Diagnostics
Voltage Specifications - General Parts
Part | Procedure | Voltage |
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FOCUS MOTOR | None | 8.5 V AC |
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CYCLE SOLENOID | Press the REVERSE BUTTON. | 39 W, 18.7 V DC |
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RACK SOLENOID | None | 39 W, 10 V AC |
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LAMP RECEPTACLE | None | 82 V AC, approximately |
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| LAMP MODULE installed |
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DROPPING RESISTOR | Move to the LO LAMP position. | 3.0 W, 10.6 V AC drop across |
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Power, Illumination, and Cooling Malfunctions |
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Malfunction |
| Check |
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The MOTOR does not operate. | 1. | Check the continuity across the THERMAL |
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| FUSE ASSEMBLY, and MOTOR FUSE. |
| 2. | Check that the primary voltage on the MAIN |
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| MOTOR is correct. |
| 3. | Check that the voltage on POWER |
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| SWITCH is correct. |
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The FAN does not operate, MOTOR operates. | 1. Check that the FAN BELT is not broken. | |
| 2. | Check and remove obstructions in the FAN |
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| area. |
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There is excessive noise in the FAN. | 1. | Check and remove obstructions in the FAN |
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| area. |
| 2. | Check that the tension is correct on the |
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| FAN BELT. |
| 3. | Check that the FAN BELT is clean. |
| 4. | Check the condition of the BEARING in the |
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| FAN ASSEMBLY. |
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The LAMP does not operate. | 1. | Check the LAMP for damage. |
| 2. | Check the LAMP RECEPTACLE |
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| ASSEMBLY for damage and correct |
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| voltage. |
| 3. | Check the LAMP TERMINAL ASSEMBLY |
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| in the LAMP MODULE ASSEMBLY for |
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| damage. |
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The LO LAMP does not operate. | 1. | Check that the W of the DROPPING |
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| RESISTOR is 3 W. |
| 2. | Check that the wire connections on the |
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| POWER SWITCH are correct. |
| 3. | Check the POWER SWITCH for correct |
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| operation. |
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There is an obstruction in the light path. | 1. | Check the DARK SHUTTER for correct |
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| operation. See the adjustment for the |
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| DARK SHUTTER. |
| 2. | Check the LIGHT BAFFLE in the |
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| MECHANISM for damage; it should not |
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| cause a jam in the SHUTTER. |
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