Mitutoyo TM-500 Series, User Manual

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5. Troubleshooting
32
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The surface illumination bulb will not light.
Check1
䋺
Is the power switch turned on?
YES No Turn on the power switch.
Check2
䋺
Is the surface illumination switch turned on?
YES No Turn on the surface illumination switch.
Check3
䋺
Is the light control knob properly set?
YES No
Turn the knob clockwise to increase the light intensity (if
turned fully counterclockwise).
Check4
䋺
Is the power cord connected correctly?
YES No Connect the power cord correctly.
Check5
䋺
Is the voltage selector set to the correct voltage?
YES No Set the voltage selector to the correct voltage.
Check6
䋺
Is the bulb normal (conductive)?
YES No Replace the bulb.
Check7
䋺
Is the fuse normal (conductive)?
YES No Replace the fuse.
Check8
䋺
Is the voltage from the AC outlet normal (supplied)?
YES No Supply power to the outlet.
Check9
䋺
Is the voltage at the AC inlet on the main unit normal (input)?
YES No Replace the power cord.
Contact Mitutoyo.
(3)The light intensity of contour illumination cannot be adjusted
(if the contour illumination switch is turn on ).
Check
䋺
Is the contour illumination bulb lit?
YES No
Refer to "(1) The contour illumination bulb will not light".
Contact Mitutoyo.