Emergency Stop Button; Tube Head Thermostat; Communication Error; Other Diagnostic Failure Codes - GE Medical Systems PRODIGY Service Manual

4.4

Emergency Stop Button

The Emergency Stop button is a normally closed circuit, if it opens the
Emergency Stop interrupt will be sent from the FOINK to the SBC.
4.5

Tube Head Thermostat

There is a thermostat inside the Tube Head. This thermostat is normally
closed, but opens when the Tube Head temperature is too high.
4.6

Communication Error

The computer is not communicating with the SBC board.
Verify communications with the SBC in the service software (Tools/Service
Options Comm tab - Test Communications).
If this is unsuccessful, verify that the I/O cable from the computer to the SBC
Board is secure. Also, verify that the comm port is configured correctly (see
DXPC 2000 Chapter 5 appendices) and that all required drivers are present. If
all fails, the SBC or computer serial port is defective.
4.7

Other Diagnostic Failure Codes

DPX-NT Service Manual (Rev A- 1999)
• Verify that the emergency stop button is out. If it has been pressed in,
press it again to release it.
• If 26VDC can be measured on both pins of FOINK connector J17, the
Emergency Stop Switch and the wires connecting it to the FOINK board
are good and the FOINK board should be replaced.
• If 26 VDC is missing, the Circuit is open between the FOINK and the
Switch.
• Insure the switch is functional
• Check the continuity of the wires from the switch to the FOINK board.
• The thermostat will close again automatically after a cool down period of
usually less than 30 minutes. If 0 VDC is measured on both pins of
FOINK connector J15, the Thermostat and the wires connecting it to the
FOINK board are good and the FOINK board should be replaced.
Troubleshooting 4-127