Keyboard Test - HP 200 Series Hardware Support Document

Troubleshooting and Diagnostics
67
Keyboard Test
The keyboard section is made up of these assemblies:
09817-69511 Processor board
46020 Keyboard
46020-60001 Keyboard Cable
It is an exchange assernbly.
Keyboard Test
The keyboard electronics are located on the keyboard and the processor board. The keyboard test
only checks the electronics mounted on the processor board. If the electronics fails the test, one of
these messages will appear on the CRT:
LED Display CRT Message
100 1 00 1
a
Keyboard Failed
0101 0010
Keyboard Missing
Probable Cause What to Do
Defective Keyboard Hard- Replace Processor Board
ware
Defective
110
Select Hard-
ware
The keyboard test checks the keyboard electronics located on the processor board. It does not
check the
E~lectronics
on the keyboard or the keyswitches. To check these areas, load a language
system and press any suspected key or combination of keys. If the keyboard test passes, but some
keys do not register correctly, the problem probably lies in the keyboard or cable. To decide which,
make note of keys which are incorrect. If the same key or keys are repeatedly incorrect, the
keyboard is probably defective. Otherwise, the cable is probably defective.