Re: Back light problem
Pictures are nor really clear enough - need to be able to read the component numbers on the boards. When it is on can you tell if any bulbs are out (one corner dimmer etc.)
We also need a pic of the inverter board and possibly the Tcon.
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Re: Back light problem
Good clear pictures of the back of the TV and the boards so we can see what we are dealing with?Leave a comment:
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Back light problem
HI I've got an ALBA LCD32880HDF in with a back light going off after 30 secs or so. voltages are a bit of a problem as their not marked on the pcb. When it starts up im getting a 24v, 12v, 5.3v, 3.3volts when the back light goes off the 24v drops to 18v. So im not sure if I have a PSU or an inverter problem or something else.
thanks
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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... -
hi to all
tv turn on and show logo(backlight on)than backlight turn off than red led in front blinking 7 time. the tv remote control working fine (sound on no picture).backlight changed same problem
in 65k560 how to remove protection of backlight? picture of inverter and sockets attached .
please advise me tnx05-20-2025, 07:11 AM -
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.... -
Hello friends,
A yellow light was flashing on my monitor. It was like it was constantly cutting power. When I opened it up, I saw that the big capacitor in the high voltage line was leaking. I replaced it. When I turned it on for the first time, it had the same problem again. But then, interestingly, it got better. The yellow light was on steady. But the monitor wouldn't turn on. When I examined them with a thermal camera, I saw that the Fli5961-LF reached 50 degrees Celsius and the EM636165TS next to it reached 100 degrees Celsius and was drawing high current on the motherboard....11-13-2024, 07:00 AM -
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
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