Question about Televison & Video
My supra TV ( Model ST21AA65B ) picture went too small. How to Zoom out. Is there any issue with picture tube ?.
Supra tv circuit diagram power supply
Posted on Jan 06, 2013
Shrinkage of the picture size is usually a result of a problem in the low voltage power supply and/or deflection circuits. Unfortunately, the days of taking off the back cover of your TV and
replacing a defective tube or fuse are long gone. Proper servicing will
require troubleshooting procedures that can only be performed by a
qualified electronic repair facility or professional television repair
person. Ask for an estimate and a realistic appraisal of whether the
set can be adequately fixed. Depending on the age and condition of your
TV it may not be cost effective to repair.
Posted on Sep 13, 2009
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Posted on Jan 02, 2017
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