ViewSonic N3752w no picture, only sound

[cosmicdust]

I have a Viewsonic N3752 that about 8 months ago failed to produce a picture. There is no picture, a.k.a. “blank screen” no matter the input selected. There is, however, sound. The unit otherwise functions as far as I know. After some research, I concluded that the power supply (FSP271-5F01) may need repair, so I ended up ordering 15 capacitors (a "kit" was available for just this PSU, from many sources). I first replaced the three that were obviously “swollen” or bulging at the end (the sign of being blown), but there was no change. So I proceeded to replace the rest.

However, now when the unit is powered on, there is a brief pause, then a click, and the screen flickers (did not do this before the "repair", simply sat blankly). I am not certain that it "clicked" like that when it was fully functional, but I think that it did. Additionally, there were two of the capacitors that I removed at the same time, a 220u25V and a 220u35V (from locations CS33 and CS6), that I did not mark when I removed, so it took quite a bit of research to figure out which one went in which location, but I am reasonably certain they are in the correct spots (CS33=35V; CS6=25V).

Any thoughts, before doublecheck and resolder every wire I soldered…or I plunk down for a replacement power supply?

Thanks in advance...

[Basto]

Re: ViewSonic N3752w no picture, only sound

The spots are correct