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2600AS-901-01 Rev. B / September 2008
Return to
21-3
Series 2600A System SourceMeter® Instruments Reference Manual
Section 21: Routine Maintenance
Perform the following steps to replace the line fuse:
1.
Carefully grasp and squeeze together the locking tabs that secure the fuse carrier to the
fuse holder.
2.
Pull out the fuse carrier, and replace the fuse with the type specified in
CAUTION
To prevent instrument damage, use only the fuse type specified in
.
3.
Reinstall the fuse carrier.
If the power line fuse continues to blow, a circuit malfunction exists and must be corrected. Return
the unit to Keithley Instruments for repair.
Front panel tests
There are two front panel tests: one to test the functionality of the front panel keys and one to test
the display.
Keys test
The KEYS test lets you check the functionality of each front panel key. Perform the following steps
to run the KEYS test.
1.
Press
MENU
>
DISPLAY
>
TEST
.
2.
Select
DISPLAY-TESTS
, and press
ENTER
or the
navigation wheel
.
3.
Select
KEYS
, and press
ENTER
or the
navigation wheel
to start the test. When a key is
pressed, the label name for that key will be displayed to indicate that it is functioning
properly. When the key is released, the message “No keys pressed” is displayed.
4.
Pressing
EXIT
tests the
EXIT
key. However, the second consecutive press of
EXIT
aborts
the test and returns the instrument to the DISPLAY menu. Continue pressing
EXIT
to back
out of the menu structure.
Display Patterns test
The Display Patterns test lets you verify that each pixel and indicator in the vacuum fluorescent
display is working properly. Perform the following steps to run the display test:
1.
Press
MENU
>
DISPLAY
>
TEST
.
2.
Select
DISPLAY-TESTS
, and press
ENTER
or the
navigation wheel
.
3.
Select
DISPLAY_PATTERNS
, and press
ENTER
or the
navigation wheel
to start the
display test. There are three parts to the display test. Each time
ENTER
or the
navigation
wheel
is pressed, the next part of the test sequence is selected. The three parts of the test
sequence are as follows:
Table 21-1
Line fuse
Line voltage
Rating
Keithley Instruments
part no.
100-240V
250V, 3.15A, Slow
Blow 5
×
20mm
FU-106-3.15