Troubleshooting
Connector Pin Descriptions
6-14
Model 48
i
Instruction Manual
Thermo Fisher Scientific
Connector
Label
Reference
Designator
Pin
Signal Description
15
NC
16
+5V
Z/S J13 1
+24V
2
Zero/Span
Solenoid
Control
SAMPLE J14
1 +24V
2
Sample Solenoid Control
SPAN1 J15
1
+24V
2
Converter Solenoid Control
SPAN2 J16
1
+24V
2
Span 2 Solenoid Control
DATA J17 1
Ground
2
+RS485 from Motherboard
3
-RS485 from Motherboard
24V IN
J18
1
+24V Input
2
Ground
FAN J19 1
+24V
(Fused)
2
Ground
FAN SW1
J20
1
+24V (Fused)
2
Fan
Control
FAN SW2
J21
1
+24V (Fused)
2
Fan
Control
Table 6–5.
Front Panel Board Connector Pin Diagram
Connector
Label
Reference
Designator
Pin
Signal Description
MOTHERBOARD J1
1
Ground
2
Ground
3
LCLK – LCD Signal
4
Ground
5
Ground
6
LLP – LCD Signal
7
LFLM – LCD Signal
8
LD4 – LCD Signal