Greetings!
  I just got hold of an old KMD GV-60D amp.

  Everything works fine, but I want to go through it to check that everything is in as good of shape as it seems, but I'm having a problem.

  I can't get the chassis out of the cabinet!

  The KMD chassis is held to the cabinet with 2 braces, each of which has 2 bolts. I took those off, along with 2 small wood screws that held tabs down.

  I took the knobs, etc., off the front.

  The chassis won't budge!

  I can't see anything - ANYTHING - else that would need to be removed in order to remove the chassis, but it just WON'T move!

  Is there anyone who can tell me what I'm missing here?

  Thanks!