korg dtr 2000

[talk]

Hey everyone,

I am trying to fix a korg dtr 2000. It powers up and signal will pass from guitar to amp fine but the tuner will not work whatsoever. Does anyone have experience with this?

Thanks for any help you can give me.

talk

[Jazz P Bass]

That whole 'tuner' section appears to be controlled by a microprocessor.
To be in 'tuner' mode a switch must be selected.
Maybe the switch does not work.
There is a Test mode.
"DTR-2000
How to start the test mode
[CHROMATIC] + [DISPLAY/SOUND] & [POWER ON]
NOTE:
Do NOT insert any plug into the MUTE and INPUT SELECT terminals
while starting the test mode."