GE Vivid 7 Service Manual

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 25
5-3-12-3 Input Signals
 
5-3-12-4 Output Signals 
5-3-12-5 Fuses, Jumpers, Dip-switches and LEDs None Table 5-14    Input Signals 
INPUTDESCRIPTIONCONNECTION FROM
XD1 - XD128 Back scattered echo signals (Receive Mode) and 
Transmitter pulses (Transmit Mode) Active Probe via Relay board in Receive 
Mode 
TX128 in Transmit Mode.
Table 5-15    Output Signals...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 26 Section 5-3 - a  Front-End Processor (FEP)
5-3-13 Relay Board (RLY)
5-3-13-1 General Description The Relay Board hosts the connectors for the probes. 
• On systems without 4D (RT3D), the Relay Board has three PA probe connectors plus a “blind” PA slot used to park a fourth probe.
• On systems with 4D (RT3D), the  Relay Board has four probe connectors. The three leftmost 
connectors are used for PA probes, the fourth...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 27
5-3-13-2 Location in the Unit Figure 5-20   RLY Board: Location in Unit
RLY Board
FRONT OF 
SCANNER 

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 28 Section 5-3 - a  Front-End Processor (FEP)
5-3-13 Relay Board (RLY) (cont’d)
5-3-13-3 DC Voltages
 
5-3-13-4 Input Signals
 
5-3-13-5 Control Signals
 
5-3-13-6 Output Signals
 
5-3-13-7 Fuses, Jumpers, Dip-switches and LEDs None Table 5-16    DC Output Voltages, Plug P3 & P4 
INPUTDESCRIPTIONCONNECTED FROM
+ 5 Va DC output voltage, distributed via Motherboard 
(Backplane). 
The “a” indicates that this vo ltage is used for...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 29
5-3-14 Receiver Board, RX-128
5-3-14-1 General Description
5-3-14-2 Signals From Active Probe • The RX-128 Board has 128 identical receive channels (XD1-XD128). 
• The signal in each channel is fed via a Tran smit/Receive (T/R) switch to a preamplifier. 
• From the preamplifier the signal goes to a Time  Controlled Gain (TGC) amplifier used to equalize 
the signal strength from...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 30 Section 5-3 - a  Front-End Processor (FEP)
5-3-14-3 Signals from Pedof Probe The Pedof signals are connected via two dedicated channels on the XD bus
PW Mode
• The Pedof signals (two channels) are fed via a  Transmit/Receive (T/R) switch and relays to three 
preamplifiers for each Pedof channel.
• From the preamplifiers the signal go to Analog Beamformers.
• From the Analog Beamformers the signals are fed via a multiplexer...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 31
5-3-14 Receiver Board, RX-128 (cont’d)
5-3-14-5 DC Voltages
 
5-3-14-6 Input Signals
 
5-3-14-7 Output Signals
 
5-3-14-8 Fuses None
5-3-14-9 Jumpers and Dip-switches None Table 5-20    DC Input Voltages, Plug P3 & P4 
INPUTDESCRIPTIONCONNECTED TO
+ 5 Va DC output voltage, distributed via Motherboard 
(Backplane). 
The “a” indicates that this vo ltage is used for analog circuits...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 32 Section 5-3 - a  Front-End Processor (FEP)
5-3-14 Receiver Board, RX-128 (cont’d)
5-3-14-10 LEDs Figure 5-23   RX-128: LEDs (on the Solder Side of the Board)
Table 5-23    RX-128: LEDs (on the Solder Side of the Board)
LED #LED COLORDESCRIPTIONNORMAL STATE
LD1  - Red Board Failure Normally OFF
LD2  - Green Board OK Normally ON
LD3  - Yellow Spare Normally OFF
LD4 - YellowSpa reNormally OFF
LD4
LD3
LD2
LD1 

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 33
5-3-15 Beam Former Board(s), BF-64
5-3-15-1 General Description, BF-64 boards  The BF64 board converts the analog RF-input signal from 64 receiver channels into digital form and 
performs receiver focusing and steering by digital delay.
All digital signal processing to filter and delay ea ch channel is performed in an Application Specific 
Integrated Circuit (ASIC) named FOC32....

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 34 Section 5-3 - a  Front-End Processor (FEP)
5-3-15 Beam Former Board(s), BF-64 (cont’d)
5-3-15-3 DC Voltages
 
5-3-15-4 Input Signals
 
5-3-15-5 Output Signals
 
5-3-15-6 Fuses None. Table 5-24    DC Input Voltages 
INPUTDESCRIPTIONCONNECTED TO
+ 3.3 V DC voltage, distributed via Mother board (Backplane) DC Power Supply via Backplane
+ 5 Vd DC output voltage, distributed via Motherboard 
(Backplane). 
The “d” indicates that...