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2.5.7. Microphone fault detection function setting (RM-200SA only)
The RM-200SA is equipped with the microphone fault detection function, which can be set to OFF. (Factory-
preset to ON)
Notes
• Turn off the power before starting this work.
• To avoid damage from static electricity, never touch the parts on the circuit board.
Step 1. Unscrew 8 screws indicated by arrows in the figure at
right, then detach the RM-200SA's upper case.
Note
Note the types of screws.
A: 3 x 8 tapping screw (white silver) ........... 6 pieces
B: 3 x 10 tapping screw (black) ................... 2 pieces
RM-200SA bottom
A
A
B
B
A
A
A
A
SW303
RM-200SA inner circuit board
Front side
SW303
When setting the
microphone fault
detection function
to ON.
(Factory-preset)
When setting the
microphone fault
detection function
to OFF.
SW303
Step 2. Set the jumper's position (SW303) on the circuit board attached to the bottom plate as shown below.
Step 3. Replace the RM-200SA's upper case.
Note: Note the types of screws when replacing the upper case (See Step 1.)
This work should only be performed by a qualified professional
electrician. If users open the unit case or modify the unit, this may
cause fire or electric shock.
WARNING
