My viewsonic N3751w LCD TV won't receive air signal. It has a built-in digital tunner so it should be able to receive several air signal without a need to have a digital to analog converter
Check that your antenna is sufficient for your location and oriented correctly. Try antennaweb.org for the most likely channels; tvfool.com has a much greater list of channels and the antennas needed to receive them. Both sites assume external antennas and warn that trees and buildings around your location may cause interference.
If you have a splitter connecting one antenna to several TVs, consider using an amplifier to ensure that the TV gets sufficient signal strength. Remember digital TV is has all-or-nothing reception issues.
If you previously could pick up the stations with this TV and suddenly lost them, try resetting your TV. Unplug the unit for at least 10 seconds. Also restore the factory default settings and then rescan for all channels. The reset is possibly Menu, Options, Restore Default or Menu, Setup, Memory Recall. (Viewsonic has changed its menus at intervals so look for something similar). Once you find it, click enter then left or right arrow to YES, hit enter again. Then hit menu twice to exit the OSD menu and then re-enter the menus before trying to rescan channels.
Also check that the TV is looking for OTA and not cable signals. Check that the tuner is still working by retrying the scan in a spot you know that the antenna captures a stations signal. Make sure your antenna cable hasn't been damaged by anything.
If you recently had a power surge (lightning strike) near the antenna or cable, you may be in need of a new tuner. (BTDT with an older TV)
I hope this helps.
Apr 24, 2010 |
ViewSonic N3751W 37 in. LCD Television