GE Vivid 7 Service Manual

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 55
5-3-19 Spectrum Doppler Pr ocessor Board, SDP (cont’d)
 
Table 5-45    LEDs on the SDP Board
LED #LED COLORDESCRIPTIONNORMAL STATE
Upper Batch of LEDs
LD1  - Red DSP1 Status OFF.
ON if errors/warnings detected.
LD2  - Green Board OK ON
OFF if error detected.
LD3 - Yellow 0DSP1 Local SW RunningFLASHING
LD4 - Yellow 1DSP1 Ready for DataON when scanning, else OFF
LD5 - Yellow 2DSP1 has received dataON in Doppler mode, else OFF
LD6  - Yellow 3 Data Out on PipeLink  ON during data transfer to PipeLink 
FIFO
LD7  - Yellow 4 Audio Path OK  ON in Doppler Mode and audio 
present.
Lower Batch of LEDs
LD8 - RedBoard FailureNormally OFF
ON if errors detected
LD9 - GreenBoard OKNormally ON
OFF if errors detected
LD10 - YellowDSP2 Local Software RunningFlashing
LD11  - Yellow Audio Path OK ON in Doppler Mode and audio 
present.
LD12  - Red PipeLink Clock Problem OFF
ON if SDP clock is out of phase with  RFT clock.
NOTE: If system is working and LED is  ON: System OK. 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 56 Section 5-3 - a  Front-End Processor (FEP)
5-3-20 Image Port (IMP) Board
NOTE: Image Port is called “IMPORT” in some documents.
NOTE: The Image Port Board is only used in FEP1.  In units with FEP2, the RFI board replaces  the functionality of this board, see: 5-3-21 Radio 
Frequency Interface Board, RFI on page 5-61 .
NOTE: The Image Port Board is available in two versions for Vivid 7.  - IMP2, Part Number FB 200991, can be used in all units with FEP1. 
- IMP3, Part Number FC200120, can only be  used in units with FEP1 and BEP2 installed.
5-3-20-1 General Description The purpose of the Image Port is to capture processe d data live from the scanner, or video data from 
the VCR, and route this data to the appropriate locations.
The main functions of the Image Port board: 
• Capture data from RFT and SDP or the VCR (in pl ayback), store it into Image Port’s internal 
memory and then route th e resulting data to the BEP via the PC2IP bus. 
- Data from the RFT Card and the SDP Card are  transferred over the PipeLink in data packages 
called Frames, Packets and Tuplets, all depending on size of the package. 
- At the Image Port the Packet is collapsed. A Frame contains enough data to construct one  frame (e.g. one 2D frame), while one Tuplet c ontains enough data to construct one vector 
(e.g. one Color vect or). The size of the vect ors will depend on data type. 
- The Image Port demultiplexes the different ty pes of data, groups the same types and maps 
them into the proper ring buffers in the Image  Memory located on the Image Port 2 card.
- Video and S-VHS (both in PAL and NTSC format) from the VCR (or another video source) is  first digitized and then fed through a vide o multi-standard decoder providing decoded 
luminance (black and white) and chroma (color) data. 
• Pick Color Flow data from the Pi peLink bus and send it to the BEP via the PC2IP bus for processing 
in software on the BEP.
• Main Communication between BEP and the cards in  the Front-End Card Rack (via the PC2IP bus 
and the VME bus).
Up to eight of the data sets below can be stored  live simultaneously in eight different ring buffers in 
Image Port’s internal Image Memory. Typical size of the Image Memory is 256 MBytes.
•2D Tissue data
• Doppler data
• M-Mode Tissue data
• 2D Flow data
• M-Mode Color data
•Trace data
• Video Luminance data
• Video Chroma data
• Video (SVideo - PAL/NTSC, CVideo - PAL/NTSC)
• RF data 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 57
5-3-20 Image Port (I MP) Board (cont’d)
5-3-20-2 Location in the Unit
Figure 5-36   IMP Board - Location in Unit
IMP2 BoardFront of 
Scanner 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 58 Section 5-3 - a  Front-End Processor (FEP)
5-3-20 Image Port (I MP) Board (cont’d)
5-3-20-3 Inputs
5-3-20-4 Bi-directional Signals
5-3-20-5 Outputs
• Data to the Back-End Processor via PC2IP bus.
• Control signals and parameters via VME bus.
5-3-20-6 Power Distribution
 
5-3-20-7 Fuses None Table 5-46    Video and PipeLink Input Data 
INPUTDESCRIPTIONCONNECTION FROM:
PipeLink Live scan data SDP
Video Composite Video or Super VHS Video. 
Supported Formats:
SVHS - PAL
SVHS - NTSC PA L
NTSC VCR via Internal I/O
Table 5-47    Bi-directional Signals 
INPUTDESCRIPTIONCONNECTION FROM:
PC2IP bus
Data and control parameters between Front-End Rack and 
BEP. IMP to/from BEP
VME bus FEC, RFT, SDP
Table 5-48    DC Input Voltages 
INPUTDESCRIPTIONCONNECTION FROM:
+ 5 VdDC voltage, distributed via Motherboard (Backplane). 
The “d” in “5Vd” indicates that this voltage is used for digital  circuits. DC Power Supply via Backplane
- 5 Va DC output voltage, distributed via Motherboard 
(Backplane). 
The “a” in “-5Va” indicates that this voltage is used for  analog circuits. DC Power Supply via Backplane
GND Distributed via Motherboard (Ba ckplane) DC Power Supply via Backplane 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 59
5-3-20 Image Port (I MP) Board (cont’d)
5-3-20-8 Jumpers and Dip-switches
Figure 5-37   IMP, Jumpers and Switch
SW4
SW2
12
910
SW12
SW9
SW10 SW8
SW3
SW5
SW13 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 60 Section 5-3 - a  Front-End Processor (FEP)
5-3-20 Image Port (I MP) Board (cont’d)
5-3-20-9 LEDs
 
All the LEDs should be OFF in  Freeze (LD1 dimmed red light).
Figure 5-38   IMP2, LEDs
Table 5-49    IMP, LEDs
LED #LED COLORDESCRIPTIONNORMAL STATE
LD1  - Red CPU self test failure or reset Normally OFF (dimmed red light)
LD2  - Yellow CPU addressing local bus ON during scanning
OFF in Freeze
LD3  - Yellow Lit when firmware empties data FIFO 
to Image Memory ON during scanning
OFF in Freeze
LD4 - YellowLit when IMP2 registers/FIFOs are  accessed by the local CPUNormally OFF
LD5 - GreenBoard OK (used during manufacturing 
test).Normally OFF
LD6 - RedBoard Failure (used during manufacturing test).Normally OFF
LD1
LD2
LD3
LD4
LD5
LD6 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 61
5-3-21 Radio Frequency Interface Board, RFI
5-3-21-1 General Description The RFI board was introduced into the  manufacturin g in the 2nd half of 2003 together with the Front-
End Processor version 2 (FEP2).
The functionality of  the following boards are either implem ented on the RFI board or on the BEP:
• Front-End Controller board
• RF & Tissue board
• Spectrum Doppler Processor b oard (some filtering done on RFI, the rest is done by BEP).
• Image Port board.
Tasks Done by the RFI 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 Relay Board
• Doppler Audio D/A conversion
• Temperature Sensing for TEE probes
• Step Motor Control for TEE probes
• Temperature Sensing for circulated air
5-3-21-2 Signal Flow The digitized signals from the Beam Formers, are connected to the RFI module. The Digital Signal 
Processor on the RFI bo ard together with software on the BEP, perf orms the adequate signal 
conditioning for the different data ty pes; Tissue, Doppler and Color Flow. 
In addition, Doppler Audio Processing is done by  the RFI board. The Doppler Spectrum Processing is 
done by the BEP.
The RFI extracts Tissue Data, Spectrum Data and IQ  & Color Data from the digital data stream on its 
input and it also performs RF filtering  and different types of Tissue Processing. 
5-3-21-3 RF Processing Different types of RF processing is performed depending on later usage of the data; 
• RF Demodulation
• Digital Time Ga in Compensation 
• Filtering
• Decimation (data that are not neede d for the processing, is removed) 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 62 Section 5-3 - a  Front-End Processor (FEP)
5-3-21-4 Data Buffer After RF filtering, the data  is written into different sliding ring buff ers, dedicated to the different types of 
data. While data is written into the  buffers sample by sample in vector s, multiple samples from the same 
range (depth) can be read out. 
Both input addressing (start and length) and output  addressing (through output events) are controlled 
by the RFI board itself. 
5-3-21-5 Tissue Processing A number of different tissue processes are performed on this board: 
1.) First the signal amplitude is obtained by  detection. 
2.) Then the data is compressed to attenuate the  strong signals and amplify the low level echoes. 
3.) After compression,  Zone Stitching is performed. Zone Stitching is used to combine the (transmit) 
focal zones from different  vectors into one vector by weighting the zone transitions, and does only 
apply to phased/linear array probes where multiple  vectors can be collected in the same direction. 
For M-Mode,  peak detection  and edge enhancement  is implemented. 
4.) Finally an offset can be added to  the signal and clipping is performed. 
5-3-21-6 Color Flow Processing No Color Flow processing is performed here, exc ept for the RF demodulation previously mentioned. 
The data used for Color Flow is tagged with the appropriate headers and tails and sent to the Back-End 
Processor (BEP).
5-3-21-7 Doppler Data Doppler Data is high pass f iltered, to remove strong low frequencies returned from wall motion, valves 
and leaflets, on RFI and then sent  to the BEP and to Audio Circuitry.
5-3-21-8 System Temperature Surveillance The RFI board monitors the temperature in the airflow at  the air intake and in the airflow at the air outlet.
• If the temperature inside the system (at the air outlet) increases to 60 
oC, a “High System 
Temperature” error will be displayed on the screen.
• If the temperature increase to 65 
oC, the system will start  an automatic shutdown.
The temperature will normally  be recorded at startup, and then repeated every hour. This frequency will 
increase if the temperature exceeds the limit.
The temperature measurements make it possible to monitor the environmental conditions 
(temperatures) for the scanner and prevent overheating.
The temperature measurements are available in a te mperature log available via the Service Platform. 
It is also available at D:\log\logfile-temp.txt. 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 63
5-3-21-9 Probe Management • Control the selection of a probe connector
• Sense the Probe type
• Sense the Scan Plane Angle on MPTE and PAMPTE probes
• Sense Probe Temperature
• Turn off the probe if temperature exceed maximum temperature. The temperature references are set to 41.3 
oC and 43.0 oC.
• Turn off the probe if temperature reading falls below minimum temperature  The minimum temperature references is set to15 
oC. A temperature reading as low as 15 oC 
indicates a probe temperature sensing error.
5-3-21-10 TX Power Supply Management The TX Power supply has two separate voltage  outputs, TX Power Supply #1 (TX1) generates 
voltages for 2D imaging and TX Power Supply #2 (TX2) generates 
voltages for Doppler operation (CF, PW and CW).
The RFI set the voltage level for the two TX Power Supply outputs, TX1 and TX2. 
The RFI also measure the voltage leve ls and current drain from the two TX outputs. It will turn off power 
to the probe if any of the values exceed the limit for a given mode.
5-3-21-11 Location in the Unit
Figure 5-39   RFI board: Location in Unit
FEP2RFI BOARD
FRONT OF 
SCANNER 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 64 Section 5-3 - a  Front-End Processor (FEP)
5-3-21-12 DC Voltages
  
5-3-21-13 Input Signals 
 
5-3-21-14 Bi-directional Signals
 
Table 5-50    DC Input Voltages 
INPUTDESCRIPTIONCONNECTED TO
+ 3.3 Vd DC output voltage, distributed via Motherboard 
(Backplane). 
The “d” indicates that this volt age is used for digital circuits.DC Power Supply via Backplane
+ 5 Vd DC output voltage, distributed via Motherboard 
(Backplane). 
The “d” indicates that this volt age is used for digital circuits.DC Power Supply via Backplane
- 5 Va DC output voltage, distributed via Motherboard 
(Backplane). 
The “a” indicates that this voltage is used for analog circuits. DC Power Supply via Backplane
+ 15 Va
DC output voltage, distributed via Motherboard 
(Backplane). 
The “a” indicates that this voltage is used for analog circuits.
DC Power Supply via Backplane
- 15 Va
DC output voltage, distributed via Motherboard 
(Backplane). 
The “a” indicates that this voltage is used for analog circuits.
DC Power Supply via Backplane
GNDDistributed via Motherboard (Backplane)DC Power Supply via Backplane
Table 5-51    DC Voltages generated locally on RFI (regulated from +3.3 Vd)
VOLTAGEDESCRIPTIONCONNECTED TO
+ 2.5 V Generated from +3.3 Vd. On-board use only. N/A
+ 1.5 V Generated from +3.3 Vd. On-board use only. N/A
+1.4 V Generated from +3.3 Vd. On-board use only. N/A
-2 VGenerated from -5 Va. ECL termination voltage.Backplane
Table 5-52    Signal Inputs 
INPUTDESCRIPTIONCONNECTION FROM
PRPRES Probe Present  Relay Board via Backplane
High Voltage V & I  Sense Senses the voltages and currents from the TX Supply TX Power via Backplane
MLA data (2 buses) Digitized received ultrasound signal s from Beam Formers Beam Formers via Backplane
Table 5-53    Bi-directional Signals 
NAMEDESCRIPTIONCONNECTION TO/FROM
PC2IP COMMUNICATION WITH BEP PC2IP (BEP)
FEBUS COMMUNICATION WITH THE OTHER BOARDS IN FEP
I
2C BUSES FOR TEMPERATURE AND PROBE ID