Crown Audio IQ System - Manual (Page 2)

2 — Troubleshooting
Notes
Rev 3-97
@ Crown
2. Common IQ Problems
• Swith configuration
• RS232/422 cables
• Non-standard serial ports
• PC does not meet requirements
• Software configurations
• Design error or campatability problem
• Crown Bus wiring errors
• Crown Bus capacitance
3. Troubleshooting Tools
• Roll Call (File|New)
• Engage/Upload
• Break Detect
• Voltage Measurements
• Current Waveform Measurements
• Documentation
• Technical Support (1-800-342-6939/219-294-8200)
4. Voltage Measurement: OK
Figure 1
5. Voltage Measurement: Shorted
Figure 2
6. Voltage Measurement: Open
Figure 3
7. Voltage Measurement: Reverse Polarity
Figure 4
8. Current Measurement
Figure 5
9. Does The Software Run?
• PC Requirements
• Environment (Windows, DOS...)
• Corrupt or Incorrect Files
10. Is It Possible to Run a Roll Call?
• Demo Version
• Serial Port Parameters
11. No Interface Found?
• Interface off/unplugged
• RS232/422
• Serial port setup in software
• Interface setup
• Windows Control panel setup
• SMX in CLN mode
• RS232 smart switcher
12. Are All Components Found?
• Software support
• OIF/DLL files
• Interface compatability
• Power
• Loop wiring
• Capacitance
• Duplicate or invalid addresses
13. Factory Support Issues
• Hardware serviced only at Crown
• Upgrades
• Licensing of software
• Development products