Troubleshooting - Sony SAL20F28 Service Manual

1-5.

TROUBLESHOOTING

1-5-1. Aperture Trouble
Replace the defective part.
SAL20F28 (2.0/28) (20mm F2.8)
Function NG
NG
Check operation of
the preset ring.
OK
Check operation
of the diaphragm
control block.
NG
Replace the defective part.
Aperture trouble
NG
Perform the aperture
diameter adjustment.
(See page 4-7.)
Check operation of the
preset ring, and replace
OK
Perform the aperture
NG
1-3
F No. NG
Perform the aperture
diameter check.
(See page 4-4.)
OK
the defective part.
NG
diameter check.
(See page 4-4.)
OK
END