How To Replace The Potentiometers - Elma Elmasonic S Series Service Manual

10
Cause of breakdown
Elma order no.
How to proceed
© Elma Schmidbauer GmbH

How to replace the Potentiometers

The units of the Elmasonic S series are no longer fitted with
mechanical switch elements as the units of the previous series
Transsonic, but with electronic switch elements.
Setting of the cleaning period and the temperature is carried out
via potentiometer which are soldered to the PCB control.
A breakdown can be caused by heavy mechanical forces such
as shock or transport damages.
100 1711 (for all mains voltages)
To replace the component it is necessary to open the bottom
plate and to take out the PCB control. Proceed as follows:
1. Open the unit as described in section 6.
2. Pull off the turning knob as described in section 7.
3. Remove the PCB control as described in section 7.
4. Carefully unsolder the faulty potentiometer (soldering points
see illustration 10.1.).
5. Position the new potentiometer on the 4 soldering points
and solder it. Coding by 2 plastic pins at potentiometer.
6. Mount the PCB control as described in section 8.1.
7. Mount the turning knob as described in section 7.2.
8. Mount the bottom plate; close the unit. Ensure that all plug
contacts are correctly plugged and that no cables are
pinched.
Illustration 10.1. Soldering points for potentiometer
SM_Elmasonic_S_02.2018_EN
How to replace the Potentiometers
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