Re: DELL P2717H 27 inch white horizontal lines on screen
I changed them all today, but unfortunately there is no improvement.
reaper422
Member
Last Activity: 01-06-2025, 05:16 PM
Joined: 10-23-2013
Location: sofia
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Re: DELL P2717H 27 inch white horizontal lines on screen
After a little more play I got to IC 102 after removing the resistors for VDD1 and VDD2.
The vertical lines disappeared and the DC / DC converter stopped maintaining a high operating temperature.
There are now several rows of horizontal lines at the bottom of the screen and some shivering on the screen that I can't capture in a photo.
And again I come to the marking of the integrated circuit which I cannot decode.
The marking is 2T = 3M 50J....Leave a comment:
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Re: DELL P2717H 27 inch white horizontal lines on screen
Thank you for the information.
The chips have arrived.
After replacing the DC / DC converter, the foreign sound disappeared but unfortunately, the converter heats up again and after a few seconds more the lines return.
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Re: DELL P2717H 27 inch white horizontal lines on screen
Thanks.
I will order from aliexpress, and I will write if the repair has been successful.
If it is convenient to ask, where can I find a description for this type of marking?Leave a comment:
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DELL P2717H 27 inch white horizontal lines on screen
Hello,
I have a problem with the Dell monitor whit LCD Panel MV270FHM-N20
that starts with a normal picture but after three or four seconds of work, it starts to draw horizontal lines progressing from the bottom to the top.
The power supply generates stable voltages.
The power supply of the matrix is 5 volts, which is also stable.
I don't think normal sounds can be heard from the LVDS board.
After measurements are made on the test points on LVDS, the measurements are
VGH 23.7v
AVDDS 11.7v
AVDD 11.7v
VOFF -7.7v
VGL... -
Re: New Members - please post your introductions here
Hi
Yuriy from Bulgaria, I signed up because I really want to learn how to repair all kinds of electronics.Leave a comment:
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