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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 (U3 ) of IC3301?
Is there the R-ch audio signal input from pin (3) of external input
terminal J506 (HDMI AUDIO IN) to pin (U1) of IC3301?
Are 12S signal output from the pins ( J19 )
,(J20 ) of IC3301 normally ?
t s I
e h
e r
u a
o i d
g i s
l a n
p n i
t u
t a
n i p
6 (
Is the L-ch audio signal output at pin(26),(27),(30),(31)
of IC1702 normal?
Is the R-ch audio signal output at pin(10),(11),(14),(15)
of IC1702 normal?
Are the audio signal L-ch and R-ch output at (3)/(4) and (1)/(2) of
P1701 normal?
Check speakers and their peripheral circuits.
No audio heard (4)
YES
YES
YES
o )
I f
1 C
0 7
? 2
YES
YES
YES
NO
Check peripheral circuits of IC3301.
N
O
C
heck connection between IC3301 and IC1702 and its periph-
eral circuits.
NO
Check IC1702 and its peripheral circuits.
NO
Check circuit between IC1702 & P1701.
4 – 7
LC-32LE265T / LC-40LE265T
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