Sharp Aquos LC-60C6600U, Service Manual

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LC-60/70LE660U,C6600U
6 – 16
No audio signal at Digital Audio Output terminal (Analog sound heard)
No HDMI1/2/3 audio. No audio at digital broadcast signal reception.
If no video appears, refer to "No external input video(HDMI) [HDMI1/
2/3]". If no video appears, refer to "No video at digital broadcast signal
reception".
Is there the SPDIF signal output(OPT_OUT) at pin(44) of IC3301(CPU)?
YES
NO
Check the IC3301 and its peripheral circuits.
Is there the SPDIF signal input at pin(1) of J510(OPTICAL OUTPUT)?
YES
NO
Check J510 and its peripheral circuits.
No optical output under the following conditions as per HDMI requirements.
* Audio contents protected.
* Audio frequency beyond 48kHz.
* Audio bit length beyond 16bits.
Check the optical cable and connected equipment condition.