User manual

Appendix
ComTec GmbH 7-10
7.5. Troubleshooting
Power LED is off
• Check fuse on PCI card.
• Check if the computer is turned on.
• Is the FHS Link cable installed and tightened?
• No 'Extra Power Cable' is installed and it formerly worked: Replace the fuse on the PCI card.
• Install an 'Extra Power Cable'.
LEDs are illuminated even when the computer is turned off
• ADCs or other externally powered equipment is connected and drives the module's supply
voltage via the built-in pull-up resistors of the ports. → Don't care.
LED displays of one module are off – others are on
• The Power IN is not properly connected?
• Replace the fuse inside the module. Only authorized service personnel should do this!
RealTimeClock / Timer / Counter option is not accessible
• The RealTimeClock option was not purchased.
• Edit the mpa3.ini file: there must be a line "rtc=1"
Replay is not possible
• The Replay option was not purchased.
• Edit the mpa3.ini file: there must be a line "replver=1" if replay is enabled inside the Base
module, or a line "replver=2" for the key module. Check whether it is connected to the LPT1:
parallel port.