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Norcent LT2030 LCD TV    
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Ming
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PostPosted: Wed Jul 09, 2008 11:04 am    Post subject: Norcent LT2030 LCD TV Reply with quote

Norcent LT2030 LCD TV. IT was initially the main fuse dead. I change it and it can work again control are all Ok but no picture and any diplay on the screen. It is abright screen
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Gabe
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PostPosted: Wed Jul 09, 2008 11:04 am    Post subject: Reply with quote

Ming , the 2 Norcent I have worked on were in fact made by LG.
Hoping yours is also made by LG.
If you have a bright display it is sign that the neons are on, thus the ballast is ok.

you don't have pic but do you have OSD ??
Ming
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PostPosted: Wed Jul 09, 2008 11:05 am    Post subject: Reply with quote

no. picture, no any display but only the bright screen, with not thing on it.
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PostPosted: Wed Jul 09, 2008 11:05 am    Post subject: Reply with quote

You probably have a bad LCD Drive circuit board. Try unplugging the LVDS
cable while watching the screen. If no change, your LCD Drive (sometimes
called T-Con) circuit is bad. Many manufacturer's only supply this as part
of the LCD Panel Assembly. I don't know specifics about Norcent, as I have
not worked on their TVs, but I work on a lot of LCD TVs in general, and this
has proven to be a reliable troubleshooting technique for me.
Irvin
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PostPosted: Wed Jul 09, 2008 11:06 am    Post subject: Reply with quote

You may have a defective inverter board try checking 24volt line going to
that panel also your power supply might not be fully operational
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