Thermo 42i - Temperature Control Board Connector Pin Descriptions

Troubleshooting
Connector Pin Descriptions
Thermo Electron Corporation Model 42i Low Source Instruction Manual 6-21
4 +5V
5 Ground
6 Measurement Frequency Output
7 Amplifier Zero Adjust Voltage
8 SPI Input
9 SPI Clock
10 SPI Board Select
Table 6-9. Temperature Control Board Connector Pin Descriptions
Connector
Label
Reference
Designator
Pin Signal
Description
INTERFACE J1 1 Bench Temperature Input
2 Ground
3 -15V
4 Converter Heater On/Off
5 Converter Temperature Input
6 +15V_PWR
AC INPUT J2 1 AC-HOT
2AC-NEUT
BENCH J3 1 Bench Heater AC Output
2 Bench Heater AC Return
3 Ground
4 Bench Thermistor
CONVERTER J4 1 Ground
2 Converter Heater AC Output
3 Converter Heater AC Return
CONV TC J5 1 Converter Thermocouple TC
2 Converter Thermocouple TC+
SS TEMP J6 1 SS Temperature Range Jumper A
2 SS Temperature Range Jumper B
Table 6-8. Input Board Connector Pin Descriptions, continued
Connector
Label
Reference
Designator
Pin Signal
Description