Just wondering if anyone knows if this board https://www.aliexpress.com/item/HENR...ceBeautifyAB=0 would work in a 47lw5300? Or does anyone know of anyone in canada that repairs the eax64290501 (0) boards?
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Re: Lg 47lw5300 main board
That mainboard is different than yours. It doesn't have 3d, the tuner is different etc. Even if you could resurrect the old TV somewhat (if that new main board supports your panel) it wont have the same features it once did. I'd pass on that main from ali. -
Re: Lg 47lw5300 main board
Here are the pictures of the board. All of the voltages checked with a volt meter came back correct except the PWR-ON. It is supposed to read 24V but came back 3.4V. This looks like a main board issue doesnt it?Attached FilesComment
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Re: Lg 47lw5300 main board
https://www.ebay.com/itm/REPAIR-SERV...4AAOSwstJZUmOp
LG mainboard repair service, haven't used this service myself but they have 100 percent positive feedback.Comment
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Re: Lg 47lw5300 main board
i think pwr on at 3.4v is correct the other pins should read 24v whats the fault with your tv?Comment
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Re: Lg 47lw5300 main board
I got it going. All voltages were correct so I assumed main board. When i applied small pressure to the main board, L497 was sparking so i touched it up with some solder and it didnt anymore plus i did the hair dryer trick on the bga for approx 4 mins. The tv was not coming on.Last edited by Jackching; 03-12-2018, 06:44 AM.Comment
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Re: Lg 47lw5300 main board
if it fails again you may need to get the bga re flowed properly some people have success using a heat gun/flux too maybe or check on ebay see if theirs a services to reflow it for you if you cant do it yourself.Comment
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Hi and thanks in advance for any input you might provide!
I have a Sceptre U550CV-UMRD8POTV83BB 4K LED (this is a dumb tv) that I bought new in August 2021, so It's just completed 3 years.
Main power board model: TP.MS3683.PC821 T-Con board: N4TP546UHDPU2L_BO
Last Sunday I was watching a dvd and fell asleep for about half hour, when I awoke the tv screen was black and couldn't get the dvd menu to show, so I changed the input to antenna and had sound but no picture, turned it off. I then got online and found this great site! ....read many troubleshooting tips and this... -
Hi everyone,
Iām looking for help with a persistent issue on an LG TV model 55NANO77SRA, which uses the main board EBU66792103 (also used in LG UQ80 and NANO75/NANO80 series).
š§© Problem Summary:- The TV keeps scrolling through the menu or selecting items by itself.
- I removed the physical button board (the entire panel with power and volume buttons) and also disconnected the flat cable (CN202) from the main board.
- The remote control is not in use (batteries removed), and the TV still shows the same behavior.
- I
07-28-2025, 08:34 AM -
Hey guys great forum glad to have found it. I bought a Sony XBR 65X900C cheaply because it didn't work. No signs of life at all not even a light/led. All I hear is a brief high voltage sound when I throw the power to it.
Didn't see any obvious signs of damage so right away started checking voltages. This is what I see:
Power Board Connector that goes to Main board
CN6401
Pin 01 NC
Pin 02 NC
Pin 03 "BL_ON": 0V
Pin 04 "N/C"
Pin 05 "STBY 3.3V": 3.5V
Pin 06 "GND": N/C
Pin 07 "AC_OFF"... -
ONN 100012588
Issue: No Power, Then Rebooting After Main Board Change
Short answer: replace main board and power board
Technical answer: replace main board and Q306 & Q307 on power board.
Long answer:
TV wouldn't turn on. Power switch was fine which means the main board isn't processing the power on signal. Replaced main board. TV turns on now but randomly reboots. Bad main board? EEPROM? Tried to pull main board and got a shock touching the corner of the board. That's weird. C334 (450V 10uf) capacitor is still holding a high charge.... -
Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic...
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