CDX-GT522U, CDX-GT527U - Sony Car Audio Service Manual (repair manual). Page 6

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CDX-GT522U/GT527U
6
EXTENSION  CABLE  AND  SERVICE  POSITION
When repairing or servicing this set, connect the jig cable (exten-
sion cable (CD mecha)) 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)
SERVO board
(CN401)
MAIN board
(CN700)
extension cable (CD mecha)
MAIN  AND  KEY  BOARDS  DISCRIMINATION
In this set, the MAIN and KEY boards have been changed in the 
midway of production.
Repair after distinguishing each type set to doing the repair refer-
ring to the following.
– KEY Board (Component Side) –
– MAIN Board (Component Side) –
Suffix-11 : 1-886-920-11
Suffix-21 : 1-886-920-21
Former type : 1-886-982-12 
 
  (E, Korean and Indian models) or
 
  1-887-147-11 (Saudi Arabia model)
New type 
: 1-886-982-21
 
  (E, Korean and Indian models) or
 
  1-887-147-21 (Saudi Arabia model)
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