What is the exact system model? When did the issue start? Is there any physical damage / liquid spillage on the system? Is the distortion seen from the time the system is powered on?
Connect an external monitor and check if the display works fine.
Run the LCD bist - Turn off the system and press and hold the "D" key + power button to turn on the system and it should run the LCD built in self test - see this link for more info - http://dell.to/1SkXNrG
Restart the system and press f12 key on startup - choose diagnostics. Let it run the diags and if you encounter any errors - make a note of the complete error and report the same to us. These are onboard diagnostics and they might possible pick some error if the hardware is not functional.
Also, restart the system and press f2 on startup and check if the distortion is seen while in BIOS as well.
This will help isolate if the issue is with LCD or the motherboard / video card.
If the distortion is seen on external monitor as well and if the LCD self test passes, then the video card is at fault.
However, based on your description, I suppose the LCD cable might be loose and causing this issue.
http://dell.to/1n3X2po - enter the service tag and download the service manual and reseat the LCD / LVDS cable and check if it works.
Also, please click my DELL-username and write me a private conversation with the service tag and your contact details(Name and Email) for case records.
Thanks for your response, Rishi. (I apologize for the delay in getting back to you).
Unfortunately I don't have an external monitor available, but when I put the screen cover back on, the screen was functional again, though the initial problem still remains.
The exact model is a 3542. This has been going on for several months, though just recently got worse. There's no physical damage/spillage that I am aware of. The distortion is occasionally seen upon startup, but it depends on the screen angle/pressure just like any other instances of distortion.
I ran the LCD BIST and the diagnostics test, the results did not indicate any error. The distortion did occur in BIOS when I adjusted the screen back and forth.
I looked at the service manual but I wasn't 100% sure which procedure the one you were referencing was.
Download the service manual and see page 76 onwards on how to reseat the display cable from the motherboard end. Further on, for non touch displays, you could reseat the LCD cable or replace the cable and check - you would need this part - http://bit.ly/2fw6y8A
On most panels, the cable might be fused to the assembly with adhesive. Replacing it could be quite a task.
You could also, order the parts through the link above.
If there is no warranty, then you could contact our team to get a quote for a paid service call - http://dell.to/1vnT6CQ
DELL-Rishi
4 Operator
•
2K Posts
0
November 17th, 2016 12:00
Hi ENGLISHNA96,
What is the exact system model? When did the issue start? Is there any physical damage / liquid spillage on the system? Is the distortion seen from the time the system is powered on?
Connect an external monitor and check if the display works fine.
Run the LCD bist - Turn off the system and press and hold the "D" key + power button to turn on the system and it should run the LCD built in self test - see this link for more info - http://dell.to/1SkXNrG
Restart the system and press f12 key on startup - choose diagnostics. Let it run the diags and if you encounter any errors - make a note of the complete error and report the same to us. These are onboard diagnostics and they might possible pick some error if the hardware is not functional.
Also, restart the system and press f2 on startup and check if the distortion is seen while in BIOS as well.
This will help isolate if the issue is with LCD or the motherboard / video card.
If the distortion is seen on external monitor as well and if the LCD self test passes, then the video card is at fault.
However, based on your description, I suppose the LCD cable might be loose and causing this issue.
http://dell.to/1n3X2po - enter the service tag and download the service manual and reseat the LCD / LVDS cable and check if it works.
Also, please click my DELL-username and write me a private conversation with the service tag and your contact details(Name and Email) for case records.
Let us know if you have any other queries.
englishna96
1 Rookie
•
2 Posts
0
November 20th, 2016 23:00
Thanks for your response, Rishi. (I apologize for the delay in getting back to you).
Unfortunately I don't have an external monitor available, but when I put the screen cover back on, the screen was functional again, though the initial problem still remains.
The exact model is a 3542. This has been going on for several months, though just recently got worse. There's no physical damage/spillage that I am aware of. The distortion is occasionally seen upon startup, but it depends on the screen angle/pressure just like any other instances of distortion.
I ran the LCD BIST and the diagnostics test, the results did not indicate any error. The distortion did occur in BIOS when I adjusted the screen back and forth.
I looked at the service manual but I wasn't 100% sure which procedure the one you were referencing was.
Where do I go from here?
DELL-Rishi
4 Operator
•
2K Posts
0
November 24th, 2016 13:00
Hi ENGLISHNA96,
Thank you for the update.
Download the service manual and see page 76 onwards on how to reseat the display cable from the motherboard end. Further on, for non touch displays, you could reseat the LCD cable or replace the cable and check - you would need this part - http://bit.ly/2fw6y8A
On most panels, the cable might be fused to the assembly with adhesive. Replacing it could be quite a task.
You could also, order the parts through the link above.
If there is no warranty, then you could contact our team to get a quote for a paid service call - http://dell.to/1vnT6CQ
Let us know if you have any other queries.