Toa SX-2000 Series Installation - Manual (Page 72)

72
2.5.5. Using an external microphone (RM-200SA only)
changing the jumper settings on the rm-200SA's circuit board causes an external microphone to be used.
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
Step 2. Set the jumper's position (SW301) on the circuit board
attached to the bottom plate as shown below.
RM-200SA inner circuit board Front side
SW301
SW301 SW301
When the external
microphone is used.
When the external
microphone is not
used.
(Factory-preset)
this change 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