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Old 05-14-2015, 12:56 PM   #42
Behemot
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Join Date: Dec 2009
City & State: Prague, 504'52.22"N, 1423'30.45"E
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Default Re: Dell 2007FPB teardown

So the DTC for the +12V part of the TL1451 is at 2.44 V which means it is at 0 duty cycle. I think the problem is here.

I have checked all the corresponding SMD resistors and tiny SMD transistors around other TL1451s and all of the values are the same. So it seems those are OK. That really leaves me with bad TL1451 only?

Replaced TL1451 from scrapped display, no change! Bloody hell this PoS.
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Last edited by Behemot; 05-14-2015 at 01:46 PM..
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