Thermo Scientific 42i Instruction Manual page 171

Thermo Fisher Scientific
Connector Reference
Label Designator
LCD DATA J2
KEYBOARD J3
LCD BACKLIGHT J4
Pin Signal Description
25 Keypad Col 2 Select
26 Keypad Col 1 Select
27 Keypad Col 4 Select
28 Keypad Col 3 Select
29 Ground
30 Ground
31 Ground
32 Ground
33 +24V
34 +24V
1 LD0_5V – LCD Signal
2 LD1_5V – LCD Signal
3 LD2_5V – LCD Signal
4 LD3_ONOFF_5V – LCD Signal
5 LCD_ONOFF_5V – LCD Signal
6 LFLM_5V – LCD Signal
7 NC
8 LLP_5V – LCD Signal
9 LCLK_5V – LCD Signal
10 +5V
11 Ground
12 -25V
13 LCD Bias Voltage
14 Ground
1 Keypad Row 1 Input
2 Keypad Row 2 Input
3 Keypad Row 3 Input
4 Keypad Row 4 Input
5 Keypad Col 1 Select
6 Keypad Col 2 Select
7 Keypad Col 3 Select
8 Keypad Col 4 Select
1 +5 Supply
2 NC
Model 42i Trace Level Instruction Manual
Troubleshooting
Connector Pin Descriptions
6-17