Question about Sharp Aquos LC-37D4U 37 in. LCD Television

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My sharp aquos lc 37d62u will not power on; the power light flashes 4 times, pauses and then repeats the 4 flashes. Does anyone know what this error code means? Thanks!

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It is detecting shorted circuits or power supply problem, need in-depth troubleshooting. Inspect the power supply module first for any sign of bad caps with domed tops, DC output voltage readings check.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
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
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 and long life rating such as PANASONIC FM or FC series.

Posted on Mar 28, 2011

Testimonial: "Very quick response and very helpful. Thank you!"

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