Vandersteen model 5 battery replacement?

I've been the happy owner of model 5's since the summer of '99. I'm sure that the crossover bias batteries have run down since their lifetime was originally estimated at about 7 years.

I tried to follow the directions in the owner's manual to remove the sub amplifier and crossover board, but I couldn't get the amplifier out. I'm an EE and I've been inside of some very complicated equipment, so I think I can handle this job.

(I really don't want to bother John at Audio Connection with replacing these batteries because he's about an hour and a half drive from my house.)

Has anyone here replaced the batteries? For removing the amplifier, how many screws are there and where are they located? I removed the two readily accessible screws but it didn't release the amplifier.

Thanks for the help,

Dan Kuster