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Shahid, Technician
Category: Electronics
Satisfied Customers: 12690
Experience:  I have been repairing electronic gear since 1993 as a qualified Sony tech
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Panasonic tv TX-L26X10B has switched to channel 8 ( invalid

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Panasonic tv TX-L26X10B has switched to channel 8 ( invalid channel) Press any button on the remote reverts to channel 8 or 88 or 888. Changed batteries on the remote. - no effect. Use TV buttons same response. Is this terminal?
Hello, my name is***** be happy to assist you.
Please allow me to ask you a few questions to diagnose the problem.
- Have you tried to unplug TV and cable box power cords from wall outlet for 10 minutes to reset, replug back in and check?
If not yet, can you try it now and reply back with the result?
Customer: replied 3 years ago.

Hi Shahid

Turned it off. Turned on again channel 1 came up OK. Pressed 2 on the remote and went to channel 8 (invalid channel).


Hi John,
I hope you have tried unplug TV from power socket but it didn't help.
Does menu screen come up if press menu button on TV or its remote control?
Customer: replied 3 years ago.

Press menu button and channel 8 comes up. Press several times menu appears but cannot change anything. If you try menu disappears.

Thanks for the info, have you tried to press menu button on TV itself?
Customer: replied 3 years ago.

Tried the function button. Just got a all DVB channels. banner across the bottom of the screen saying CHANNEL 8. If I press the up or down buttons on the TV I can change stations but it reverts to channel 8 in less than 10 seconds. I f I press the button twice I get channel 6 and it reverts to channel 88.

Turned it off again. Turned on channel 1 comes on for about 5 seconds then switches to invalid channel 8.

Initially I was just watching a programme and the TV switched to channel 8

Customer: replied 3 years ago.

Whatever button, I press 8 comes. The more times I press, the more eights I get.

If we could get menu on TV then need to go to Setup > System Menu and select Shipping Condition to reset the TV to default settings (like just out of box) which might help to resolve the problem.
And if TV doesn't allow to navigate in menu for reset then I'm afraid it is main processor chip internal failure and main board of TV will need to be replaced to resolve the problem. Required main board would be available at following supplier links for 36 to 60 Pounds..
Local TV repair shop will do this work for you if you are not comfortable working on it yourself. I trust my input will help you out. Please feel free to respond if you have any additional questions.
A positive rating to answer would be greatly appreciated, please click on smiley face/star on this page then click submit/finish button so I can get credit on website for my work.
Shahid and other Electronics Specialists are ready to help you
Customer: replied 3 years ago.

Thanks anything like that is beyond my competence. I will get a new TV.



Customer: replied 3 years ago.

I have bought a new TV

Nice, I hope you would be enjoying TV shows.
Have nice time!