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TROUBLESHOOTING & REPAIR
FIRING BOARD TEST (continued)
| TABLE F.1 - LED 7, 8, 9 AND 10 |
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| IF | THEN |
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| LED 7 is ON | 32 VAC power is being supplied to the |
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| firing board from leads #203 and |
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| #204 connected to the phase angle |
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| winding in the Main Transformer. |
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| Normal is 32 VAC. |
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| LED 7 is not lit or is dimmer than | The proper AC voltage may not be |
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| the other LEDs | reaching the firing board. Check for |
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| loose or faulty connections. Perform |
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| the Main Transformer Test. |
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| LED 8 is ON | 32 VAC power is being supplied to the |
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| firing board from leads #205 and #206 |
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| connected to the phase angle winding in |
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| the Main Transformer. |
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| LED 8 is not lit or is dimmer than | The proper AC power may not be |
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| the other LEDs | reaching the firing board. Check for |
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| loose or faulty connections. Perform |
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| the Main Transformer Test. |
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| LED 9 is ON | 32 VAC power is being supplied to |
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| the firing board from leads #207 and |
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| #208 connected to the phase angle |
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| winding in the Main Transformer. |
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| LED 9 is not lit or is dimmer than | The proper AC power may not be |
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| the other LEDs | reaching the firing board. Check for |
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| loose or faulty connections. Perform |
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| the Main Transformer Test. |
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| LED 10 is ON | This indicates the trigger circuit is |
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| activated at the |
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| the terminal strip or that the Output |
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| Terminal Switch (SW5) is closed. |
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