Sharp LC-60 EQ10U - Page 194

LC-60/70EQ10U,SQ10U/15U/17U,TQ15U,UQ17U
6 – 15
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 “Setup” - “Advanced” - “Audio select” selected for “Video +
Audio” on the menu screen?
Is the “Setup” - “Advanced” - “Audio select” selected for “Video +
Audio” on the menu screen?
YES
NO
YES
NO
Set the PC audio output to "Video+Audio". Set the HDMI audio output to "HDMI+Analog".
Does the digital audio signal come from pins(AR11/AP11/AN9)(CPU_AOBCK/AOLRCK/AOSDATA0) of IC3301(CPU) to pins(8/9/7)(SP_BCLK/
SP_LRCLK/SP_DATA) of IC1702(Audio DSP)?
YES
NO
Check the line between IC3301 and IC1702 and their peripheral circuits.
• About the L/R Speakers.
Does the digital audio signal come from pins (27/29/32/34) of IC1702 (Audio DSP) to pin (4/3/2/1) of IC1903 (connector for L/R)?
YES
NO
Check IC1702 and its paripheral circuits.(X1701, etc.)
• About the L/R Speakers.
Check the connector (P1903) L/R speakers and their peripheral circuits.