Sharp LC-26SB25E, Service Manual

Page: 41 / 172

2008-03-14
LC-26SB25E/S/RU, LC-32SB25E/S/RU, LC-42SB55E/S/RU
41
No sound from external input devices (4)
↓
Does not the sound of the audio signal input to VGA go out?
MAIN UNIT:
↓
↓
YES
↓
YES
No sound from external input devices (5)
↓
Does not the sound of the audio signal input to HDMI1/2/3 go out?
↓
↓
YES
Is the audio signal properly sent to pin (2) (VGA_AudioLIN) and pin
(3) (VGA_AudioRIN) of CN555?
NO
Check the connection to CN555 and the external input device.
Refer to “ No sound output in all modes ” .
Is the audio signal properly sent to pin (K25) (VGA_LIN) and pin
(K26) (VGA_RIN) of IC U400? NO Check the line between CN555 and IC U400.
Refer to
“
No sound output in all modes
”
.
Is picture of the signal input from HDMI1/2/3 displayed? NO Refer to “ Does not the picture of the HDMI signal input to
HDMI1/2/3 go out?
”
.