Reference Code Description/Action Perform all actions before exchanging Failing Items Failing Item
1910 Power Supply PP1 fault/AC loss
If the Power Supply PP1 powers on normally or stays powered on after AC
power failure, no replacement of parts may be needed.
PWRSPLY
TWRCARD
1911 Power Supply PP1 fault PWRSPLY
TWRCARD
1912 Power Supply PP1 Communication fault PWRSPLY
TWRCARD
1913 Power Supply PP1 fault PWRSPLY
TWRCARD
1920 Power Supply PP2 fault/AC loss
If the Power Supply PP2 powers on normally or stays powered on after AC
power failure, no replacement of parts may be needed.
PWRSPLY
TWRCARD
1921 Power Supply PP2 fault PWRSPLY
TWRCARD
1922 Power Supply PP2 Communication fault PWRSPLY
TWRCARD
1923 Power Supply PP2 fault PWRSPLY
TWRCARD
1A00 CPM Regulator Load Fault PWRSPLY
TWRCARD
1A10 CPM Regulator PP1 Fault PWRSPLY
TWRCARD
1A20 CPM Regulator PP2 Fault PWRSPLY
TWRCARD
1B01 Load fault on the +12V bus
An isolation procedure is required for identifying which load is at fault.
PWROC
TWRCARD
1B02 Load fault on the +5V bus
An isolation procedure is required for identifying which load is at fault.
PWROC
TWRCARD
1B03 Load fault on the +3.3V bus
An isolation procedure is required for identifying which load is at fault.
PWROC
TWRCARD
1B04 Load fault on the -12V bus
An isolation procedure is required for identifying which load is at fault.
PWROC
TWRCARD
1B05 Load fault on the +1.8V bus
An isolation procedure is required for identifying which load is at fault.
PWROC
TWRCARD
1B06 to 1B07 Load fault on the +2.5V bus
An isolation procedure is required for identifying which load is at fault.
PWROC
TWRCARD
1B09 CPM Regulator Load Fault PWROC
TWRCARD
1C01 Load fault on the +12V bus
An isolation procedure is required for identifying which load is at fault.
PWROC
TWRCARD
1C03 Load fault on the +3.3V bus
An isolation procedure is required for identifying which load is at fault.
PWROC
TWRCARD
1xxx
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iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1
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