Dell 2709WFP

[diif]

I have wanted a big monitor for a while so snapped up a dell 2709WFP for cheap off ebay that blew fuses after it had suffered from a power surge.
I stripped it down and after some researching on BCN discovered D651, Q651, R699 and R670 blown.
I have replaced these parts and when i apply power the fuse doesn't blow, however i fail to get the monitor to show and power and there is no 24v at connector CN701.

There is 342v going across the big cap.
Q601 tests ok.

I am suspecting IC601 a 1203P60 or the component's that effect it, 280v going in but nothing really coming out.

I am hoping for some help to get a little further. Thank you.

IC601 1203P60

1 288mv
2 1.28v
3 166mv
4 gnd
5 49mv
6 255mv VCC
7 350mv moving
8 280v

IC651 L6561

1 1.4v
2 540mv
3 1.4v
4 0
5 200mv
6 150mv
7 0
8 246mv VCC

[diif]

Re: Dell 2709WFP

I have removed IC651 and found a low resistance between VCC and GND and i have replaced. IC601 also has a similar low resistance so i have ordered a replacement.

[selldoor]

Re: Dell 2709WFP

Pic 3 bottomright corner is that a yellow fuse - tested?

[diif]

Re: Dell 2709WFP

Yes it is a fuse, and i've tested it and its fine.
I think its IC601, will update when i've replaced it.

[diif]

Re: Dell 2709WFP

A quick update, after replacing IC601, the monitor now powers on. Hurrah

However here is a electrical crackling and a burning smell coming from the area of my substitute MKP cap or transformer. My replacement cap is only rated for 305v but the one i damaged was 520v so i need to find a suitable replacement.