Ok, that's is a big help....and also tells me about the "age" that radio is.
In my previous post I mentioned several different PLL "numbers" and you gave me one that tends to date the year to after 2000 but before 2014 - now they just have "Cobra 25 or KEIC 25 " on them which means another supplier is making the PLL chips.
So you're in luck, we may have a schematic or two for it...at CB Tricks...
Go here...
http://www.cbtricks.com/radios/cobra/index.htm
Look thru that list - there are several "variants" of the 25, one I call "hodgepodge" which is because of the way it looks to me... they lay out the board with things not just row and column - but diagonal and turnsy (no flames please) meaning helter-skelter. They got better at it in revisions and then another came in that has KEPC -XXX silkscreening on the board and uses more organized as row and column design and the foil side of the board is more "squared" and right-angled versus hand drawn in the etching.
So there are several different LTD's models out there - so to narrow down even further - look for the audio chip there are two types one like a flat SIPP - is it a long flat package of 10 pins bolted to the side with all the pins soldered along the edge of the board - or is It a small tabbed "looks like a TO-220" device bolted to the side with 5 pins soldered into the board extending out from it.
In any case, its' the best we can do to get you started in the right direction - find a schematic and layout that most matches' the silk-screening parts and their values - then work with that to help you get it fixed.
We'll be here to help you sort it all out...look thru all the 25's at the site, there may be a voltage chart or two for you to use from these - even in GTL models - that are pretty much the same except for the front panel looks and their GOD-forsaken ST NW WX LTD GTL II VI - which when you look at how Cobra modified 51 different models, 6 different platforms and seems to me that they make these in batches of 500 or so and putting it all together makes me LIVID about this - in the first place...if you lived in Rome - you'd be HOME...