The symptoms are dead set. After looking into the circuits, there are 3 modules. A power supply, main board and a video board. I may or may not be using the right terms. The power supply is obvious. The board that all the LED strips attach to, I'm calling a video board. With the unit plugged into 110 vac and the video and main boards unplugged, I have 3 voltages coming from the power supply. 5vdc, 14vdc, 24vdc
When I plug the two boards into the power supply, all 3 of those power supply voltages drop significantly. I have no schematic on this unit and the boards are not labeled as to where...
firefighterfox
Member
Last Activity: 07-08-2022, 04:16 PM
Joined: 12-29-2015
Location: Spring, Tx
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Westinghouse L2410NM Power supply?
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Re: Westinghouse L2410NM No Power, No LED
Good afternoon everyone. I too have a Westinghouse L2410NM No Power, No LED. I have been studying this discussion and there is a wealth of information posted here on the monitor in question. Some of the info goes a little over my head. I'm needing some direction on my diagnosis. Should I start the discussion here or start a new one?
Sorry for the confusion, I just didn't want to get off on the wrong foot. -
Re: LG 50PA5500 plasma won't turn on
Well I'm finally back on the LG TV trail. It's been sitting under cover on my work bench. I think it's time to "use it or loose it".
Starting from scratch because I don't remember where I left off. Just checked power supply voltages. 5 volt supply reads 10 volts, VA reads 121 volts, and VS reads 450 volts. Obviously way too high.
I'll try another meter to be sure. Also the voltage remains the same with or without the y sustain ribbon plugged in.
Also, do I need an antenna or video source plugged into the tv while...Leave a comment:
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Re: Lg 50PA5500 repaired?
One quick update. After getting the TV mounted and hooked up to a signal with a good quality picture I see that there is a very thin black line that goes all the way across the screen about 2 inches below the top. That is the only thing that keeps it from being a 100% perfect picture.
Anyone with suggestions of what would be the cause/problem?
thanks,
firefighterfoxLeave a comment:
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Lg 50PA5500 repaired?
Hello Forum,
I would like some information / opinions on my Lg 50PA5500 plasma flat screen tv.
I purchased the tv as a dead set. It came with no base or wall mount. I was able to get the set working by replacing the Y-sus and upper buffer board.
I have read several comments about this model having buffer board ribbon failure problems somewhere along the edge of the set. So far I have no indication that there is a problem in this area.
So here is my thoughts for what they are worth,
1st: if it's not broke, DON'T FIX IT
2nd: attempt to repair the issue that... -
Re: LG 50PA5500 plasma won't turn on
Hello Forum,
I would like some information / opinions on my Lg 50PA5500 plasma flat screen tv.
I purchased the tv as a dead set. It came with no base or wall mount. I was able to get the set working by replacing the Y-sus and upper buffer boards.
I have read several comments about this model having ribbon failure problems. I have no indication that there is a problem in this area.
So here is my thoughts for what they are worth,
1st: if it's not broke, DON'T FIX IT
2nd: attempt to repair the issue that causes...Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
Works great with the new factory remote. No more problems. Thanks for all the help. Are there any other caps I should replace before I button this thing up?Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
I should be getting the factory remote in the mail today. It did not come with one when I bought it so I have not bee able to try that function to see what it will do. I'll let you know when it gets hereLeave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
Vertical sync is fine. Never rolls. It does change on its own. Tried searching loose connections and freeze spray but made no difference. It has a mind of its own.Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
Did my pictures help to understand what I was talking about? Are those zoom settings controlled on the power supply board?Last edited by firefighterfox; 01-07-2016, 09:17 PM.Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
and here is No. 3...Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
sorry here is the No. 2 pic...Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
[ATTACH]125790[/ATTACH]
[ATTACH]125792[/ATTACH]
Well, I had to get my daughter to walk me through process to load
pictures.
Hopefully this will work? Three images:
one shows the correct image(black band,border at the top and bottom of the screen)
two shows bottom black band gone(image goes all the way to the screen bottom)
three shows bottom and top black band gone(picture fills entire screen)
It occurs to me that perhaps this could be a problem in the ZOOM circuit and not...Last edited by firefighterfox; 01-07-2016, 06:29 PM.Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
When normally watching a movie there will be a blacked out area above and below the picture. After warming up the picture will stretch out beyond the bottom of the blacked out area at the bottom. And later the top part of the picture will do the same thing. This leaves no blacked out areas on the screen and elongated images. Similar to the old verticle fold over issues we used to experience in the old days.Last edited by firefighterfox; 01-07-2016, 12:28 PM.Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
I have taken pics of the problem, but getting them on here is another issue.Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
Well it's nice to meet an old tech. My dad and I opened a shop in the 70's. Mostly tube work back then. 6JE6 &6DW4 were a hot item. SO I know now that you understand my description of the problem. It did occur to me that it might not even be called a vertical deflection problem now a days. Sorry, I don't know what "ESR" is or means.Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
Well, as you predicted the 2 new replacement caps did not fix the vertical deflection issue.(they were bulging) I'm an old school TV tech.(mid 80's) In those days I'd be using a can of freeze spray or a heat gun on electrolytic cap. or output transistors to isolate a intermittent problem. Is does appear to act up after the set has been on for while. Any idea where the vertical deflection circuit is located on the board/TV? I did talk to shopjimmy but they had no information about what circuits their kit components are located in.Last edited by firefighterfox; 01-07-2016, 11:58 AM.Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
Yes the two caps I replaced are on the power supply board you identified. Hopefully when I get the correct caps in, this vertical/stretching will go away. They are located on the right side a little over half way up, just above the small transformer and just below the wiring harness plug.
Yours thoughts?
GregLast edited by firefighterfox; 01-06-2016, 06:45 PM.Leave a comment:
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Re: Phillips 47PFL3603D/F7 No Power
I am also looking for a schematic for the Philips: 47PFL3603D/F7 Specifically the power supply board show information on C-108 & C-112 and if they are in the vertical circuit.
Thanks,
GregLeave a comment:
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Re: New Members - please post your introductions here
My name is Greg. I am retired and like to fix anything. This forum appears to have a lot of people with the same infection. It should be fun sharing projects.Leave a comment:
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