Table of Contents
Advertisement
2.0
LOGICAL STRUCTURE AND FUNCTION
2.1
Module Block Diagram
Figure 1 illustrates the major components of the serial option Daystar Nova module. The module provides
means for an external viewing angle adjustment potentiometer (V
RESET and self–test switches at Pins 3 and 5. The external viewing angle adjustment potentiometer should be
connected to the same +5 Volt supply as the display module. RESET and TEST pull down to ground to
activate the function. All three inputs may be left open if not used. The V
preset the viewing angle. The LCD Controllers are microprocessor units (MPU) designed specifically to control
all multiplexing and character decoding functions for the LCD display.
Reset
Test
GND
V
BIAS
V
BIAS
R
X
Backlight
Option
2.1.1 Signal Description
Signal Name
RESET
TEST
V
TP
BIAS
V
Adj.
BIAS
R
X
R
Rtn
X
V
CC
GND
Industrial Electronic Engineers, Inc.
Van Nuys, California
Microprocessor
3
5
8
+5V
7
TP
6
Adj
4
R
1
Serial
X
Rtn
2
Receiver
–
10
+
11
Figure 1
Number Of Lines
1
1
1
1
1
1
2
7
Adj.) at Pin 4, and connections for optional
BIAS
LCD
Controller
#1
LCD
Controller
#2
Temperature
Compensation
EL Backlight
Module Block Diagram
Input/Output
I
I
O
I
I
I
–
–
SIZE
CODE IDENT NO.
A
05464
SCALE
N/A
REV B
test point is used at the factory to
BIAS
Column Drivers
LCD
Cell
Column Drivers
+5V
View Angle
Adjust
6" Flying Leads
Connected
MPU
MPU
Temp. Comp. Ckt.
Temp. Comp. Ckt.
Serial Receiver
Serial Receiver
Power
–
S03858–21–0205
SHEET 6
Advertisement
Table of Contents
