Re: RUNTK 5351TP No Picture Failure
Hello,waking up this thread.
i have the same board replaced Ic200 it works now but i have horizontal lines anyone can help???
GEORGIO1980
New Member
Last Activity: 04-07-2025, 05:16 AM
Joined: 01-13-2014
Location: Afghanistan
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Re: Samsung P2770hd strange backlight issue (stumped)
Hello,returned to leave a feedback for the backlight problem.Today i replaced the inverter transformer TM-09210 and it works!!!!! I forgot to measure the ohms of the new transformer to compare the values but the result is that the old one is defective.
Thank you for your help.Leave a comment:
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Re: Samsung P2770hd strange backlight issue (stumped)
I have replaced all the electrolytic caps on the board. You mean the high voltage caps? No I haven't tested.I have already ordered the transformer, it will arrive tomorrow. Hope it will work.Leave a comment:
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Re: Samsung P2770hd strange backlight issue (stumped)
One output is 1.34Kohm nd the other is 1.26Kohm.The input is 0.2ohm. Is it good readings?Leave a comment:
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Re: Samsung P2770hd strange backlight issue (stumped)
Yes I will do that thanks for reminding. My transformer is the TM-09210 , should have the same resistance?Leave a comment:
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Re: Samsung P2770hd strange backlight issue (stumped)
Thanks for your answer.The lamps I tried was pulled off from a working monitor but they are a bit smaller than the original. The only test I am thinking to do is to bypass the protection to see if it will work.I have found a transformer to buy but I am not sure this is the fault and I dont want to waist my money.In the other hand I have not any other option, so I am stuck.Tomorrow I will check the lamps again one by one with an external inverter to be sure that they are ok.Leave a comment:
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Re: Samsung P2770hd strange backlight issue (stumped)
Hello, I have the same problem in this lcd. backlight turn on for a second then turned off.I have tried another pair of lamps from another lcd but its doing the same thing.Change all the caps but no result.Driver Ic the SEM2105 and not the SEM2005.
What can I do? Should I order a new transformer? Cannot find the ON and the A-DIM pin you said....Leave a comment:
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