TROUBLESHOOTING | ||
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| Observe all Safety Guidelines detailed throughout this manual |
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PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Pressing the trigger key has no | 1. The connector from the control |
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effect while not welding. |
| p.c. board to the display p.c. |
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| board or the connector from the |
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| display p.c. board to the keypad |
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| are loose or improperly inserted. |
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| 2. Damaged keypad |
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| 3. | Damaged display p.c. board. |
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| 4. | Damaged control p.c. board. |
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Pressing the control key has no | 1. Make sure that the DIP switches |
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effect while not welding. |
| on the control p.c. board are not |
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| set for security mode. |
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| 2. | The connector from the control |
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| p.c. board to the display p.c. |
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| board or the connector from the |
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| display p.c. board to the keypad |
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| are loose or improperly inserted. |
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| 3. Damaged keypad |
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| 4. | Damaged display p.c. board. |
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| 5. | Damaged control p.c. board. |
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One of the knobs changes the dis- | 1. The display is in a mode that can |
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play, but the other doesnʼt. |
| only use one encoder. |
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| 2. | The connector from the control | If all recommended possible areas |
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| p.c. board to the encoder p.c. | of misadjustment have been |
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| boards may be loose or improp- | checked and the problem persists, |
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| erly inserted. | Contact your local Lincoln |
| 3. | Damaged encoder p.c. board. | Authorized Field Service Facility. |
| 4. | Damaged control p.c. board. |
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Neither knob changes the display. | 1. The connector from the control |
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| p.c. board to the encoder p.c. |
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| boards may be loose or improp- |
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| erly inserted. |
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| 2. | Damaged control p.c. board. |
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| 3. | Damaged encoder p.c. boards. |
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Displays & LEDʼs on keypad are | 1. Power source is off. |
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off. The green and red LEDʼs on the | 2. Power source supply is not sup- |
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control p.c. board are off. |
| plying 42 VAC to the wire feeder |
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| control box. |
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| 3. | Damaged input power wiring in |
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| the |
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| 4. | Damaged control p.c. board. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your