GE Logiq 7 Service Manual

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
Section 5-8 - Monitor Video Specification 5-45
5-8-2-4 NTSC EIA
5-8-3 SVHS and Composite Video
5-8-3-1 Basic DC Parameters
GeneralSVHS-lumaSVHS-cromaCompositeRGBB&W
Line/field: 525/60
FH: 15734 HzFV: 59.94 Hz
Bandwidth: Min.  4.2MHz (luma) Signal: 92.5 IRE 
(from black level)  100% amplitude
Blanking setup:  7.5 IRE
Sync: 40 IRE Burst amplitude: 
+/- 20 IRE, 9 
cycles
Fsc: 3.579545  MHz 100% saturation Summed luma 
and croma Signal:...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
5-46Section 5-8 - Monitor Video Specification
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GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
Section 6-1 - Overview 6-1
Chapter 6
Service Adjustments
Section 6-1
Overview
6-1-1 Purpose of this chapter 6
This section describes how to test and adjust the scanner. These tests are optional. You may use them 
to check the system for errors.
Table 6-1   Contents in chapter 
SectionDescriptionPage Number
6-1
Overview 6-1
6-2 LV Unit Adjustments (For BT03 or lower) 6-2
6-3 Caster Brake/Swivel Function Adjustments 6-4
6-4Reloading the...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
6-2Section 6-2 - LV Unit Adjustments (For BT03 or lower)
Section 6-2
LV Unit Adjustments (For BT03 or lower)
This system contains three power supply modules; LV unit. The LV unit for BT04 or later can not be 
adjusted.
6-2-1 Access to Adjustments
1.) Remove the LV unit:
a.) Remove the left side cover.
b.) Remove the LV unit cover.
c.) Remove the bracket, then pull out the LV unit Assy with the cables connected.
Figure 6-1   LV Unit Assy...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
Section 6-2 - LV Unit Adjustments (For BT03 or lower) 6-3
6-2-2 Adjustments Procedures
1.) Using the following VRs, DC output can be adjusted.
Table 6-2   DC Output Specification for LV Unit
VRSpecifications
VR1
3.4V +/- 34mV
VR25V +/- 50mV
VR36V +/- 60mV
VR4-6 V +/- 60mV
VR512V +/- 120mV
VR6-12V +/- 120mV
Figure 6-2   VRs for Adjusting DC Output
VR4 for -6V VR2 for +5V
VR3 for +6V
VR6 for -12V VR1 for +3.4V
VR5 for +12V
OR
-6V
+12V
+5V...

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
6-4Section 6-3 - Caster Brake/Swivel Function Adjustments
Section 6-3
Caster Brake/Swivel Function Adjustments
6-3-1 Brake Function Adjustment
The LOGIQ 7 contains front and rear brake lock adjusters. They are separately adjusted using the 
similar method.
Figure 6-3   Locations of Brake Lock Adjusters
Front Brake Lock Adjuster Rear Brake Lock Adjuster 

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
Section 6-3 - Caster Brake/Swivel Function Adjustments 6-5
6-3-1 Brake Function Adjustment (cont’d)
1.) Locate the adjuster nut on the caster linkage joint.
2.) Rotate the adjuster until the caster lock lever comes center as shown. Figure 6-4   Adjuster Nut Location
Figure 6-5   Rotating Adjuster
Adjuster Nut
Center lock lever 

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
6-6Section 6-3 - Caster Brake/Swivel Function Adjustments
6-3-1 Brake Function Adjustment (cont’d)
3.) After completion of adjustment, press on the brake and check its function and location of the boss,  connected to the caster lock arm.
Figure 6-6   Brake Function Check
Example: GOOD
Boss of the front caster in place, and brake 
properly adjusted. Example: NO GOOD
Boss of the front caster NOT in place, and brake 
NOT properly adjusted. 

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
Section 6-3 - Caster Brake/Swivel Function Adjustments 6-7
6-3-1 Brake Function Adjustment (cont’d)
4.) Adjuster of the rear caster is also located on the caster linkage joint as shown.
5.) Turn the adjuster so that the caster lock lever is in the ceter position, as same as the front caster,  and the link is securely in place. Figure 6-7   Rear Caster Adjuster Location
Adjuster Nut
Link
Rear Caster
Lock Arm
Boss 

GE HEALTHCARE
DIRECTION 2286865, REVISION 14LOGIQ™ 7 SERVICE MANUAL
6-8Section 6-3 - Caster Brake/Swivel Function Adjustments
6-3-2 Swivel Function Adjustment
The LOGIQ 7 contains one swivel lock adjuster. It can be adjusted using the similar method as brake 
function adjustment described above.
Figure 6-8   Locations of Swivel Lock Adjuster
Swivel Lock Adjuster