Specifications

24
A
UDIOACCESS
Appendix III
Troubleshooting Guide
System locks up with PX-603 attached
• Check PX-600 software version.
• Check wiring for shorts, splits and insulation caught in screw-terminals at the PX-603, KPSs,
and KPT.
• Check PX-603 and KPS DIP settings.
• Check KPS and KP3 keypads for IR interference.
KPS keypads don’t control PX-603 rooms
• Check DIP settings on keypads and the PX-603.
• Check keypad wiring.
Slow response time
• Rooms attached to the PX-600 Zone Six main room can be expected to experience up to
fifteen seconds of delay due to IR housekeeping functions.
• Use heavier gauge wire on longer keypad runs. Check voltage input to keypad.
• Set DIP switch 10 down to engage terminator impedance on long or outdoor KPS keypad
runs.
• Modify one KPS keypad in the system to keep the bus high (call Audioaccess Technical
Support for instructions).
Unexpected KP3 response
• Check modular connector wiring. Wire order must be exactly the same at both ends
(PX-603 connection and KP3 connection).
• Be sure modular connectors are pushed in all the way on the PX-603 and KP3.
• Ensure connectors are fully crimped.
• Check location of modular plug on the PX-603 rear panel. Jack 1 controls the room assigned
to Audio Input 1, jack 2 controls Audio Input 2’s room, etc.
Unexpected KPS response
• Check KPS software version.
• Check keypad wiring.
Weak speaker output
• Check efficiency of speakers. Inefficient speakers may need more power than the PX-603
can supply.