Martin MAC 500 Manual de usuario descargar pdf (Pagina 6)

Troubleshooting 6

Martin University MAC 2000 Service Seminar

VISIBLE IRIS GRAPHITE

Excess graphite powder can accumulate at the edge of the iris blades and become visible in

the projected image. This excess may be removed by blowing it away. Be careful though

not to get the powder on lenses and other optical parts.

FOCUS, AND ZOOM

FOCUS OR ZOOM LENS LOSES STEP OR MOVES ERRATICALLY

Defective motor or motor driver. Check motor, cables, and driver.

FOCUS OR ZOOM TIMEOUT (FOER, ZOER)

The focus or zoom is not activating the indexing switch. Refer to adjustment procedure.

ROUGH FOCUS OR ZOOM

Improper belt tension: If the drive belt is too tight or too loose, focus/zoom action will

be choppy or difficult.

Slides need lubrication: Apply an extremely light film of recommended Martin High

temperature Silicone oil to the slides. Apply 1 small drop and spread evenly. It is better to

have too little oil than too much.

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Martin MAC 500 Manual de usuario Pagina 6