GE Vivid 7 Service Manual

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 6 - Service Adjustments 6 - 1
Chapter 6
Service Adjustments
Section 6-1
Overview
6-1-1 Purpose of this Chapter
This section describes how to adjust the scanner. 
6-1-2 Contents in this Chapter
Section 6-2
Date and Time Adjustments
Please refer to:  3-7-1-3 Date and Time Adjustments on page 3-29 .
Section 6-3
Daylight Saving Time (DST) Adjustments
From the factory, the automatic  DST function has been disabled. 
Manually...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
6 - 2  - 
Section 6-5
LCD Monitor Adjustments
6-5-1 Overview
This procedure describes how to adjust the LCD moni tor for use with Vivid 7, software version v6.x and 
newer. It also describes how to set up the Vivid 7 to the factory default for LCD use.
The LCD adjustment procedure contains two main tasks: 
1.) Adjust LCD monitor
2.) Select gamma curve
6-5-2 Cautions and Warnings
N/A
6-5-3 Access to Adjustments
The adjustments of...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 6 - Service Adjustments 6 - 3
Section 6-6
CRT Monitor Adjustments
6-6-1 Cautions and Warnings
N/A
6-6-2 Access to Adjustments
The adjustments of the monitor is done via c ontrols (buttons) on front of the monitor.
6-6-3 Degaussing the CRT Monitor
Degaussing refers to the process of removing magnetic-field effects from the monitor. Operation of the 
monitor within a magnetic field may adversely effect co lor purity....

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
6 - 4 Section 6-6 - CRT Monitor Adjustments
6-6-4 Adjusting the CRT’s  Contrast and Brightness
The display monitor’s contrast and brightness contro ls may need periodic adjustment due to changes 
in ambient light. They are adjusted from the three buttons on the front part of the display monitor.
6-6-4-1 Adjust Contrast The factory default Contrast settings:
• BT03/04/05/06 units:  Contrast = 65% 
• BT02 units: Contrast = 100%...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 6 - Service Adjustments 6 - 5
6-6-4-2 Adjust Brightness The factory default Brightness settings:
• BT03/04/05/06 units: Brightness = 32% 
• BT02 units: Brightness = 40%
Follow the steps below to adjust  the monitor’s brightness setting:
1.) Press the Left button on the display monitor twice (see  Figure 6-1 Adjust Contrast and Brightness 
on page 6-4 ).
2.) Press the Right button to increase brightness.
3.) Press the Center...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
6 - 6 Section 6-7 - Front-End Alignm ent Procedure (Beamformer Calibration)
Section 6-7
Front-End Alignment Procedure (Beamformer Calibration)
6-7-1 Introduction
Each A/D converter on the BF boards has an offset  error (i.e. gives an output code different from 00 Hex 
with an input voltage of 0V). This offset error may  cause artifacts in some modes of operation (2D and 
TVI) due to inaccuracy in the demodulation process.  In order...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 6 - Service Adjustments 6 - 7
6-7-3 Front-End Alignment Procedure
1.) Disconnect all connected probes.
2.) Turn on the Vivid 7.
3.) Press  CONFIG
 (F2) and log on as  adm, see  4-2-4 Log On to the System as ‘ADM’ on page 4-12 .
4.) Select  System
5.) Select  DC Offs. Cal  to start the DC Offset calibration of the Beam Formers (Front-End Alignment).
6.) Wait for the calibration to take place. 
Front-End Alignment Description...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
6 - 8 Section 6-7 - Front-End Alignm ent Procedure (Beamformer Calibration)
6-7-3 Front-End Alignment Procedure (cont’d)
NOTE: The LEDs displayed in the below individual b oard sections are relevant when the system is in 
the default setting (2D-mode).
8.) Restart Vivid 7. 
NOTE: Always reboot the scanner after Front-End Alig nment is finished and verify proper operation.
NOTE: Do Not select “Cal Reset” af ter performing...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 6 - Service Adjustments 6 - 9
Section 6-8
Direction Lock and Brake Adjustment
6-8-1 Front Caster Brakes  Adjustment Procedure
6-8-1-1 Manpower
2 persons
6-8-1-2 Tools • Hexagon key 3/32” inch
• Phillips screw driver size 2
6-8-1-3 Preparations 1.) Set Rear Brakes to pr event system from rolling.
2.) Remove Front Bumper , see  Front Bumper Removal Procedure on page 8-100 .
6-8-1-4 Front Caster Brakes Adjustment
1.) Use a...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
6 - 10 Section 6-8 - Direction Lock and Brake Adjustment
6-8-2 Direction Lock Adjustment Procedure
6-8-2-1 Manpower 1 person, 30 minutes
6-8-2-2 Tools Open end wrench, 13 mm
6-8-2-3 Preparations 1.) Block Rear Casters.
2.) Push down Direction Lock Pedal.
3.) Turn Casters until they locks  in forward pointing position.
6-8-2-4 Direction Lock Adjustment 1.) Loosen the retaining nuts on the brake rods on both Front Casters to allow...