Sony CDX-GT49UM Service Manual
Text of the manual
Audio&Video Business Group
Published by Sony Techno Create Corporation
CDX-GT49UM/GT490U/
GT490US/GT494U
FM/AM COMPACT DISC PLAYER
9-889-625-02
2009K04-1
© 2009.11
E Model
CDX-GT490U/GT490US
Indian Model
CDX-GT49UM/GT494U
Ver. 1.1 2009.11
SPECIFICATIONS
Tuner section
FM
Tuning range:
Except Saudi Arabia model:
87.5 – 108
NOTES ON CHIP COMPONENT REPLACEMENT
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
TEST DISCS
Please use the following test discs for the check on the CD
section.
YDES-18 (Part No. 3-702-101-01)
PATD-012 (Part No. 4-225-203-01)
SAFETY-RELAT
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
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
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EXTENSION CABLE AND SERVICE POSITION
When repairing or servicing this set, connect the jig (extension
cable) as shown below.
•
Connect the MAIN board (CN701) and the SERVO board
(CN401) with the extension cable (Part No. J-2502-076-1).
NOTE FOR REPLACEMENT OF THE SERVO BOARD
When repairi
This section is extracted
from instruction manual.
CONNECTIONS
• E, Indian, Mexican model
Ver. 1.1
Connection diagram
1 To a metal surface of the car
First connect the black ground (earth) lead, then connect the
yellow, and red power supply leads.
2
To the power antenna (aerial) control lead or power
