Read Sony CDX-GT121 / CDX-GT220 / CDX-GT222 Service Manual online
3
CDX-GT121/GT220/GT222
•
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40°C higher than
• Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
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
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
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
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
also be added to ordinary solder.
• CD Playback
You can play CD-DA (also containing CD TEXT) and CD-R/
CD-RW (MP3/WMA files*).
CD-RW (MP3/WMA files*).
Type of discs
Label on the disc
CD-DA
MP3
*
WMA
*
* CDX-GT220/GT222 only
TABLE OF CONTENTS
1.
SERVICE NOTE
........................................................
4
2.
GENERAL
Location of Controls ........................................................
5
Connections .....................................................................
5
3.
DISASSEMBLY
3-1.
Sub Panel Assy ................................................................
8
3-2.
CD Mechanism Block .....................................................
8
3-3.
Main Board ......................................................................
9
3-4.
Servo Board .....................................................................
9
3-5.
Chassis (T) Sub Assy ....................................................... 10
3-6.
Roller Arm Assy .............................................................. 10
3-7.
Chassis (OP) Assy ........................................................... 11
3-8.
Chucking Arm Sub Assy ................................................. 11
3-9.
Sled Motor Assy .............................................................. 12
3-10. Optical Pick-up Section ................................................... 13
3-11. Optical Pick-up ................................................................ 13
3-11. Optical Pick-up ................................................................ 13
4.
DIAGNOSIS FUNCTION
........................................ 14
5.
DIAGRAMS
5-1.
Block Diagram –Main Section– ...................................... 17
5-2.
Block Diagram –Display Section– .................................. 18
5-3.
Printed Wiring Board –Main Section– ............................ 19
5-4.
Schematic Diagram –Main Section (1/4)– ...................... 20
5-5.
Schematic Diagram –Main Section (2/4)– ...................... 21
5-6.
Schematic Diagram –Main Section (3/4)– ...................... 22
5-7.
Schematic Diagram –Main Section (4/4)– ...................... 23
5-8.
Printed Wiring Board –Key Section– .............................. 24
5-9.
Schematic Diagram –Key Section– ................................. 25
6.
EXPLODED VIEWS
6-1.
Main Section .................................................................... 29
6-2.
Front Panel Section ......................................................... 30
6-3.
CD Mechanism Section (MG-101TC-188//Q) ................ 31
7.
ELECTRICAL PARTS LIST
.................................. 32
This label is located on the bottom of the chassis.
This compact disc player is classified as a CLASS 1 LASER
product. The CLASS 1 LASER PRODUCT label is located on the
exterior.
product. The CLASS 1 LASER PRODUCT label is located on the
exterior.
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