GE Vivid 7 Service Manual

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 5
5-2-7 Block Diagram - Units with Fr ont-End Card Cage, version 2 (FEP2)
NOTE: In this block diagram, the BEP2.2 is illustrated. 
Figure 5-3   Vivid 7 Simple Block Diagram - Units with Front-End Card Cage, version 2 (FEP2)
FRONT END PROCESSOR
PROBES
XDBUS
 DOPPLER
ATX POWER SUPPLY UPS
AC POWER
OP I/O PANEL17 Monitor
USER INTERFACE
SONY COLOR PRINTERUP-2900MDPC2IO
PCVIC
PC...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 6 Section 5-3 - a  Front-End Processor (FEP)
Section 5-3a 
Front-End Processor (FEP)
5-3-1 General Description
The electronics in the Front-End Card Cage is also called the Front-End Processor (FEP). 
Two versions of the Front-End Card Cage are in use;
• Version 1 (FEP1) was used from introduction of Vivid 7 until 2nd half of 2003
• Version 2 (FEP2) was introduced 2nd half of 2003
5-3-2 FEP1
FEP1 has eight  different types of...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 7
5-3-3 FEP2
• In units with FEP2, a new card, the  Radio Frequency Interface (RFI) card replaces four of the cards 
used in FEP1. 
The cards used for FEP2 units are listed in  Table 5-3 Front-End Processor Cards used in FEP2 
on page 5-7 .
Table 5-3    Front-End Processor Cards used in FEP2 
SHORT  NAME
COMPLETE NAMECOMMENT
RLY RELAY BOARD
TX TRANSMITTER BOARD 2X TO BE USED PER...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 8 Section 5-3 - a  Front-End Processor (FEP)
5-3-4 FEP’s Location in the Unit
5-3-5 Input Signals
• RX signals from probes
• Physio (ECG/Phono)
5-3-6 Bidirectional Signals
PC2IP bus to BEP
5-3-7 Output Signals
• TX signals to probe
• Doppler and Color Flow Data to Back-End Processor for digital signal processing
• Digital Video Data to Back-End Processor
5-3-8 Fuses, Jumpers, Dip-switches and LEDs
See descriptions  for each...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 9
5-3-9 Transmitter and Receiver Subsystem
5-3-9-1 Transmitter Signal Path - Units With One TX Board • The Front-End Controller board (FEP1) or the Radio Frequency Interface board (FEP2) loads scan parameters via the FE_BUS into local RAM on the TX board and on the BF boards. 
The scan parameters includes probe dependant st eering and focusing delay for a certain scan 
pattern....

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 10 Section 5-3 - a  Front-End Processor (FEP)
5-3-9-2 Transmitter Signal Path - Units With Two TX Board • The Radio Frequency Interface board (RFI) loads scan parameters via the FE_BUS into local RAM on the TX boards and on the BF boards. 
The scan parameters includes probe dependant st eering and focusing delay for a certain scan 
pattern. Thus, when the Radio Frequency Interfac e board goes through a scan sequence, it loads...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 11
5-3-9 Transmitter and R eceiver Subsystem (cont’d)
5-3-9-3 Phased, Linear and Convex Array Probes
• The Phased, Linear and Convex array probes consis t of several identical transducer elements (e.g. 
64, 128, 192). 
• Three probes can be connected to the system at the same time. The probe connectors are  physically located on the Relay Board, where on e of them is selected and...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 12 Section 5-3 - a  Front-End Processor (FEP)
5-3-9-5 Signal Control • The Front-End Controller (FEC) board (FEP1) or the Radio Frequency Interface (RFI) board (FEP2) controls the transmitter and receiver boards. FE C/RFI loads all parameters to the TX and Beam 
Former RAMs, it reads the probe  identification, selects probe connector on Relay board and 
controls the high voltage multiple xer in linear and convex probes.
In...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 5 - Components and Functions (Theory) 5 - 13
5-3-9-6 Signal Path Out from the Beam Former Boards • The output from the BF#2’s Beamadders is fed  to the RF and Tissue Processor board (RFT) on 
units with Front-End version 1, and to the Radio Frequency Interface (RFI) board on units with 
Front-End version 2. Figure 5-9   Receiver Signal Path
RFT - Radio 
Frequency & 
Tissue
SDP - 
Spectral 
Doppler
IMP - 
Image Port...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
5 - 14 Section 5-3 - a  Front-End Processor (FEP)
5-3-10 Transmitter Board, TX128- 5 (version introduced for BT’05)
5-3-10-1 General Description
The Transmitter board (TX128) contains 128 individually controlled transmit channels and provides 
transmit pulses via the XDBUS board to the Relay boa rd and then to the transducer array (the probes).
Frequency-, delay- and pulswidth parameters for the TX128 board are received on the...