Sharp LC-32LE240M, Руководство по обслуживанию

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LC-32LE240M/340M(1stEdition)
5 – 6
No audio heard (3)
No HDMI sound heard. <INPUT 1>
(*INPUT 1 is digital audio.)
Does the HDMI image appear onscreen?
NO Refer to “<INPUT 1> in No external input video onscreen
(HDMI)”.
YES
No audio output from <INPUT 1> NO Check it if EDID is written or not.
YES
Are waveforms input in to the pin(3)-(6), (8), (9), (11), (12)
of IC3301 normally? NO Check peripheral circuits IC3301.
YES
Is there audio signal input at pin(6) of IC1701? NO Check connection between IC3301 and IC1701 and its periph-
eral circuits.
YES
Is the L-ch audio signal output at pin(28), (30) of IC1701 normal? NO Check IC1701 and its peripheral circuits.
Is the R-ch audio signal output at pin(12), (14) 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.