Chapter 5 Service Instructions
HF Series X-ray Generators - Service Manual Revision W
Quantum Medical Imaging, LLC
5-85
480 VAC Three Phase Systems w/QMI High Speed Starter
CAUTION! The Line Monitor Board contains elec-
trostatic sensitive devices. Observe proper
grounding precautions before handling the Line
Monitor Board or any other circuit board.
1. On the replacement Line Monitor Board A8, verify all jumpers are
set to same configuration as removed Line Monitor Board.
2. Place new Line Monitor Board A8 on standoffs in PCB Door and
secure using four (4) screws.
3. Connect all cables (except A8J1) to Line Monitor Board. Remove
tags.
4. Access Service Mode, AD Calibration menu. Verify +400V Cathode
and +400V Anode voltages are within tolerance per Table 3-8. If
not, calibrate in accordance with "A/D Calibration Procedure" in
Chapter 3 (ODYSSEY) or Appendix B (DiRex Integration genera-
tors), or Appendix D (all other integrated generators).
Stored Energy Systems Line Monitor/Charger Board A8 (AY40-
028T) Removal
CAUTION! The Line Monitor/Charger Board con-
tains electrostatic sensitive devices. Observe
proper grounding precautions before handling the
Line Monitor/Charger Board or any other circuit
board.
1. Set the power on/standby switch on the Operator Control Panel
(OCP) to the standby ( ) position.
2. Set the ON/OFF circuit breaker CB1 on the generator cabinet to
OFF position.
3. Using a DVM, confirm the voltage across both DC Power Supply
Capacitor Banks has been discharged to below 5VDC. This will
take several minutes following shutdown.
4. Each battery tray has mounted on its front center, two cartridge
fuses holders housing F1 and F2. Flip up the fuse holder release
levers on top of each holder to open the four battery circuits.
5. Tag and remove cables connected to Line Monitor/Charger Board
A8.
6. Remove four (4) hex nuts securing the Line Monitor/Charger
Board to PCB Door and remove the Line Monitor/Charger Board.
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