I have a Vizio model L42HDTV10A. After losing my local channels with Dish Network, I bought and connected a DTV antenna so I could receive my local channels. After I set the TV to scan and program the available over-the-air local channels, it will scan the analog but never attempts to scan the digital channels. I cannot receive my local channels unless the TV will scan and program them. What can be done to make the TV scan the local digital channels?

SOURCE: Vizio L42HDTV10A sound problems

I have had my flat panel vizio L37 for under 2 years. The sound is completely gone - any suggestions? No more warranty unfortunately. HelpME

SOURCE: Vizio 42 in L42HDTV10A no power no lights no nothing

Yeah if you don't have any power at all, no lights or anything its the power supply.

Ginko

• 19396 Answers
• Posted on May 04, 2009

SOURCE: 42" Vizio - no picture no sound

If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |


On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

SOURCE: DTV signal will not come up on start up but after warm up

Was just the DTV card replaced only or the mainboard? Replacing the entire mainboard should do the trick.

SOURCE: No digital signal search

Check your manual to see if it has 2 tuners, digital and analog. If it doesn't have a digital tuner, you will need a converter box.