Toshiba 15DL15 Service Manual page 38

No Sound
(ALL MODE)
Check the input
source
Pass
Check the input/output
of IC200 of Main B/D
Pass
Ref.10
Check the input/output
of IC600 of Main B/D
Pass
Check the speaker
Pass
Check the speaker wire
Sound Input :
Ref.10
IC600 (Audio AMP), #3, 5
Change source
Input
Fail
Pass
Re-soldering or
Change IC200
Fail
Re-soldering or
Change IC600
Fail
Change
speaker
Fail
- 38 -
No Sound
(Only VIDEO 1 or PC mode)
Check the R750 Level
Video1 : High
PC : Low
Pass
Check Input / Ouput
& 12V Of IC 702
Fail
Chang IC 702
Check short
circuits of Main B/D
Fail