LC-24LE170I
7 – 6
No audio heard (3)
No HDMI sound heard. <INPUT 1>
(*INPUT 1 is digital audio.)
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(HDMI)”.
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.
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YES
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4) (10) of IC1701?
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I
Check connection between IC3301 and IC1701 and its periph-
eral circuits.
YES
NO
Check IC1701 and its peripheral circuits.
Is the R-ch audio signal output at pin(26),(27),(29),(30) of IC1701 normal
YES
Are the audio signal L-ch and R-ch output at (3)/(4) and (1)/(2) of
P1701 normal?
NO
Check circuit between IC1701 & P1701.
YES
Check speakers and their peripheral circuits.
Is the L- ch audio signal output at pin (20),(21),(23),(30) of IC1701 normal
YES
Are waveforms input in to the pins
(pin 64 to 71)
of IC3301 normally?
NO
Check peripheral circuits IC3301.
