Samsung SP403JHPX/UMG Service Manual page 32

Lcd projection television
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Troubleshooting
6-2 No Power
Check Stand-by 5V
on the Main Board
No
See "6-5 No Standy"
6-2
Yes
Check
SDA1/SCL1
on the Micom
Module
No
Check/Replace
Tuner
MICOM Module
AUDIO Module
A/V Terminal Board
(TDA6920)
Progressive Module
LCD Control Board
(TDA4780)
Check LED Operation
Yes
See "5-7 LED Display
Check"
Samsung Electronics

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