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Focus Brush Position Check/Adjustment - Sony SAL135F18Z Service Manual

Lens for dslr camera (sonnar 1.8/135 za) (sonnar t* 135mm f1.8 za)
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4-8.

FOCUS BRUSH POSITION CHECK/ADJUSTMENT

4-8-1. Focus Brush Position Adjustment
Equipment
• Special driver
• Adhesive bond (B-10)
Focus Brush Position Adjustment
1) Disassemble the checking lens into the state of Fig.4-8-1.
Apply the adhesive
bond (B-10)
Zoom Brush
2) Set the focus to the infinite end.
3) Check the conduction between first pattern and second pattern from top as shown in figure.
• When the brush comes to the area circled where no pattern exists, no conduction occurs. (Adjusted)
• When the brush comes to the area circled where the pattern exists, the conduction occurs. (Not adjusted)
Brush
Apply the adhesive
bond (B-10)
Loosen two screws fixing the brush,
adjust the brush position
4) If not adjusted in step 3), loosen two screws fixing the brush (For focus ring), and adjust the brush position, perform step 2) and 3)
again.
5) After adjustment, apply the adhesive bond (B-10) to portions shown in Fig.4-8-1.
6) After adjustment, perform the [2 Focus Brush Position Check] and [3 Pattern Check].
SAL135F18Z (Sonnar 1.8/135 ZA) (Sonnar T
Pattern of F-ECD of flexible
Check the conduction
135mm F1.8 ZA)
*
Connector
Fig.4-8-1
No conduction
Adjustment : OK
Fig. 4-8-2
4-30
Focus 1 Cam Ring Assy
Conduction
Adjustment : NG

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