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POWER

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Issue

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The unit does NOT TURN ON?

1.   Make sure the unit is plugged in and that main power switch is turned on.

2.   Check the continuity on the main power switch (S1)

3.   Check continuity on fuses F1, F2, F3, F9 and F10.  Replace fuses as needed.

4.   Check the voltage in and out of the main transformer (115 volts in 24-270 Volt out).

After turning the main power switch ON the F9 or F10 fuse keeps blowing?

Replace the SPS controller.

The unit is ON but none of the functions work?

1.   Make sure the SPS is switched to the RUN position.

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2.   Check the F12 fuse on the shutter motherboard.

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The unit is ON but none of the lamps will light?

1.   Check F5, F6 fuses.  Replace as needed.

2.   Make sure the light potentiometer switch is connected to the CPU switchboard.

3.   Make sure the SPS is switched to the RUN position.

4.   Check the light relay.

Only some of the lamps will turn ON?

1.   Check lamps.

2.   Check the ballasts.

The lights will not dim?

1.   Check the light potentiometer switch.

How do I replace lamps?

1.      Drive the belt beyond frame 85. You will need the foot switch to get the belt beyond frame 85.

2.      When the cut outs in the belt appear about half way into the viewing area, cut the power switch off.

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3.      Remove the internal acrylic panel and replace the lamps as needed. For detail instructions on changing the lamps see your service manual.

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 The Belt does not drive?

1.   Check the main BELT alignment.

2.   Check that the S2 or S3 safety switches are not activated.

3.   Check the F3 fuse.

4.   Check the F14 fuse on the Speed Controller.

The belt drives from one end to the other without stopping?

1.      Check the S8 and S9 sensors.  The LED on transmitter should always be on.  The LED on the receiver should blink on and off every time the belt reaches a frame position.

2.      Check the cable connections of S8 and S9.

3.   Check the #2 and #5 inputs on the SPS.

4.      Make sure the SERVICE switch is turned off.

The belt drives to a certain frame but it “hunts” UP and DOWN several times before stopping.   The LED does not match the frame number on the belt?

1.   Calibrate the Actual Value Potentiometer (P1).

2.   Replace the Actual Value Potentiometer. (P1)

The belt is jammed?

(Caution: Do not remove the drive chain)

1.   This is usually caused by an elastic band getting caught.

2.   Locate the affected band and release it by turning the drums up and down

 by using only the hand crank.

3.   Locate and remove any foreign objects that may have fallen inside the machine.

The belt tension is too loose and the belt rides to one side?

1.   Run the belt one frame at time from one end to the other several times.  The belt should realign.

The chain has been removed and the belt tension was lost?

1.      Drive the Belt to frame #42.  Remove the drive chain. Keeping the belt tight on the bottom drum, turn the spring shaft 2 ½ turns counter-clockwise using the hand crank.

Mammolux Belt Calibration Worksheet.

Click here to download pdf.

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The shutters will not drive?

1.      Check the F12 fuse on the Shutter Mother Board.

2.      Check the X18 and X20 connections.

3.      Check the connections into the Shutter Mother Board.

4.      Check for 24-volts out of the main transformer.

The shutters will not drive all the way out?

Note:  On units with auto calibration software, the shutters will cover about ¾ of the bottom edge of the film. This is normal due to safety perimeters in the shutter system design

1.      Reset the shutter opening by inputting a new shutter memory into the 24 x 30 button.

2.   Check the potentiometer perimeter values and calibrate the shutters.

The shutters make unusual noises when they are driven IN or OUT?

Calibrate the shutters:

The calibration of the shutters is absolutely necessary to insure a limitation of the mobile range of the four and to protect them from collision.

1. Press the following keys simultaneously: "C", "6" and "8" simultaneously.  This will enter the system into the shutter calibration mode.

2. A flashing "99" appears on the display.

3. The shutters will now move automatically by the calibration program.

At first the reference window 1 will be set in the left upper corner of the viewing area.

Then the reference window 2 will be set in the right lower corner of the viewing area.

After this, all the four shutters will be opened again automatically.

4. The calibration will be finished, when the red LED in key "Funct" stops flashing and the display shows the field number again.

Now the calibration of the shutters has been done.

Note: Without calibration the shutter functions are locked and do not work.

One of the shutters will not drive?

1.   The drive motor gear is stuck.

2.      Release the gear tension by loosening the shutter motor mounting screws.  Manually try turning the motor housing.  Do not put too much force on the motor; it may bend the worm gear shaft.  If the motor still does not drive, replace it.

3.   Calibrate the shutters after the motor is released.

The shutter skips when driving IN or OUT?

1.      On units with a belt drive shutter system, the shutter carrier rod may need lubrication

2.      On units with worm gear shutter system, the shutter carrier may be dirty.  Look for burrs on the shaft and smoothen as needed.

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3.   The shutter gear motor may be stripped.  Replace the shutter motor and then calibrate the shutters.