Question about Sharp 32C-240 32" TV
This problem can result from the aging of various components within your set, in general with older TVs, particularly sets of 15 years or older for example tend to suffer from capacitors that degrade - effectively reducing the maximum level of picture illumination available. Another issue for old sets that have been used extensively is that of the picture tube's electron gun aging, over time the gun produces fewer electrons to fire at the phosphor coating hence causing less "glow" - this can be sometimes improved by adjustments to the tube. All in all the set may require a decent service to ***** what aged components need replacing. Some later TVs do have a trimpot on the flyback transformer to allow the tube's brightness to be increased, but most older sets lacked this feature. SHARP did have this feature on many of it's 90s TVs but it needs to be adjusted with care by suitable techs due to the dangerous voltages present.
Hope this info is of some help, Regards.
Posted on Aug 15, 2010
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Posted on Jan 02, 2017
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