ROUTINE MAINTENANCE
Page 10
ROUTINE MAINTENANCE
Viewing
Screen
11
5
23
0
Voltage
Selector
Input
Power
Fuse
Base
Securing
Screws
Rubber
Feet
Sub-Stage
Fuse
Securing Clip
Retaining Knobs
Graticule
Clean the viewing screen periodically with optical cloth.
GENERAL
MAINTENANCE
POINTS
If, after cleaning the
viewing screen, the
picture quality is
below standard,
remove and clean the
graticule if fitted.
If the graticule
requires adjustment
after it has been
cleaned, see page 9.
NOTE
Ensure the Voltage Selector is
turned to the correct setting.
For Japan and some Far
Eastern markets the voltage
selector is marked 100 - 110V.
Changing the
Sub-Stage Fuse:
Remove the 4 rubber
feet from the base
(push fit).
Remove the 5 base
securing screws.
Replace the fuse with
an 800mA quick
blow type.
NOTE
When the base is
replaced, ensure
the heat slots line
up with the heatsink
and substage bulb.