IBM 9228 Service Guide - Page 117

Follow the suggested actions in the order in which they are listed in the Action column until the problem

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Table 7. POST error codes (continued) v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See Chapter 3, "Parts listing, Type 9228 and 9232," on page 19 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU). v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a trained service technician. Error code Description Action 301 and 303 An error occurred during the keyboard and keyboard controller test. These error messages also might be accompanied by continuous beeping. 1. If you just connected a new mouse or other pointing device, turn off the computer and disconnect that device. Wait at least 5 seconds; then, turn on the computer. If the error message goes away, replace the device. 2. Make sure that nothing is resting on the keyboard or pressing on a key. 3. Make sure that no key is stuck. 4. Reseat the keyboard cable and make sure that it is connected to the correct connector on the computer. 5. After installing a USB keyboard, run the Configuration/Setup Utility program to enable keyboardless operation and prevent the POST error message from being displayed during startup. 6. Run the diagnostic tests to isolate the computer component that failed. 7. Replace the following components one at a time, in the order shown, restarting the computer each time: a. Keyboard b. (Trained service technician only) System board 602 An invalid diskette boot record error 1. Reseat the diskette drive cable. occurred. 2. Replace the following components one at a time, in the order shown, restarting the computer each time: a. Diskette drive cable b. Diskette drive c. (Trained service technician only) System board 604 An error occurred during a diskette drive 1. Make sure that the Configuration/Setup Utility test. program correctly reflects the type of diskette drive that is installed. 2. Reseat the diskette drive cable. 3. Replace the following components one at a time, in the order shown, restarting the computer each time: a. Diskette drive cable b. Diskette drive c. (Trained service technician only) System board Chapter 5. Diagnostics 99

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Table 7. POST error codes (continued)
v
Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See Chapter 3, “Parts listing, Type 9228 and 9232,” on page 19 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v
If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Error code
Description
Action
301 and 303
An error occurred during the keyboard and
keyboard controller test. These error
messages also might be accompanied by
continuous beeping.
1.
If you just connected a new mouse or other
pointing device, turn off the computer and
disconnect that device. Wait at least 5 seconds;
then, turn on the computer. If the error message
goes away, replace the device.
2.
Make sure that nothing is resting on the keyboard
or pressing on a key.
3.
Make sure that no key is stuck.
4.
Reseat the keyboard cable and make sure that it is
connected to the correct connector on the
computer.
5.
After installing a USB keyboard, run the
Configuration/Setup Utility program to enable
keyboardless operation and prevent the POST
error message from being displayed during startup.
6.
Run the diagnostic tests to isolate the computer
component that failed.
7.
Replace the following components one at a time,
in the order shown, restarting the computer each
time:
a.
Keyboard
b.
(Trained service technician only) System board
602
An invalid diskette boot record error
occurred.
1.
Reseat the diskette drive cable.
2.
Replace the following components one at a time,
in the order shown, restarting the computer each
time:
a.
Diskette drive cable
b.
Diskette drive
c.
(Trained service technician only) System board
604
An error occurred during a diskette drive
test.
1.
Make sure that the Configuration/Setup Utility
program correctly reflects the type of diskette drive
that is installed.
2.
Reseat the diskette drive cable.
3.
Replace the following components one at a time,
in the order shown, restarting the computer each
time:
a.
Diskette drive cable
b.
Diskette drive
c.
(Trained service technician only) System board
Chapter 5. Diagnostics
99