Instruction Manual

56 MAINTENANCE

Except for fuse replacement, the 507 should require no maintenance.

Replacing the Fuse

A pair of fuses are mounted in the power entry module. To replace fuses, follow the

instructions given below:

1. Unplug the 507 from power source and remove power cord

from the back panel.

2. Remove the fuse holder by pushing down on the center tab

and pulling out.

3. Remove the faulty fuse and replace with one of a similar

rating.

4. Reinstall the fuse holder.

5. Reattach the power cord.