Sony SAL50F14 Service Manual page 7

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