Hello,
I got a Samsung SyncMaster P2470H here with flickering backlight. Its turns on for a few seconds then of again an so on. If I turn on the display for the first time, picture is fine for a few seconds but then starts flickering. Also a hissing/whining sound can be heard from the inverter board which starts loud and then fades out. Besides that the display is functional, responds to keypress and even displays picture from all inputs.
This monitor doesn't have an internal PSU and is fed direct 14V from my lab PSU. There are only 5 electrolytic caps on the two boards inside which all tested fine. Also no loose connections, burnt components or arcing.
What would be the best point to start troubleshooting? I would say transformer or CCFL?
Regards
I got a Samsung SyncMaster P2470H here with flickering backlight. Its turns on for a few seconds then of again an so on. If I turn on the display for the first time, picture is fine for a few seconds but then starts flickering. Also a hissing/whining sound can be heard from the inverter board which starts loud and then fades out. Besides that the display is functional, responds to keypress and even displays picture from all inputs.
This monitor doesn't have an internal PSU and is fed direct 14V from my lab PSU. There are only 5 electrolytic caps on the two boards inside which all tested fine. Also no loose connections, burnt components or arcing.
What would be the best point to start troubleshooting? I would say transformer or CCFL?
Regards
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