Re: viewsonic vx2835wm no power

I see,
and according to you, that flux was residue present from the time of manufacturing? Or was it there after some overheating (which i supposed to be the case)?

Re: viewsonic vx2835wm no power

Rtech: you were right.

Budm: If it was flux, would alcohol have gotten rid of it?(without need for scratching)

Re: viewsonic vx2835wm no power

I have NO idea how to start to test these components (my ee classes are far! ) what boggles me is how to test components without taking them out of the system.

Okay I have cleaned the residue, that smelled like burnt something, I had to scratch it with a blunt object, I haved posted a pic.

I have a multimeter of course and i know how to use it but is this component a transistor..? (strange that the middle pin does not seem connected to any circuitry..) and right above it , right newt to the small cap it says: CAUTION:...

Re: viewsonic vx2835wm no power

Hello, for presentation, i'm a computer enthousiast but not much of an expert

I have a Viewsonic VX2835W, and it has been misbehaving recently. Sometimes the power goes off and does not go on until i unplug and replug it several times.

Thanks to all of you I know that i need to replace 124 and 126 on the video unit , but on the power unit I seem to have a burnt component, (not sure what it is though)
I have taken pictures for you to see.

I would appreciate if an "expert" could tell...