IBM i 830, Repair Manual

Page: 609 / 1000

15. Are there any other systems connected to the loop?
Yes No
↓
Go to step 18 of this procedure.
16. There may be more than one frame on the loop with the frame ID that you
are working with. Determine if there is more than one frame on the loop that
has the frame ID you are working with. Perform “Bus PIP HSL-07” on
page 306. Then return here and continue with the next step of this procedure.
17. Is there another frame on the loop with the same frame ID that you are
working with?
No Yes
↓
There is not enough information in the SRC to determine which of the
frames with the same ID is having the CRC errors. Perform the
following steps, beginning with step 18 for all the frames on the loop
that have the frame ID you are working with.
18. The cable that you are exchanging is having CRC errors at the end identified
by the frame ID and HSL port label that you determined in this procedure or
from the SAL entry. Perform “Bus PIP HSL-08” on page 307 to determine the
frame ID and HSL port label of the other end of the cable that you will be
exchanging and return here. You will be completing the “Appendix I. HSL
Cable Location Form” on page 971.
19. Is the HSL cable optical?
Yes No
↓
Examine the screws holding the connector at the end of the cable that
was identified in the SRC or the first cable location listed in the SAL
entry. It is possible to get CRC errors when the screws are not tight.
You can choose to tighten the cable connector screws without
exchanging the cable
ONLY if they are loose, otherwise exchange the
cable. When exchanging the cable, use the information provided in the
FRU Positions and Failing Components table for the frame type to
which the cable is connected. Go to step 21 of this procedure.
20. It is possible the optical connections need cleaning. You can choose to clean
the cable connections at each end without exchanging the cable. Use
“OPT_CLN” on page 561 for information on cleaning the connections. If you
choose to exchange the HSL cable that you have identified, use the
information provided in the FRU Positions and Failing Components table for
the frame type to which the cable is connected.
21.
To exchange an HSL cable follow the references below to the frame type that
the cable is connected to at the
″
From Frame ID
″
end:
v
For Model 830, see Table 41 on page 710.
v
For Model 840, see Table 42 on page 720.
v
For FC 9079, see Table 43 on page 725.
v
For FC 5074, see Table 44 on page 737.
v
For FC 5075, see Table 45 on page 741.
v
For FC 5078, see Table 46 on page 744.
v
For the xSeries, see Table 47 on page 749.
This ends the procedure.
SLOTERR
SLOTERR: card slot control hardware detected an error.
Symbolic FRUs
Chapter 3. Problem Isolation Procedures (PIPs), Failing Items, and Symbolic FRU Isolation
595