Appendices
Fault Codes
A
A-19
3500-Level Faults: Self Diagnostics Subsystem (Power Amp)
3500 A16: 8255 Control Word
3501 A16: 8255 Port A
3502 A16: 8255 Port B
3503 A16: 8255 Port C
3507 A16: PA Supplies Are Off
3508 A16/A14: 220V AC Range Output Fault
3509 A16: Amplifier Loop Not Regulated
3510 A16: 220V Amp Fault
3511 A16: Incorrect PA Input
3520 A16: PA Oven Regulation Fault
3521 Assembly A16 Is Not Responding
3524 A16: Power Amp Is Too Hot
3525 220V DC Initialization Fault
3526 220V AC Initialization Fault
3527 A16: Power Amp DC Cal Network Zero Fault
3528 A16: Power Amp DC Cal Network Gain Fault
3529 A16: Pwr Amp 220V Range Attenuator Fault
3530 A16: 8255 Was Reset
3600-Level Faults: Self Diagnostics Subsystem (Power Supplies)
3600 +17S Supply Fault
3601 -17S Supply Fault
3602 +15S Supply Fault
3603 -15S Supply Fault
3604 +42S Supply Fault
3605 -42S Supply Fault
3606 LH COM Ground Fault
3607 -5LH Supply Fault
3608 5RLH Supply Fault
3609 8RLH Supply Fault
3610 +PASupply Fault
3611 -PASupply Fault
3612 +15 OSC Supply Fault
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