Hi there, I currently have similar board with same problem. A2115 - 820-01779-3 (2020). New to Soldering and board diag.. We've located many shorted Caps using voltage injection and thermal.. This board is reading open circuit on Caps C7261-C7250 along with any other components on the PP12V_G3H_CPUCORE rail.. I however get no glowing component on the front or rear of the board.. Each of these Caps reads less than a V or Resistance when measuring directly across each one, and also beeps to ground on both sides on all of them.. This should be shorted correct? Is 1V-1.5V / 2A-5A injection to locate the short too low? Should we inject higher voltage?
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https://www.badcaps.net/forum/troubl...r-s-guidelines
Review beginners guidelines. Low ohms on CPU Vcore is normal and new comers will often believe it's a short. Your fault is likely elsewhere.
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
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... -
All left and right refers to looking from rear of TV (or looking from front with TV upside down)- TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
- Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
Today, 05:17 PM -
Hello,
I am working on an iPhone SE 2020 motherboard. I am hoping someone is able to provide a close-up to help me better see what this section is supposed to look like. I am including my digital microscope images. I am also looking for schematics. This is a v3 board I believe, and my schematics are for a v1 board only. You see this burned out area. Are you able to provide a digital microscope image for me of this section (problem area)?
Thank you!
Problem area:
Front
...06-23-2025, 02:13 AM -
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...
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