LC-32D47U/LC-32SB27U/LC-C3237U
6 – 7
No audio (1)-2
INPUT-3 No audio.
Is INPUT-3 selected on the input select menu screen?
YES
NO
Refer to “: No external input video [INPUT-3]”.
Is the audio output selected for “VARIABLE” on the menu
screen?
YES
NO
Set the audio output to “FIXED”.
Does the audio signal come from pins (5) (L) and (4) (R) of input
terminal (J501) to pins (14) (L) and (5) (R) of IC503 (AUDIO
SWITCH)?
YES
NO
Check the line between J501 and IC503.
Does the audio signal come from pins (13) (L) and (3) (R) of
IC503 to pins (B2) (L) and (A1) (R) of IC8001 (CPU)?
YES
NO
Check IC503/IC8001 and its peripheral circuits
(IC502, Q509, Q510,etc).
Check the line between IC503 and IC8001.
Does the audio signal come from pins (C4/A3) (SPOUT_L/R) of
IC8001 (CPU) to pins (3) (INLP), and (7) (INRP) of IC2701
(AMP)?
NO
Check the line between IC8001 and IC2701, and their peripheral
circuits (Q1306/Q1307, AMP_MUTE line, etc).
YES
Is the audio output from IC2701 as specified?
NO
Check IC2701 and its peripheral circuits.
YES
Check the connector (P2701), speakers and their peripheral cir-
cuits.
Summary of Contents for AQUOS LC-C3237U
Page 26: ...LC 32D47U LC 32SB27U LC C3237U 5 5 8 click means COMPLETE 9 Click OK ...
Page 30: ...LC 32D47U LC 32SB27U LC C3237U 5 9 ...
Page 66: ...LC 32D47U LC 32SB27U LC C3237U 7 2 M E M O ...
Page 106: ...LC 32D47U LC 32SB27U LC C3237U 10 32 M E M O ...
Page 124: ...LC 32D47U LC 32SB27U LC C3237U 18 8 SUPPLIED ACCESSORIES X4 X5 X6 X7 X12 X2 X1 X8 X9 X10 X3 ...
