Mark Levinson No. 36 DAC,,,NEED HELP


i have the Mark Levinson No. 36 D/A Converter, but it not working,
"NO CODE" is displayed upon power-up. how to repair it? thanks!
jc126
You didn't give enough information. Is it displaying the code with a  transport? I would try another transport. If the code is displayed without a transport plugged in, then you have to give Harmon or Pyramid Audio a call if the owner's manual does not indicate what that code means. 
Good thinking  gs5556, could just be a bad transport sync. Try different  transports hooked up.

Cheers George
gs5556
when it  power-up just show  "NO CODE" on the screen, and all the button not working. 
someone said it is locked.
It maybe locked if you don't have a good transport attached? 
Cheers George