Service manual

GE MEDICAL SYSTEMS PROPRIETARY TO GE
D
IRECTION , REVISION
5-2 Section 5-1 - Overview
5-1-2 General Information
• LOGIQ™ 3 is a phased and linear array ultrasound imaging scanner. It has provisions for analog
input sources like ECG and phono.
• The system can be used for:
- 2D Black-and-White imaging
-2D Color Flow
- M-Mode Black-and-White imaging
- Color M-Mode
- Pulse Doppler
- Different combinations of the above modes
• LOGIQ™ 3 is a 192 channel digital beam forming unfolded system that can handle up to 128
element linear probes. It uses analog and digital delay to focus the beam. The analog delay is short
and fixed. The digital delay is used for long delay and dynamic focus. This system also features
many advanced image processing controls.
• Signal flow travels from the Probe Connector Panel to the Front End, to the Mid Processors and
Back-End Processor, and finally to the monitor and peripherals.
• System configuration is stored on a hard disk and all necessary software is loaded from the hard
disk on power up.
5-1-3 System Features
The key design goals of this system are:
- High Image Quality
- Increased User Productivity
- Multiple Clinical Applications
- Planned Upgrade ability
- High Mobility
5-1-4 Types of Applications
The LOGIQ™ 3 is a general imaging system which supports many clinical uses. Scan and display
parameters may be user selected to default to desired values for each application. The system presets
many parameters to clinically determined, optimal values.
- Radiology
- Cardiology
-OB/GYN
- Vascular
The LOGIQ™ 3 system can be divided into an analog signal processing section, a digital signal
processing section, and the microprocessor driven system control section, which controls the system
based on operator commands and system status information.