Remove the jumper from the “S” position at W12[1–2].
If using a CRT monitor, check the cable and connections going from the
J18 connector to the monitor.
If using a flat panel display, check the following:
1.
Cable and connections going from the J14 connector to the flat
panel display.
2.
Signal cable going to the flat panel display. If the cable length is
too long, the distortion may be caused by noise. 18” or less is the
recommended length. Cable shielding may be required.
3.
Power cable going to the flat panel display.
4.
Power module for the flat panel. Make sure that the power
module has enough current capacity to power both the PC–600
card and the flat panel.
No serial console activity
If the serial console does not appear to be functioning correctly, check the
following:
Make sure all PC/104 expansion cards are removed from the PC–600.
This ensures that other cards are not interacting with the PC–600.
Remove the jumper from the “S” position at W12[1–2].
Make sure COM1 on the PC–600 is used.
Make sure a null modem adapter is installed between COM1 of the PC–
600 the serial port of your PC.
Make sure that your terminal emulator (such as HyperTerminal) on
your PC is set-up properly. Refer to the
Console devices
chapter. Refer
to the HyperTerminal manual for information on setting up
communication parameters.
After verifying the above conditions, you can monitor voltage levels by
connecting an oscilloscope between the TxD* line on COM1 and ground.
After power–up, you should see a burst of activity on the oscilloscope
screen. The voltage level should switch b/–8V.
Garbled console screen activity
If you do get activity on your console screen but the message is garbled,
119
