LC-60LE630U/U(A), LC-70LE735U
5 – 10
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 terminal on IC3301 side of
R3345?
NO Check the IC3301 and its peripheral circuits.
YES
Is there the SPDIF signal input at pin (1) of D516 (OPTICAL OUTPUT)? NO Check the line between D516 and IC3301.
YES
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 speakers and the optical cable.
No monitor audio output
Is the audio output from the monitor set at “VARIABLE” or
“FIXED” on the menu screen?
NO Check the IC3301 and its peripheral circuits.
YES
Are there the analog audio signal outputs at the terminals on
IC3301 side of R3332 (L) and R3333 (R)?
NO Check the IC3301 and its peripheral circuits.
YES
Does the audio signal come from R3332 (L) and R3333 (R) to
pins (5) (L) and (4) (R) of IC2703 (monitor audio output AMP)?
NO Check IC3301 and each signals lines/its peripheral circuits.
YES
Does the audio signal come from pins (7) (L) and (1) (R) of
IC2703 to pins (2) (L) and (4) (R) of J507?
NO Check the line between IC2703 and J507 and there peripheral
circuits.
YES
Check the L_MUTE line and its peripheral circuits.
(Q2702/Q2701, etc.)
Check the connector (J507) and their peripheral circuits, and
speakers and the Cable.
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