Table of Contents
Advertisement
10.5 DISPLAY TEST POINTS
Refer to Section 5.6 for microprocessor and display diagnostic procedures
Pin
Test Point
TP14
Pin 1
TP13
Pin 2
TP13
Pin 3
TP12
Pin 4
TP11
Pin 5
TP10
Pin 6
TP9
Pin 7
TP8
Pin 8
VOLTAGE TESTS:
Negative Test Lead
TP13
TP13
TP13
TP13
TP11
TP11
TP8
10.6 WIRING SCHEMATICS
The wiring schematics are provided on the following pages.
NOTE
Color
Black
+12 Vdc for Display backlighting and indicator LED s
White
Ground for Backlighting and indicator LEDs
Red
Ground for Backlighting and indicator LEDs
Green
+5 Vdc for Display processor and LCD
Brown
Display ground
Orange
TX the serial communications from the control to the display
Blue
RX the serial communications from the display to the control
Yellow
Display ground
Positive Test Lead
TP14
TP12
TP11
TP8
TP14
TP8
TP14
10−13
Description
Voltage Reading
12
5
0
0
12
0
12
62-11389
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
