20-101-0504 Rabbit Semiconductor, 20-101-0504 Datasheet - Page 133
20-101-0504
Manufacturer Part Number
20-101-0504
Description
ACCY CABLE&MOUNTING HDWR SR9050
Manufacturer
Rabbit Semiconductor
Datasheet
1.101-0437.pdf
(184 pages)
Specifications of 20-101-0504
Accessory Type
Smart Star Cable
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
SR9500
Other names
101-0504
101-0504
101-504
101-504
101-0504
101-504
101-504
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B.2 Contrast Adjustments for All Boards
Starting in 2005, LCD/keypad modules were factory-configured to optimize their contrast
based on the voltage of the system they would be used in. Be sure to select a KDU5V
LCD/keypad module for use with the Smart Star — these modules operate at 5 V. You may
adjust the contrast using the potentiometer at R2 as shown in Figure B-3. LCD/keypad
modules configured for 3.3 V should not be used with the 5 V Smart Star because the
higher voltage will reduce the backlight service life dramatically.
You can set the contrast on the LCD display of pre-2005 LCD/keypad modules by adjust-
ing the potentiometer at R2 or by setting the voltage for 5 V by removing the jumper that
was installed at the factory across pins 1–2 on header J5 as shown in Figure B-3. Only one
of these two options is available on these older LCD/keypad modules.
User’s Manual
NOTE: Older LCD/keypad modules that do not have a header at J5 or a contrast adjust-
Figure B-3. LCD/Keypad Module Voltage Settings and Contrast Adjustment
ment potentiometer at R2 are limited to operate only at 5 V, and will work with the
Smart Star. The older LCD/keypad modules are no longer being sold.
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