5 4 3
2
1
6
D
C
A
B
D
C
A
B
5 4 3
2
1
6
Trouble Shoot
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 Picture (Component in/ HDMI out)
TX-SR343
TX-SR343/444/HT-R494
Process Check Point Damaged PCB
1
P2801B (BAPRC-1758)
● No.2 pin : +15V
BAVD-1735
2
P2800B (BAPRC-1758)
● No.11 pin : +5V
BAPRC-1758
3
P2800B (BAPRC-1758)
● No.13 pin : signal
● No.15 pin : signal
● No.17 pin : signal
BAVD-1735
4 BAPRC-1758
BAPRC-1758
BAVD-1735
No Good
OK
No Good
OK
No Good
OK
●Each voltage is shown as the reference value.
Value error : Plus or minus 15%
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