As the title says, I'm looking for info regarding the Panasonic TCP50S1 and TCP50U1. I have two of the S1's and one of the U1's on the bench right now. One of the S1's had a blown SC and SS but a good panel. The other had a broken screen and a missing SC. The U1 had a broken screen and a dud mainboard. The only difference that I can see between the two main boards is the S1 has two fans driven off the main that the U1 doesn't have. The S1's main works with the U1's other internals. I'd like to sell the buffers from the S1's if they're good but I haven't been able to find a test procedure. They both use the same panel but different SCs, SDs, SUs, and SSs. What's gonna happen if I connect the SU and SD from the S1 to the SC from the U1?
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Last edited by johnboy1313; 03-25-2017, 04:34 PM. -
Re: TC-P50S1 vs P50U1 same panel different internals.
Test the buffer boards by removing the 4 screws that hold them to the sc board and remove the 3 connections going to the sc(white?). Using a dmm on continuity or beep mode for a short circuit, put neg on one of the floating variable ground pads that you removed the 4 screws from. Lift up the ribbon latches and take pos probe and drag across all the connector pins. I wouldnt try different buffers on sc boards myself. -
Re: TC-P50S1 vs P50U1 same panel different internals.
If they're the same panel it's unlikely to be an issue. Think of this like a 5081 / 5105.
Cheaper models have cut down boards and buffers with no heat sinks. how you present this though for sale, that's the issue. Can't really say it's a S1, it'll be a mongrel but it will work. Plus all the mounts will be present too for fans etc.Comment
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Re: TC-P50S1 vs P50U1 same panel different internals.
I'm gonna sell the parts on eBay. I've already sold two of the PSU's. There isn't much to be made from a working 8 year old Plasma these days. I might get $150 if I hold out. Then I have to deal with all the asshats out there looking to get it for even less. I'd rather take my chances with eBay.Comment
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49UJ6500 LCD panel has a lighter band on top when first powered on. Goes away (or gets much fainter) after TV on for a few min. After powered off for awhile and power back on, same band appears. If powered on immediately after powering off, no or much fainter band. Running the latest firmware.
Disassembled the TV and lifted the LCD panel during testing. Band is on the LCD panel (can see the band on the panel as I lift it slightly) Backlight is perfectly even at the top edge. Double checked LCD panel alignment in the frame and is perfect but since band moved with the panel, its on... -
TV flashes backlight then reboots over and over. no image. Client said it used to have image for a bit before rebooting. Got worse over time.
tcon is built into mainboard.
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cost cutting measure that results in us having harder time to diagnose.
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used cut off tape method to mask 1 maybe 2 pins on the side of the cable that goes to that second panel board.... -
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When I took a look with the FLIR i noticed the 2 resistors...08-10-2024, 08:39 AM
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