Zeiss humphrey HFA II-i series Field Service Manual page 167

Humphrey Field Analyzer II - i
System startup state 1 - Get ROM ID - there has been a mismatch of revision levels.
Recommended Action:
• Cycle power to restart
• Install the most current revision of software
• Replace motor driver PCB
System startup state 2 - Get Status - the ROM self-check failed
Recommended Action:
• Cycle power to restart
• Install the most current revision of software
• Replace motor driver PCB
System startup state 3 - Resets motors - All motors have failed to detect their flags
Recommended Action:
• Cycle power to restart
• Check System Log (Appendix J.3) for repetitive motor failures
• Visually inspect Motors, Flags, and Edge Detectors for misalignment. The Motor exerciser
function can also be used to diagnose motor failures. Adjust as necessary. If failure
cannot be traced to a particular Motor, flag, or detector check/replace motor driver PCB
or connections.
System startup state 4 - Set motor flag parameters - a motor or edge detector have failed.
Recommended Action:
• Cycle power to restart
• Check System Log (Appendix J.3) for repetitive motor failures
• Visually inspect Motors, Flags, and Edge Detectors for misalignment. The Motor exerciser
function can also be used to diagnose motor failures. Adjust as necessary.
• Refer to Common Error Messages (Section 5.10)
• If failure cannot be traced to a particular Motor, flag, or detector check/replace motor
driver PCB or connections.
System startup state 5 - Set motor rates - A motor did not respond properly.
Recommended Action:
• Cycle power to restart
• Check System Log (Appendix J.3) for repetitive motor failures
• Visually inspect Motors, Flags, and Edge Detectors for misalignment. The Motor exerciser
function can also be used to diagnose motor failures. Adjust as necessary.
• If failure cannot be traced to a particular Motor, flag, or detector check/replace motor
driver PCB or connections.
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Troubleshooting
Field Service Guide