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Old 09-04-2018, 04:11 PM   #24
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Join Date: Feb 2010
City & State: S.F. Bay area
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Default Re: HANNS G HZ281 White Screen

That is Voltage regulator IC, not transistor. See what Voltage you have on Vin and Vout pin.
I suspect the GAMMA Voltages are generated by U300, 301, get the P/N on both of them.
BTW, designator for Transistor is 'Q??', IC is U??

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Basic LCD TV and Monitor troubleshooting guides.

Voltage Regulator (LDO) testing:

Inverter testing using old CFL:

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TV Factory reset codes listing:

Last edited by budm; 09-04-2018 at 04:16 PM..
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