IBM Application System/400 Service Information page 40

6343
(6343) Tape Unit Reference Codes
The system has detected a 6343
1/4
inch tape unit error. This is the external tape unit attached to the
system.
See the tape unit documentation for all tape unit part numbers. All references to systems other than the
one you are working on, should be ignored.
If an IPL type D mode M was being performed, perform the following:
1
Clean the recording head in the tape unit. Use the correct IBM Cleaning Cartridge Kit:
• In Canada and the United States, use part 46G2675.
• In all other countries, use part 8191177.
2
Load the first tape of the latest set of SAVSYS tapes, SAVSTG tapes, or the first IBM Software
Distribution tape.
3
Start an IPL type D mode M from the system unit control panel. (See "Selecting IPL and Mode" on
page 5-2.)
4
Does the IPL complete successfully?
Yes This ends the procedure.
No Obtain another copy of the tape. Repeat steps 2 and 3 using the new tape. If the problem
...,' J
continues, continue with step 5.
5
Look at the 4 rightmost characters of the Data display for function 11-2. These 4 characters are
the unit reference code.
6
Find the unit reference code in the following table.
Note: If the failing item is a failing item (FI) code, go to "Failing Item (FI) Code Table" on page 2-55 to
determine which part number associated with the FI code is failing. If the failing item is not an FI code, go
to the failing item table following this reference code table for a description of the failing item.
Reference Description/Action Failing
Code
Perform all actions before exchanging Failing Items
Item
0003 The data format is incorrect; the tape cannot be read MHGTFOR
Format is the arrangement of the data fields or record sequences recorded on a
magnetic tape.
3002, lOP card addressed 1/4-inch tape unit; no response FI01106
3003
The tape unit did not respond to commands from the lOP.
Chassis
Perform the following:
1. Ensure that the tape unit is powered on. If the tape unit does not become
powered on, see the tape unit manual and analyze the problem.
2. Power off the tape unit.
3. Ensure the system interface cable is connected at the tape unit and the lOP.
4. Power on the tape unit.
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AS/400 9401 Service Information