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104 72 79-26
Power supply
FOR SAFTEY REASONS ALWAYS DISCONNECT THE POWER CORD FROM THE MACHI-
NE BEFORE REMOVING THE POWER SUPPLY.
Dismantling
1. Remove rear cover.
2. Loosen the two screws (A) of the powersupply from below in the base plate.
3. Push the power supply to the right so that the mains switch part is exposed from the base plate and lift it
upwards.
4. Disconnect the cable to the circuit boards from the power supply.
Checking the powersupply
Connect the transformer to mains.
Measure the voltage and resistance between the contact pins.
1-2 should be approx. 0-100 k Ohm Foot control connected.
3 should be 6.5 - 7.5 V DC.
4 should be approx. 3.3 V DC.
5-6 are ground.
7-8 should be approx. 24 Volt DC Lamp, computer.
Dismantling and mounting
A