Sony Cyber-Shot DSC-W90 Service Manual page 14

2-3-3. HOW TO INSTALL THE BARRIER BLOCK
1 Install the inner ring and the barrier block.
Note: When installing the barrier block, the CAV No. must be located in the lower left position.
2 Secure the barrier block with two screws.
* Tightening torque = 0.049 ± 0.01N • m (0.5 ± 0.1kgf • cm)
Note: Check that the barrier feather of the barrier block is not opened slightly or half-closed.
Barrier
feather
CAV No.
2-3-4. HOW TO INSTALL THE ORNAMENTAL RING (A)
1 Affix two barrier tapes to the barrier block.
Note: The barrier tape must not cover the boss of the barrier block.
2 Install the ornamental ring (A).
2 Ornamental ring (A)
Note: Turn on and off the power to check the opening and closing of the barrier block with the camera
in horizontal, up and down directions respectively.
Further, check the zoom motion.
Rotate the ornamental ring (A) lightly to check that it is not removed.
DSC-W90_L2
1 Barrier block
2 Two screws
Barrier block
2-7
1 Inner ring
1 Barrier tape
Boss
1 Barrier tape