Re: Dell 1702FP won't power on (lights just flash)

Well, you guys are geniuses… the monitor is working again!!!! I have to admit I was pretty skeptical but I decided to try replacing the diode. I was ready to throw the monitor in the trash out of frustration and the way it was cluttering up my room, but I really didn't feel right about giving up after all the help you gave me. I was out of town for work for a while but I finally got around to ordering the part that PlainBill suggested. I just replaced it tonight and what do you know, the monitor turned right on! THANKS again for...

Re: Dell 1702FP won't power on (lights just flash)

Great thanks for the help. I will try replacing the diode. I'll post back the results.

Thanks again!

Re: Dell 1702FP won't power on (lights just flash)

I tested the diodes the correct way this time. Here are my results:

D3 Test
Red to Black - .479 v
Black to Red - .124 v

D13 Test
Red to Black - .0 v
Black to Red - .0 v

It seems like maybe I should replace the diodes? Do you know what value they are and where I could purchase them? The part says “S3 22” and it's written like this:

S3
22

What do you think my odds of this thing coming back to life if I just replace the...

Re: Dell 1702FP won't power on (lights just flash)

Well, I don't know if I'm cut out for electronics repair. It took me about an hour to finally figure out how to remove the mosfets and in the process I managed to break off L2 so I had to solder that back on! I sure hope I learn from all this…

I did the other tests suggested but I don't know what they mean Here are my results:

D13 Test
Fluctuating between .5 and .3 ohms

D3 Test
.793 k ohms

Q13 Test
a) black on pin 1- red on pin 2 – 10.65 M ohms...

Re: Dell 1702FP won't power on (lights just flash)

Well, I tested the mosfets as suggested and I have posted my results below. I wasn't exactly sure what the pin order was so hopefully I did it correctly. I have attached an image to clarify what pin order I used. Also, I couldn't figure out how to set my multimeter to 200 ohms. I looked in the manual and online but it seems I could only set the scale (M, k or just ohms). Hopefully that will be ok. All the mosfets have the same identification on them (“C5103” and “Q A” on the next line) so it appears than two of them are...

Re: Dell 1702FP won't power on (lights just flash)

Thank you both for the quick replies! I really appreciate the help. I have been getting pretty frustrated with my lack of knowledge and understanding I was just about to give up. I have hope again!

Retiredcaps,
1) I have attached two more pictures of what I hope are the logic board. I was hoping you wouldn't ask for them because it will show my very poor soldering. I read online that to test capacitors with a capacitance meter you need to remove one of the connections from the board. So when you see lopsided,...

Hello,
I have searched this forum and the internet for hours trying to find my solution. Since I can't find anything I thought I'd post here since there seems to be a lot of very smart and helpful people.

I have a Dell 1702FP that won't turn on. It has the same flashing light pattern as monitor in this video: [URL="http://www.youtube.com/watch?v=vUmX2E6bzf4"]http://www.youtube.com/watch?v=vUmX2E6bzf4[/URL]. I found a post on Instructables.com here: [URL="http://www.instructables.com/id/FREE-17%22-LCD-Monitor---How-to-do-it%3F/step1/Go-and-find-a-faulty-Dell-1702FP/"]http://www.instructables.com/id/FREE-17%22-LCD-Monitor---How-to-do-it%3F/step1/Go-and-find-a-faulty-Dell-1702FP/[/URL]...