I have a 46" Sanyo Flat Screen.. the tv was working fine earlier in the day. Now the power light will come on but the screen is black.. the power light will blink every few seconds if the tv is on. What could be the problem?

Posted on Sep 24, 2011

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I have a 46" Sanyo

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Bud Martin

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Posted on Sep 24, 2011

Bud Martin

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It can be bad power supply due to bad caps, bad backlights inverter board that draws too much current so the TV goes into shutdown/restarting cycle.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Parts: www.interliquidparts.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

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