CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
2
NOTES ON CHIP COMPONENT REPLACEMENT
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
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.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated by
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The
fl
exible 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 re
fl
ective surface by the objective lens in the optical
pickup 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 speci
fi
ed herein may result in hazardous radia-
tion exposure.
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-
fi
xed resistor located at the side of optical
pick-up block.
optical pick-up
semi-fixed resistor
TEST DISCS
Please use the following test discs for the check on the CD section.
YEDS-18 (Part No. 3-702-101-01)
PATD-012 (Part No. 4-225-203-01)
General
Outputs:
Audio outputs terminal
(front, rear/sub switchable) (E, AR, EA, MX, IND model)
Audio outputs terminal
(rear/sub switchable) (AEP, UK, RU model)
Power antenna (aerial) relay control terminal
Power
ampli
fi
er control terminal
Inputs:
Telephone ATT control terminal (AEP, UK, RU model)
Remote controller input terminal
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
USB signal input connector
Power requirements:
12 V DC car battery
(negative ground (earth))
Dimensions:
Approx. 178 × 50 × 179 mm
(7
1
/
8
× 2 × 7
1
/
8
in.) (w/h/d)
Mounting dimensions:
Approx. 182 × 53 × 162 mm
(7
1
/
4
× 2
1
/
8
× 6
1
/
2
in.) (w/h/d)
Mass:
Approx. 1.2 kg (2 lb. 11 oz.)
Supplied accessories:
Card remote commander:
RM-X151 (E, AR, EA, MX, IND model)
Parts for installation and connections (1 set)
Design and speci
fi
cations are subject to change
without notice.
• Abbreviation
RU
: Russian model
AR :
Argentina
model
EA
: Saudi Arabia model
MX
: Mexican model
IND
: Indian model
