Re: Samsung FPT5084 50" Plasma - Randomly shuts off
Capacitor CQ810 ( 50V 47uF ) had high ESR ~18ohms. Once i replaced the capacitor the power board would click, but no startup. Found no 15V output from UQ802 ( 15V regulator ). Replaced the 15V regulator and the tv is back working. Heat cycled it for 2 days, no more shutdowns.
Sony_crack
New Member
Last Activity: 10-04-2022, 05:54 PM
Joined: 12-21-2020
Location: Madison
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Re: Help troubleshooting my Samsung Plasma TV FPT5084 PSU (BN44-00175A)
its 50V 10uF...i found it in a box ...Leave a comment:
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Re: Help troubleshooting my Samsung Plasma TV FPT5084 PSU (BN44-00175A)
Not that I could be much help, but if you still have the power board.......could you share was capacitor value is at CP814? It's right next to PFC hybrid near main filter caps. I received a board and oddly......that capacitor has been removed and I'm unsure what value should be there.
ThanksLeave a comment:
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Re: Samsung FPT5084 50" Plasma - Randomly shuts off
I have the shutdown after start and the alarm on the power board says TH_DET....if I put a fan on the thermistor it'll keep running. Replacing the thermal compound didn't help me, but I believe I have a similar or same problem.Leave a comment:
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Re: Samsung BN44-00175A Schematic needed
Me too, power board clicks off on TH_DET on alarm board. If I put a fan on THQ device on heat sink it keeps running.... thinking something is going over current causing the excess heat - OR - the thermistor is bad....Leave a comment:
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