DSX-A100U, DSX-A102U - Sony Car Audio Service Manual (repair manual). Page 5

MODEL  IDENTIFICATION
Distinguish by Part No. on the bottom side of the main unit.

4-576-076-0[]

DSX-A100U: Russian model (RU2)

4-576-077-0[]

DSX-A102U: Russian model (RU2)

4-576-078-0[]

DSX-A100U: E model (E)

4-576-079-0[]

DSX-A100U: Mexican model (MX3)

4-576-080-0[]

DSX-A100U: Argentina model (AR)

4-576-081-0[]

DSX-A100U: Indian model (IN)

4-576-082-0[]

DSX-A100U: Saudi Arabia model (EA)

NOTE  OF  REPLACING  THE  KEY  BOARD
When the KEY board is defective, replace the FRONT PANEL 
OVERALL ASSY (Ref. No. FP1).

NOTE  OF  REPLACING  THE  IC001  AND  IC1301  ON  THE  
MAIN  BOARD
IC001 and IC1301 on the MAIN board cannot replace with single. 
When these parts are damaged, replace the complete mounted 
board.

CHECKING  THE  OPERATION
When checking the operation of this unit, connect a USB device 
to this unit.
Refer to the support site written in the operating instructions for 
the details about the compatibility of a USB device.

The unit may not function properly if the 
connectors between the unit and the front panel 
are not clean. In order to prevent this, detach the 
front panel (page 6) and clean the connectors with 
a cotton swab. Do not apply too much force. 
Otherwise, the connectors may be damaged.

ˎ For safety, turn off the ignition before cleaning the 

connectors, and remove the key from the ignition 
switch.

ˎ Never touch the connectors directly with your fingers 

or with any metal device.

You can cancel the demonstration display which 
appears when the source is off and the clock is 
displayed.

1

Press MENU, rotate the control dial to 
select [SET GENERAL], then press it.

2

Rotate the control dial to select [SET 
DEMO], then press it.

3

Rotate the control dial to select [SET 
DEMO-OFF], then press it.

The setting is complete.

4

Press  

(back) 

twice.

The display returns to normal reception/play 
mode.

and clean the connectors with