AOpen AOI-702U Dokumentacja Strona 132
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Oceniono. / 5. Na podstawie oceny klientów
Operations | Reference Manual
FocalSpot, Inc. | www.FocalSpot.com
Page | 132
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By grabbing too much of the background in combination with a low threshold setting (~550); small dark bodied
discreet components (in combination with a dark FR4 material background); may cause false calls, as there is
not be enough difference in coloration (digital information) to catch presence/absence. Using a bare board is
VERY IMPORTANT when thresholds are set below 600 to fine-tune and eliminate false-calls or escapes.
HowtoFixBadTemplates
Inspect your templates and thresholds for all parts that are failing the bare board test. Make certain that the
existing templates are as ideal as possible. It may only take one bad template to throw off the test for a specific
part type. Delete any templates that display bad structure.
Dark 0402 on Dark FR4 Delete all bad templates Never lower than 550
Top (bad template)
Bottom (better template)
AlternateROITrainingMethod
Try increasing the region of interest (ROI) to encompass more of the part body and less of the background; or
include a small portion of the solder and a tight area of background for (0402 dark on dark) device types.
NOTE: Delete any poorly created templates.
Dark 0402 on Dark FR4 ROIs Good vs. Bad Alternate ROI Methods
Good
Not good
or
- Operations & 1
- Reference Manual 1
- Revision History 2
- Page 4
- Page 6
- Page 8
- Page 10
- Page 12
- Do Not Block the Left Edge 13
- Page 14
- 1 Two (2) populated PCBs 15
- Page 16
- Select Area 17
- Processing Notice 17
- Page 18
- Added Region of Interest 19
- Page 20
- Page 22
- Page 24
- Page 26
- Page 28
- Page 30
- ImportingCADFiles 31
- Page 32
- Page 34
- ImportingBOMData 35
- Pick List Key Description 36
- Page 38
- ComparingBOMtoCXFData 39
- ReviewComparisonResults 39
- Page 40
- Page 42
- Page 44
- Page 46
- Page 48
- Page 50
- File > New Board 52
- Scanner / Scanner Setup 52
- Scan Preview Window 53
- Page 54
- Main Display Window 55
- Alignment Prompt 56
- Page 58
- Task Completion Dialog Box 59
- Layout Viewer Display Screen 60
- File Browser 61
- Short Cut Keys Action 63
- Layout Viewer > Top Menu 64
- Y axis Polarity Indicators 65
- X axis Polarity Indicators 65
- Page 66
- Page 68
- LayoutViewerOperation 69
- Page 70
- Page 72
- Page 74
- Page 76
- SaveBoardSetup(AOIMode) 77
- SaveBoardImage(AOIMode) 78
- Page 80
- Page 82
- Page 84
- AOI Mode Inspection Logic 85
- Page 86
- AOI Mode Inspection Report 87
- Page 88
- Page 90
- Page 92
- Function 93
- Page 94
- Page 96
- Page 98
- SCANNER 100
- POSITIONAL 101
- FUNCTIONS 101
- Page 102
- Page 104
- Page 106
- Page 108
- Button Function 110
- Page 112
- Page 114
- Page 116
- Page 118
- Page 120
- Page 122
- Page 124
- Notepad 125
- Page 126
- Page 128
- Page 130
- Dependency 130
- HowtoFixBadTemplates 132
- CentroidPosition 133
- TrainedPosition 133
- FoundPosition 133
- StepThruDevices 134
- Page 136
- Lower Right Upper Left 138
- Page 140
- Page 142
- Page 144
- Centre on PN > 146
- Component List 146
- Page 148
- Page 150
- Page 152
- Page 154
- Page 156
- Page 158
- Subdirectory 159
- File Remarks 159
- Items to Send 161
- File Type Location 161
- Page 162
- Page 164
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