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MIC-D

4.Trimmer resistance adjustment

(1)Contents : Adjust the voltage of volume switch by trimmer resistance.

(2)Tools

-1-Voltage meter

(3) Adjustment

-1- Connect MIC-D and PC by USB cable.

-2- Check that the illumination LED of MIC-D is light up.

-3- Turn the volume switch clockwise until the maximum.

Clockwise

-4-Connect red (+) probe to the check pin 1 in the light intensity adjustment board.

Connect black (-) probe to the check pin 2 in it.

-5-Adjust that the display value of tester may be set to 50+/-5mv with turning trimmer resistance

for voltage adjustment.

Check pin 2(-)

Light intensity

adjustment board

D.ADJUSTMENT PROCEDURE

D-5

USB cable

Check pin 1(+)

Trimmer resistance for

voltage adjustment