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