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No sound
Check Sound supply:
A_board P804 #1, 18V
PASS
Speaker
output check :
Is there waveform
of P601 #1?
Replace Speaker
Measure
A_power board
trans output:
FAIL
18V at power_board
CN803 #1
PASS
Check
If A_board 18V
is short-circuited.
Resistance btween A_board
P821 Pin No.2
and 3 infnity?
Replace A_board
FAIL
- 15 -
Replace
D_power_board
FAIL
Replace A_board
FAIL
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