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Re: Sanyo DP26746 LCD TV-sound,no picture,lamps are on.
.335
L
I put a new one in its place. One from NTE. 89 cents only.
There are several smd diodes on the foil side of this board at and near the ICs tested. All but one test L and .5XX-.6XX. One tests .524 & 1.89 (D1692 red arrow picture). On the component side of the board there are more and they all test out .5xx & L.
http://www.datasheetarchive.com/1SS3...datasheet.html
I guess I should pull that smd and check it off board? Looking this weekend for some junk board to practice on removing and soldering smds. Looks kinda ez on youtube.
I read these can be tested on board but I can't find anything about if there is a short will it cause the later smd diode to give that kind of a reading, as in current going around it?, or if that diode is the bad shorted component. I'm guessing/hoping the later.Attached FilesComment
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Re: Sanyo DP26746 LCD TV-sound,no picture,lamps are on.
looking at front panel screen is it just "white" background with no video when turn on?Ron Driver,BSEE,CET,ISCET,NESDAComment
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Re: Sanyo DP26746 LCD TV-sound,no picture,lamps are on.
I never seen a multimeter just display "L" for out of range. The most common is "0L" and if you have a radioshack model, it might be "0F". Getting these things correct is important because we cannot see what you are reading.
D1692 is good. Depending on your multimeter, some of them don't display "0L" until the voltage is > 2V or 3V. 1.89 is "close enough" to 0L.--- begin sig file ---
If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.
We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.
Please do not post inline and offsite as they slow down the loading of pages.
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Re: Sanyo DP26746 LCD TV-sound,no picture,lamps are on.
i have the same issue with this same exact tv. i dont have any idea what the voltages are suppose to be from the power board. any ideas. i pulled those 2 820uF capacitors because mine were also a little bulged and they are about 50uF - 100uF too low. not sure if that's a big deal though. also i have checked all of the diodes and they seem to be ok.Comment
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Re: Sanyo DP26746 LCD TV-sound,no picture,lamps are on.
So everyone knows, I found the manual : Sanyo_DP26746
I have half of my screen looks white with horizontal lines and the other is completely dark black. I'm going to be working on it today. -M.C.Comment
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Hello all ~
Hope this finds you well. This LG 82UN8570AUD (April 2021 model) 4K UHD television has full audio capabilities but video is compromised / problematic.
When I picked up this large LG tv it had a full black screen upon startup. Previous owner said it just went black one day. No popping sound or anything else of note.
I got the display to work by taping off several traces of the right-hand side ribbon cable on the TCON that leads from TCON to PANEL. However, despite dozens and dozens of attempts to find the right combination / range of traces taped... -
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... -
Hi There,
This TV was auto switching off after few seconds with some vertical lines on the screen, so got a new TCON board and replaced it.
After replacing the TCON board it was working fine and i set it up with everything, used for few hours, then had the bright idea to update the software on it. During the update process, TV switched off and now no audio or video. No relay switch sound.
More Details
TV Model - LG OLED77G1PUA
Got the same exact TCON board from TVPartsToday and replaced it. But didnt transfer the EPPROM data (didnt... -
Good day, I have a TCL TV: Model 43s423. After turning ON the TV, the ROKU TV logo appears with fine lines over the whole screen, then after a while there are vertical bands in the middle of the screen top to bottom and the TV tries to update its firmware but I do not have the remote to connect it to my new network connection. Also the Power ON light blinks 2 times in quick succession. When I remove the ribbon on the right of the tcon board the left side of the screen shows but with fine lines. If I remove the left side ribbon and connect the right side ribbon the whole screen is blank with...
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