RCA Rca t25001gy "Tamper proof" locked

[Bedin]

Hello..I have an old RCA Rca t25001gy television.I've lost the
manual.
Somehow or other I got the "tamper proof" mode locked.. I can't
unlock it...
I've tried unplugging the set for a time, and fresh batteries in the
remote.

Any ideas as to how I can unlock this"Tamper" mode... THe light on the
TV for the mode just blinks..

THanks

Herb

 

[Art]

Probably will require an original remote and proper keypress or a specific
routine of keypress on the control buttons of the tele. I'm sure one of the
other posters will come up with a definitive response.