Hello!

My Sony Bravia XBR-65X930D has stop working: The display doesn't turn on anymore. Initially, the stanby light would flash 7-8 times red before turning off. I managed to perform a factory reset (Power + Vol -). Now, when I turn it on, the white standby light stays on (solid white) for 12 seconds before turning off. During that time, I (sometime) get some audio, but not always.

Here's what I did: - Disconnected all devices from all ports. - Another factory reset (no change) - I have plugged the power bar and checked the voltage on different board connectors with a multimeter. - The powerbar works because I do obtain 24V on the DPS board. - The optical port red light lights up during that time as well (12 seconds) before turning off.

Any recommendations on what I could test next to troubleshoot and identify the faulty board (Motherboard, DPS or other)?

Thank you,

Hi everyone,
I have a Samsung UE55KU6100W TV. When I turn it on, the screen suddenly becomes very dim and stays that way.
Does anyone know what might be causing this? Is it something that can be repaired, or is the TV not worth fixing?
Any advice would be appreciated. Thanks!

A few more details:
The screen dims almost immediately after turning the TV on.
The screen stays dim instead of turning completely black.
Could this be a faulty LED backlight, power supply board, or something else?

Samsung smart TV UE49NU7100 has a software problem. A factory reset didn't fix it.

1. The "About This TV" window (model code, serial number, Open Source Licence, QR Code, Close) pops up by itself and,

A voice reads the window text aloud,

4-digit PIN notifications appear in the top right corner,

These appears once the remote is in use.

With no remote batteries, this info window didn't show up.

1. "Not available" appears on screen. With the remote's batteries out, selecting Source with the TV's own button also gives "Not available", even after unplugging the TV and plugging it back in.

I tested with no network connection and nothing plugged into HDMI or USB. Software version is latest.

Has anyone fixed this, or know about this?

Hi,

So I've been struggling with this for a few days and I cannot seem to pinpoint the problem, mostly because I am a beginner in DIY electronics and repair. I'm wondering if someone could steer me along the right path to find the problem and/or give some tips about testing the connections on the boards.

• TV is plugged in and switched on.
• Power button burns red.
• Neither the buttons on the side (including the power button) or the remote turns on the TV.
• Holding the power button does nothing.
• There is no backlight and the logo does not show up.
• The screen stays completely black.

I've been looking around on how to test the connections and components so I can figure out which board and maybe even which component to replace. Unfortunately I'm having trouble figuring out the manuals and schematics. For example I've read to test the ST-BY 5V connection from the power board to the main board, but besides seeing the wires I have little to no clue.

This is the TV and the boards:

• TV: LG 42SL9000.AEU (42SL9000ZAAEUVLJG)
• Power board: EAY58470001
• Main board: LD91L EAX61293601 090807
• LED driver: KLS-420ELD 6917L-0020A

I got this TV from a colleague broken, and I don't need to buy a new one. I'm just interested in fixing it and learning from it. So if you have any sage advice to share I'll be glad to listen!

I'm planning on replacing this set as it's very old and I don't want to spend any money on it or a lot of personal time trying to fix it. This is not my main TV. I'm planning on taking a look at the internals before throwing it away and maybe trying the T-Con tape fix.

What happens is that any source will show a strange box like image. In the video above, it's showing complete static from the OTA antenna source. When a streaming or IPTV box is the source, you can actually see the image slightly, but it's still corrupted with static lines.

Before, the TV could be turned on and off and at random times the TV would reset to normal and show the full video, but that "trick" no longer works.

Finally, pressing the menu brings up nothing.

My suspicion is a failing T-con board or main board vs the panel itself.

I have a VIZIO 55-inch Mini LED Quantum TV with a white glow in a couple of spots along the top edge. It’s mainly noticeable during dark scenes or in the black bars when watching movies.

I’ve attached photos showing what I mean. There are some room reflections in the photos, but those top-edge patches are visible in person too.

I’ve already contacted Vizio customer service and sent them the pictures. They’re calling it “screen separation” and are considering a refund.

In contrast to the service rep, to me, it looks more like backlight bleed than separation, although I’m not sure. Since this is a Mini LED TV, I expected that to be a less common issue.

If Vizio approves the refund, my understanding is that they’ll have me dispose of the TV rather than return it. Before throwing it away, I’d like to see whether I can fix it. I haven’t opened it or attempted any physical repairs while the refund is still being considered.

Since it would otherwise be junked, I'm open to suggestions. Is there a realistic DIY fix? I’m wondering whether the issue could be caused by that portion of the screen being pressed in too far or whether it needs less pressure to allow it to move outward. Should I try gently pushing it in, or would using something like a credit card to pull it outward make more sense? I cannot find any documentation online about opening it up and fiddling around.

Afternoon Everyone,

(Hopefully links are allowed in posts, as I wanted to be as descriptive as possible)

I have an old Vizion V555-G1 (LCTWYINV Series) 55" TV that I bought a few years ago. About a week ago, the TV was turned on and a bunch of vertical lines appeared, along with an array of colors before the screen turned black. Audio was still working and the screen was still "on," just not showing any visual.

I went through and checked a few things online, followed some niche repair videos I found, and ended up checked for loose connectors, ribbon cables, and voltages on some of the key video points on the TCON board. I found that some of the voltages weren't correct (in comparison to the YT videos I was watching), so I ordered a new board which arrived today.

I installed the new board, turned it on and was greeted with the same "screen is visually on, but there is no picture" issue. I went back to the TCON board and unplugged the left ribbon cable (cable connecting TCON to the bottom video boards on the TV), and saw no change. Replugged the Left Ribbon Cable in and did the same with the right. When I unplugged the Right Ribbon Cable from the TCON board, I got some visual feedback, which can be seen here. This was at least progress, as the side associated with the unplugged cable was white, and the other side was actually showing the same form of lines from when the TV died a week ago.

So while I know the true answer to this is "just buy a new tv dummy," I feel like I am at least close to figuring out what the issue here is, and I would like to do so before I just scrap the TV(i am very stubborn). So if anyone has any advice or possible next steps, they would be greatly appreciated.

I am happy to answer any questions I can or provide any additional information as requested.

Tv is lG 55UH7F and the screen is turned black about 3/4 vertically, 2nd image is another board from same model tv which has 1/4 portion turned black,

I swapped the boards but the same pins got hot really Quickly , any way to fix this ? Is it the back light causing this ?

My parents haven't used this Panasonic TH-43D410K TV for years because it won't turn on. Whenever they try to turn it on, the indicator light turns green briefly before changing to red and blinking continuously.

I want to try repairing the TV myself rather than replacing it, but I'm not sure what is causing the problem. Could anyone help me identify the components inside the TV that are most likely faulty and might need to be replaced?

Can this be fixed It randomly started happening haven't had this issue before a neighbor moved in had the tv for about 4-5 months bought off someone

Is there anything that can be done about these spots to make them go away?

Bought a brand new S90H 65inch tv from Croma day before. Got it delivered last night.

In excitement, I Unboxed it and set it up myself. The moment I switched it on with the remote, I could only hear the startup music … no video/picture.

Followed all troubleshooting steps but no luck. I’m shit scared now, is the TV kaput? Should I have waited for the technician to install it?

Red leds seem to be failing on the right side of the screen. Is it time for a new tv?

Samsung QLED 55" Q75T from 2020

Hi All-

I have an OLED 65C9 that has audio distortion on the following inputs.

All HDMI

Analog IN

RF In

Seems to be less distortion with I/P stream via WIFI on any streaming service.

Seems to be the worst from OTA broadcast.

I have the two speakers out and test each speaker on the right speaker amp. Both speakers sound the same (sonically). Did same comparison with both speaker on the left side, they sound equally as good. Though, distortion most prevalent on broadcast.

I need a manual so I could test power supply to main board. Or do any of you know of common issues with bad caps on power supply with these particular make and model OLEDS?

If I replace main board, can I do a service alignment with just my smart remote, or do I need to have

factory "Repair Remote" and service manual? I have meters and scopes to look at waveforms but I'm only guessing without a service manual and schematics.

Any help in the above is truly appreciated in advance. Thanks

We were watching TV at my friend’s house and a few minutes into our show the tv faded to black from the top to bottom like if a curtain was falling and now the screen is just black. The audio was there for a bit but now it’s not there. We have power cycled a few times and verified the cord is not faulty.

Hi,

Can someone please watch the video and tell me what’s going on with my LG TV? It’s switching back and forth like it’s stuck between two color modes and it’s got that weird shaded area towards the top. It switches like this every second or so and there’s nothing I can do.

I tried unplugging it for 5 minutes and holding down the power button, but that didn’t do anything.

And it’s not an HDMI issue. It affects the TV menu and every input.

I can’t find anything about this anywhere. Can someone help?

My Samsung Frame TV 65" model QE65LS03DAUXXU, suddenly developed this fault which is most visible when the screen is white but always visible even when different colours and brightness levels are displayed. There is also a corresponding slightly dark area running top to bottom too but that is a little harder to see.

The tv is wall mounted where it is above a foot deep unit, so it would not be easily knocked in its current position, the screen exterior is unmarked and the bezel is undamaged, this appears to be inside the screen but behind the coloured pixel layer, if that is possible.

I'm in the U.K. and the screen was purchased for £1350 around 18 months ago, I called Samsung who ran video diagnostics where they confirmed they could see the fault however they informed me that this screen only has a 12 month warranty (I know I should have known better!!), they may replace or refund but they want to charge £179 to send out their engineer to confirm the fault, if its confirmed as a manufacturing fault then they will refund 80% value under the UK Consumer rights act, if not i'll be down £179

So I suppose i'm asking if this look like a manufacturing fault to you more informed redditors, despite it taking 18 months to show up and also if its worth me pursuing this matter as an out of warranty consumer rights claim.

I'd appreciate any advice or discussion.

Samsung 85-Inch Class QLED 4K Q60D Series. A thin black line appeared a few days ago. Yesterday it became a very thick black line. I tried a Hard Power Reset. The thick line reverted back to a thin line. Then, this morning, the line had completely vanished and the screen is back to normal! I'm wondering if my unit is toast. I passed the 1 year warranty in July. Reseating or replacing the internal T-Con could be an option or maybe the TV had a miracle and fixed itself.

I’m working on a Toshiba 15DLV77 LCD TV/DVD combo as a hardware restoration project. I’ve already investigated the mainboard and identified several of its components, but I’ve hit a wall trying to find the original mainboard firmware.
I’m hoping someone here might have experience with this model or similar older Toshiba televisions.
I’m looking for help with two things:

1. Finding the firmware
Does anyone have a firmware dump for the Toshiba 15DLV77’s main digital board, know where one might be available, or have documentation that could help me recover it?
I’m specifically interested in the mainboard firmware, not the separate DVD player’s firmware.

2. Reading the NAND without removing it
Is there a way to dump the NAND flash while it’s still soldered to the mainboard? I’d like to avoid desoldering it because I’m concerned about damaging the chip or lifting the PCB pads.
Could the NAND potentially be read using an appropriate programmer connected in-circuit, or is there a documented debug/programming interface that could help?
I’d be willing to buy an identical donor board if absolutely necessary, but replacement boards are expensive, so I’d like to exhaust the non-destructive options first.
If anyone has worked on this model, has a firmware dump, or knows a reliable way to read its NAND without removing it, I’d really appreciate the advice.
I can provide photographs of the board and chip markings, along with the service documentation and details of what I’ve already investigated.

Title says it all, curious if anyone has found this repairable. I can see the pricture by shining a light at the screen so it's not the controller/cpu board. Research shows that it's likely the LED array having a failed LED.

I have a Hisense 65U7SG on the way to replace it, but hate the idea of it winding up in a landfill.

Whats this?

Bought a new hisense tv 2 weeks. Mini LED. This has popped up. Dead pixels? I thought my screen was dirty but wasnt. Tried turning it on and off as well. 55U6Q-PRO

This happened when I moved the tv and mounted it on the wall. What could be going on here?

LG OLED65C1PUB — vertical colored lines, shuts off after seconds, repeated OFF_BY_BDP_ERROR7. Is it worth trying a PSU replacement?
I’m trying to diagnose my LG 65-inch C1 OLED before spending around $200 on an eBay repair kit. I’d appreciate advice from anyone familiar with LG OLED hardware and service-menu diagnostics.
TV information
Brand/model: LG OLED65C1PUB
Model year: 2021 LG C1 OLED
Power-supply PCB marking: EAX69569703 (1.0)
Board version: 1.3, according to the board information

The TV initially had a few vertical colored lines/stripes on the display which can be slightly seen from the photo.
I moved the TV horizontally and cleaned the screen with a dry microfiber cloth.
It already had a history turning off after only a few seconds. It briefly displays the main UI, then clicks off. I don’t know if the move/clean made it worse.
The red standby light is off while the TV is on and returns to steady red after it shuts down. I can turn the TV back on with the remote. No logo display when it shuts down automatically
The vertical lines are still visible when the TV turns on.
I measured the 12V output while the TV was running. It read approximately 12V, then dropped to 0V when the TV clicked off.
Service-menu shutdown history
I accessed the Power On/Off Status history. The entries appeared in this order, with the newest event at the top and this one seems to repeat after the shut down:

OFF_BY_BDP_ERROR7

What I’ve considered so far
I’m considering buying a roughly $200 eBay repair kit containing replacement boards, but I don’t want to spend that money if the OLED panel itself is causing the shutdown.
I’ve read conflicting information about whether OFF_BY_BDP_ERROR7 indicates an OLED-module/panel problem or whether a faulty power supply or main board can trigger the same code. I understand the 12V output dropping to zero doesn’t by itself prove the PSU is bad.

Thanks for any help!

I found this tv on the side of the Road and this is happening.

So I recently bought a new TV (TCL, Brazilian model 50P7L) and noticed that, against certain bright backgrounds and from a normal viewing distance, there were some diagonal lines that appeared. They sort of look like shadows. They are very feint, and I can't see them up close. I was wondering if a) I am just seeing things, b) if they are really there, what are they? and c) should I be concerned?