LC-32A28L, LC-42A48L
38
No sound from external input devices (1)
Does not the sound of the audio signal input to input2(Component) go out?
Does not the sound of the audio signal input to input3(Component) go out?
MAIN UNIT:
YES
YES
No sound from external input devices (2)
Does not the sound of the audio signal input to input1 (Composite) go out?
MAIN UNIT:
YES
YES
No sound from external input devices (3)
Does not the sound of the audio signal input to VGA go out?
MAIN UNIT:
YES
YES
Is the audio signal properly sent to pin (8) (YPBPR_L_IN2) and pin
(11)( YPBPR_R_IN2) of CN103?
NO
Check the connection to CN103 and the external input device.
Refer to “No sound output in all modes”.
Is the audio signal properly sent to pin (99) (AIN4_L) and pin (97)
(AIN4_R) of IC U401?
NO
Check the line between CN103 and IC U401.
Is the audio signal properly sent to pin (4) (AV2_AudioLIN) and pin
(7) (AV2_AudioRIN) of CN105?
NO
Check the connection to CN105 and the external input device.
Refer to “No sound output in all modes”.
Is the audio signal properly sent to pin (103) (AIN6_L) and pin (101)
(AIN6_R) of IC U401?
NO
Check the line between CN105 and IC U401.
Is the audio signal properly sent to pin (2) (VGA_LIN) and pin (3)
(VGA_RIN) of CN102?
NO
Check the connection to CN102 and the external input device.
Refer to “No sound output in all modes”.
Is the audio signal properly sent to pin (102) (AIN5_L) and pin (100)
(AIN5_R) of IC U401?
NO
Check the line between CN102 and IC U401.
Is the audio signal properly sent to pin (8) (YPBPR_L_IN1) and pin
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