Sharp LC-32LE150M Service Manual page 25

No HDMI sound heard. <INPUT 1>
(*INPUT 1 is digital audio.)
Does the HDMI image appear onscreen?
YES
No audio output from <INPUT 1>
YES
Are waveforms input in to the pins of IC3301 normally?
YES
Is there audio signal input at pin (4),(10) of IC1701
YES
Is the L-ch audio signal output at pin(26),(27),(29),(30) of IC1701
normal ?
Is the R-ch audio signal output at pin (20),(21),(23),(24) of IC1701
normal ?
YES
Are the audio signal L-ch and R-ch output at (1)/(2) and (3)/(4) of
P1701 normal?
YES
Check speakers and their peripheral circuits.
No audio heard (3)
NO Refer to "<INPUT 1> in No external input video onscreen
(HDMI)".
NO Check the EDID.
NO Check peripheral circuits IC3301.
NO Check connection between IC3301 and IC1701 and its periph-
eral circuits.
NO Check IC1701 and its peripheral circuits.
NO Check circuit between IC1701 & P1701.
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LC-32LE150M