Insignia 9246MF7010 Manual Del Usuario página 18

3、No sound (TV input as an example)
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Troubleshooting Guides
No sound.
Y
Check if there is input
Y
Check the voltage of
signal to NV02-PIN4 &
X604-PIN2 & PIN3.
PIN12?
N
Check if there is output
Check power board.
signal from N612-
Replace main board
Y
Check NV02 and its
peripheral circuits.
N
Y
PIN63 & PIN64?
N