HF Series Generators
T roubleshooting
TR-1005R4
1
SECTION 1 INTRODUCTION
The Generator contains many self-diagnostic routines which greatly facilitate
troubleshooting. Self-diagnostic functions require that all microprocessors
function correctly. Each microprocessor contains LEDs that indicate its correct
operation.
As a general rule, the first step in any troubleshooting procedure is to verify
correct Power Supply Voltages and perform a visual inspection of all Boards
and Cable connections.
On arrival in the X-ray Room, the Service Engineer should carry out the
following operations:
• If the Generator cannot be Powered up, run the troubleshooting for Error
Code E01.
• If the Generator can be Powered up:
G Check which Error Code is displayed on the Console and run the
troubleshooting routines for the last Error Code displayed.
G If it is not, try to reproduce the failure in the conditions reported by
the Operator. It is possible that the Error Code displayed is
different from either that indicated by the Operator. In all cases,
run the troubleshooting routines for the last Error Code displayed.
When any major component, such as a X-ray Tube,
HV Transformer or Circuit Board, is replaced in the system,
perform the respective Configuration and Calibration
procedures.
If the HT Controller Board or the ATP Console CPU Board are
replaced, check specially that Extended Memory data have
not been lost or modified with the Board change. Compare
Extended Memory data displayed on the Console with the
values noted in the Data Book.
If the HT Controller Board is replaced in the Power Module,
transfer U3-EEPROM from the old Board to the new Board.
U3-EEPROM contains calibration data and if U3-EEPROM is
not transferred a complete Calibration must be performed.
Also, make some exposures using different techniques and
Focal Spot and check that mA stations are calibrated
correctly, if not perform Calibration procedures.
Update and record in the Data Book any new data entered in
the Extended Memory Locations.
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