Service manual

Chapter 6, "Illustrated Parts Catalog," provides an illustrated reference for
COMPAQ PORTABLE II Personal Computer spare parts.
Chapter 7, "Removal and Replacement Procedures," describes how to remove and
replace field replaceable subassemblies.
Chapter 8, "Jumper Settings, Switch Settings, and Adjustments," provides
detailed information for setting jumpers and switches and performing monitor
adjustments.
Tools and Supplies
The following tools and supplies are required to service the COMPAQ PORTABLE
II Personal Computer:
o Torx screwdrivers, sizes T-15 and T-10
o Slotted blade screwdriver, 1/4 inch
o Needlenosed pliers
o 25 pin printer loopback plug
o 25 pin serial loopback plug
o 9 pin serial loopback plug
o DIAGNOSTICS diskette
o Formatted diskette
Optional Tools
o Memory chip insertion tool
o Memory chip removal tool
o Diskette drive signal extension cable (PN 100546-001)
o Diskette drive power extension cable (PN 100545-001)
o Socket/Torx tool kit (PN 101089-001)
- Torx screwdrivers, sizes T-15 and T-10
- Adjustable socket tool with hex sockets and one Torx socket (T-10)
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CAUTION
Only trained technicians should attempt to repair this equipment. All
troubleshooting and repair procedures are detailed to allow
subassembly/module level repair only.
Because of the complexity of the individual boards and subassemblies, no one
should attempt to make repairs at the component level or make modifications
to any printed wiring board. Improper repairs may create a safety hazard.
Indications of component replacement or printed wiring board modifications
may void any warranty or exchange allowances.
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Additional Reference Information
The following support documentation is available for the COMPAQ PORTABLE II