The screen on my Magnavox model 42mf439b/f7 will only display a white screen. What would I need to fix this problem?

Chances are your main board is bad and needs replacing

Similar model Phillips tv made by foreign manufacturer for both Phillips and Magnavox may help you. Apparently very similar tv sets, so manual should be of assistance to you, although phone contact is for Phillips and not Magnavox.

With a Cable company box connected, that company may provide internet service to you if that is what you paid for.

https://www.download.p4c.philips.com/files/4/42pfl3704d_f7/42pfl3704d_f7_dfu_aen.pdf

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Short circuited component/s at its main board. Contact any service technician; or the authorized service center. This is not a user repairable fault. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Check these codes. 0062 0004 0009 0456 0183 0226 0288 0008 0068 0075 0141

004/ 008/ 009/ 062/ 068/ 069/ 074/ 075/ 076/ 077/ 089/ 133/ 163/ 165

Set need through check up. It sounds that the digital processor board also need service.

Hello
This DVD player has no front panel display. Its front panel have ony two LED light indications, out of which, one is for power On indication and the other for p-scan [Progressive Scan] which will ight up when you select Progressive Scan function.
There are three push button switches, for Open/Close, Play & Stop.
It has only ON-Screen display system, which will be active only after connection the DVD player to tV. OK.
http://www.dataentryjobs.us/67948.html

It is wall mountable with a VESA Mount: 400 x 200 mm according to the installation guide (600 x 200 mm in the specs). The depth without stand is not given; other Magnovox TFT LCD televisions are about 5-6" in depth (4.9" for the 42MF439B/F7 )

A compatible wall mount is here: http://amazon.skakawack.com/Silver-Tilting-Wall-Mount-Bracket-for/M/B0019D4K6M.htm?traffic_src=froogle&utm_medium=organic&utm_source=froogle .

I hope this helps.

Cindy Wells

I have the same tv with the same problem. Previously to resolve the issue I have left the system unplugged from the power overnight, however that did not fix my issue this time. Have you discovered a resolution to your problem yet?

They are pretty much the same and are made under licence by Funai probably in China