LG 15LS1R Service Manual page 17

No Raster
Check LED Status
U401~U405, U407, U409
Check the input/
Connector or inverter
Check panel link
Cable or module
Check input source cable and jack
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
on display unit
Pass
Check
Pass
Output of U301
Pass
Check inverter
Pass
Pass
:[B]Process
Fail
Fail
Fail
Fail
Fail
- 17 -
Repeat [A] PROCESS
Change U401~U405,
U407, U409
Change U301
Change inverter
connector or inverter
Change panel link
cable or module
LGE Internal Use Only