IBM RT PC 10 Hardware Maintenance And Service page 154

Service Repair Action Number Chart
The following pages contain reference information. This chart is in
numerical sequence followed by alphabetical sequence.
lOx
FRU: System Board
Additional Tests: None
Removal Procedure: See "System Board Removal" on page 4-42.
Repair Checkout: Run the System Checkout.
12x
FRU: 1MB Memory Expansion Option
Additional Tests: None
Removal Procedure: See "Processor, Floating-Point, or System
Memory Removal" on page 4-14.
Repair Checkout: Run the System Checkout.
15x
FRU: 2MB Memory Expansion Option
Additional Tests: None
Removal Procedure: See "Processor, Floating-Point, or System
Memory Removal" on page 4-14.
Repair Checkout: Run the System Checkout.
Problem Isolation Charts 3-109