CDX-GT270MP, CDX-GT274MP, CDX-GT277ME, CDX-GT320MP - Sony Car Audio Service Manual (repair manual). Page 4

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CDX-GT270MP/GT274MP/GT277ME/GT320MP
4
NOTE  THE  MAIN  BOARD  OR  SYSTEM  CONTROLLER 
(IC501) REPLACING
When the MAIN board or system controller (IC501) is replaced, 
the destination setting is necessary. 
1. Destination Setting
Set destination according to the procedure below.
1-1.  Setting the Destination Code
1.  In the state of source off (the clock is displayed), enter the test 
mode by pressing the buttons in order of the [SHUF 4] t [5] 
t [PAUSE 6] (press only the [PAUSE 6] button for two sec-
onds).
2.  In the state in which the system controller version is displayed 
on the liquid crystal display (refer to following fi gure), enter 
the destination setting mode by pressing the buttons in order 
of the [
> M
 SEEK+] t [SEEK– 
. m
] t [PUSH EN-
TER/MENU].
 
(Displayed characters/values in the following fi gure are ex-
ample)
SHUF
System controller version
3.  Input the alphanumeric character of 8 digits of “F    XXXXXX” 
displayed on the liquid crystal display, and execute the destina-
tion setting.
Note: Refer to following “1-3. Entering the Destination Code” for opera-
tion method.
4.  The resetting operation is executed by pressing the [
 
OFF 
SOURCE] button for 1 second after the setting ends, and the 
unit returns to the normal condition.
1-2.  Display in Destination Setting Mode
(Displayed characters/values in the following fi gure are example)
SHUF
Destination code
8 digit
OP5 OP4 OP3 OP2 OP1 OP0
1-3.  Entering the Destination Code
•  Method of operation by main unit
1.  Rotate the control dial, and select the alphanumeric character 
of “0 to F”.
2.  The digit advances by pressing the [PUSH ENTER/MENU] or 
[
> M
 SEEK+] button.
 
The digit returns by pressing the [ ] or [SEEK– 
. m
] but-
ton.
3.  The setting is completed by pressing the [PUSH ENTER/
MENU] button, and the initialization operation is done.
•  Method of operation by remote commander
 
(US, Canadian, E, Saudi Arabia, Mexcian, Argentina 
and Korean models only)
 Note: The model to which the remote commander is not attached can 
also be operated by using the remote commander.
1. Press the [ ] or [ ] button, and select the alphanumeric char-
acter of “0 to F”.
2.  The digit advances by pressing the [
] button.
 
The digit returns by pressing the [
] button.
3.  The setting is completed by pressing the [ENTER] button, and 
the initialization operation is done.
1-4. Destination Code
Model
Destination OP5 OP4 OP3 OP2 OP1 OP0
CDX-GT270MP
US, Canadian
0
0
B
0
0
2
AEP, UK
0
0
B
0
0
1
CDX-GT274MP AEP, UK
0
0
B
0
0
1
CDX-GT277ME Russian
8
0
B
0
0
7
CDX-GT320MP
E, Mexican, 
Korean
0
0
B
8
0
0
Argentina
0
0
B
8
0
3
Saudi Arabia
0
0
B
8
0
4
2. Confi rmation After Destination Setting
Execute the following operation after completing the destination 
setting, and confi rm a correct destination was set.
Destination setting checking method:
1.  In the state of source off (the clock is displayed on the liquid 
crystal display),  enter the test mode by pressing the buttons in 
order of the [SHUF 4] t [5] t [PAUSE 6] (press only the 
[PAUSE 6] button for two seconds).
2.  In the state in which the system controller version is displayed 
on the liquid crystal display (refer to following fi gure), enter 
the destination setting value display mode by pressing the [
 
SCRL DSPL] button twice.
 
(Displayed characters/values in the following fi gure are ex-
ample)
SHUF
System controller version
3. Confi rm the alphanumeric character of 8 digits in liquid crystal 
display is an value correctly input.
 
(Displayed characters/values in the following fi gure are ex-
ample)
SHUF
Destination code
8 digit
OP5 OP4 OP3 OP2 OP1 OP0
4.  The resetting operation is executed by pressing the [
 
OFF 
SOURCE] button for 1 second after the confi rming ends, and 
the unit returns to the normal condition.
Ver. 1.1
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