More likely to be bad T-CON board or poor DC feeding it, you need a lot of disassemble to troubleshoot it. http://www.scribd.com/doc/25276757/E40951307-TCON-Troubleshooting-10-22-09-OPT
Learn about SONY T-CON board here:
http://www.mediafire.com/?zzjygannjty PDF download
http://s807.photobucket.com/albums/yy352/budm/SONY/
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.
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