Up untill a few years ago they used to make a lot of universals with a "learning" function, that you aim the thing at a certain device untill it figures out the right code for it. I read that the technology was bought since so you dont see those quite as often in the market.
ok, if yours is a learning uni, here's a tutorial on how to fix it, in general terms since it varies between remotes:
If you cannot get the instructions - most "universal" remotes
have a "code search" feature.
Usually this involves hitting the "program", "select" or
"function" button, then pressing the device button ("TV", "VCR",
"AUX") then repeatedly pressing the "power" or "channel up"
button until the set responds.
The remote will cycle through each of the codes (01, 02, 03, 04)
sending the "power" command for each. When you hit the right code
- the set responds.
When the set responds, stop and then press the "program" or
"function" button to enter it (which button varies between
If you count the number of presses - that should be the code (12
presses is "12" or "012" - or it could be 11 if the codes start
If you do not have a "program" button (it might be hidden), then
you may have to instead hold the function (TV, VCR, Cable) button
down for a few seconds (until the light blinks).
The usual manual sequence is: 0 1 2
It might also be: 0 1 2
If no program button: 0 1 2
Some remotes use a two digit code, some use three.
It'll take quite a bit of trial and error without the manual.
you can try getting the codes from the manufacturer, go to their site and see if you can figure anything out there...