IBM i 830 Repair Manual page 74

Reference Code Tables
2. For SRCs appearing on the control panel, the first 4 characters represent the
Figure 6. System Unit Control Panel layout
3. You will be directed to find the appropriate SRC table for your SRC.
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iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1
SRC type and the second 4 characters represent the URC. For SRCs appearing
in the Product Activity Log or on other software displays, use characters 1
through 4 of word 1 for the SRC type and characters 5 through 8 of word 1 for
the URC. See Figure 6 for the Control Panel layout.
a. Determine which SRC table to use.
The SRC table name is the same as the SRC type. The tables in this section
are arranged in hexadecimal sequence.
The reference code tables only support 8 character SRC formats. If the SRC
provided is in a 4 character format, contact your next level of support for
assistance.
b. Determine the URC (Unit Reference Code).
The URCs are listed within the SRC tables. The URCs are arranged in
hexadecimal sequence, with numeric characters listed before alphabetic
characters. For example, URCs 0001 through 0009 are listed before URCs
000A through 000F.
For additional information about using the Control Panel, see "SRC Address
Formats" on page 936
To correct the problem, perform the action indicated for the URC in the
Description/Action column of the table. If this does not correct the problem,
exchange the failing items or parts listed in Failing Item column in the order
that they are listed.