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I have sound but no picture on my tv its a 37' memorex flat screen it's around 3 to 4 years old

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It may be the 24vdc power supply problem or backlight inverter board problem.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

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http://en.wikipedia.org/wiki/Capacitor_plague

Posted on Aug 21, 2010

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Posted on Jan 02, 2017

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