LC-60LE630U/U(A),6300U/U(A)/U(B),LC-70LE735U
5 – 7
No audio (2)
[PC analog audio input] PC IN No audio
[HDMI analog audio input] HDMI1 No audio
Is PC IN selected on the input select menu screen?
Is HDMI1 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 [HDMI1]”.
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 “PC Audio Select” selected for “PC IN” on the menu screen?
Is the “PC Audio Select” selected for “HDMI1” on the menu screen?
YES
NO
YES
NO
Set the “PC Audio Select” to “PC IN”.
Set the “PC Audio Select” to “HDMI1”.
Is the HDMI audio output selected for “Digital” on the menu screen?
YES
NO
Set the HDMI audio output to “Analog”.
Does the audio signal come from pins (2) (L) and (3) (R) of input terminal (J506) to
the terminal on IC3301 side of C3327 (L) and C3328 (R)?
NO
Check the line between J506 and IC3301.
YES
Does the I2S audio signal come from terminals on IC3301 side of R3413
(I2S_MCLK), R3414 (I2S_SCLK), R3415 (I2S_LRCLK), and R3416 (I2S_DAT) to
pins (5) (MCK), (7) (SCLK), (8) (LRCLK), and (5) (SDATA) of IC2704 (AMP)?
NO
Check IC3301 and its peripheral circuits.
Check the line between IC3301 and IC2704.
(N_AMP_RST, SP_MUTE etc.)
YES
Is the audio output from IC2704 as specified?
NO
Check IC2704 and its peripheral circuits.
YES
Check the connector (P2701), speakers and their peripheral circuits.
