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Troubleshooting AMX

Error Number
Error 45F
Error Code / System Message
45F
Error Question
What should I check for error 45F on the AMX-4 Series?
Short Answer
1) Check correct wiring between J5 plug on Filament kVp Board and HV Transformer Tank. 2) Check spark gaps on HV Transformer Tank (0.010 in.). 3) Check that HV cables are not reversed. 4) Check wiring of J4 plug to Filament kVp Board. 5) Check that U18 on Filament kVp Board is #1489, not #14C89. 6) Check/replace Filament kVp Board. 7) Check FIL SHORTED at J2-25 on Filament kVp Board. 8) Check for insufficient filament drive: XS-1 to XS-2 at HV Transformer Tank should be approximately 17 VAC at 52 kVp with PREP. 9) Check for loose J3 on Filter Board.
Possible Causes
Apply to recent Filament kVp Board part # 46-264986G2, the electronic components on the board capacitor C98, C233 and C234 failing on the board due to non-qualified vendor (Electrocube) which are suspected to have heated-related quality issues. Refer to Service Note 3999 1. Check for Correct Wiring Between J5 Plug On Filament kVp Board And HV Transformer Tank 2. Check Spark Gaps On HV Transformer Tank (0.010”) 3. Check that HV Cables Are Not Reversed 4. Check Wiring Of J4 Plug To Filament kVp Board 5. Check that U18 On Filament kVp Board Is #1489 — NOT #14C89 6. Defective Filament kVp Control Board (See Additional Notes #3) 7. FIL SHORTED (Check J2-25 On Filament kVp Board) 8. Insufficient Filament Drive (XS-1 To XS-2 [HV Transformer Tank] = Approximately 17 VAC @ 52 kVp With PREP) 9. Loose J3 On Filter Board
Troubleshooting Steps
Apply to recent Filament kVp Board part # 46-264986G2, the electronic components on the board capacitor C98, C233 and C234 failing on the board due to non-qualified vendor (Electrocube) which are suspected to have heated-related quality issues. Refer to Service Note 3999 1. Check for Correct Wiring Between J5 Plug On Filament kVp Board And HV Transformer Tank 2. Check Spark Gaps On HV Transformer Tank (0.010”) 3. Check that HV Cables Are Not Reversed 4. Check Wiring Of J4 Plug To Filament kVp Board 5. Check that U18 On Filament kVp Board Is #1489 — NOT #14C89 6. Defective Filament kVp Control Board (See Additional Notes #3) 7. FIL SHORTED (Check J2-25 On Filament kVp Board) 8. Insufficient Filament Drive (XS-1 To XS-2 [HV Transformer Tank] = Approximately 17 VAC @ 52 kVp With PREP) 9. Loose J3 On Filter Board
Parts Areas to Check
Filament kVp Board; HV Transformer Tank
For Related Models
AMX-4, AMX-4+, Definium AMX 700
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