Re: Problems with Samsung 740N monitors


did you change the 2 AF4502C by 2 MMDF2C03HD?

I can't found the AF4502C mosfet here, if i found the MMDF2C03HD can I put it n the place of the mosfet?...

Re: Problems with Samsung 740N monitors


HAHAHA! It's easier to me learn english than you learn portuguese! Portuguese is a very difficult language to learn, even for us! Too much little rules...



ok, but I have a new 470uF cap, I'll change it just to get the capacitance value next to original value. Or is it better to maintain a capacitance greater than original?



Great! I can not found a fuse like the original here in my city (Curitiba). Maybe in São Paulo I can found it, but it's more than 400km from me!
...

Re: Problems with Samsung 740N monitors

Greetings from Brazil! Sorry about my bad english..

I have a Samsung 940B and the background lights were not working, but the LCD image is ok!

I found the 3 820uF 25V bulged capacitors and changed it for 3 1000uF 25V, but I think I'll change one of them and put a 470uF 25V.

I found the 3A fuse, it was blown and I put a normal 3A fuse (with wires out of the board), is there a problem here?


The monitor worked well by 2 hours, and then the lamps started to turn off and on by...