SRS-NWGU50 - Sony Audio Service Manual (repair manual). Page 5

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SRS-NWGU50
SRS-NWGU50
5
5
SECTION  3
TEST  MODE
VERSION  DISPLAY  MODE
Procedure:
1.  Press the [
?/1
] button to turn the power on.
2.  Press the button in order of the [INPUT] 
→ [VOLUME +] → 
[VOLUME –] within three seconds after pressing three buttons 
of the [INPUT], [VOLUME –] and [VOLUME +] simultane-
ously.
3.  All LEDs blinks, and enter the version display mode.
4.  Execute the following operation, and confi rm the microcom-
puter version.
 
X . X X : microcomputer version
  
The 
[
%
] indicator blinks when the [VOLUME +] but-
ton is pressed, and it is shown by the blinking fre-
quency.
 
 
The [BASS] indicator blinks when the [VOLUME –] 
button is pressed, and it is shown by the blinking fre-
quency.
 
 
The [INPUT] indicator blinks when the [INPUT] but-
ton is pressed, and it is shown by the blinking fre-
quency.
5.  Press the [
?/1
] button to release the version display mode.
2-3.  MAIN  BOARD
Note: This illustration sees the set from bottom side.
2 four screws
 (B2.6 
u 6)
7 MAIN board
5 connector (CN300)
1 speaker connector (CN101)
6 wire (flat type) (9 core)
 (CN100)
4 connector (CN301)
3
2-4.  SPEAKER  BOX  ASSY
Note: This illustration sees the set from bottom side.
2 three screws (BV4 u 16)
6 speaker box assy
4
1 speaker connector (CN101)
3 chassis
3 chassis
5 top cover block
2 three screws (BV4 u 16)
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