Sharp LC-60LE660U Service Manual page 50

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