GE HEALTHCARE
DIRECTION FC091194, REVISION 11 VIVID 7 SERVICE MANUAL
Chapter 5 - Components and Functions (Theory) 5 - 63
5-3-21-9 Probe Management
• Control the selection of a probe connector
• Sense the Probe type
• Sense the Scan Plane Angle on MPTE and PAMPTE probes
• Sense Probe Temperature
• Turn off the probe if temperature exceed maximum temperature.
The temperature references are set to 41.3
o
C and 43.0
o
C.
• Turn off the probe if temperature reading falls below minimum temperature
The minimum temperature references is set to15
o
C. A temperature reading as low as 15
o
C
indicates a probe temperature sensing error.
5-3-21-10 TX Power Supply Management
The TX Power supply has two separate voltage outputs, TX Power Supply #1 (TX1) generates
voltages for 2D imaging and TX Power Supply #2 (TX2) generates
voltages for Doppler operation (CF, PW and CW).
The RFI set the voltage level for the two TX Power Supply outputs, TX1 and TX2.
The RFI also measure the voltage levels and current drain from the two TX outputs. It will turn off power
to the probe if any of the values exceed the limit for a given mode.
5-3-21-11 Location in the Unit
Figure 5-39 RFI board: Location in Unit
FEP2
RFI BOARD
FRONT OF
SCANNER
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