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F-36
TROUBLESHOOTING & REPAIR
F-36
LED Number Functions Indicated By PC Board LEDS
1A +15VDC Analog Supply Present
1B -10VDC Analog Supply Present
1C Down Field Voltage Applied
1D Up Field Voltage Applied
1E Armature Voltage Applied
1F 115VDC Relay Supply Present
7A +15VDC Logic Supply Present
7B "Start" Switch Pressed
7C "Stop" Switch Pressed
7D Welding Current Present
7E Signal to Apply Down Field Voltage
7G Signal to Operate Flux or Water Solenoid
7H Signal to Operate Travel Circuit
7J "Inch Down" Switch Pressed
7K Signal to Operate Power Source Output Contactor
PC BOARD LED (LIGHT) DEFINITIONS
NA-5
LED LIGHT LOCATIONS
OILCG
LED 7B
LED 7C
LED 7D
LED7A
NA-5
LED 7J
LED 7K
LED 7G
LED 7H
LED 7E
LED LIGHT LOCATIONS
NA-5
POWER
LED 1F
LED 1B
LED 1D
LED 1C
LED 1E
LED 1A
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