Re: Viewsonic VA1616W driver board burned
Have you checked the values of R9, R12 and R15? that may not be your problem. Check the voltage on (1_8AVCC1)1.8v and (3_3VCC1) 3.3v
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Re: Viewsonic VA1616W driver board burned
Most likely I connected the VGA cable to a hot one (the laptop was connected to the network via an adapter and the monitor was connected to the network).Leave a comment:
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Re: Viewsonic VA1616W driver board burned
It seems odd to me that connecting the vga cable did this, there should only be video signals of around 1v p/p on these lines.Leave a comment:
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Re: Viewsonic VA1616W driver board burned
Is this not the same board? https://www.aliexpress.com/i/4001097110422.html, You may need to swap the spi ic U6Leave a comment:
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Re: Viewsonic VA1616W driver board burned
give it a good cleaningLeave a comment:
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Viewsonic VA1616W driver board burned
Hi everyone, i connected my va1616w monitor to netbook and it burned components of the driver board in the vga port area, i think i bad connected the cable by mistake. After this the monitor power on but never receives signal from computer or any connected to vga port.
I didn't find schematics of the driver board. Also i tried a universal lcd controller (mt6820-t) board with the panel but it was not supported. This is repairable or the board is dead? Thanks in advance. Images of the board:
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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
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Problem
This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached.... -
Hi All,
I picked up a Samsung UN65RU8000FXZA 4k Smart TV a few weeks ago, in hopes I could repair it and get it working. It was purchased in Nov 2019, Samsung already replaced this tv by the original purchaser.
I have eliminated the main board and power supply, and back lights are working. It was cycling on and off when i got it, I disconnected ribbon cables until I pinpointed it down to an LED driver board, and with the suspect board or ribbon cable section, 3/4 of the TV will now stay on and it no longer cycles on and off. I haven't found any shorted capacitors...
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