- Power-off the computer.
- Disconnect the keyboard cable from the system unit.
- Power-on the computer and check the keyboard
cable connector on the system unit for the voltages shown.
All voltages are ± 5%.
ARE THE VOLTAGES CORRECT?
Yes No-+002| Replace the system board
On keyboards with a detachable cable, replace the cable.
If the problem remains or if the cable is permanently
attached to the keyboard, replace the keyboard.
If the problem remains, replace the system board.