9.0 Keyboard
+---+
¦001¦
+---+
- Power-off the system.
- Disconnect the keyboard cable from the keyboard.
- Power-on the system and check the keyboard cable connector for the
voltages shown. All voltages are ± 5%.
PICTURE 4
ARE THE VOLTAGES CORRECT?
Yes No
¦ ¦
¦ +---+
¦ ¦002¦
¦ +---+
¦ Possible failing FRUs are:
¦ 1. Fuse, or keyboard cable
¦ 2. System board.
¦
+---+
¦003¦
+---+
Replace the keyboard.
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IBM PS/2 Model 70 HMS
Keyboard
¦ Copyright IBM Corp. 1991
9.0 - 1
