CDX-GT40U, CDX-GT40UW, CDX-GT42UE, CDX-GT44U, CDX-GT45U, CDX-GT47UE - Sony Car Audio Service Manual (repair manual). Page 4

EXTENSION  CABLE  AND  SERVICE  POSITION
When repairing or servicing this set, connect the jig (extension 
cable) as shown below.

•  Connect the MAIN board (CN700) and the SERVO board 

(CN401) with the jig cable.

Jig cable:
Part No. 

Description

A-1818-424-A EXTENSION CABLE (CD MECHA)

NOTE FOR REPLACEMENT OF THE USB CONNECTOR 
(CN902)  AND  THE  AUX  JACK (J901)
To replace the USB connector and the AUX jack requires align-
ment.
1.  Insert the USB connector and the AUX jack into the front pan-

el.

2.  Place the KEY board on the front panel and align the terminals 

of the USB connector and the AUX jack with the holes in the 
KEY board.

3.  Solder the seven terminals of the connector and three terminals 

of the jack.

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 and clean the 
connectors with a cotton swab. Do not apply too much force. 
Otherwise, the connectors may be damaged. 

t For safety, turn off the ignition before cleaning the connectors, 
  and remove the key from the ignition switch.
t Never touch the connectors directly with your fingers or with 
  any metal device.