GOS-6112 OSCILLOSCOPE
USER MANUAL
51
6.MAINTENENCE
The following instructions are executed by qualified personnel only. To avoid
electrical shock, do not perform any servicing other than the operating
instructions unless you are qualified to do so.
6-1.Fuse Replacement
If the fuse blows, the power lamp indicators will not light and the
oscilloscope will not start. The fuse should not normally open unless a
problem has developed in the unit. Try to determine and correct the cause
of the blown fuse and replace only with a fuse of the correct rating and type
on the rear panel.
WARNING
. For continued fire protection. Replace fuse
only with 250V fuse of the specified type and rating, and
disconnect power cord before replacing fuse.
6-2.Line Voltage Conversion
The primary winding of the power transformer is tapped to permit operation
from 100, 120 or 230VAC 50/60Hz line voltage. Conversion from one line
voltage to another is done by changing the line voltage selector switch as
shown in page 7. The rear panel identifies the line voltage to which the unit
was factory set. To convert to a different line voltage, perform the
following procedure:
(1).Make sure the power cord is unplugged.
(2).Adjust the line voltage selector switch to the desired line voltage
position.
(3).A change in line voltage may also require a corresponding change of
fuse value. Install the correct fuse value as listed on rear panel.
GOS-6112 OSCILLOSCOPE
USER MANUAL
52
6-3.Cleaning
To clean the oscilloscope, use a soft cloth dampened in a solution of mild
detergent and water. Do not spray cleaner directly onto the oscilloscope
because it may leak into the cabinet and cause damage.
Do not use chemicals containing benzine, benzene, toluene, xylene,
acetone, or similar solvents. Do not use abrasive cleaners on any portion
of the oscilloscope.
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