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Re: Bought ViewSonic monitor - image too wide

Poking around was worth a shot, especially since previous look inside did restore operation briefly. It certainly seems like a mechanical problem and resoldering various bits in the line and HV stage would probably make a positive difference. The area of interest is mostly confined into the area …

Re: Bought ViewSonic monitor - image too wide

That looks like a problem around what is called S correction. One of the fat capacitors seen on the last insides photo is responsible for correcting for it though the way things work is that if there's a problem the sides should be expanded rather than compressed... It is worth trying to exercise …

Re: Bought ViewSonic monitor - image too wide

The fault is likely to be in the zoo near the flyback transformer, probably the larger components. The closed up box attached to the neck is only video amps etc., there won't be anything that affects geometry there. Can you take a photo of the image and perhaps some of the main board itself ?

Re: Bought ViewSonic monitor - image too wide

That seems like some capacitor in the deflection circuitry is causing it, possibly a cold solder joint since you managed to get good image. If you are willing, run the thing open, and use some non conductive thing (plastic rod equivalent) and tap various bits and see if you can find the culprit.

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