GE Voluson i BT06, Руководство по обслуживанию

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GE V
OLUSON
i / V
OLUSON
e
D
IRECTION
KTI106052, R
EVISION
10 S
ERVICE
M
ANUAL
Chapter 5 - Components and Functions (Theory) 5-19
5-3-2 Radio Frequency Interface (RBI) Board
The Radio Frequency Interface (RBI) Board combines the following sub-boards and functionalities:
• FEC (Front End Controller)
• RFT (Radio Frequency & Tissue) processor
• IMP (Image Port)
5-3-2-1 Tasks Performed by the RBI Board
• System Master Clock generator
• Transmitter Control
• ATGC Control
• Receive Focusing Control
• Analog Test Signal Generator
• High Voltage Control and supervision
• Probe Sensing
• Control of MUX board and RBF boards
NOTE: Additional Coax Cable need to be used and connected if system is equipped with GPP5/GPP6 and
RBI4 (See connection on GPP and RBI (
Figure 5-6 , above).
Not using the cable shows slight PW-mode disturbances. The Coax Cable prevents it.
5-3-3 RBF Boards (Transmitter/Receiver)
The Transmitter/Receiver has 64 channels and is made up of two identical RBF boards.
Each
RBF board is a complete 32-channel ultrasound Front End that includes the following features
and functions:
• 32 Transmitters
• 32 Receiving channels, T/R switch, Pre-Amp, TGC, ADC
• 32 channel digital Beamformer