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No sound from the HDMI sound input terminal.
(INPUT 1 analog audio)
Is there the L-ch audio signal input from pin (2) of external input
terminal J506 (HDMI AUDIO IN) to pin (70) of IC3301?
Is there the R-ch audio signal input from pin (3) of external input
terminal J506 (HDMI AUDIO IN) to pin (71) of IC3301?
Are I2S signal output from the pins (180), (181) of IC3301 nor-
mally?
Is there L-ch audio signal input at pin(3) of IC2701?
Is there R-ch audio signal input at pin(7) of IC2701?
Is the L-ch audio signal output at pin(27), (28), (29) and (30) of
IC2701 normal?
Is the R-ch audio signal output at pin(11), (12), (13) and (14) of
IC2701 normal?
Are the audio signal L-ch and R-ch output at (1)/(2) and (3)/(4) of
P2701 normal?
Check speakers and their peripheral circuits.
No audio heard (4)
YES
YES
YES
YES
YES
YES
NO
Check peripheral circuits of IC3301.
NO
Check connection between IC3301 and IC2701 and its periph-
eral circuits.
NO
Check IC2701 and its peripheral circuits.
NO
Check circuit between IC2701 & P2701.
6 – 8
LC-32L400M
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