Dell E207WFPc Vertical Lines

[chuckup]

Hello All,

First post great forum!!

Please see attached. I have two of these Dell E207WFPc's that are doing the same thing. I have searched this forum for related symptoms with no luck. Was hoping someone can look at picture and point me in the right direction. Have all test equipment at my disposal if needed.

Thanks,

Update: All voltages from the power supply look normal. Verified all voltages on regulators of the video board. Not sure what the voltages are supposed to be leaving the video board to the panel. Removed and re-soldered inverter transformers. Saw a post somewhere about bad solder joints at these transformers. Lines are present with or without input connected. Lines also present on OSD.

[retiredcaps]

Re: Dell E207WFPc Vertical Lines

Update: All voltages from the power supply look normal. Verified all voltages on regulators of the video board. Not sure what the voltages are supposed to be leaving the video board to the panel.

1) Post clear focused top down pictures following my sig file below exactly.

2) List your power supply voltages and list the part numbers for the voltage regulators and their measured voltages so we can verify.

3) Include a picture of the panel board. This board is at the top of your lcd and runs the entire length of the lcd. It might be behind a metal shield.

[Jasgriff]

Re: Dell E207WFPc Vertical Lines

Welcome to the forum,

The voltage regulators will have a model written on them. This will have a number in there which will correspond to the voltage that you should be getting out from it. Some voltage regulators are adjustable so they will have a model number be we will have to work out what the correc:-) t voyages should be.

If you let us know what is written on each of the voltage regulators then we can tell you what you should be getting out of them.

As retired caps mentions above we need pics. Its very difficult advising from a distance and even more difficult when we can't see what your looking at.

[chuckup]

Re: Dell E207WFPc Vertical Lines

Thanks,

Voltages exiting power supply

N/F - 3.07v
N/C - 0
Dim - .384v
+14 - 14.27v
+14 - 14.33v
+5 - 5.66v
+5 - 5.05v
Gnd - 0v
Gnd - 0v

U601 on Video Board - No part number covered with heat sink.
Pin 1 - 0v
Pin 2 - 3.38v
Pin 3 - 5.09v

Q401 on Video Board - AZ1117D1.8E1
Pin 1 - 0v
Pin 2 - 3.30v
Pin 3 - 1.83v

U402 on video Board - 691D6
Pin 1 - 0v
Pin 2 - 3.03v
Pin 3 - 4.97v

No voltage measurements have been taken on the Panel Board yet.

[chuckup]

Re: Dell E207WFPc Vertical Lines

Measured both regulators on the Panel board.

J293 9177-18
Pin 1 - 0
Pin 2 - 1.81
Pin 3 - 3.28

J293 9177-33
Pin 1 - 0
Pin 2 - 3.29
Pin 3 - 4.77

Just do not know enough about panel boards at this time to know what else to look for.

Thanks,

Chuck

[retiredcaps]

Re: Dell E207WFPc Vertical Lines

U402 on video Board - 691D6
Pin 1 - 0v
Pin 2 - 3.03v
Pin 3 - 4.97v

From what I can see, U402 is a 8 pin IC on the video board?

Please circle the 3 pin voltage regulator that you are referring to and double check the voltage on pin 2.

[chuckup]

Re: Dell E207WFPc Vertical Lines

Sorry typo on my part..it's u302. I was verifying voltages as per post from PlainBill below.

https://www.badcaps.net/forum/showth...207wfpc&page=4

Not sure which pin is which but

Top left is 3.03v
Top Right is 0v
Bottom is 4.97v

The number on the IC is 691D6. Not having any luck identifying it.

Thanks,

[selldoor]

Re: Dell E207WFPc Vertical Lines

These pictures are marvellous - you wouldnt believe some of them we see, or rather dont see.
I dont know if it is relevant but in Pic 1 (Panel Board) there is a fuse F5 just to the left of U1 As you get pics and OSD on screen I dont think it can have gone but always worth checking.
Also I am wondering if your unidentified 691D6 and Killian6pk's unidentified 6910P could be a G910 -Retiredcaps might advise.

[Tiberian]

Re: Dell E207WFPc Vertical Lines

I know I know I know this is a very very old thread and thread necromancy is generally frowned upon at pretty much every forum online but...

I just got one of these monitors and it's exhibiting the same symptoms. It works great, but obviously those vertical disruptions are somewhat irritating - does anyone know if there was ever a specific diagnosis found and a specific fix, whatever it might happen to be? Hate to just toss out the display because of something that might potentially be fixed with something simple but I don't have a clue myself, just learning from others.

If anyone has any info I'd greatly appreciate it, thanks.

Note: if an Admin or Mod determines this post needs to go then so be it, it seems to be the only thread with any relevant info at all so I decided to make this post in the hopes of finding a solution.