UndefinedWhy does my Korg CA2 needle keep switching from flat to sharp when I turn my harp? I can't tell which way to tune.

hello sir,
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thanks from: SHAAD GONDEKAR

if it's the old analog version, there should be a tuning knob in the group of controls on the left hand side by the drawbars.

I had an old organ/keyboard repair man tell me 95% of his repairs were diodes over 10 years old. Everything else was switches, capacitors & transformers. Hope that helps.

To adjust the intonation on a guitar you need the following. ..
a electronic tuner
and a small philip screwdriver

when you tune a string say low E you play the note open and adjust tell it's in tune
then to intonate play the low E at the 12th fret
producing a Harmonic, view the tuner it will be sharp or flat,
turn the small philip screw on the bridge adjustment
it only takes a small turn one way or the other so go slow
once the string is tuned at the harmonic note check to see if it's in tune played open, keep tuning and adjusting tell the strings are in tune open and at the 12th fret on all six strings
once intonation is set properly the guitar will sound better
really hope that helps?

Did you try to get to Global mode, and then check if the tune is 440 hz?
Check the Global Settings. The tuning might either be altered or the key transposed..

"sounds flat" ... What are you comparing this to? Pianos at that range are sharped due to stretch tuning so this would appear flat compared to the piano. Use a Korg or other brand tuner to verify. If it is flat, my educated guess is there is a crack in it. Dip it in a vegetable dye water mixture and usually cracks will show up. This is almost like Magnafluxing they use in the aircraft industry. These are likely made of aluminum and repair if cracked would be hard... one could try to have it welded and then filed down to tune it. I have done this with sleigh bells on a pipe organ, but those were brass.

You turn it on and there are the two buttons under the power on button. These ratchet the base frequency up and down. In the upper left corner of the display you will see what A is currently tuned to in tiny characters.

I can't find info other than the tuner has three lights for flat on, and sharp.

given that you would plug it in and do a close tune of the guitar by ear.

Then you would strum one string at a time and tweek the peg tighter if it shows flat, looser if it shows sharp, until it shows the light right on.

I would recommend you get a book on guitars to learn how to tune and also check the setup of the guitar.

Also I would recommend you get a Korg tuner... they are about $20 from online sources and they are much easier to use.

I would be tempted to try spraying CRC226 into the harmonica. It is available at Home Depot in the electrical department, usually near the electrical tape in a blue can about $2.70. It is plastic safe and is a water displacer and a very LIGHT lubricator. If there is crud in there it may dislodge it. It also is good at preventing rust and freeing rusty pliers, etc.

well i hope you've figured it out by now, it's a really cool looking tuner and i love it. but if you are still having problems...
the switch on the left side: OFF, ON, LMP (ON with a little light so you can see in the dark)
The number and letters you see across the top of the interface indicate which string it is tuning to. 6E is the low E string (the thickest one) and 1E is the high E string (the thin one on the bottom of the guitar), i've seen many people get confused when they've tuned those two.
You can leave the tuner in auto and it will pick up what string you are trying to tune. but if you are having problems getting the correct string or whatever the case is, you can switch to manual mode. click the only button on the tuner and the specific string will light up on the interface.
If you press and hold the button, the tuner will go into flat mode, tuning all the strings flat.
once you have the right string and you're tuning it in, you want the needle to be centered.
that's pretty much it. enjoy!