AT&T PC 6300 - Motherboard

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MAINTENANXE
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Motherboard
Possible defective hardware:
Motherboard
• Display Controller Board.
1. Turn the power switch OFF.
2. Insert the MS-DOS System Diskette into drive A.
3. Turn the power switch ON and verify that the Operating
System is booted.
4. Remove the MS-DOS System Diskette from drive A.
5. Insert the System Test Diskette into drive A.
6. Enter:
A> system<CR>
and wait for TESTING OPTIONS to be displayed along with
ENTER DESIRED ACTION. Press the 0 key followed by
the ENTER key.
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