Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > Troubleshooting TVs and Video Sources
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 11-19-2021, 08:58 PM   #21
dskall
Badcaps Veteran
 
dskall's Avatar
 
Join Date: Oct 2016
City & State: Bakersfield ca.
My Country: usa
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 2,330
Default 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.
dskall is offline   Reply With Quote
Old 11-19-2021, 09:07 PM   #22
ajshoe
ajshoe
 
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 383
Default 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
ajshoe is offline   Reply With Quote
Old 11-19-2021, 09:22 PM   #23
ajshoe
ajshoe
 
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 383
Default 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 ! ).
ajshoe is offline   Reply With Quote
Old 11-19-2021, 09:32 PM   #24
dskall
Badcaps Veteran
 
dskall's Avatar
 
Join Date: Oct 2016
City & State: Bakersfield ca.
My Country: usa
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 2,330
Default Re: BN44-00274a dead

Have fun. Don't get caught in the riots.
dskall is offline   Reply With Quote
Old 11-20-2021, 08:55 AM   #25
ajshoe
ajshoe
 
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 383
Default Re: BN44-00274a dead

You should no that's way overblown. just like all the news nowadays
ajshoe is offline   Reply With Quote
Old 11-20-2021, 10:48 AM   #26
ajshoe
ajshoe
 
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 383
Default 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
ajshoe is offline   Reply With Quote
Old 11-20-2021, 11:43 AM   #27
dskall
Badcaps Veteran
 
dskall's Avatar
 
Join Date: Oct 2016
City & State: Bakersfield ca.
My Country: usa
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 2,330
Default Re: BN44-00274a dead

Should fix the problem.
dskall is offline   Reply With Quote
Old 11-29-2021, 04:14 PM   #28
ajshoe
ajshoe
 
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 383
Default 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
ajshoe is offline   Reply With Quote
Old 12-02-2021, 05:08 PM   #29
ajshoe
ajshoe
 
Join Date: Dec 2012
City & State: cincinnati, ohio 45215
My Country: usa
Line Voltage: 120VAC 60HZ
I'm a: Hobbyist Tech
Posts: 383
Default 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.
ajshoe is offline   Reply With Quote
Old 12-02-2021, 06:00 PM   #30
dskall
Badcaps Veteran
 
dskall's Avatar
 
Join Date: Oct 2016
City & State: Bakersfield ca.
My Country: usa
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 2,330
Default Re: BN44-00274a dead

Thanks for feedback.
dskall is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums 2003 - 2022
Powered by vBulletin ®
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 07:59 PM.
Did you find this forum helpful?