Fixing Sony XBR-65X900E XBR-55X900E XBR-49X900E shutting off with 4 blinks - A2166063a mod
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- Опубликовано: 6 дек 2022
- A hint for a quick temporary patch to a problem caused by an over-sensitive LED controller causing the TV to shut down when it can still actually run.
Ultimately LEDs that start to go bad will go bad and when they do the burn may also cause additional and worse damage, namely burning the light distribution plot behind the LCD.
So cutting off protection does have its risks.
On the other hand most other TVs do not have such a protection or it is not nearly as sensitive.
Bottom line: use at your own risk!
Want more? Go www.coppelltvrepair.com ! 
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Thank you very much for this video! With this workaround, you've help me get a little additional use out of an otherwise 95% perfect TV. The "save for later" parking of the resistor and the short jumper on the back side of the PCB are genius-level mods.
Where do you solder the 3rd spot on the back of the board to? It’s not too clear in the video..
Your solution worked perfectly. I didn’t have the capability of completing this task, but I found a local tv repairman, and had him do it. Took him 15min and he only charged $20. He thanked me for your video also.
Put the board back in, worked. Saved a $1000.
It's a really cool hack. Thank you. Unfortunately this did not work for my XBR-55x900e with 4 blinks. Followed it very closely. If anything, my soldering skill slightly improved.
Worked great. I can tell that my tv is a little dimmer in the upper right but I can definitely live with it. Thanks for the video.
This worked for me. XBR-55900E. Did the same exact thing to the board so that it could be returned to original if needed. I originally tried a software reset by unplugging for two minutes then plugging back in while holding the power and volume down. Did this five times but no luck so assumed hardware issue. Not sure how much more life is in this thing but for now it’s working, saves it from the trash heap. Thanks so much for sharing.
You saved my tv! Tks a lot from Italy!!!
Thank you for this information. It worked for me.
Happy to be of help!
It works! Thanks for the fix 🙂
As they say in Bulgaria..."never mind, $5 will take care of it..." :-)
Thanks sir
This video is helping to me we have a same fault 4time blinking but model and also inverter bord different I have model 65x9500g led but pin is same point we dun it and my led is ok❤❤❤❤❤❤
Thank you. Good working
At 2:14, when you say "cut this track" where exactly are you pointing at? Do you mean the track before the circle ground? or do you mean the track between the solid circle and the smaller circle with the hole in it? or does it even matter. Thank you
Where do I actually solder third point on the back of the board to? It’s hard to tell. I thought you said ground so I soldered a jumper wire to the point and then to a large gold rectangle area to the far left corner. It didn’t work then. Should it have?
I don’t have a heat gun so I just cut the trace on the front side and verified with multimeter no current now goes from 3rd spot to the 4th pin on the chip.
I have to apologize, but I just don't have the resources to watch the video and see what was done. Others appear to have figured it out so it should be in the video.
What about the grounding of BL_ERR (backlight error) fix as shown to work with Sony LED TVs on other sites?
What about it? And do you really expect me to be up to date with "other sites"? You'd see us commenting there probably if we were involved with them in any way.
I have a 55x990e with 4 red lights. I just tried this with no luck. That being said , do you think the problem could still be the backlights if this didn't work? My understanding is if you get 4 red lights, it could either be the led backlight strips, the backlight inverter board, or possibly the main board. Im just trying to see if by this not working is a clue in and of itself. ???
As I hope I explain in the video the issue here is that the LED driver is perhaps a bit too sensitive and triggers from a problem in the LED strips that is not actually fatal. That said, it still IS a problem and practically certain to progress to a bigger, usually permanent problem as most LED strips eventually do.
With that in mind my first suspicion would be the strips. The hack here is just a temporary workaround that is by no means applicable for all cases.
Would replacing the entire board make the TV run fine or will it still be at risk of a larger LED failure?
The board in this scenario is not faulty. It does what it is supposed to do, it's just overly sensitive...arguably...since it detects a problem that is not fatal and stops functionality whereas it can actually still be provided. Make no mistake, though, the LEDs will eventually fail and then it won't matter if this is the same board or a new one. The one benefit from such early failure catch is that if the LED strips get replaced before they actually fail and burn this may avoid the potentially burning leds to also damage the acrylic light transfer panel that sits on top of them (for edge-lit panels)...and that is a major benefit if repair is being considered at all.
@@coppelltvrepair Ah that makes sense, thank you!
I replaced this and still have 4 blinking red lights. It started happening right after a power outage
Well you tried the easy solution, now is time to turn to a pro. Not us, a local pro who can touch and test.
Nice
if I ground out the pin on the back of the board like what you did. is it still necessary for me to remove the resistor on the front of the board ? or i can skip that step ?
Theoretically it might still work. But it is a bad practice and risk and I haven't tried.
@@coppelltvrepair technically if I find the that same pin on the Mainboard side I can short it out there as well ? but I assume doing it on the LED driver board is better and cheaper if anything goes wrong as suppose to screwing up the Mainboard..
@@grilledchickenwrap Why would you mess with the main board when there is a simple way to address it on the LED driver that does not alter its structure (merely moves a component in a way that can always be restored later) and utilizes a simple jumper you can again always remove later if you don't want to.
There are probably tens of alternatives that would work. Why would you focus on any of them if this is something that is fairly simple, easy to undo and works?
@@coppelltvrepair true.!
@@coppelltvrepair BTW I have a 65x950G model has similar LCD driver board but not exactly same am i still looking for pin 4 or do you think it is a different pin for this board ?
Mình đã làm theo chạy đc 1 tuần bị lỗi tháo ra thay led OK
ahh... I have a xbr65x950G with similar issue I am guessing, it will power up like nothing is wrong you can see backlights and you can see the setup screen but few seconds later tv will shutdown iwth 4 red blinking lights. I tried to ground out the BL_ERR on the power supply side but that did not do anything. I am guessing for my model I have to ground out the error code at the LD driver board side which it sending signal to the mainboard to shutoff. will try this out. Thanks.
Did you have any luck with this? My 950G just started this, I was considering buying a new power supply board.
@@jlp8648 yes I did exactly what he did and solder the board with a jumper and it’s working now.
@@grilledchickenwrap Do you happen to remember which resistor it was on our particular tv? I believe I see a similar setup along IC1006 but no way of just "moving" the resistor, which holy crap it's small. I'm an idiot and bought a new power supply board, of course it didn't work. Grounding BL_ERR didn't work either.
@@grilledchickenwrap I have the same model, I found it, surprisedly it was the same pin. but make sure you double check it. I got the tv working. the LD will still flash red 3 times. but the tv will work. after got the tv working I use RUclips to have the screen white and then you can see if your LED has problem. and it does. I can see a small dark spot so probably 1 or 2 LED is burnt
this is a great test to make sure that if there is any issue with the boards or it is actually the LED strip
Tried this, ive tried swapping all the boards. Tried all the tips and still have 4 blinking red lights.
So you have a permanently failed LED strip I guess.
@@coppelltvrepair thanks for the response. I do have a full set of led strips I was hoping to not have to get into it...but you've now given me hope.
This just happened today, 12-1-23. Question: Where can I purchase new LED strips & their location on tv? I'd like to attempt a complete fix. I'm a fixer and find it challenging to always do my own repairs. I love my XBR49X900E.
Thank you very much!!!
You can google for "Sony XBR-49X900E LED strips" and explore the first few results. One good place to go for low cost quality strips is eBay. Look for a buyer with steady volume, particularly sales of this specific item, high available quantity (usually good indication that they are indeed new), explicit statement the strips are new (can't trust it, but would be silly to buy ones that are clearly disclosed as used), >95% positive feedback with negatives mostly ill phrased and random in nature as opposed to all stating seller is unresponsive or selling old stuff advertised as new...such things....buying from China is quite all right, after all this is the single biggest LED manufacturer in the world