Chapter 5 Service Instructions
HF Series X-ray Generators - Service Manual Revision W
Quantum Medical Imaging, LLC
5-89
Universal AEC Control Board A11 (P/N AY40-027S) Removal
CAUTION! The AEC Control Drive Board contains
electrostatic sensitive devices. Observe proper
grounding precautions before handling the AEC
Control Drive Board or any other circuit board.
6. Set the power on/standby switch on the Operator Control Panel
(OCP) to the standby ( ) position.
7. Set the ON/OFF circuit breaker CB1 on the generator cabinet to
OFF position.
8. Tag and remove plugs connected to A11J1, A11J5, A11J6, A11J7,
A11J9 and A11J11.
9. Disconnect any Wall and/or Table bucky cable(s) connected to
A11J8, A11J10, A11J12 and A11J13.
10. If present, tag and remove wires connected to A11TB1 (used for
Siemens ion chamber).
11. If present, tag and remove wires connected to A11TB10,
A11TB12 and A11TB13 (used with Siemens tomography system).
12. Remove four (4) hex nuts securing AEC Control Board A11 to the
PCB Door and remove the AEC Control Board.
Universal AEC Control Board A11 (P/N AY40-027S) Replacement
CAUTION! The AEC Control Board contains elec-
trostatic sensitive devices. Observe proper
grounding precautions before handling the AEC
Control Drive Board or any other circuit board.
1. Place the new AEC Control Board A10 on the PCB Door and
secure using four (4) hex nuts.
2. If applicable, re-connect wires to A11TB10, A11TB12 and
A11TB13 (used with Siemens tomography system). Remove tags.
3. If present, re-connect wires to A11TB1 (used for Siemens ion
chamber) and remove tags.
4. Re-connect any Wall and/or Table bucky cable(s) to A11J8,
A11J10, A11J12 and A11J13 on AEC Control Board.
5. Re-connect plugs to A11J1, A11J5, A11J6, A11J7, A11J9 and
A11J11 and remove tags.
6. Set the ON/OFF circuit breaker CB1 on the generator cabinet to
ON position.
7. Set the power on/standby switch on the Operator Control Panel
(OCP) to the on ( ) position.
8. Perform AEC calibration procedures (refer to Chapter 3, CALIBRA-
TION).