User`s manual

OP7100 Hardware
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Figure 3-6 shows the jumper settings for the contrast control options.
Figure 3-6. Contrast Control Jumper Configurations
Background
The OP7100 comes factory-configured to display blue characters on a
white (positive) background. The jumpers on header JP1 may be rear-
ranged as shown in Figure 3-7 to display white characters on a blue
(negative) background.
Figure 3-7. LCD Background Jumper Settings
JP2
JP2
Software
Contrast
Adjustment
Manual
Contrast
Adjustment
FD
FD
OP7110
3
2
1
3
2
1
OP7100
FD
Positive Background
(white with blue graphics)
Negative Background
(blue with white graphics)
10
12
JP1
1
2
3
4
5
6
7
8
9
11
10 12
JP1
1
2
3
4
5
6
7
8
9
11
JP1
U4