Sharp Aquos LC-60C6600U, Service Manual

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LC-60/70LE660U,C6600U
6 – 13
No audio (2)
[PC analog audio input] PC-IN No audio. [HDMI analog audio input] HDMI2 No audio.
Is PC-IN selected on the input select menu screen? Is HDMI2 selected on the input select menu screen?
YES
NO
YES
NO
Refer to ":No external input video [PC-IN]". Refer to ":No external input video [HDMI2]".
Is the audio output selected for "Variable" on the menu screen? Is the audio output selected for "Variable" on the menu screen?
YES
NO
YES
NO
Set the audio output to "Fixed". Set the audio output to "Fixed".
Is the "Initial Setup" - "Audio select" selected for "HDMI + Analog"
on the menu screen?
YES
NO
Set the HDMI audio output to "HDMI+Analog".
Does the audio signal come from pins(2)(L) and (3)(R) of input terminal(J501) to pins(8)(L) and (9)(R) of IC3301(CPU)?
YES
NO
Check the audio line between J501 and IC3301.
Does the analog audio signal come from pins(11/12)(SP_L/SP_R) of IC3301(CPU) to pins(22/32)(SP_L/SP_R) of IC1701(Audio AMP)?
YES
NO
Check the audio line between IC3301 and IC1701, and their paripheral circuits.
•
About the L/R Speakers.
Check the connector (P1701) L/R speakers and their peripheral circuits.