Sony CDX-GT570 Service Manual page 2

CDX-GT527EE/GT570/GT570S
MW (CDX-GT570/GT570S)
Tuning range 531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
(except EA model)
MW tuning interval 9 kHz/10 kHz switchable
(except EA model)
Antenna (aerial) terminal
External antenna (aerial) connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
SW (CDX-GT570/GT570S)
Tuning range SW1: 2,940 – 7,735 kHz
SW2: 9,500 – 18,135 kHz
(except for 10,140 – 11,575 kHz)
Antenna (aerial) terminal
External antenna (aerial) connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
Power amplifier section
Outputs Speaker outputs (sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output
52 W × 4 (at 4 ohms)
General
Outputs Audio outputs terminal (front, rear/sub
switchable) (CDX-GT527EE)
Audio outputs terminal (front/rear)
(CDX-GT570/GT570S)
Subwoofer output terminal (mono)
(CDX-GT570/GT570S)
Power antenna (aerial) relay control terminal
Power amplifier control terminal
Inputs Telephone ATT control terminal
(CDX-GT527EE)
BUS control input terminal
BUS audio input terminal
Remote controller input terminal
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
Tone controls Low: ±10 dB at 60 Hz (XPLOD)
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)
Power requirements 12 V DC car battery (negative ground (earth))
Approx. 178 × 50 × 180 mm
Dimensions
× 2 × 7
(7
1/8
Approx. 182 × 53 × 162 mm
Mounting dimensions
× 2
(7
1/4
Mass Approx. 1.2 kg (2 lb. 11 oz.)
Supplied accessories Card remote commander: RM-X151
Parts for installation and connections (1 set)
MPEG Layer-3 audio coding technology and
patents licensed from Fraunhofer IIS and Thomson.
Design and specifications are subject to change without
notice.
• Abbreviation
EA: Saudi Arabia model
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 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.
2
in.) (w/h/d)
1/8
× 6
in.) (w/h/d)
1/8 1/2
SERVICE NOTES
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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical pick-
up block.
semi-fixed resistor
optical pick-up