Hi. Lg tv when I turn it on the screen shows unlock tidy horizontal pixels on the top without backlight. And step by step for 20 minutes the full screen shows up perfect. Is it the panel?
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Re: Lg tv screen comes on slowly
If you can see the pixels are you sure the backlight is working?
It sounds like a panel defect.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: Lg tv screen comes on slowly
I can see the backlight from the back of the tv . And the pixels what I see are lighting up.after couple of minutes a very faint vertical lines coming upAttached FilesComment
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Re: Lg tv screen comes on slowly
Disconnect the ribbons between the screen and the tcon board, one at a time and power the set on.Comment
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Re: Lg tv screen comes on slowly
HI
please lcd tv type , more pic .
yes this is fault can be panel or dc-dc converter in t-con board . here the voltage VGH (MORE THAN 20V) IS NOT FOUND or very small . IF YOU look at T-CON BOARD THIS VOLTAGE IN IT COMES FROM IC AROUND IT 2 TO 3 BUCK COILS try to found VGH and measure it .
PLEASE SEND PHOTOES .
thanksComment
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Re: Lg tv screen comes on slowly
Thank you all guys . I'll check all what you said today after workComment
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Re: Lg tv screen comes on slowly
I would say most likely the panel is bad.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Lg tv screen comes on slowly
Thanks guys . It's the panel unfortunatelyComment
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Hello everybody! Posting this in hopes somebody has some expertise that leads to a clear path of troubleshooting that saves me a lot of time!
My macbook has the flex cable problem, the one that prevents the screen turning on. Ive been dealing with this for the last 3 years. Last year it went dead and I managed to fix it following youtube tutorials. But my fix wasnt the best, the problem returned a month later. This week, it went dead again. I again tried to fix it.
This time the original cable broke too close to the screen, it can't be fixed without tearing the screen... -
Just had a customer bring in a M2 MBA A2681 that had had a screen replacement in April at another repairer. Since then, she has been getting intermittent kernel panics. It's an aftermarket screen, and of course it fails in diagnostics as the calibration hasn't been done. The error in the panic log is "No device added after powering on the rails".
It seems the original repairer has swapped the board and the screen to other MAC's, and said that it isn't a screen issue. From what I understand, by doing a quick search on Google, this is in fact a screen issue. The panic relates...07-31-2025, 08:37 PM -
Hi,
I have a iphone XS that came in for a screen replacement, the screen was badly cracked, and inside missing scues, on the back of the screen still the blue protector, the screen was a LCD. So we replaced the screen and all good, installed the screen and we noticed that pressing the screen with a bit of force but not excessive, the phone dies. After plugging the charger it turns back on, but again if you press it it dies. I open the phone again, and I can't see anything major, with the phone open, if I press on the logic board, battery, charging board, or even putting pressure on... -
MacBookPro 2012 15” A1398.
No visual damage was found.
Mac was inside of suitcase and it was inside of a bag.
Mac boots up,I can hear the chime,but the screen is totally black,not even “light” black. Caps lock light doesn't work.
I tried SMC,PRAM reset, didn't work.
Reconnecting screen display by unplugging those two things didn't work. I used this video
Reconnecting battery didn't work.
I also tried SMC,PRAM reset while the battery was disconnected and Mac was getting... -
Here is a pretty crazy one.
Step 1.
Laptop was brought to me as dead not working. Removed everything , cleared everything.
Step 2.
Some liquid damage close to the Type - C connector, and the connector even though it was cleaned wasn't charging the battery . Removed the Type-C port, and replaced it. Now the laptop turns on and charges battery. Shows external screen , not internal.
Step 3.
Took out the screen and checked it to a secondary Gen 2 i have, screen works like a charm.
Step 4.
Lets ,dive into the board. I see the edp cable on the...
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