Table of Contents
Revision W HF Series X-ray Generators - Service Manual
vi Quantum Medical Imaging
CHAPTER 4 - THEORY OF OPERATION (CONT’D)
Switching Power Supply Circuit ................................................. 4-5
Front Panel Key Activation Detection Circuit ............................... 4-5
Jumpers Installation ................................................................. 4-5
TechVision Compatibility .......................................................... 4-5
GENERATOR LOGIC CIRCUIT ......................................................... 4-5
Generator/OCP Communication ................................................ 4-6
Master and Slave Microcontroller Operation ............................... 4-6
FILAMENT CONTROL REGULATOR CIRCUIT .................................... 4-7
KVP & FILAMENT CONTROL CIRCUIT .............................................. 4-7
LINE MONITOR CIRCUIT (NON-SE SINGLE-PHASE AND
THREE-PHASE SYSTEMS) .............................................................. 4-8
Input Line Monitor Circuit ......................................................... 4-8
Capacitor Discharge Circuit ....................................................... 4-9
Auto-Shutoff Circuit ................................................................. 4-9
Three-Phase Line Monitor Circuit .............................................4-10
LINE MONITOR CIRCUIT (STORED ENERGY SYSTEMS) ...................4-10
Battery Monitor Circuit ............................................................4-10
Storage Capacitor Discharge Circuit .........................................4-10
Generator Auto-Shutoff Circuit .................................................4-11
Battery Charger Circuit ............................................................4-11
POWER SUPPLY CIRCUIT ..............................................................4-12
+48 VDC Power Supply ...........................................................4-12
+15 VDC Power Supply ...........................................................4-12
+24 VDC Power Supply ...........................................................4-12
ROTOR BOARD CIRCUIT (NON-HIGH SPEED STARTER SYSTEMS) ...4-13
ROTOR BOARD CIRCUIT (QUANTUM INTERNAL HIGH
SPEED STARTER SYSTEMS) .........................................................4-13
HSS Control Board A20A1 (AY40-035S) ....................................4-14
HSS Drive Board A20A2 (AY40-036S) .......................................4-15
AEC BOARD CIRCUIT ....................................................................4-16
Standard Type AEC .................................................................4-16
Universal Type AEC .................................................................4-17
+300 VDC Power Supply .........................................................4-18
AEC Control Circuitry ...............................................................4-18
Tomography Circuitry ..............................................................4-20
CHAPTER 5 - SERVICE INSTRUCTIONS
OVERVIEW .......................................................................................... 5-3
DISPOSAL OF BATTERIES AND ACCUMULATORS
(DIRECTIVE 2006/66/EC) .............................................................. 5-3
SERVICE MAINTENANCE ................................................................ 5-4
Visual Inspection ..................................................................... 5-4
TROUBLESHOOTING ...................................................................... 5-5
Warning Messages ................................................................... 5-5
Error Codes ............................................................................. 5-5
Optional +28 VDC Power Supply Troubleshooting .....................5-48