10: Maintenance 2470 High Voltage SourceMeter Instrument
10-2 2470-901-01 Rev. A / May 2019
Complete the following steps to replace the line fuse:
1. Power off the instrument.
2. Remove all test leads connected to the instrument.
3. Remove the line cord.
4. Locate the fuse drawer, which is above the AC receptacle, as shown in the figure below.
Figure 134: 2470 line fuse
5. Use the screwdriver to lift the tab from the fuse drawer.
6. Slide the fuse drawer out. The fuse drawer does not pull completely out of the power module.
7. Snap the fuse out of the drawer.
8. Replace the fuse.
9. Push the fuse drawer back into the module.
If a fuse continues to become damaged, a circuit malfunction exists and must be corrected. Return
the instrument to Keithley Instruments for repair.
Front-panel display
Do not use sharp metal objects, such as tweezers or screwdrivers, or pointed objects, such as pens
or pencils, to touch the touchscreen. It is strongly recommended that you use only fingers to operate
the instrument. Use of clean-room gloves to operate the touchscreen is supported.
Cleaning the front-panel display
If you need to clean the front-panel LCD touchscreen display, use a soft dry cloth.
Do not use liquids to clean the display
Abnormal display operation
If the display area is pushed hard during operation, you may see abnormal display operation. To
restore normal operation, turn the instrument off and then back on.
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