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Troubleshooting AMX
Error Number
Error 320
Error Code / System Message
320
Error Question
What should I check for error 320 on the AMX-4 Series?
Short Answer
Note: (And Possibly 458 Error) 1) Check fuse F93 on Rotor Control Board 2) Check fuse F7 on AMX1 A3 3) Check for 60 Hz phase 1 signal at Anode of CR53 and 60 Hz phase 2 signal at Anode of CR66 on Rotor Control Board 4) Defective Rotor Control Board 5) Defective CPU Board 6) Check Stator/Rotor cable 7) Bad CR179 on Filament kVp Control Board
Possible Causes
Note: (And Possibly 458 Error) 1) Check fuse F93 on Rotor Control Board 2) Check fuse F7 on AMX1 A3 3) Check for 60 Hz phase 1 signal at Anode of CR53 and 60 Hz phase 2 signal at Anode of CR66 on Rotor Control Board 4) Defective Rotor Control Board 5) Defective CPU Board 6) Check Stator/Rotor cable 7) Bad CR179 on Filament kVp Control Board. 8) Bad Rotor Controller Board if overheating, fuse blown, circuit breaker kept tripping, bad 1 kHz board
Troubleshooting Steps
Note: (And Possibly 458 Error) 1) Check fuse F93 on Rotor Control Board 2) Check fuse F7 on AMX1 A3 3) Check for 60 Hz phase 1 signal at Anode of CR53 and 60 Hz phase 2 signal at Anode of CR66 on Rotor Control Board 4) Defective Rotor Control Board 5) Defective CPU Board 6) Check Stator/Rotor cable 7) Bad CR179 on Filament kVp Control Board
Parts Areas to Check
CPU Board; Rotor Control Board; Stator; Rotor
For Related Models
AMX-4, AMX-4+, Definium AMX 700
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