20 Most Recent Vizio 42 in. LCD TV Questions & Answers

Back light control board most likely n kinda common

The problem I had with my Vizio was 3 LED light strips went bad and I found a website shopjimmy.com had parts available, so I ordered a set of LED strips in 2015 or 2016 and this 10 yr old tv had been working great since replacing them. SJ has other circuit boards available at cheap prices, and I think that may be your problem. Worth trying.

contact the TV maker yet, ask them?

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. https://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary. Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Hello - The remote control for your Vizio TV probably has a Closed Caption button. Is there a button with CC printed on it? If so, that is most likely the button to press for Closed Captioning.

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. 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. .....

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. 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...

My tv has white lines across all on the screen

Hi
Just try with component input, and see whether it works fine. If it works fine with component input, the tuner section in your TV has got damaged. Soem Vizio sets will have dual tuner; one for analogue and the other for digital. Lighning stroke will damage the tuners first, than any other components inside a TV, because it has been alway connected to cable. Check the component video. If it also does not work, the mother board of your TV is faulty. Some type of fault will be repairable. If the fault is serious, you have to replace its main board istself. OK.

Hi Johnson,

Only 50% chance that the symptoms was caused by a lightning strike because your cable box was powering on fine. Most of the cases when lightning strike near to your area, possible of multiple damaged to the electronic device not only to one particular appliances, most especially if they are plugged into the outlet. Also, fuse will blew because of excessive voltage.

I've suspected that the symptoms was only a co-incidence of lightning strike. If you can hear the clicking of the relay, this is only means that the standby power supply is working fine. However, this board has multiple output voltage feeding the other boards to function well. This kind of symptoms is a power supply related problem.

If you have necessary tools and test instrument and handy with electronics, you can troubleshoot this board to find the faulty parts like open fusible resistors, shorted transistors/IC's, leaky electrolytic capacitor, etc.
Another option is to replace the entire power supply board, this is more convenient if you are going to DIY because no soldering required. Try to find you board HERE. Type the model no. of your unit to the search engine, available parts/board will be display.

Hope I helped you.
Have a nice day!
Thanks for using Fixya.

back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board...

Adding a smart tv just requires adding an ethernet cable to your internet connection to the ethernet port on the set. The smart services on the set us a broadband internet connection to work.

If you do it through a laptop or computer you will need what is called a streaming device. If you tv is new it most likely has an internet connection on it already and just needs to be hooked into your router to make this happen. A very good streaming device is ROKU but there are several out there.

If you are connected to a cable box the CC is being controlled by the remote of the box. Usually there is a hot key on the cable box remote if not you can go into settings and under language turn CC on or off. http://www.cox.com/residential/support/tv/guidedhelp.cox?articleId=5c1b57b0-d6c6-11e1-d920-000000000000 Hope this has helped?

Invertor tube needs replacing.