User`s manual

User’s Manual 43
C.2 Jumper-Selectable Voltage Settings for All Boards
Before using the LCD/keypad module, set the voltage for 5 V by not using the jumper
across any pins on header J5 as shown in Figure C-2.
Figure C-2. LCD/Keypad Module Voltage Settings
NOTE: Older LCD/keypad modules that do not have a header at J5 are limited to operate
only at 5 V, and will work with the RCM3000 Series Prototyping Board. The older
LCD/keypad modules are no longer being sold.
C2
R2
R1
C3
D2
C1
D1
C5
U2
JP1
R3
U1
C4
C10
CR1
R6
C13
C12
R7
R8
R25
R26
R11
R13
R14
R10
R9
R12
R15
R18
Q8
R16
Q5
R21
Q2
U5
J2
DISPLAY
BOARD
J4
KP1
R17
Q4
R22
Q6
R23
Q7
R20
Q3
R19
U7
C14
R24
C15
C16
U6
U4
C7
C9
U3
LCD1
C11
R4
R5
C6
J1
Q1
J5
C17
RN1
J5
LP3500
2.8 V
OTHER
3.3 V
1
2
3
4
n.c. = 5 V
LCD/Keypad Module Jumper Configurations
Header
Description
Pins
Connected
Factory
Default
J5
2.8 V
3.3 V
5 V
12
34
n.c.
×
J5
1
2
3
4
Part No. 101-0541