Re: Sharp LC-70C8570U
Never mind about the negative voltages haha probs were backwards ��
Never mind about the negative voltages haha probs were backwards ��
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This happened last Saturday and today I finally had time this morning before I went to work to replace two non brand capacitors
I will let you be the judge weather or not these are bad or not according to the blue ESR meter that I am using
I am comparing them to a brand new one that I installed
The display came back on and the programming was not lost which I was surprised by I would have thought that when the display went blank that so did the memory as well
I going to let it run for several days before I remount back on the wall next to the... -
It's been a while since I've checked in here or needed input on narrowing down what to replace on a TV repair, but I've got one on my bench now that has me wondering. The lack of part (board) availability means I may need to do some component-level diagnostics, and a second opinion is always good when it comes to that.
The issue - Sharp LC-80LE844U does not display. Power light comes on for a while, then you can hear a relay click off and the light blinks twice slow, then five times fast. Service manual points to 'Panel Power Supply Error' with this code, but isn't much more help... -
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 people!!
The owner said it showed bad picture once in a while (attached)
I see that there is back light but no picture.
I want to ask if it is possible to disable the NVIDIA GPU and use the intel one?
Also attached schematic and BDV
LINK to schematic & boardview - https://www.badcaps.net/forum/troubl...ll-vostro-5590...07-13-2025, 01:03 PM -
So this laptop seems to have some kind of failure. I bought it second hand and originally the previous owner said that they went to turn it on and it was presented with a quick flash of the power light the keyboard lit up and then the keyboard shut off and the power light went off as well but the battery indicator was white and after about 5 to 7 Seconds flashes orange really quick then shuts off and goes back to White. If the power button is pressed again the keyboard lights up really quick and then repeats. When I got it I could press the power button multiple times the keyboard light would...
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