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When I turn the TV on, it will cycle through all the inputs and not stop. I took the batteries out of the remote and unplugged the TV overnight and nothing helped. When I go to the Menu screen, it will cycle down to the bottom choice, as if I am holding the down button. Any help would be appreciated. Thanks.
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If you do not have an input button on the TV then you need to get a remote. I have owned a lot of toshibas. Use the channel down button on the tv and keep hitting it untill you get down to the last channel. after that it should start cycling thru you inputs. Good luck to you.
Yes , this sounds like the EPROM IC is failing or the crystal that keeps the frequency on the IC needs to be replaced , or even the buttons on the tv could be warped by the heat of the tv( if it is the buttons , then removing the control board from the plastic buttons will stop the random cycle and may make it so you can turn on the tv , but if not then it is the EPROM IC or crystal)
to check and see if the chip is messing up , hold down the menu button on the tv or vol up down and see if it stops cycling thru the video inputs
this is the same type of problem happening with other rca models and I know it is the EPROM CHIP but why this is failing is either because of design flaw , dirty enviroment that they were made in , to much voltage or current to the chip or too much of a draw from the chip causing it to fail . Or even a random frequency from the IR sensor or its circut I'm still investigating and testing.
leave the tv unplugged for at least 3 weeks durring this time resolder any solder that don't look good , I did this and it lasted for about 6 months(always plugged in to the wall) before it started doing it again. model # 27v412t
If tuner channels keep cycling,why not by-pass the problem?
Use audio / video inputs as source from box or VCR tuner....
Saves money every time !.............................T.
Had the same problem with the Mitsubishi ws 48511 model. A solution posted in FixYa worked great and might be worth trying as they have very similar electronics and panels -- did you check to make sure that one of the front panel buttons isn't stuck in the depressed postition? For me, the device menu kept cycling and remote wouldn't work. Sure enough, the button was stuck pushed in. It was hard to even notice, but took little effort to get it free. Good luck.
the tactile switches on the control panel cause this problem . they could'be stuck or have some kind of contamination like liquid. or just bad . cost to repair aroud 60.00 dls if this helps please let me know
Thanks! TV works fine now.
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