Chapter 5 5-7
Power Supply Troubleshooting
If the Green LED of the A15 Is Not ON Steadily
If the Green LED of the A15 Is Not ON Steadily
If the green LED is not on steadily, the line voltage is not enough to power the analyzer.
Check the Line Voltage, Selector Switch, and Fuse
Check the main power line cord, line fuse, line selector switch setting, and actual line
voltage to see that they are all correct. Figure 5-4 shows how to remove the line fuse, using
a small flat-blade screwdriver to pry out the fuse holder. Figure 5-2 shows the location of
the line voltage selector switch. Use a small flat-blade screwdriver to select the correct
switch position.
NOTE Refer to “8753ET/ES: Hardware, Preregulator” on page 13-55 for the correct
line fuse description and part number.
If the A15 green LED is still not on steadily, replace A15.
Figure 5-4 Removing the Line Fuse
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