Re: samsung 58 inch plasma
getting the same reading from the top pin on the black connector
getting the same reading from the top pin on the black connector
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Re: samsung 58 inch plasma
OK, now try without buffers; any change? Y-main is looking bad.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: samsung 58 inch plasma
I'll have to check it tomorrow I'll do it as soon as I finish thank you for your help so far mate its very much appreciatedComment
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Re: samsung 58 inch plasma
Can they be fixed ? Also would that transitor being slightly different make any differenceComment
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Re: samsung 58 inch plasma
Without schematics, you're likely to spend a lot of money and time fixing it. Beyond my time, at the moment, at least; you're free to try yourself. The X-main should be checked next, I'll attach an image when you're ready.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: samsung 58 inch plasma
Checked the board with out buffers and readings don't changeComment
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Re: samsung 58 inch plasma
Will check X-main tonight, when I get back from uni.
Just for comparison, here's a Y-sustain(=Y-main) output test on a Fujitsu/Hitachi plasma panel I was testing: http://www.youtube.com/watch?v=nGr5ydz9gTk&t=3m10sLast edited by tom66; 01-30-2014, 05:01 AM.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: samsung 58 inch plasma
Hi mate just tried it on the same blue thing on the x main and got a much better readingComment
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Re: samsung 58 inch plasma
any more checks i could do on the y main ?Comment
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Re: samsung 58 inch plasma
Could you show X-main waveform.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: samsung 58 inch plasma
Here It goes up and down a bit thoughAttached FilesComment
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Re: samsung 58 inch plasma
Still doesn't look right - show me where you're probing please.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: samsung 58 inch plasma
The blue one like the other sideAttached FilesComment
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Re: samsung 58 inch plasma
Which lead of that; top or bottom?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: samsung 58 inch plasma
topComment
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Re: samsung 58 inch plasma
The wave should look better if X-main were working, then.
Check that the X- and Y-main boards are both getting Vcc.
Could be a bad control board.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: samsung 58 inch plasma
i think it might be the control board too there is a glass fuse on it thats only got power to one side nothing at all to the other just where the power comes into it i was just going round it before just checking everything if that makes any sense ??Comment
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Re: samsung 58 inch plasma
Where is this fuse?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: samsung 58 inch plasma
Here I just took it off to have a look at the backAttached FilesComment
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Saved this beast from the landfill this weekend.
Manfactured July 2013 in Mexico.
I love working on plasma TVs.
Its been a while but I was lucky enough to find 2 this week.
The TV powers on and stays on but no picture. Havent checked for sound yet.
No bulging caps although the insides are pretty dusty and the boards are discolored from many years of high heat.
Will start troubleshooting tonight.
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Hi, I have a Samsung UE50TU with:
- sound and backlight, but no picture
- when it arrived, it had a picture for a few seconds
- it keeps rebooting
- without ribbon cable between the two panel boards, it does not reboot but I have no picture
- without cable between mainboard and lcd panel, it does not reboot (but obviously i have no picture)
- when i try a tape fix, its keeps rebooting, unless I tape off pin 1 (the innermost pin). In that case it does not reboot but I have no picture.
- without cable between mainboard and lcd panel and with a jumpered... -
TV was working fine and then just shutdown one day. It will not turn back on. I get a backlight for a little while, then it just clicks and won't fully boot.
I took off the back panel and did the basic troubleshooting and it seems like it's a panel issue.
The backlight will stay on if I disconnect either of the ribbon cables going to the panel. I've watched this video (https://www.youtube.com/watch?v=77tymvTJDxo) and am wondering if this could be the issue, just a bad cap on the panel.
Any assistance is appreciated. -
This was my main TV for the last 6 years. I'm not inclined to throw out a $2600 TV so quickly so I'm trying to investigate the issue.
Problem
TV was disconnected from power for 6 months during construction. When I plugged it yesterday picture was fine, after 30 seconds it dimmed then started developing horizontal lines, picture then starts to ghost vertically until it degrades into vertical streaks. TV always displays a perfect picture when cold. I can unplug TV for 5 minutes and plug it back in and picture is restored for 20 seconds. I can also keep it in standby mode... -
Hello all,
This is my first post, but long term lurker on the form learning as much as possible about these TV's. I was given this TV as due to a power outage of constant On/off of power to TV. The TV originally would just click on and off (Typical Reboot Cycle). I opened the back of the TV, and troubleshooted by taking the 96 pin LVDS off one at a time to see if I had a picture on either side. I finally fixed the reboot cycle by finding the error on the left side of the screen off connector CN 1301, and the TV would stay on. Further troubleshooting led me to the driver boards where...
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