Sony SAL1680Z Service Manual page 89

2. Checking Method
Set the focus to the ∞ end and zoom to the wide end.
1)
2) Peel off the polyester tape shown in Fig.4-10-2 and open a little the main flexible unit with tweezers. Then, loosen two screws fixing
the focus brush.
Screw
[Search Focus Adj Point]
3) Click the
4) The message "If Focus-Adjustment-Point is found, Buzzer sounds". is displayed on the pop-up window.
Search the position where the sound beeps by turning the lens to the infinity position.
SAL1680Z (Vario-Sonnar DT 3.5-4.5/16-80 ZA) (Vario-Sonnar T
Focus Brush
Main Flexible Unit
Polyester Tape
Fig.4-11-2
.
Fig.4-11-3
Fig.4-11-4
DT 16-80mm F3.5-4.5 ZA)
*
4-43