GE MEDICAL SYSTEMS
D
IRECTION 2392751-100, REVISION 3VIVID™ 4 SERVICE MANUAL
Chapter 5 - Components and Function (Theory) 5-7
Section 5-4
Front End
5-4-1 General Information
The Front End includes all the boards in the Front End Card Cage, as follows:
• Front End Board
•MUX Board
• BF64 (Beamformer Board)
• RFI (Radio Frequency Interface Board)
OR
* FEC (Front End Controller Board)
* RFT (Radio Frequency & Tissue Board)
* IMP (Image Port )
The Front End Crate includes five (or seven) components, as described in the following sections:
• Front Board Assembly (FB) on page 5 - 16.
• MUX Board on page 5 - 18.
• Beamformer Board (BF) on page 5 - 19
• Radio Frequency Interface (RFI) Board on page 5 - 21
OR
* Front End Controller Board (FEC) on page 5 - 26.
* RF and Tissue Processor Board (RFT) on page 5 - 27.
* Image Port Board (IMP) on page 5 - 28.
• Back Plane Board (Motherboard) on page 5 - 28.
A block diagram of the Front End Crate is shown in the following figures:
Systems with RFI Configuration - see Figure 5-5 on page 5-8.
Systems with RFT Configuration - see Figure 5-6 on page 5-9.
For a detailed description of the Front End Crate components, refer to Front End DC Power Distribution
on page 5 - 49.
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