� Each channel output in the digital signal (�� dB (there is no sound) ) input.
A
IC701 SurroundBack L out (pin 21) Is the output 2.5V fixing? Yes SurroundBack R out (pin 22) Is the output 2.5V fixing? Yes Center out (pin 23) Is the output 2.5V fixing? Yes LFE out (pin 24) No No No
Replace IC701
B
Replace IC701
Replace IC701
C
Is the output 2.5V fixing? Yes Surround L out (pin 25)
No
Replace IC701
Is the output 2.5V fixing? Yes
D
No
Replace IC701
Surround R out (pin 26)
Is the output 2.5V fixing? Yes Front L out (pin 27)