16
22) Use the procedures in "2.2 Inspecting the Balance Interior" in reverse to restore the original state.
2.3.11. Replacing the Stopper Plate (U14)
1) Use the procedures in "2.2 Inspecting the Balance Interior" to remove as far as the unit cover (B5).
2) Loosen the pan head screw M3 × 6 (2 screws) and flat washer M3 (2 locations), and remove the stopper
plate (U14).
3) With the stopper plate (U14) in a position aligned to the center of the force coil ASSY (L1) pin, use the pan
head screw M3 × 6 (2 screws) and flat washer M3 (2 locations) to tighten.
4) Use the procedures in "2.2 Inspecting the Balance Interior" in reverse to restore the original state.
2.3.12. Replacing the Stopper Lever (U15)
1) See 2.3.8 to remove the unit ASSY (1).
2) Use the cable ASSY jig (J10) connector to connect the detector ASSY (U11) and the analog board ASSY
(B3).
* Leave the cable ASSY C (U19) (soldered cable with 2 pins) removed from the analog board
ASSY (B3).
3) Connect the tester (+) terminal to the detector ASSY (U11) CP1 pin, and the (-) terminal to the CPG pin.
4) Extract the lever fixing pin (J1) from the unit ASSY (1) lever fixing hole.
* Lift up on the lever ASSY (U7) to extract the pin. Proceed carefully to avoid scratching the elastic
support.
5) Connect the AC adaptor to the balance, and energize it.
6) With the screw P3 M3 × 8 (2 screws) connecting the stopper lever (U15) slightly loosened, press lightly on
the lever ASSY (U7) up and down until it contacts the top of the stopper lever (U15), and then tighten the
stopper lever (U15) in a position where the absolute value is the same (where the tester display reverses
(+) (-)).
* Press lightly on the balance weight (U21), and adjust so that the direction the tester display
points (direction where the shutter rises) becomes (-).
* Detector ASSY (U11) output adjustment standard: Within 0.3 [V] b side and
– side
A
llowable range of output v1.5 to +2V,
-1.5 to -2V
7) Extract the lever fixing pin (J1) from the unit ASSY (1), shake the unit ASSY (1) lightly to move the lever
ASSY (U7) up and down, and if it contacts the stopper lever (U15) with a clear sound, the unit ASSY (1)
assembly is complete.
* If it does not make a clear sound, the lever ASSY (U7) pin and stopper plate (U14), or the force
coil ASSY (L1) and magnet ASSY (U9), may be in contact. Check each part to see if any are out of
position, and readjust the position.
8) Insert the lever fixing pin (J1) into the lever fixing hole on the top of unit ASSY (1).
* Lift up on the lever ASSY (U7) to insert the pin. Proceed carefully to avoid scratching the elastic
support.
9) See 2.3.8 to mount the unit ASSY (1).
10) Remove the AC adaptor, and remove the tester terminals from the detector ASSY (U11).
11) Remove the cable ASSY jig (J10).
12) Use the above procedures 2) to 3) in reverse to restore the original state.
13) See 2.3.8 to restore the original state.