hi can any one help could you tell me is this a T-CON board fault or a panel fault
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Re: Panasonic TX-L55ET60B
disconnect, one at a time, the cables going from the tcon to the panel and see if it changes what happens to the display and go from there. -
Re: Panasonic TX-L55ET60B
Panel faultPlease 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: Panasonic TX-L55ET60B
so is there nothing can be done to repair the panelComment
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Re: Panasonic TX-L55ET60B
do the suggested test and go from thereComment
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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: Panasonic TX-L55ET60B
thanks for the help this is the result of the testAttached FilesComment
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Re: Panasonic TX-L55ET60B
This would appear to confirm a bad panel.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: Panasonic TX-L55ET60B
thank so there is no fix at all has you see ribbon faults or loseComment
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Re: Panasonic TX-L55ET60B
on u tube it shows packing ribbons on panel with rubber and re fitting is this just a load of rubbishComment
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Re: Panasonic TX-L55ET60B
that method works where there is a bonded tab problem and pressing on a troubled tab can change the result. Your problem is probably worse than that. Further, the second picture that you posted is rather unusual as it shows a white half that has "wave" on the side. That looks like someone disassembled the set to fix an issue with backlighting and then during re-assembly, didn't put the diffusing material back properly. IF this is true, then based on how well (NOT) this panel was handled, it is unlikely that it can be saved.Comment
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Re: Panasonic TX-L55ET60B
thanks for the fast reply got the tv from a site they said it was t-con board so just wanted to make sure before I ordered a board and wasted more moneyComment
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Just bought this for 10 bucks yesterday hoping to fix it. The guy said water dropped inside from a dehumidifier hose and it started showing black and white vertical bars then went blank. When I got it home and turned it on it came on fine and displayed correctly but I was noticing faint vertical bars in the image. After a little bit I turned it off and back on and it was a black screen again. I opened it up to check for water damage and corrosion but didn't find anything of the sort. I cleaned the ribbons anyway and reconnected them but still got a blank screen. If I disconnect the right side... -
This thread is about trying to get an Universal Main Board to work with a Sharp TCON and panel.
I have a Sharp LC-46D85UN TV that has had a main board issue. Since this model is from 2009, I am not able to find an exact replacement of the main board. Instead, I decided to see if I can future proof this tv by getting a Universal Main Board (T53U21.2) from China to work with the Sharp TCON (CPWBX4291TPZA) and panel. The universal main board supports a 8 bit dual channel LVDS interface whereas the TCON requires a 10 bit dual channel LVDS input. I have modded the LVDS connector to match... -
My goal here is to be able to use boards on hand to swap into faulty sets when the faulty board is not obvious.
I will start by asking what is the format of the output from the mainboard and is it generic in any way or does it vary by manufacturer and/or model ?
And as far as I know a tcon and panel must be a matching pair because the timing of the signals and the voltages required to drive the panel are specific to the panel itself. (That may be a blanket statement that isn't true in some cases where the panel creates its own sub-voltages on its panel boards?)...01-06-2024, 01:32 PM -
TV came on with BL on but blank screen. Disconnected one of the ribbon cables from tcon to panel driver board and now I have half of the screen working normally. Any way to tell if the problem is with the tcon or the panel driver board or the panel itself? Should I just replace the tcon and see what happens? -
Hello everyone. 😀
As per thread title, this unit has a serious SMPSU fault. It blows F1001, which is a 10A M205 in the phase from the mains input.
Very first thing I tried, was simply replacing the fuse, but the replacement ceramic fuse blew immediately.
Looking at the schematic for this PSU, I then removed what I thought was the next likely candidate: D1001 - the HV main bridge rectifier.
This isolated the fault(no longer blows the main fuse), but does not point me to the actual fault.
There are no devices that have exploded or otherwise show signs...
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