Read Sony CDX-GT121 / CDX-GT220 / CDX-GT222 Service Manual online
Published by Sony Techno Create Corporation
© 2007. 08
LW: 153 – 279 kHz
Power antenna (aerial) relay control terminal
Power amplifier control terminal
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)
+2 dB at 10 kHz
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
OR BASE UNIT
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
The flexible board is easily damaged and should be handled with
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.
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical pick-
other than those specified herein may result in hazardous
• Notice that the minus side of a tantalum capacitor may be damaged
PATD-012 (Part No. 4-225-203-01)
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
• Unleaded solder melts at a temperature about 40°C higher than
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
Caution: The printed pattern (copper foil) may peel away if the
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
also be added to ordinary solder.
CD-RW (MP3/WMA files*).
3-11. Optical Pick-up ................................................................ 13
product. The CLASS 1 LASER PRODUCT label is located on the
as shown below.
be replaced since any parts in the SERVO board cannot be repaired.
1. Insert the AUX jack into the KEY board.
2. Place the KEY board on the front panel.
3. Solder the three terminals of the jack.