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204 - xx Memory address test If you don't have a memory
failed expansion board, replace the
system board.
206 - xx Increment pattern test If you have a memory expansion
failed board:
210 - xx Random pattern test 1. Remove the memory expansion
failed board and reinstall a new
board.
2. Replace the memory
expansion board.
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Table 5-4. Keyboard Computer Checkup Error Codes
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Error Code Description Recommended Action
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301 - xx Keyboard short test 1. Check the keyboard
8042 self-test failed connection. If disconnected,
turn off the computer and
connect the keyboard.
2. Replace the keyboard.
3. Replace the system board.
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302 - xx Keyboard long test 1. Check the keyboard
failed connection. If disconnected,
turn off the computer and
connect the keyboard.
2. Replace the keyboard.
3. Replace the system board.
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303 - xx Keyboard indicator 1. Replace the system board.
test, 8042 self-test 2. If an external keyboard is
failed being used, replace the
external keyboard.
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304 - xx Keyboard typematic test 1. Check the keyboard
failed connection. If disconnected,
turn off the computer and
connect the keyboard.
2. Replace the keyboard.
3. Replace the system board.
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Table 5-5. Parallel Printer Computer Checkup Error Codes
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Error Code Description Recommended Action
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401 - xx Printer failed or not The following steps apply to
connected 401 - xx through 498 - xx error
codes:
402 - xx Printer data register 1. Connect the printer.
failed 2. Check power to the printer.
3. Install the loopback
403 - xx Printer pattern test connector.
failed 4. Replace the system board.
498 - xx Printer failed or not