Twrbkpl; Twrcard - IBM i 830 Repair Manual

TWRBKPL

TWRBKPL: I/O tower PCI card backplane.
The failing item is the Tower Card in a FC 5075 I/O expansion tower.
1. If you are working from the Service Action Log and a card position is listed
with this failing item then that is where the error is located, continue with the
next step in this procedure. Otherwise, record the bus number value, BBBB, in
word 7 of the SRC, see "Breaking Down The SRC" on page 280 for help in
determining the bus number. Search for the bus number in HSM or the System
Configuration Listing to determine which tower contains the failing item.
2. The failing component is built into the backplane of the FC 5075 expansion I/O
tower. Use the table below to determine the service information for the failing
component.
Table 39.
Expansion I/O
Tower
FC 5075
This ends the procedure.

TWRCARD

An SPCN card may be failing. The SPCN card may be part of the AC Module in
some parts of the system expansion.
Note: See "Chapter 4. Removal and Installation Procedures" on page 617 before
exchanging the SPCN.
Perform the following to determine the part number:
1. Is the failing SPCN card in a system unit?
No Yes
↓
v System Base I/O Tower FC 9074, 9079, or 8079-001 – part 24L0926.
v Models 840 processor side – part 04N4552.
v Models 840/SB3 processor side (dual line cord) – part 21P6806.
For location information of the SPCN card refer to "Locations and
Addresses" on page 705.
This ends the procedure.
2. The failing SPCN card is in a secondary expansion unit or base I/O unit.
v For FC 5072 and 5082, the SPCN card is part of the ACMODUL – part
87G6300.
v For FC 5073, 5083, and 9251 Base I/O, the SPCN card is part of the
ACMODUL – part 21H7697.
Chapter 3. Problem Isolation Procedures (PIPs), Failing Items, and Symbolic FRU Isolation
Name of FRU FRU Position
to Exchange
Tower Card CB1
Symbolic FRUs
Link to Link to Failing
Location Component Service
Diagram Information. (CCIN, PN,
Removal and Installation
Procedure)
"Locations — Table 45 on page 741
FC 5075 I/O
Tower" on
page 740
601