Got non working FP71G, I ordered repair kit and get picture now, but when I press power button to shutdown , screen stays white. I read earlier about same problem, but can't find the thread anymore...
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FP71G won't shut down, just white screen.
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Re: FP71G won't shut down, just white screen.
P-Fet on inverter is blown. It's the one that controls the brightness. Make a photo of your board and i can point it out.Originally posted by PeteS in CARemember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
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Re: FP71G won't shut down, just white screen.
Some info.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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Re: FP71G won't shut down, just white screen.
If you look at the attachment PDF, for example if Q812 (P-CH) is shorted, it will let B+ to supply full voltage to the Royer Osc which drives the Inverter transformer, which means the backlights will be on even when you turn the monitor off. It does that because the power supply is an always on, it is not turn off when you turn the monitor off, it only turns off the B+ switched devices.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
Comment
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Re: FP71G won't shut down, just white screen.
Great, thanks for posting back the repair result.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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