If I remember correctly, holding down keys C#3, D#3 and C#4 and then switching on, provides a whole series of test pages.
However, if your KN7000 is totally 'dead' then even this may not work and still require a visit to the KN doctor.....
Note : C1 is the lowest key on your KN7000.
Also posted by Alec about a year ago, in response to a query from rikkisbears..........
see :
http://www.synthzone.com/ubbs/Forum25/HTML/002383.html Try a factory reset - hold down 8&16, Rock, Ballad and Jazz buttons and switch on. Do this first
There are some others tests to try:
take out any EW boards.
1. hold down keys D3 and D4, switch on, anything in screen? then switch off.
Wait a few seconds.
2. repeat with keys E3 and E4 - press auto sweep.
3. repeat with F3 and F4 - press demo then panel set for left/right led check.
4. repeat with G3 and G4 - lcd test
5. repeat with A3 and A4 - ok confirmation
6. repeat with B3 and B4 - press test with blank floppy in drive.
if this does not work get in touch and I'll send you some special self extractors to try re-installing the o/s.
at least then you'll know if it is the hardware.
No responsibility is accepted for anyone else who chooses to play around with the above.
good luck!------------------
Willum