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6. Maintenance and Service
6.1 Maintenance and Service
If the operability of the Control Unit is unsatisfactory, or if settings on the test mode calibration screen are
ineffective, the problem could be a defective mechanism, displacement of the position where volume or
microswitch has been fastened or malfunctioning of volume or microswitch.
Carry out the following procedure to replace Control Unit or microswitch. Also be sure to grease the mechanical
components of the Control Unit once every 3 months.
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