GE HEALTHCARE
DIRECTION FQ091013, REVISION 1 VIVID I N AND VIVID Q N SERVICE MANUAL
5-18 Section 5-3 - Front End Unit
5-3-5 Probe and MUX (P&M) Board
The Probe and MUX (multiplexer) Board enables acquisition and processing of signals from and to
probes connected to the front panel. The P&M enables up to 64 receive/transmit channels, and
performs the following functions:
• Receiving the channels and connecting them to the TR32 Boards
• Probe connectors
• High voltage MUX that selects 64 out of 128 inputs, routed to the TR32 boards
• Pencil's probe Pulser and receive pre-amplifier
• Analog Doppler processor: a signal path for CW mode containing analog Beam Former, Band Pass
filter, I/Q base band converter, high pass filter.
Figure 5-14 Probe and MUX Board - Block Diagram
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