Read Sony SAL75300 Service Manual online
4-21
SAL75300 (4.5-5.6/75-300) (75-300mm F4.5-5.6)
2. Zoom Brush Position Adjustment
1)
Set the zoom position to Wide end.
2)
Loosen the two screws fixing the encoder brush.
Fig. 4-7-6
3)
Perform the “4-7-1. Zoom Brush Position Check”, and adjust the encoder brush position until the OK (Green) indicator of “Position” lights.
Fig. 4-7-7
4)
Tighten the two screws loosened in step 2).
3. Pattern Check
Note: When the NG (Red) indicator of “Position” lights during checking, does not care about it (It is normal performance).
1)
Turn the zoom ring slowly from the Tele end “Zoom Pattern : 1” to Wide end “Zoom Pattern : 23” and check that the value of “Zoom
Pattern” change from 1 to 23 continuously.
2)
Turn the zoom ring slowly from Wide end (Zoom Pattern : 23) to the Tele end (Zoom Pattern : 1) and check that the value of “Zoom
Pattern” change from 23 to 1 continuously.
Fig. 4-7-8
3)
Click the
[Exit]
button.
4)
Click the
[End]
button to terminate the lens adjustment program.
5)
Turn the POWER switch of the camera to OFF.
6)
After the pattern check is completed, apply the adhesive bond (B-10) as shown in Fig. 4-7-9.
Fig. 4-7-9
Two screws
Reference position
of brush
of brush
h
h
h
h
h
Apply the adhesive bond (B-10)
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