Question about JVC AV-27530 27" TV

JVC AV 270305 Brightness not Bright enough.

My JVC AV 270305 27 inch television is not bright enough. I have maxxed out the brightness on the menu screen and it could still use a little more brightness. Any solutions??Thanks!

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Lashawn Robinson

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1,153 Answers

Yes you could look for the capacitor that is leaky, probably in the 200v line, or you could just open back and turn up G2 screen control on the Flyback. You have Screen and Focus on this black transformer with a long anode lead going to the picture tube of set. Becareful, High Voltage!

Posted on Sep 08, 2007

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Jvc av 27530

**WORKS**

In my case, the adjustment was available from outside the TV. Sortof. On the rear of the TVabout 2 inches to the right of the coax in, there are two vertical slits on a little protrusion. Inside the slits are the two adjustment screws. The lower screw adjusts brightness, the upper screw adjusts focus.

Dec 23, 2007 | JVC AV-27530 27" TV

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If you feel good about opening your set then you can try this: Look for the flyback (high voltage) transformer, with the thick red wire which goes to the top of the picture tube. There are 2 controls on the flyback transformer, focus (top) and screen (bottom)Turn the brightness and contrast all the way down and then increase the screen control until you see retrace lines, and then back it down until those lines just vanish. Return the brightness and contrast to normal and adjust the focus control, if necessary, for a nice sharp picture. Let me know if that brings your brightness back.

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Hello, please check the 10uf/200V capacitor around flyback transformer. Best regards, Arpi

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This sudden changes in brightness are caused by the change in voltage inside the tv,not in the outlet in the wall but inside the set,The changes are an indication something is going wrong and it needs to be corrected,the set does have a brightness limiter but it only works when the set wants to get brighter than normal,You need the assitance of a servicer to correct this problem.

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JVC AV 270305 Brightness not Bright enough.

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