Samsung PS42B430P2WXXH, Service Manual, Page: 32 / 65

Troubleshooting
Samsung Electronics 4-7
Condition Name Description Related Board
No Voltage Output Operating Voltage don't exist PSU
No Display Operating Voltage exist, but an Image doesn't exist on screen Y-MAIN, X-MAIN, Logic Main, Cable
Abnormal Display Abnormal Image (not open or short) is no screen Y-MAIN, X-MAIN, Logic Main
Sustain Open Some horizontal lines don't exist on screen Scan Buffer, FPC of X/Y
Sustain Short Some horizontal lines appear to be linked on screen Scan Buffer, FPC of X/Y
Address Open Some vertical lines don't exist on screen Logic Main, Logic Buffer, TCP
Address Short Some vertical lines appear to be linked on screen Logic Main, Logic Buffer, TCP
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Drive Board Troubleshooting
1) Troubleshooting Summary