Locate the Reset button near to the power button.If you do not see go to the Menu scroll untill you see reset all things.
God bless you
Try first if you have not to remove set and any cable or sat box from power, a box etc can cause this--when you plug back the units will try to reboot, cannot hurt and may help.
SOURCE: Digital channel mix up
your cable company is moving the channels around. they are doing a major upgrade
SOURCE: I have retuned my parents tv but now the digital
It sounds like the TV has re-mapped the channels incorrectly. You possibly can contact Toshiba to see if there is a firmware/software upgrade that will fix this issue. If there is you may be able to download the software off of their website and install yourself. Just make sure if that is the case follow the directions carefully. Please take a few moments to rate my answer. Thanks..
Testimonial: "Thanks - will give it a try"
SOURCE: i have a toshiba 37 wlt 58 lcd tv . i watched the
Sections of the power supply may have gone out, or it detects short circuits in the backlight inverter board or in the power supply itself.
Those are the two areas you need to check. Look fo bad caps with leaking/bulging top fist in the power supply.
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
SOURCE: no video signal shows up when i turn on tv. i hear
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
SOURCE: My Toshiba flat screen is not picking up the local digital channels
As an past Radio Engineer I feel compelled to tell you that the conversion to HD in FM and TV signals did not do all of us a favor.
The coverage pattern of stations has decreased to the level of about 70% due to this new advanced technology. I think what your real problem is comes from a misunderstanding of what a HD TV signal must be supplied from. In my house as an example which is 21 mikes away from Chicago and the Willis building where a lot of TV signals are from, the need to put up a new higher gain $100 HD TV antenna was required. You can get such antennas from Antennadirect web site. You will also require a length of high grade 75 ohm coax cable- I bought the high grade Digital TV cable from Gepco International with a 3 GHz bandwidth and also distribute the signal to a number of TV's either with a Wineguard or Blonder-****** distribution amplifier.
My antenna is mounted near 30 feet off the ground. Places like Radio Shack may sell these kinds of indoor TV antennas but they are depending on the lack of knowledge of the people buying them to sell the product. It also depends on how far you are from the source of transmission. If you are 5 miles in a high rise building facing the transmission tower, you might have luck with an indoor antenna, if you are 20 or 30 miles away from transmission you might have to go to more elaborate measures to get a signal down to the TV. There is no magic to it just a need for a person who understands the signal levels and what is needed. I spent time as a Chief Engineer for 4 Radio stations in Chicago as well as was involved in a FM HD installation or two.
See if you can find a Television shop that you can ask questions about your installation. They may be able to help you mount a roof antenna if you can not do it yourself.
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