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GE M
S
EDICAL
YSTEMS
D
FC091194, R
IRECTION
7-4-5
Beamformer Calibration (Front End Alignment)
Beamformer Calibrations are performed to calibrate each ADC channel of the two Beam Former (BF)
board inputs. The system calibrates the Beamformer ADCs to zero output when there is no signal on
the input.
These bias voltages are stored on hard disk in Backend Processor.
7-4-5-1
When to Use this Procedure
This procedure should be performed;
•
when installing a new Vivid 7 / Vivid 7 PRO
•
after software has been updated or replaced
•
when BF boards have been interchanged
•
when a BF board has been replaced
•
when the Backend Processor has been replaced
7-4-5-2
Front End Alignment Procedure
1.) Disconnect all connected probes.
2.) Turn on the scanner.
3.) Press CONFIG and log in as adm
4.) Click SYSTEM
DC Offs. Cal
Cal. Reset
Show graph
5.) Click DC OFFS. CAL to start the DC Offset calibration of the Beam Formers (Front End Alignment).
02
EVISION
Figure 7-60 Calibration Dialog
Chapter 7 - Diagnostics/Troubleshooting
V
7 / V
7 PRO S
IVID
IVID
ERVICE
Channel Control
M
ANUAL
7 - 65
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