Replaceable Assemblies - HP 9030 Service Manual

Assembly Access
4-5
Replaceable Assemblies
The following procedures describe the removal of replaceable assemblies. The reassembly proce-
dures are the reverse of the removal procedures. If specific procedures are required for reassembly
they are provided.
The computer is in a System II enclosure (HP 9030) or a stand-alone cabinet (HP 9040). The
procedures apply to both models with exceptions noted.
Note
References to top, bottom, right side, and left side covers are to the
System II enclosure covers. Orientation is for a
HP
9030 as viewed from
the front (service panel end). When servicing a
HP
9040, mounted in
the stand-alone cabinet, realize that the System II enclosure is rotated
90 degrees counterclockwise. For example, a reference to a top cover
actually refers to the left side cover of the cabinet-mounted
HP
9040.
A list of the assemblies that have replacement procedures in this chapter follows:
• 110
Cards • Service Panel Board
• System Control Module • Service Panel Cable
• Power Supply Assembly • Processor Stack Fan
• Processor Stack Finstrates • Power Supply Fan
• Processor Stack Clock Board • 110 Fan
• Processor Stack Motherboard
• Processor Stack Fan Cable
• Ac Power Cord
• Power Supply and I/O Fan Cable
• Line Filter
• 110
Backplane
• Power Switch
• Motherboard
• Power Supply Cable • lOP Cable
See the exploded view drawings in Chapter 5 when performing the following procedures.
110 Cards
1.
SET THE POWER SWITCH ON THE REAR PANEL TO THE "0" POSITION AND DIS-
CONNECT THE AC POWER CORD FROM THE WALL OUTLET.
2. Open
110
door on rear panel by turning both thumbscrews counterclockwise.
3. Disconnect
110
cable connector from
110
card to be replaced.
CAUTION
CAREFULLY HANDLE I/O CARD TO PREVENT DAMAGE TO
CARD FROM ELECTROSTATIC DISCHARGE OR OTHER CAUSES.
HOLD BY EJECTORS OR SIDE EDGES ONLY. DO NOT TOUCH
EDGE CONNECTORS OR CARD PLANES. IMMEDIATELY PLACE
CARD IN ANTISTATIC BAG OR ON ANTISTATIC SURFACE.