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BX2 MAINTENANCE MANUAL

4. BX2 inspection sheet

MODEL :

S/N :

CHECK POINT

1. Electrical unit

2. Coarse/fine focus

adjustment knob

3. Stage

4. Observation tube

5. Revolving

nosepiece

6. Condenser

7. Illumination

8. Visibility

(Observation)

Remarks:

MAINTENANCE PROCEDURE

CHECK CONTENTS

1) When the power switch is turned on, the lamp is lit

and the brightness can be varied by adjustment knob.

2) When the light preset switch is set ON, the previously

set voltage can obtained regardless of brightness

adjustment knob position.

3) The voltage of light preset switch can adjusted in a

prescribed range.

1) The coarse/fine focus adjustment knob is smoothly

moved without tightness or unevenness.

2) The tension of coarse focus adjustment knob can be

adjusted by the adjustment ring.

3) The coarse upper limit lock is effective.

1) The stage is fixed by the clamping screw.

2) The stage can be rotated clockwise or

counterclockwise while holding the clamping screw

after the screw is loosened.

3) The stage should not fall spontaneously.

4) A specimen is held securely by the specimen holder.

5) The X/Y movement is smooth without unevenness,

backlash or slipping.

1) The interpupillary distance adjustment can be

operated smoothly in working range.

2) When changing the interpupillary distance,

the displacement of optical axis is not apparent.

3) The diopter adjustment ring is moved smoothly

in working range.

4) The optical axis of left side coincides with that of right

side.

5) The light path selector knob is moved smoothly.

6)The tilting angle is easily adjusted and its angle

is stable. (U-TBI / U-ETBI only)

7) When changing the tilting angle, the optical axis

displacement is not apparent. (U-TBI / U-ETBI only)

1) The revolving nosepiece can be rotated smoothly

and stops at the click position.

1) The vertical movement of condenser is smooth.

2) The centering of field iris diaphragm can be adjusted in

a movable range with the condenser centering knobs.

1) The field/aperture iris diaphragm ring is moved normally.

1) Observation image is normal.

Without flares /ghosts / vignetting /uneven illumination

2) When photographed, there is no unevenness or

shading on the film surface.

3) Dust and dirt are not noticeable in observation or

photomicrography.

CHECK DATE :

CHECKING BY :

- 7 -

RESULT

REF. PAGE

18, 19, 20

OK / NO

14, 15, 16

OK / NO

11, 12, 13

OK / NO

8, 9

OK / NO