Hey all, I have a Z50PJ240 tv with the 50t1 boards in it. I have been having pixel storm issues with it on certain screens. Cartoons and sports are fine but any dark scenes show pixels all around the edges. I had a ghosting problem along with the pixel storm and at the awesome advise of members of this forum I replaced the Z-sus board and the problem went away. I have checked all the voltages and the solder joints around the coils and everything looks good and is within spec. I have checked all the transistors and they all seem good. I am debating on replacing the Y-sus board but thought I would give a shout out for any other advice first. Any help is appreciated. Thanks!
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Re: Zenith Z50PJ240 Pixel Storm
Photos would be handy, The ysus can open cct some low ohm high wattage resistors which present black splotches, but you may be talking of maldischarge.
Can't help here because I've got same model which had bad resistors , fixed that now has maldischarge issues which I've not been able to pin down. I'm sure replacing the boards would fix, not economic for me though. -
Re: Zenith Z50PJ240 Pixel Storm
here are the pics. The ghosting was solved by replacing the Z-sus board. The pixel storm with blue green pink pixels is the issue I am having now.
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Re: Zenith Z50PJ240 Pixel Storm
Interested in Images of the screen defects, good images of the 2 boards, last is 2.6 kb so no use.Comment
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Re: Zenith Z50PJ240 Pixel Storm
Here are a couple of screen pics for the pixel storm.Attached FilesComment
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Re: Zenith Z50PJ240 Pixel Storm
Must be a fairly common issue, that's where I'm at with mine. I'd expect it'll be the ysus but no idea whjat component is doing, bad cap ? WHo knows. it's only a HD TV so I have not invested any more money in it for the time beingComment
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Re: Zenith Z50PJ240 Pixel Storm
I don't mind spending another 100.00 on the tv. I would just like to be more certain that the Ysus is the problem. Hopefully, someone else can chime in and offer a direction to diagnose the issue.Comment
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Re: Zenith Z50PJ240 Pixel Storm
Bump one last time.....Comment
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Re: Zenith Z50PJ240 Pixel Storm
Ok, I replaced the ysus board and the picture looks great. No more pixel storm. I am double checking all the voltages and found something weird. When I test DC voltage across the + and - TP for the -vy I get a positive reading. The voltage is correct at 198 but it is showing a positive 198 not a negative. Any thoughts?Comment
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Re: Zenith Z50PJ240 Pixel Storm
I thought about the probes but double checked it several times. if it was +198 would it even function correctly?Comment
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Turned on my lovely plasma and after about 30 seconds the screen below showed up. None of the inputs are responsive, just the red light flashes when I push it. Remote doesn't work either. To turn it off I need to unplug it and when I plug it in again it turns back on to this screen.
I only found one reference to this issue with a different model but it didn't look super reliable. Only mentioned a 'main board fault'. The main board for this one is on ebay for $34 so might need to go with that.
Anyone seen this before?
Thinking about it some more, it happened...05-19-2023, 01:01 PM -
Hi,
I'm trying to resurrect a LG OLED C1 TV that has some panel banding. I used the TCON error bypass to get a picture. I was able to update the firmware as well. But when I performed a pixel cleaning to try to get the banding out, it made the image significantly worse. I tried to undo the effects of the pixel cleaning by performing a factory reset and IN_Stop, but that didn't work. Any way to reset pixel cleaning data?... -
Got it for free on marketplace because it stopped working after a storm.
When I began troubleshooting the power supply, I fried 2 fuses and a mosfet by shorting 2 pins on accident, but I've replaced those components.
The tv had a soundbar connected, which was also killed by the storm. On the tv side I found a transistor shorted on the hdmi 2 (arc) and a lot of capacitors shorted on the main board.
Disconnecting and reconnecting the psu to main board cable, while still being connected to 120 V AC, would wake things up, such as a red light from the optical... -
Heya! I have a Google pixel 6 with some important data on it, and since it's the new Google SOC I'm not really sure if it's possible to solder the storage to a new board.
If anyone has or knows how to get a Boardview of the pixel 6 (not pro) that would help me immensely.
Best regards, Alexander Dorn.05-04-2024, 05:19 AM -
I have a TCL Roku 55S403TCAA. It quit working after a storm. Other electronics quit working as well so I am pretty sure the storm had something to do with it. Anyway, I took a look at it, no obvious damage, blown components, scorch marks, etc. I am looking at the power board first, 40-L141H4-PWG1CG. I've repaired bad caps and blown components but nothing more extensive beyond that. I am trying to troubleshoot it, but I can't even find the fuse on this board. There are markings on the PCB saying "replace fuse as marking" however. I attached a photo of the board. I am also testing the...
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