radel dhruva cd deluxe sruthi box

[CHELLAM]

can someone pl explain how to use this sruthi box
I lost the manual
this is a pretty basic sruthi box with just SA AND pa

There are two buttons one for SA and one for PA
there are 2 dials for PA for FINE TUNE AND COARSE setting
there are 2 dials for SA for FINE TUNE AND COARSE setting

I don't think this can be set for madhyama sruthi?

thanking in advance

[vamsipet]

If possible please send the image to vamsi05@yahoo.com

I have radel shruti box, but not sure about the model?