Question about Zenith IQC50H95W 50" Rear Projection Television
Was the wvay color present before you did anything? Low voltage from the HV tranformer (flyback) an cause this type of behavior. The crosshair for the convergence set-up should be white when they are all lined-up. The varistor pack for the three tubes needs to be recqalibrated for paper white to achieve this. You should NEVER move the tube alighnment magnets on the neck of the tube unless you replaced the tube itself. The coil on the back can be moved left to right the account for bad cross alighment. Bow and Pin must be done on the convergence board. Slideing the coil away from the front of the tube will blur the image. A convergence board is probably not the root solution for an aging set with daily use. Zenith power supplies relatively last 5 to 7 years at best.
Posted on Apr 10, 2007
The convergence IC's should be the first suspect in any convergence issue. Hopefully you can place the magnets back where they were or you will have that alignment to deal with first.
Posted on Apr 09, 2007
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