Hi guys. I just wanted to know if it would be ok to test boards I repair in a plasma tv with a cracked screen. I will repair the board then install it in the TV. Its an XSUS board. Will it short out the board if the screen is cracked or the panel is bad?
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Re: Bad Panel/Cracked Screen
Depends on the brand and model. -
Re: Bad Panel/Cracked Screen
Well think of it like this, X and Y boards both apply two very different variating voltages across the electrodes in the panel. When you crack the screen it can short these electrodes together which if you try to power up the set can cause issues as you will get voltages where they should not be which can make things go bang.
If its a light crack and the electrodes dont short out the gas might just creap out the panel and it wont be able to ignite it any more in which little damage will be done.Last edited by ReeceyBurger123; 04-04-2016, 06:42 AM.Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Re: Bad Panel/Cracked Screen
Its a Samsung PN51D550C1FXZA, Plasma TV. Here is a pic of the crack on the screen. How would I go about testing the electrodes for shorts? I do get a loud buzzing sound if I have the YSUS board connected to the control board.
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Re: Bad Panel/Cracked Screen
As far as I know, these Samsungs are junk and you will fry Y or X, or both, powering it up with the panel disconnected. If the panel is shorted, you could fry them both if it is connected.
Lose, lose. Cut your losses while you can.Comment
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Re: Bad Panel/Cracked Screen
thanks guys. I got lucky and found this model tv for sale on kijiji for $200, so I bought it and it works. I will use this as a test jig.
Also, I heard that there is a dummy load that can be built to test the boards, like they do at the factory. Does anyone use this or just a TV?Comment
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Re: Bad Panel/Cracked Screen
What dummy load ? Who ever said that to test sustain boards is BS'ing. The boards still output a sustain voltage with or with out the panel connected and if they are damaged will likly blow up anway and you wont get the Sus voltages.Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Re: Bad Panel/Cracked Screen
LolPlease Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Re: Bad Panel/Cracked Screen
Not entirely false. You could attach a 100W bulb to the sustain output to load it. However, the plasma panel isn't anything like a bulb, as it is highly capacitive but has low inductance (whereas a bulb has very little capacitance but quite a lot of inductance)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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Hi All,
We've got a HP Envy 12th gen that has been dropped and the LCD panel itself has cracked. The glass is fine just the panel itself is cracked. We ordered a replacement screen assembly using the part number off the HP part surfer website.
Upon installation the touch screen now does not work either in UEFI or win 11. Device manager under the "intel Precise touch and Stylus) menu notes "This device cannot start (code 10) Status_Device_Power_Failure".
I've tried all the usual troubleshooting steps like reinstalling the driver, uninstalling... -
So the one guy said the panel short potentially could be fixed so, here's a TV. TV reboots continuously. Backlights work fine. I put some tape on the top ribbon and the TV was able to turn on and get picture. I attached a pic of which lines I taped as well as some other pics of the buffer boards. Appears the "short" is on the right side buffer board. There are no esd diodes that I see.
Anything can be done?03-29-2024, 12:04 PM -
Hello,
I have a MacBook Pro 15” A1398 2013 that has no backlight, but I see an image when putting light through the logo. I noticed that when the screen is plugged in, I get a 300 ohms short (see image).
When unplugged, the short is gone.
Any idea? -
Hello everyone, I’ve just been given a Samsung UE55JU6800K smart tv as it had white spots on the screen due to the led lenses falling off. After refitting them & putting the tv back together I thought it was a nice easy fix for a free bedroom tv , then I tried it before screwing the back into place. I realised that the right side of the screen was darker than the other side, I removed the screen again as I thought the backlights had failed but they are fine.
I put the screen back in place & turned it back on . The screen seemed to be ok again but different screens on the same... -
hi i have philips led tv i had vertical lines all over the screen so i was testing voltages on board connected directly to screen below t-con
i accidently shorted two caps just above flat cables going to screen 20v and 2v and the 2/3 of the left side of the screen has gone white but vertical lines are still there i still have all the voltages on caps nothing is shorted so im just wondering is it posible i damaged the screen (burned pixels) when i shorted caps ot its posible the t-con board got damaged, thank you
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