HP 330 Service Information Manual page 52

Processor Board
Preliminary Requirements
Turn the computer off and rernove these assemblies:
1. Power cord.
2. System bus (if present).
Procedures
1. Leverage the processor board out with its board ejectors.
2. Remove the processor board.
3. To install the processor board, reverse steps 1, 2 and 3.
Video Boards
Large video boards are usually in the top system slot. DIO video cards are in the DIO slots.
Preliminary Requirements
1. Turn the unit off.
2. Remove the power cord.
Procedures
1. Disconnect the video cables from the video board.
2. Using a #1 pozidriv or your finger tips, unscrew the two captive screws holding the video
board in its system slot.
3. Remove the video board.
4. To install the video board, reverse steps 1, 2, and 3.
Interface Cards
These procedures apply to graphics display station or system interface boards in a system slot
and I/O cards in a DIO slot.
Preliminary Requirements
1. Turn the unit off.
2. Remove the power cord.
Procedures
1. Disconnect the cables from the interface, except for the system interface board with high-
speed disc add-on and HP-IB cable attached.
2. Unscrew the two captive thumbscrews holding the interface in the slot.
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Assembly Replacement