How To Clean The Display Filter - Agilent Technologies 83620A Service Manual

How to Clean the Display Filter

he synthesizer's display is protected by a plastic display lter. o clean the
display lter, use mild soap or detergent and water, or a commercial window
cleaner (ammonia does not hurt the plastic surface). Use a soft, lint-free cloth.
Do use abrasive cleaners, tissues, or paper towels which can scratch the
not
plastic.
Under normal operation, you will need to clean only the front side of the
display lter. Occasionally, depending on the environment in which the
synthesizer operates, you may wish to clean the back side of the lter as
follows:
1. urn the synthesizer to standby (yellow LED on).
2. Remove the AC line cord.
WARNING
The detachable power cord is the instrument disconnecting
device. It disconnects the mains circuits from the mains supply
before other parts of the instrument. The front panel switch is
only a standby switch and is not a LINE switch.
When you remove the front panel, if you do not disconnect the
CAUTION
AC line cord you can easily blow the fuse on the preregulator
assembly.
3. Refer to Chapter 7 and remove the front panel, front panel processor,
alphanumeric display, and the source module interface.
4. Clean the back side of the display lter and reassemble the instrument.
10-4 Preventive Maintenance
All manuals and user guides at all-guides.com
HP 8360