Πρεπει η κιθαρα να εχει καποιον απο τους προενισχυτες (AEQ200T, AEQ200MT, AEQ202T)
Tuner functions
TUNER ON/OFF SWITCH
(SST, SRTn, SRTc, SPT, SPTII, Ibanez Onboard Tuner)
Power is turned on or off by each press of this switch.The tuner will turn off automatically after 5 minutes. (You can turn this on even if acable is not connected.)
(AEQ210T)
Pressing this button will alternately turn the tuning meter ON/OFF.
The tuning meter will not turn off automatically, so when you have
finished tuning, you should press the "TUNER" switch once again to
turn off the tuner. (You can turn this on even if a cable is not connected.)
( AEQ200T, AEQ200MT, AEQ202T)
Pressing this button will alternately turn the tuning meter on/off. It can
be turned on only if a guitar cable is plugged into the guitar jack. The
tuning meter will not turn off automatically, so when you've finished
tuning, you should press the "TUNER" switch once again to turn off
the tuner.
While the tuner is operating, the output will be muted; no sound will be
produced from the guitar's output jack.
A protection circuit will operate immediately after the power is turned
on, so the tuner may not respond to a softly played note. Play the first
note aggressively in order to activate the tuner.
http://www.Ibanez.co.jp/world/manual/guitars/AG_2010.pdf