Sharp SF-1020, SF-1120 service manual Procedures

Models: SF-1120 SF-1020

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7Remove the drive wire spring and the wire hook from the lens carriage boss.

L drive pulley

Lens unit

Wire SP

Wire hook

 

8Remove the L pulley and the L drive pulley from the lens wire.

B. Lens wire stretching

1. This procedure is performed in the following case.

(1)When the lens unit is removed.

(2)When No. 4/5 mirror drive unit is disassembled.

(3)When the copy is out of focus because relative position of the lens unit and No. 4/5 mirror unit is shifted by moving the lens unit itself back and forth without turning the L drive pulley.

*In order to move the lens unit of this machine back and forth in servicing, be sure to turn the L drive pulley. (If the lens unit itself is moved, the wire may slip at the L drive pulley and the relative position of the lens unit and No. 4/5 mirror unit is shifted, resulting in improper focusing.)

L drive pulley

Lens unit

2. Procedures

1Manually move the lens carriage unit to fit the lens carriage hole with the optical unit frame hole (which is not the home position hole but the reduction side hole). Insert a pin into the holes, fix the lens unit, and stretch the wire.

Lens carriage unit

2Under the above state, fit the zooming cam drive gear hole with the No. 4/5 drive unit base hole A (by inserting a pin, etc.), and insert the zooming can drive gear into the shaft.

Zooming cam drive gear

Hole

Hole A

Shaft

Hole B

3Remove the pin which fixes the lens unit and the zooming cam.

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Page 61
Image 61
Sharp SF-1020, SF-1120 service manual Procedures