXIBLE BOARD

The pick-up flexible board in this set is secured to the optical pick-
up with an adhesive tape. Once the tape is removed, an adhering
force becomes weak. and it cannot be reused.

Therefore, if the optical pick-up is replaced. replace also the pick»
up flexible board with a new one.

NOTES ON CLEANING THE OBJECTIVE LENS

cotton swabs
objective lens

2-axis actuator

2-axis cover

slide bass
optical pick-up

Apply CD lens cleaner 13-4 (Part No.:J-2501 -000-A) to cotton swabs
(narrow type) (Part No.2J-2501-023 (about 5 g (0.18 oz» to make the objective lens in contact with the
bottom lightly, and clean the lens by spirals as following below.

Replace the cotton swab and repeat this cleaning two or three times.

surface of objective lens

Notes:

Do not force to push the objective lens. Otherwise, the plate spring
supporting the objective lens will be bent, causing a deteriorated
RF waveform.

Never touch anything other than the objective lens. Otherwise, a

significant deterioration occurs in the RF waveform.

SAFETY-RELATED COMPONENT WARNING

COMPONENTS IDENTIFIED BY MARK A on DOT'I'ED LINE
WITH MARK A ON THE SCHEMATIO 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.