HP 330 Service Information Manual page 51

Fuse
Preliminary Requirements
1. Turn the unit off.
2. Remove the power cord.
Procedures
1.
Using a flat-tip screwdriver, press in on the fuse cap and rotate it counter-clockwise about
1/4
turn. The fuse should pop out a little.
2. Pull out the fuse cap containing the fuse.
3. Remove the fuse from the fuse cap and replace it.
4. Reverse steps 1 through 3 to install the fuse.
HP-HIL Devices
Preliminary Requirements
1. Turn the unit off.
2. Remove the power cord.
Procedures
1.
Disconnect the HP-HIL cable from the system interface board.
2. Remove the HP-HIL device from the other end of the HP-HIL cable.
3. To install an HP-HIL device, reverse steps 1 and 2.
System Bus
Preliminary Requirements
1.
Turn the computer off.
2. Remove the power cord.
Procedure
1.
Loosen the two (or more) captive thumbscrews holding the system bus to the rear panel,
until the thumbscrews pop up.
2. Pull the system bus straight out by its handle, removing the system bus from the processor
and RAM boards.
3. To install the system bus, reverse Steps 1 and 2.
Assembly Replacement
35