GE Voluson 730 Service Manual page 141

GE M S - K
EDICAL YSTEMS
D 105844, R
IRECTION EVISION
5-4-1 Front End - Board Descriptions
5-4-1-1 CPU - Probe Board
• 1 CW-Probe Connector
• 3 Probe-Connectors 260pin
• 1 Dummy-Probe Connector 260pin
• Probe Select Relays
• Probe Recognition
5-4-1-2 CPR - Beamformer Board
Transmitter-Receiver (192 transmitter channel used, 128 Receiver channels)
CPR contains 32 pieces of CPD
5-4-1-2-1 CPD-Beamformer-Sub-board
1x : Beamformer-ASIC
8x : TX-Power Amplifier
4x : TGC + Anti Aliasing Filter + Analogue Digital Conversion (ADC)
Each CPD is capable of 8 TX-Channels and 4 RX-Channels
5-4-1-3 CRW - (old version: CWD) CW-Doppler Board (Optional)
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5-4-1-4 CPZ - Cover Board
Transfers the analogue transmitting / receiving signals between the following boards:
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192 Transmitter channels, 128 Receiver channels, 16 CW-Doppler channels - switched by relays at
CPZ
U
RETZTECHNIK LTRASOUND
1
generates TX-Pulses + TX-Focus +TX-Apodisation, Rx Focus Delay and Summation
Separate Clock Oscillator + Clock generator PRF, FN
TxDelayMatrix
Transmitter,
Receiver Amplifiers (RxAmp),
Receiver Delay matrix (RxDelayMatrix)
Analogue: Mixer, Amplifier, Filter(WMF, Anti Aliasing)
PRF-SampADC16Bit,
CPU (in old version BYM)
CPR
CRW (in old version CWD)
Chapter 5 Components and Functions (Theory)
V ® 730 S
OLUSON ERVICE
M
ANUAL
5-21