Question about ViewSonic N4280P TV
My TV haven't picture and no sound ,but the led on viewsonic label ,turn blue when power on
There is some missing output voltages from the power supply regulator board to your tv. Normally, these board are replaced as card basis. some of them are repairable too. You have to check this board first, to find whether it is repairable or not. If not replace it as card basis.
Two vies of the power baord to your TV is attached here. This board can be purchased either from the authorised service center for Viewsonic at your town, or from any electronic sparepart selling shops at your town.
Posted on Feb 08, 2012
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Posted on Jan 02, 2017
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