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rickmav
Joined: 08 Jul 2014
Posts: 6
Location: Canada,Quebec
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 Posted: Tue Jul 08, 2014 8:16 am Post subject: Samsung plasma pn50B550t2f wont turn on |
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Mine just wont turn on,I got no blinking light,sound...just dead, and after watching video on U-tube;it seem that most the time it's a capacitor that blew up or some real cheap part.
so any one here can guide me on what to check or test first?
so far I check the power cord all the way to the power board by doing
a continuity test.
then see pic below;
#1 seem to be the one that break but if I compare it to a new one;
on the 2uf scale the new one read .063 and the one on the board read .069,should I still change it?
#2 is those 3 cap I decide to test,those 3 cap are 450V and 150uf and on the 200uf scale they all read 1 (this was done with cap still on the board),they should read 150uf +- 10% no????
#3 well I was just wondering about this one
or should I check other stuff?
thanks for any help. |
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JTS1957
Joined: 21 Jan 2009
Posts: 2388
Location: Far, Far Away
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| Posted: Tue Jul 08, 2014 1:29 pm Post subject: |
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Oh, WOW!
IMAX
U-tube has too many videos for me to watch to find the ONE u mean...
I see two fuses. I see pin identifications alongside each connector, yet no mention of measuring ANY of these. |
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rickmav
Joined: 08 Jul 2014
Posts: 6
Location: Canada,Quebec
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| Posted: Sun Jul 13, 2014 5:49 am Post subject: Samsung plasma pn50B550t2f wont turn on |
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yeah sorry for the Imax pic
I check all fuses and the power cord all the way to the power board,it's all good. |
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JTS1957
Joined: 21 Jan 2009
Posts: 2388
Location: Far, Far Away
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| Posted: Sun Jul 13, 2014 7:40 am Post subject: |
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| JTS1957 wrote: | | I see pin identifications alongside each connector, yet no mention of measuring ANY of these. |
I count five connectors (with approximately 30 pins in TOTAL) to that board and you've reported twice about two pins on only one connector. Is there some mental deficiency I should be aware of?
SMPS part number also wouldn't hurt. |
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rickmav
Joined: 08 Jul 2014
Posts: 6
Location: Canada,Quebec
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| Posted: Mon Jul 14, 2014 9:34 am Post subject: |
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I count five connectors (with approximately 30 pins in TOTAL) to that board and you've reported twice about two pins on only one connector. Is there some mental deficiency I should be aware of?
well,I'm a truck driver who can barely walk due to an accident,so yes I got a mental deficiency;I'm mad.
as for TV repair;all I know is I can test thing and try to find out where is the problem so you must speak to me in idiot proof mode.
sorry I should have said this before about myself,
,but no way a 2,500$ TV break after only 4 years when I know it's a part that cost at most 5 to 30$,once I fix this TV;I'll give it away and fix another one.
this world is getting stupid and have;like you say;mental deficiency;
they fill garbage dump with ton's of TV/computer/cell phone for no good reason and just buy new one and this must be stop at all cost. |
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JTS1957
Joined: 21 Jan 2009
Posts: 2388
Location: Far, Far Away
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| Posted: Mon Jul 14, 2014 4:00 pm Post subject: |
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| rickmav wrote: | | all I know is I can test thing and try to find out where is the problem |
So test for the things (that you can) that are asked for. How about pictures of the connectors/labels & part info (?BN44-00274A?) areas/sticker such that the alpha-numeric information can be read? |
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rickmav
Joined: 08 Jul 2014
Posts: 6
Location: Canada,Quebec
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| Posted: Thu Jul 17, 2014 5:55 am Post subject: |
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50" :BN44-00274A
(LJ 44-00172A)
the other set of # is for the 42" model
and yes all:alpha-numeric information can be read on any board. |
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JTS1957
Joined: 21 Jan 2009
Posts: 2388
Location: Far, Far Away
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| Posted: Thu Jul 17, 2014 7:51 am Post subject: |
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DVM - Set to read DC volts.
Red lead to CN801 pin #3
Black lead to CN801 pin #4 |
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rickmav
Joined: 08 Jul 2014
Posts: 6
Location: Canada,Quebec
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| Posted: Thu Jul 17, 2014 10:16 am Post subject: |
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| JTS1957 wrote: | DVM - Set to read DC volts.
Red lead to CN801 pin #3
Black lead to CN801 pin #4 |
I read zero,did this with CN801 unplug but all other plugin and I tried also with all unplug except the 120 ac V plugin. |
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rickmav
Joined: 08 Jul 2014
Posts: 6
Location: Canada,Quebec
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| Posted: Thu Jul 17, 2014 10:21 am Post subject: |
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another clue maybe;
if all is plug and I touch the power button on touch pad of TV,I can ear
a faint "tick" coming from the board at the end of CN801 (where all the outside connection can be plug) |
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