Notes won't sound on frets 12-23 (A and D)

[onetimeoneplace]

I play an Ibanez SRX500, and when I try to play notes on the A or D strings on frets 12 through 23, a combination of buzz and a faint 24th fret note sounds. I've tried new strings, but it didn't work.

Is it the truss rod or the fret?

[CPA935]

From that happening to me, I would say truss rod. However, I am no expert.

[onetimeoneplace]

Went through the forums. I think it's the "ski jump" problem.

[CPA935]

That's most likely it.

[frianbisher]

Could be a ski jump, could be a high fret or bad fretwork....maybe your saddles are set too low on those strings. Kinda hard to make a perfect diagnosis without seeing it but those are some things to look for.

[tstone]

As others have said, either way too much neck relief (truss rod too loose), bad fret(s), or a warped "ski-jump" neck. I would check things out in that order.

If you tighten the truss rod, that will lower the action, and you must re-adjust the saddle height screws to a reasonable action height before checking for buzz and dead notes.

[fretlessman71]

Forgive me if I'm being Master Of The Obvious, but you should also make sure that your bridge saddles reflect the radius of the neck (meaning sufficiently higher on the A and D strings). Other than that, I agree with previous posters; tighten (flatten) the neck and raise the action, and see where that gets you.