Discussion about the Korg PolySix synthesizer

Ok. So I got this Polysix that seemed frozen. The two middle program 
LEDs were lit (4 and 5 i think). No synth control via the front panel.
MG would oscillate into supersonic frequencies all upon power up.
Solution: SW1 was in "test" mode.
Now you know.
Just as well, because I couldn't seem to get any really good sounds 
out of it. Does the sustain and release parts of the ADSR work like a 
Roland? Because they seemed to now affect the envelope too much. 
Also, I had to do I kind of reset for the MG not to modulate so much.
Is it still broke then?