SAL50F14 - Sony Digital Camera Service Manual (repair manual). Page 7

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SAL50F14 (1.4/50) (50mm F1.4)
1-4
Check the operation
again.
Replace the defective part
or apply the grease.
OK
NG
OK
OK
OK
OK
Function NG
Position NG
Focus trouble
Replace the defective part
or apply the grease.
Check the coupler.
Check the fixed holding
tube block and distance
tube block.
NG
NG
NG
NG
NG
END
OK
Check the position
and deformation 
at the tip of
the focus brush.
Adjust the position, or
replace the focus brush.
Check pattern
of the main flexible unit.
Clean the pattern of the 
 main flexible unit.
Replace the
main flexible unit.
Perform the 
 focus brush position
check/adjustment.
(See page 4-17.)
1-5-2. Focus Trouble
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