GE Vivid 7 Service Manual

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 45
5-3-17 Digital Signal Processors  Subsystem In Units with FEP1
NOTE: The Digital Signal Processors Subsystem, as  described here, is only used in Front-End Rack 
version 1 (FEP1). 
In units with Front- End Rack version 2 (FEP2), the RFI boa rd plus software on the BEP replaces 
the functionality of these boards, see:  5-3-21 Radio Frequency Interface Board, RFI on 
page 5-61 ....

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 46 Section 5-3 - a  Front-End Processor (FEP)
5-3-17-2 Location in the Unit • Color Flow Processing is done by  software on the Back-End Processor.
• Tissue processing and Doppler processing are done by the cards listed in  Table 5-35 on page 5-46.
5-3-17-3 Input Signals • Digitized ultrasound signals from the Beam Formers
• S-Video/C-Video replay from  VCR (via Internal I/O)
5-3-17-4 Bi-directional Signals
5-3-17-4-1 PC2IP Bus...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 47
5-3-18 RF & Tissue Processor Board, RFT
NOTE: The RF & Tissue Processor Board (RFT) is only used in Front-End Rack version 1.  In units with Front-End Rack vers ion 2, the RFI board replaces the functionality of this board, 
see:  5-3-21 Radio Frequency Interface Board, RFI on page 5-61 .
5-3-18-1 General Description The RF & Tissue Processor board receives digitize d ultrasound...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 48 Section 5-3 - a  Front-End Processor (FEP)
5-3-18 RF & Tissue Processor Board, RFT (cont’d)
5-3-18-1-5 Control The RFT board has a local Digital Signal Processor (DSP) with an external EPROM.
The DSP performs multiple control tasks:
1.) It handles communication with the BEP over the VME bus.
2.) It updates filter coefficients and  other parameters in the data path.
3.) When output events from the Fron t-End Controller is...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 49
5-3-18 RF & Tissue Processor Board, RFT (cont’d)
5-3-18-3 Inputs
5-3-18-3-1 Input Signals 
5-3-18-4 Bi-directional Signals
 
5-3-18-5 Outputs
5-3-18-6 DC Voltages
 
Table 5-36    Input Signals 
INPUTDESCRIPTIONCONNECTION FROM
MLA 0 &  MLA 1 Input data stream
VME Bus Data communication BEP
Front-End Bus Information about the type of data and the data sample.  FEC
Table 5-37...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 50 Section 5-3 - a  Front-End Processor (FEP)
5-3-18 RF & Tissue Processor Board, RFT (cont’d)
5-3-18-7 Fuses and Dip-switches None
5-3-18-8 LEDs and Jumpers
 
Figure 5-33   RFT, LEDs and Jumpers
Table 5-40    LEDs on the RFT Board
LED #LED COLORDESCRIPTIONNORMAL STATE
LD8  - Red Board Failure OFF
LD7  - Green Board OK ON
LD6  - Yellow DSP Runs BLINKING
LD5 - YellowData Out on PipeLinkON During Data Transfers to PipeLink
LD4 -...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 51
5-3-19 Spectrum Doppler  Processor Board, SDP
NOTE: The Spectrum Doppler Processor Board is only used in Front-End Rack version 1. 
In units with Front-End Rack ve rsion 2, the RFI board plus software on the BEP replaces the 
functionality of this board, see:  5-3-21 Radio Frequency Interfac e Board, RFI on page 5-61.
5-3-19-1 General Description • This board performs Spectrum...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 52 Section 5-3 - a  Front-End Processor (FEP)
5-3-19 Spectrum Doppler Pr ocessor Board, SDP (cont’d)
5-3-19-7 Location in the Unit
5-3-19-8 Input Signals
 
5-3-19-9 Bi-directional Signals
 
Figure 5-34   SPD Board - Location in Unit
Table 5-41    Input signals 
INPUTDESCRIPTIONCONNECTION FROM:
PipeLink Doppler Signals extracted RFT Board
Serial Trace Data Analog Traces Patient I/O via Internal I/O
Table 5-42    Bi-directional...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 53
5-3-19 Spectrum Doppler Pr ocessor Board, SDP (cont’d)
5-3-19-10 Outputs
 
5-3-19-11 DC Voltages
 
5-3-19-12 Fuses and Dip-switches
None Table 5-43    Output Signals 
INPUTDESCRIPTIONCONNECTION TO:
PipeLink Doppler Signals  extracted IMP Board
Audio Output Analog Doppler (I and Q) signals to Operator Panel 
speakers and VCR Internal I/O
VME Bus Data communication IMP
Table 5-44...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 54 Section 5-3 - a  Front-End Processor (FEP)
5-3-19 Spectrum Doppler Pr ocessor Board, SDP (cont’d)
5-3-19-13 LEDs and Jumpers
Figure 5-35   SDP, LEDs and Jumpers
LD8
LD9
LD10
LD11
LD12
SW3
LD1
LD2
LD3
LD4
LD5
LD6
LD7
P4
12
3940
P6
12
1112SW1
P5
12
1112