Lg oled power board failure PART CATEGORIES Apr 19, 2021 · LG Electronics New Zealand has begun offering a free power board replacement service for selected OLED television models manufactured between 2016 and 2019. However, I always was going to call in on the warranty before it came to an end and the retailer has offered me £849 gift card How can I diagnose if the issue is with the main board vs the power supply board? Pressing the power button does not turn on the screen at all. These grades are a definition of panel uniformity etc. Years back I had a tv I loved poop out similarly. Looked at the power board but doesn't look like any of the capacitors were blown. If the power standby lamp is OFF, check the power cord. Nov 23, 2012 · Repair kit Now available on Ebay. this action can be due manually too via normal system menu. Jul 7, 2024 · You don’t have to question LG too closely to find out the company has been the planet’s leading OLED TV brand for a decade now, making some of the best 4K TVs around. Learn how to use, update, maintain and troubleshoot your LG devices and appliances. I called LG's support, and they were no help whatsoever on supporting a $3k tv, other than referring me to a 3rd party repair center. Check the panel for the smallest cracks. After a Windows update on my PC this monitor stopped working. As it sits outside the 1 year warranty I now have to pay over $800 to replace the "Power Supply". There are ways to test to see if the power supply is outputting the correct voltages or any voltage at all. Remove 7 phillips screws attaching power board to TV. Could’t wait, bought the 65” C1 from another vendor, which was also on sale and way cheaper. If that doesn't improve anything, I'd heavily lean towards some kind of board malfunction inside the TV. I've ordered another main board in the hopes that this one was defective. It is 100% a HARDWARE FAILURE. The service program involves the replacement of the power board to avoid the possibility of a Long story short, I ended up just buying the Power Board and T-Con board off eBay to hopefully fix this about 6 months ago or longer. It was no longer receiving any power. Has anyone else experienced this? Course my warranty ran out two months ago and LG does not seem very willing to help. If so, I will cancel. Everything inside the tv is modular. Apr 20, 2024 · LG Monitor - Troubleshooting No Power. if it listed mean the parameter will be adjust automatically. The fact that it will power on, but shuts itself off, seems to suggest a failed component causing an over-voltage or -current issue. I have seen previous scattered posts of similar claims across several websites but nobody has solved it. I think that's what test 1 from the LG guide is all about and then test 2 is added to see if power to t-con remains under a load (light bulb connected)? May 12, 2022 · Yesterday, the screen on my LG 65" C8 (purchased in november 2018) went dark, became unresponsive and flashed three blinking red lights on the power LED at the bottom of the screen. I've done all the trouble shooting I can - reset the TV. The full My LG OLED 65" C1 (2021 model?) just died. LG customer service over the phone was no help at all and actually very infuriating. The causes of it are: Voltage fluctuation This is for a C8, but the process is 99% the same. JSWolf. 6V) that connects to the T-Con board. l2649This video, produced by an So I have an LG 65G1 that has power (solid red light) when I press the power button the red light flashes once but no picture or sound. But just now while watching Netflix the screen went completely black and will not power on or off, not responding to control or physical power button. While your LG TV is running perfectly, the power outage creates sudden interruption and your LG Plasma TV blink codes. 3 boards, a main board, a T-con board, and a power supply board. Looking around, it seems like this could be a mainboard issue. They are innovative and they perform super well. As a result, the TV starts to alert you through blinking codes. The boards inside the TV are similar as well. 2016 to Sept. When I apply AC power to the TV, no click is heard. These are around £50 online. Oct 26, 2020 · LG Electronics Free OLED TV Power Board Replacement Service. If they cannot get you another C1, ask for a C2. Apparently the power supply has a problem (what he described sounds like weak capacitors), and that LG are doing a recall. As a result, I ordered another working T-con board, but the red blinking light issue was still there. Also for: Oled55/65c9aua. It is entirely possible your power supply went bad. Just wanted to share my situation after reading through various reddit posts on this issue. Personally I plan to use the TV until the problem significantly degrades day to day viewing. It's like you're hitting the on/off button over and over. One thing I've noticed in my testing is that when the power clicks on, it runs to the main board then a second later it runs to they T-Con. Joined Mar 17, 2021 LG Electronics offers free power-board replacement service on 18 TV models which were produced from Feb. Then the led power light goes out. They fixed it in 30 minutes lol, they were so prepared. This 3. Mar 17, 2021 · LG 65C7 OLED power board issue. 5V is routed through L2304 and on to the Microprocessor IC3000 pin 48 as its main power source. Given that everything was replaced but the power board, maybe it is the power board. That maybe seems trivial but it's around £100 a year possibly for every LG Oled. 5V going to the main board. The result of locking main board will be: you turn on, hear clicking relay - black screen - after 3 sec clicking relay again off. DUSQLJR, LG OLED65CXPUA including the main board, motherboard, power supply board, remote control, stand base, stand guide, stand screws, lcd/led display panel (screen replacement) and more. A power outage creates sudden pressure, and the TV’s internal parts could damage because of it. Oct 17, 2024. . Replacing the main board is as simple as unplugging the cables connected to it and unscrewing it. The issue persisted and seemed to have gotten worse in terms of Time to Failure. Aug 23, 2015 · Apparently mine is one of the models affected. JimmyGeeUK; Oct 13, 2024; LG TVs; Replies 6 Views 817. When something like burn in takes place or board failure on a Sony TV and it’s covered under warranty Sony doesn’t do what LG does and just replaces the screen, Sony replaces the entire tv. It doesn't bother me to be honest as I only notice it when watching football and even then it's not a massive issue. Try this Check the standby light. Went through LG's troubleshooting procedure but that didn't fix the issue. made sure no timers are onfirmware up to datechanged power source it is plugged intochanged HDMI cable (not sure what that would ho to help). Which TVs are affected, and is there a fire risk? Of the 60,000 TVs that need new power boards, LG has already Shop for Repair, Replacement Parts and Accessories for your LG Model Number OLED65CXPUA. Lg does not do that even with a 4 week old screen. Worse come to worse, order the ~$60 part and watch a YouTube tutorial on how to replace it. Why am I trying a new power board before mainboard? the positive take here is that Samsung is either replacing for free or refunding. Normally, people might have no picture but a backlight and sound, and swap out the t-con board, and everything's fine. If a new power board doesn't work, I will then try a new main board (which is the end that I think clicks just before the power board cuts off. Tech came and replaced a board. The first power on press is actually pulling power from the outlet, the second power on press allows the relay to kick over and the TV starts normally. Jun 25, 2018 · I have not looked through the service manual in much detail. I want to do the repair myself but I'm having trouble tracking down the right power board. I’ve repaired a few other tv’s but never worked with an oled before. Nov 22, 2024 · Hi all, I have a 3 1/2 year old LG 65CX6LA that the Power board has failed on. I hadn't seen any message, so this was news to me. Jun 15, 2016 · I would call LG and request (demand) a replacement TV. Even if this is a hardware issue unrelated to what was going on in my situation, I've found that on these LG OLEDs, sometimes removing power and letting it sit for a while can fix strange or intermittent issues. This subreddit is for the budget minded audiophile that wants to grow out of soundbars, boomboxes, mini systems, portable bluetooth, lifestyle speakers, and PC peripheral branded audio solutions. The Power Supply I removed and replaced. No success. One day I tried to power on the TV and you could just hear a click sound / no lines or anything on the display - just black. My LG OLED 55 inch C1 failed to turn on and no red standby light. 0. Sep 22, 2022 · How to Open LG OLED TV For Board Replacement or Power Supply Replacement Repair or FixMy friend had an HDMI port come off of this mainboard on his LG oled65c 15K subscribers in the ElectronicsRepair community. There's some screws to unscrew, and then you pop the panel off. He said the problem was either caused by a faulty main board or the panel. I tried waiting for LG to send a technician or even respond and they still havent. Sometimes comes back on within 15 minutes, sometimes hours or days later. If you don’t get lucky securing a repair I would try getting a power supply board on eBay/internet. If anyone else wants to chip in, please Depends I’d say. So I have a similar problem on an LG nano85una. com/itm/201550504198?ssPageName=STRK:MESELX:IT&_trksid=p3984. So I have a little over 2 year old CX 77 OLED, and I am running into an issue where the tv will turn on, stay on for around 20-30 seconds, then shut off. We have LG LCD TV and Plasma TV Power Supply Board and more for your LG | LCD | LED | OLED | QLED | HDTV | Curved | Smart | Flat Screen | Plasma | DLP | SUHD | 4K | 1080P | Computer Monitor | TV Products. Aug 21, 2022 · 2. I've spoken to LG who say it isn't covered by the 5 year warranty and they want over £500 to repair the part. My issue was that I had to press the power button on the remote several times before it would actually turn on. first failure I've had on any of my oleds oldest being an e6p from 2016 Replaced the circuit board on a "dead" TV and saved the TV from the trash pile. It is under warranty but has been with LG repairer twice and no fault found. To lock out main board you need to reset it by for example service remote from china. See teardown videos on YouTube, techgiant also uploaded a video of his main board being replaced I think of his LG CX. In power standby mode, the power standby lamp at the bottom of the TV lights up. The A80J is a fantastic TV you just took the gamble of not getting an extended warranty though Best Buy or buying it from Costco and getting the free 5 - LG EAY65689411 Power Supply Assembly (I removed this board, added part #EAY65689423, as LG's website states the previous board is no longer manufactured, and the newer part is comparable and can be used). 000. Same thing the power light just flashed 3 times then turned off. The red standby light would turn off for a second and then come back on. It involves opening up the TV, identifying the bad power supply board, removing it, adding a new power supply board, and re-assembling the TV. Nov 19, 2023 · I have successfully replaced the power board causing the power on issue, and installed a new main board. Two months old. Oct 31, 2021 · Re: LG OLED 55EG9100 TCON troubles With older models the NAND and Eeprom software must be taken from the old defective t-con and uploaded into the new t-con. Anyway he left and said that he would arrange to return with a new power supply board. In the process of carrying out a voluntary replacement service in South Korea where a TV power board issue was first reported, LG has continued to investigate the possibility. Oct 8, 2024 · If your LG TV will not turn on, it could be an issue with the power outlet, connected device, remote control , or the TV itself. Thread starter BlueRider; Start date Mar 17, 2021; Tags lg oled overheating B. A few days ago, the TV prompted us to a software update. View and Download LG OLED55/65C9PUA service manual online. I've run out of idea's and hope at this point. Jan 15, 2019 · TEST 4: (2015 EF Series OLED) Power Supply Board T-CON 12V and 24V Power TEST 4: 24V T-CON POWER LOAD CHECK: Leave all Jumpers in place on P2399 to P201 of the Power Supply and disconnect CN5 on the T-CON board. I have a power board on order from LG. Sometimes it's the T-Con Board but that's a bit tricky as it seems to store burn-in compensation information somewhere on there. I bought a new power cable hoping that was the problem but it did not help. Let’s educate ourselves about the potential causes that can lead to overheating in LG OLED TVs: Poor Ventilation: One of the primary causes of LG OLED TV overheating is poor ventilation I have similar burn in on my 2017 Sony A1E OLED (same panel as 2017 LG OLED) but when actually watching content it is not noticeable. Free OLED TV power board replacement service. I don’t have t Technician's Assistant: What LG model do you have? How old is it? Customer: OLED 65B6, 4 years old Technician's Assistant: Does the TV menu work? Do you have the same The issue can actually be the motherboard and not the power supply. The NAND software for example is used for the mura clouding , see attached picture. Got it on again, same thing happend after a few minutes - Then it died completely. It's never "on" enough to to boot or light the screen. 02. 5V also goes to the Reset circuit. Tried unplugging, hard power reset, etc…seems totally dead. The normal power cycle was to hit the button on the remote, hear a click as if the panel turns on, the. 5V. The reason of the Overheating issue is the increase in the current supply within the power board caused by performance degradation of some models and parts. I've had an LG OLED with a similar issue, replaced all boards with no result. And the red light stays red, as if the tv never turns on, which now it doesn’t. Make a 24V load test jig by using a standard 1157 automobile light bulb, (dual element). Apr 8, 2024 · Ok, but without the jumper between the 3. of certain TV models being affected in other markets. . Tv connected on hdmi port 3 for earc, Sony str-dh790 7. 5V_ST to the Main board, P2300 pins 3, 5 and 6. If the power outlet is OK you would need to check the standby voltage on the power board first to determine where the problem is. Dec 2, 2021 · Had to remove power cord. Now, when I hit the power button on the remote or the tv, it makes a click sound twice back to back. The Had a similar issue on my C1 about 2 weeks ago. After that I turned the TV on and get a floating message to press exit and then the Instop key. Note, only replace the power supply board if you know it is the cause for your TV's problems. Took vendor 8 weeks to fix it - brand new tv. Sep 23, 2022 · I have recently discovered that my 55OLEDC14LB consumes 30W on standby. Logged Best Regards, Chris . 4. My 65CX was repaired under warranty with a power related issue. I've tested and changed the fuse in the plug, tested it on other sockets, power cycled it, drained the capacitors etc, it's a brick. My local TV repair company won't touch it and advised I go to LG suspecting it's a power board Oct 18, 2024 · LG OLED TV 77 inch SMPS Board Replacement. I really don't know. Another thing to try is where the power cord plugs into the tv, give it a slight whack as mentioned here by 75lespaul Jul 22, 2020 · Reports are circulating that some LG OLED TVs are at risk of overheating. You could replace the main board and the power board on your own. We will cover all parts and labor costs for your TV repair as long as we can confirm the issue is indeed a burn-in. LG's Twitter support is what got me the one time complimentary repair. I disconnected the connector at the main board and shorted the pins for PWR ON and 3. Feb 13, 2023 · After fighting with my 2022 LG G2 83" OLED TV for some months, I was able to make contact with advanced support. So I said screw it, did my research and took a wild guess it might be related to a bad power board. The folks who came to fix came with both power module and main board and said it's quite common for the OLED Samsung models and they came prepared. about self repair LOL OLED at cold start always do Pixel Refresh. Power Supply EAY62171101 EAX63329901 TV Power Board for LG OLED Power 50PT350 50PT255C-TA 50PV450-UA 50PZ550-UA 50PW350-UE with fewer instances of failure and Sep 18, 2024 · Replacing the power supply board inside the LG 32CS560 is a simple task to complete with the proper preparation. Over 50% of the time it will be the capacitors on the Power Supply board that will be the Jun 14, 2022 · I bought OLED55G1PUA in March directly via LG's official website. 17 hours ago · Question LG OLED SCREEN BURN. In stock and ready for immediate delivery. " Regarding our OLED warranty, we wish to assure you that your LG OLED TV screen is ensure for a courtesy repair for the first 4 year of purchase should a burn-in occur on the set. Will the suffix at Shop for LG TV Power Boards, AC Power Adapters and Charger Replacements. I raised a warranty request via the LG support site. The Sep 13, 2023 · The most common cause if your LG TV keeps restarting is a voltage fluctuation on the power board triggering a reboot. Immediately after that, the TV went black even though the power Dec 3, 2022 · LG 65 C1 OLED bought new in December 2021 just switches off and loses all power - no red standby light. This is not a software issue. Yesterday, long story short, it stopped working. When plugged in, the power relay clicks slowly and repeatedly, with corresponding toggling of the power indicator. 4 hours later still haven't gotten my repair number. Tried disconnecting and reconnecting ribbons between the power board, t-board and main board to see if something wasn't fully connected, but found no internal problems. The service menu lists the model as a strong starting with “KEY” , the panel as “08/50/0/00” which I understand means that it thinks that the TV has an A2 panel and the firmware as A. It would make the clicking sound indicating the tv was receiving the signal from the remote but no action on screen. And it's working just fine. my 55" LG G1 took a dump on me this week. I reported to LG and they told me to I had 4x power outages due to a defective appliance in our house, my father came to look at the power box there was a defective appliance somewhere in the kitchen where the power went out several times I was looking at my new OLED van LG and it then also went out several times like all other devices where all around the house went without power, can this harm my OLED TV, which was then on top So, a replacement main board for our 2-and-a-half year old Hisense 55H6570G costs about $130. - LG EBU66105901 (Main Board) The main board I removed and replaced. Keeps turning itself off. When I plug in tv and push power button, I get a click on the power board, from the primary side. There is no reason you should have such problems. If Tv has a power button, unplug from wall power socket and keep the button pressed for 30s or so. The 3. Power supply issue supposedly. Part of this cost inculdes the repair shop coming to my my house to assess the TV and for them to take it away and repair it. It has worked fine thus far. Mar 13, 2018 · When ever I power my OLED TV with Model No: 55EG910T-TB and Serial No: 609KCJZ8E948, the red light power indicator below the front of the TV will be on, indicating there is now power on the TV, once I press the ON button on the remote control the TV will be processing to come up but suddenly it will go back to power mode, like the screen going off back to power mode were only the red power Jun 19, 2023 · Since the mainboard controls to tcon in effect and it is between the power board and the tcon, although the tcon is powered directly by the power board, then replacing the mainboard may be the first to try. If the panel is perfect I’d probably keep it. Sep 27, 2024 · I have an LG OLED TV, 65", quite posh for its day, bought in 2020. I'm 90% sure that's what the issue is (our TV doesn't go past the logo when you turn it on--the power light just flashes for a few seconds then turns off), but we have had other issues in the past like the screening acting up (streaks and no picture) and having to do a factory reset to fix it. To say I'm pissed off about this is an understament. It’s already in your house. first failure I've had on any of my oleds oldest being an e6p from 2016 Sounds like an issue I had with an older LG TV (just LED 1080p). So you have the main board, power supply board and t Couple hours later, it wouldn't power on again so unplugged for another hour. A couple weeks ago I replaced the power board, but I was still getting the same issue. Unless you think LG will warranty it and replace the cable since I bought it from an authorised retailer? Thanks, Aaron So it cost me around 840 to fix an 1800 dollar TV with warranty for replacement parts being 3 months. Avoid ordering the incorrect part for your LG OLED TV!Demo model: OLED77B2PUAThis tutorial applies to all LG OLED TVsFirst, remove the back cover and power c Instead, pressing the TV's power button causes the red power light to blink 3 times and then remaining off. Impossible to tell exactly what the root cause is without taking it apart and examining the components. I tried the unplugging, power reset, etc, but nothing worked. They are surprisingly easy to swap and like around $80-100 usd. How to repair a LG LED Smart TV when the picture does not come on. Hopefully LG can supply them to you for a few $100 instead of buying a new unit. The service aims to prevent a possible issue whereby the power board could overheat and fail. The main board was replaced first in my home, however the problem still Apr 10, 2022 · Power Outage. Perhaps finding a seller that has a good returns policy may help, if replacing it doesn't resolve the problem Feb 2, 2022 · - LG EAY65689411 Power Supply Assembly (I removed this board, added part #EAY65689423, as LG's website states the previous board is no longer manufactured, and the newer part is comparable and can be used). Oct 25, 2008 · My LG OLED55B9PLA (2019) developed the below fault. The power supply output on P201 only showed 3. Get LG help & customer support with our range of user guides, video tutorials, software downloads and more. LG uses all three on their own OLED series TV's, sonyy only uses grade A and Panasonic their own "custom" grade A. I was out of warranty and in Canada, an LG repair would have cost $1000. They came and replaced the power board insid Dec 20, 2024 · The main issue was the overheating of the power board, as LG reported, and LG started a drive to replace faulty models free of charge to its distributors. This time TV screen remained off. Unplugged over night and attempted to turn it on again but still no picture. They said it would be a problem with the hdmi, which it wasn't. thirty minutes. BestBuy replaced the TV a week ago, everything seemed fine. The light indicator on the bottom left lights up and stays solid for about 5 seconds then fades away. Question LG 65CX6LA Power board failure. For those wondering I bough LG c2 42 inch from USA last week kuwait voltage is 220 plugged the monitor directly to the socket without power alternator aka ( 110 to 220 converter). I started testing the power supply board per the second link. Newer t-con only need the NAND software. It could be the main board, but again the power from the mains goes to the power supply, then to the main board, which lights up the red LED. The red light goes away and it turns on. 5v STBY pin and PWR_ON pin at connector p2300 (pwr board to main board), I have no power going to the t-con board. Customer: I had to replace the main board on my LG OLED 65” TV. m1558. It likely needs a new power board (very simple replacement). OLED55CXPUA led tv pdf manual download. I'll probably try swapping mine out, but there's a few other symptoms mine has that I heard can be a t-con board, but I just wanted to double check. If the panel is perfect I wouldn’t want to start the process of gambling with a whole new model over again. There are a couple of good ways to break out of this boot loop, but before you break open your TV, you should try the simpler fixes detailed below then move onto the more invasive ways to get your LG TV out of the restart loop. Still nothing. BUY NOW http://www. Hi. After several emails and phone calls with Richer Sounds they agreed to send an engineer. No I can't watch anything, even via Apple TV -> HDMI or Chromecast. Oct 5, 2021 · Re: problems with LG OLED 55EC930V, t-con board LC550LUD-LGP1 @William1967 > There is a way to check whether the display or the t-con is the cause and that is to start the device in p-only mode, for this you need a service remote. I initially thought it could be a failure of the power board, but the fact that it will boot after a full power cycle makes me question that diagnosis. I tested the voltages on the power board and the only one that seems off is the 24VD (Shows up as 0. It's indicative of a board failure, either the power supply board or the main board has died. It’s never been short of competition, of course – but the fact LG remains the only company actually producing raw OLED panels for TVs can’t have done its prospects (or its sales) any ha Mar 6, 2021 · The power board sends a voltage signal to the mainboard when there is power connected to the power board and it is the mainboard that turns on the Standby power light if the signal is the correct value. It also flashed some white text once that read "smart service will be up and running shortly" or something similar, although it hasn't shown that since. I have tried the unplug for 60 seconds and while it's unplugged holding the power button down for 30 seconds. purchased 12/31/2021 with little to moderate use as a bedroom TV. Replace the power board with LG OLED77C8PUA Power Supply (LGP77C8 Do all OLED LG TV's have the special power cord? I found a good deal on a OLED65BX but it was returned without the power cord and I am trying to figure out if it has the special cord that can't be purchased. View and Download LG OLED55CXPUA service manual online. You could also just my the main board by itself but I would play it safe and by a complete set to be safe. I’d recommend reaching out to LG. Honestly, looking at everyone's timeframes of purchase to failure it seems like a very bad batch of C1's went out. May 30, 2019 · Contacting LG proved to be a waste of time. Also for: Oled65cxpua, Oled55cxaua, Oled65cxaua. OLED55/65C9PUA oled tv pdf manual download. Once it’s fully repaired, I will then reach out to LG as I’m really not happy. My OLED still isn’t fix! Power Board replaced and then experienced a different defect due to either a bad replacement Board or something new! TV is back in the LG service centre workshop where it’s been since after Christmas. May 16, 2018 · Hopefully its not a board needing replacement so a couple things to try. It's under extended warranty, but the shop has concluded panel failure without any troubleshooting. Might be two hours. Yes, my issue was the main board. Nov 10, 2009 · Replacing everything would end up costing $700+. Feb 2, 2019 · LG model OLED55C8PUA. I'd be worried this isn't a panel issue. It's doable just order same part numbers. Dec 13, 2020 · If there is a fault coming from screen or T-con to main board, the main board will lock itself after 3 failure. Motherboard replaced and still switches The first failure (vertical lines on the screen) occurred under warranty (~200 hours of use) and LG covered the panel replacement. However, if I want to buy an lg display I will buy from brands like Sony, Alienware, maybe Philips, Panasonic, etc, but never from LG Electronics. LG Display manufacturers panels at grades A, B and C. I love lg displays. Customer: dead set oled Technician's Assistant: Is your TV connected to a surge protector or power strip? Customer: replaced main board and power supply still dead Technician's Assistant: Have you tried to power reset your TV (unplugging the power for 1-2 minutes, then plugging it back in)? I think I have a busted t-con board in a free UN55EH6000 I picked up. And the TV notified that the update was successful and restarted. I bought a complete repair kit for my C1 on a website called shopJimmy and installed the new main board myself. shut off suddenly, followed by flashing red power light and solenoid clicking. BlueRider Novice Member. When I hold down power button the red light flashes (1x a sec), bit still nothing. Last night the screen went completely black with a single vertical line of pixels illuminated (so I can't check usage hours but expect it to be several thousand). Behavior remains identical. Hey guys, just picked up a 55” LG oled tv for free due to no power. Failure of tv happend after firmware update, and the watching a HDR demo clip on YouTube. Sep 6, 2022 · TV Turn On Commands (Explained) 55EC9300 OLED (2014) Power Supply Section 05 (1) When AC is applied to the SMPS, it outputs 3. Had to remove power cord. Apr 2, 2020 · Help fixing LG TV eax40097901/14 power supply board - Page 1 It could be an indication of backlight failure for example. 2019, so as to prevent any possible overheating issue. The LG site wouldn't let me schedule a repair, had to use the chat bot which moved me to a live chat. If I had to guess, probably a dead capacitor on the mainboard, or a power supply failure. ebay. 2, all devices going through the avr are detected, roku ultra 4802x, roku ultra 4640x and fire tv cube, but firestick 4k max stopped getting detected through the avr, only connecting the stick directly will work using another hdmi port Recently had done a factory reset of the tv, turning off Jan 9, 2023 · Re: LG OLed Main Board Swap Upgrade Compatibility you can also log in service menu " E-Z AdJ" take look if the B7 Panel listed at BX MB. We complied. fgvfkg nges qjbfz wfn tjctw vzk zwrql plpzc nnbz lmrcr