Sony SAL1118 Service Manual page 8

1-5-3. Focus Trouble
Replace the defective part
or apply the grease.
SAL1118 (4.5-5.6/11-18) (DT 11-18mm F4.5-5.6)
Function NG
Check the coupler and
NG
gear shaft of the rear
lens barrel assy.
OK
Check the focus gear
barrel and
focus coupling barrel.
NG
Replace the defective part
or apply the grease.
NG
Check the operation
again.
OK
Focus trouble
Check the position, or
replace the focus brush.
OK
Clean the board pattern.
1-5
Position NG
Check the position
NG
and deformation
at the tip of
the focus brush.
OK
NG
Check board pattern
of the focus flex pattern.
OK
Replace the main pcb
assy.
Perform the
focus brush position
check/pattern check.
(See page 4-19.)
OK
END
NG