Vizio VT - Answered Questions & Fixed Issues
I have a vizio model vt420m. When I turn it on the
Hi, it seems a main board issue but for better assistance you can contact Vizio technical support using the information shown bellow:
Email:
[email protected]
Tel: (877) 698-4946 Fax: (949) 585-9563
Hours of operation: Monday - Friday: 6 am to 9 pm
Saturday - Sunday: 8 am to 4 pm
Please have your VIZIO model number, serial number, and date of purchase available before you call.
No picture or sound.
Hi, it seems you have a faulty mainboard, but the better and more secure option to avoid spending money unnecessary it's to contact directly to Vizio technical support:
Email:
[email protected]
Tel: (877) 698-4946 Fax: (949) 585-9563
Hours of operation: Monday - Friday: 6 am to 9 pm
Saturday - Sunday: 8 am to 4 pm
Please have your VIZIO model number, serial number, and date of purchase available before you call.
Vizio VT470M no picture, no sound, no backlight. Power supply board looks good all voltages appear correct.
Im having similar problem and with my limited knowledge of lcd tvs and the voltages ALL being good except the pwr on or sw on voltage from the main board to the power supply which tells it to switch everything on Im guessing that something is going wrong on the main board. In the condition where it freezes it (the power on V) which switches everything on i get varied voltages such as 2.5 or 3 or (the normal 5v) and then when nothing powers up (blank screen) i read 0v on pwr on voltage but all my other voltages are corect (24v to inverter, 12 v to main board, 5v, etc.) Im guessing from researching this is that there is in improper voltage somewhere in the main board circuit. I have been unable to find it so i may order another board and post back.
Where can i get a cheap circuit board for my VIZIO VT470M
There is no cheap boards. A particular model or TV will have the same type of board, and cost for it will be almost same to all spare part sites.
Visit the site named 'Electro-help' for more
details. Click this link.
View it in 'Flip
card' option, which can be selected from the drop down box menu by the
[Sidebar] tag, at the top left corner of the display window. It will make search easy. Some times, the ads attached with each
posts, both at the right and bottom, might help you to find the availability of
spare parts. There are more than 850
posts to different brand TVs now.
Service manual
Send your email address to me by Fixya comment, and get a copy of the service manual by return mail.
Vizio lcd flatpanel tv with dark background
If half screen is affected it will be either a board (LCD and Plasma have different names) but in those one board drives each side of the screen unit--worst case is the display panel itself which is fatal from a cost point of view.
5/25/2012 2:56:03 PM •
Vizio VT...
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Answered
on May 25, 2012
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1,124 views
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