20
1-13. Cautions on Handling the Optical Block Assembly
When handling the optical block assembly, perform grounding as described below to prevent electrostatic
breakdown.
Grounding human body
Be sure to wear a grounded wrist strap (10
8
Ω
or less) to discharge static electricity charged in the human
body.
Note
Since static electricity charged in clothes is not discharged from the wrist strap, keep your clothes away
from the optical block assembly.
Grounding the workbench
Be sure to put the optical block assembly on a grounded earth mat (10
9
Ω
or less recommended) or a
copper plate.
Precautions
•
The optical block assembly has been precisely adjusted. Do not give impact to it due to fall or
careless handling.
•
Do not touch the objective lens.
•
When handling the optical block assembly, hold the slide base (die-casting part). If a part of human
body or another object directly touches the circuit on the printed circuit board, it may deteriorate.
•
The actuator has a strong magnet. If a magnetic substance comes close to the optical block assembly,
the actuator characteristics change. Contacting a metal part such as a screwdriver with the actuator
may damage the objective lens. Do not bring a magnetic substance close to the optical block
assembly.
•
Be careful so that any foreign matter does not enter the clearance of the actuator cover.
Ground wrist strap
Optical block assembly
Earth mat
Содержание PDW-U4
Страница 7: ...4 Frame Wiring 151 Revision History 152 ...
Страница 24: ...21 Hold the shaded portions Keep away a screwdriver Objective lens Actuator ...
Страница 147: ...144 Frame Assembly 2 310 309 310 309 311 311 311 311 307 306 305 302 308 304 311 306 311 303 301 311 307 ...
Страница 155: ...152 Revision History Date History Contents 2020 10 1st Edition 9 932 764 01 ...
Страница 156: ...PDW U4 SY PDW U4 CN J E 9 932 764 01 Sony Corporation Printed in Japan 2020 10 08 2020 ...