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Thread Tools | Display Modes |
11-19-2021, 08:58 PM
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#21 |
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Badcaps Veteran
Join Date: Oct 2016
City & State: Bakersfield ca.
My Country: usa
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 2,901
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Re: BN44-00274a dead
Ok, the NTC had me confused. It is same as a resistor. Still shouldn't pin 4 have 18+ volts on it to start and power the circuit? O/P said there was .35v
__________________
I assume no responsibility for any stupid suggestions I might post. |
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11-19-2021, 09:07 PM
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#22 |
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ajshoe
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 405
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Re: BN44-00274a dead
This PSB has me dreaming - I love challenges. I'm leaving for west coast for 2 week vacation. (probably dream about this board on vacation). be back in 2 weeks. thanks for the insight so far. I'm confident this samsung tv will live again. been following all advice and not looking at schematic. will spend some time on schematic. HEY - thats what makes this FUN ! I love plasma tvs. many THANKS. dskall - headed to Portland. OR
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11-19-2021, 09:22 PM
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#23 |
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ajshoe
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 405
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Re: BN44-00274a dead
want to thank everyone for there input here. listening to everyone here has not allowed me to look at schematic to get insight on this problem. I'm on vacation tomorrow to west coast. dskall - Portland, OR. thanks again and I'll be back on this soon (probably be dreaming for the next 2 weeks about this board ! ).
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11-19-2021, 09:32 PM
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#24 |
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Badcaps Veteran
Join Date: Oct 2016
City & State: Bakersfield ca.
My Country: usa
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 2,901
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Re: BN44-00274a dead
Have fun. Don't get caught in the riots.
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11-20-2021, 08:55 AM
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#25 |
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ajshoe
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 405
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Re: BN44-00274a dead
You should no that's way overblown. just like all the news nowadays
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11-20-2021, 10:48 AM
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#26 |
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ajshoe
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 405
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Re: BN44-00274a dead
removed HS802 (ICB801S) pin 4 - 5 are shorted. ordered part and a the 220UF 50V cap is weak also. it'll be 2 weeks before I report back. thanks
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11-20-2021, 11:43 AM
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#27 |
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Badcaps Veteran
Join Date: Oct 2016
City & State: Bakersfield ca.
My Country: usa
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 2,901
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Re: BN44-00274a dead
Should fix the problem.
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11-29-2021, 04:14 PM
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#28 |
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ajshoe
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 405
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Re: BN44-00274a dead
got back. replaced ICB801S and high ESR cap. have +5 V on STBY now! will put board in plasma tomorrow. need sleep
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12-02-2021, 05:08 PM
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#29 |
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ajshoe
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 405
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Re: BN44-00274a dead
quick follow up - put PSB in tv and set powers up perfectly. Believe all the bad solder joints (lot of them on PSB) killed the standby circuit. Thanks to all for the input and help.
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12-02-2021, 06:00 PM
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#30 |
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Badcaps Veteran
Join Date: Oct 2016
City & State: Bakersfield ca.
My Country: usa
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 2,901
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Re: BN44-00274a dead
Thanks for feedback.
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