S L C S e r i e s X e n o n C o n s o l e
8.2. | MA L F U N C T I O N : LAMP DOES NOT IGNITE |
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| The system powers up, but the lamp does not ignite. |
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| Probable Cause | Corrective Action | Date/Remarks | |
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A | Ready lamp is not on. | Check all interlock or blower switch |
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| circuits. |
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B | DC supply is not set to | Increase lamp current by adjusting |
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| proper value. | power supply tap switch. |
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C |
| Failed power supply. | With DC power switch ON (open |
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| circuit), measure across igniter (+) and |
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| minimum voltage is not present, check |
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| power supply output. |
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D |
| Failed igniter | Listen for igniter buzz when manual |
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| start button is pushed. If buzz is heard, |
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| replace spark gap or AC transformer in |
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| igniter. |
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E | Igniter relay has failed. | Listen for relay to pull in as start button |
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| is pushed. If relay does not activate, |
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| measure coil voltage and/or check relay |
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| circuit. If no output voltage, replace |
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| defective relay. |
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F |
| Lamp failed. | Inspect lamp and replace. |
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| Table | ||
8.3. | POWER SUPPLY OUTPUT IS LOW OR NOT STEADY | ||||
| Power is erratic. |
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| Probable Cause | Corrective Action | Date/Remarks | |
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A | One phase open or low at | Inspect all DC and AC connections. |
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| TB2 or TB1 | Measure voltages at |
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| and |
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| Check AC source or repair circuit. |
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B |
| Failed diode | With power supply OFF, check for open |
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| or short in diodes. Use ohmmeter and |
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| reverse leads. If both measurements are |
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| below 1 Ω, diode is shorted. If above |
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| 10 kΩ, diode is open. Replace diode. |
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Table 8-3: Troubleshooting for Power Supply Output Low or Not Steady
CHRISTIE DIGITAL SYSTEMS |
August 7, 2003
