Onkyo TX-NR757, Service Manual

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5 4 3 2 1 6
D
C
A
B
D
C
A
B
5 4 3 2 1 6
Trouble Shoot
TX-NR555/656/757
TX-RZ610/710, HT-R695
Here the trouble shoot which focuses on the hardware troubles regarding PCB assembly is explained.
Of course, with actual repair there are also troubles due to damaged Power Transformer, Wiring, soldering etc. in addition to PCB assembly.
No Sound (Analog in)
Process Check Point Damaged PCB
1
J6504(BATRM-2023)
● +24V
BAAF-1979
2
P8002A(BADG-1985)
BAAF-1979
3
● J4606(BAAF-1979)
BAAF-1979
4
Q6001, Q6021(BAAF-1979)
● Base
BACLA-1988
5
P2800B(BAPRC-2034)
BAAF-1979
6
● P6021(BAAF-1979)
The amplified beautiful wave.
BAAF-1979
7 BATRM-2023
No Good
OK
No Good
OK
No Good
OK
No Good
OK
No Good
OK
No Good
OK
5 -15V 7 +15V
10 +3V (HIGH)
BADG-1985 BAPRC-2034
BATRM-2023
BAAF-1979