JARLTECH JP8031 series, Operation Manual

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33
5
Troubleshooting
• • • • • • •
Situation
Solution
• Check the cable connections according to the descrip-
tions in Chapter 2. For RS232 programming and
operation, be sure that the power supply is connected.
• When programming via RS232, be sure that the correct
communication port has been selected. If the port
selection is correct, perhaps the computer RS232
interface is defective.
• Check the cable connections of the keyboard and
adaptors (if used, e.g., PS/2 keyboard plug). Does the
keyboard beep correctly when the power is turned on?
• Open 8031 programming tool to confirm that you
selected the correct operation of the 8031 keyboard
(RS232 vs. keyboard wedge).
• The downloading
of the keyboard
map from the
computer to the
8031 keyboard
does not work.
• The 8031
keyboard does
not transmit any
data.
Troubleshooting