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Press
Press
Press
Turn off the power supply and remove the short from the output terminals.
* Current increments are for Agilent 6552A. See "Average Resolution" in "Supplemental Characteristics of Chapter 1
for your specific model.
** Maximum current value is for Agilent 6552A. See "Output Ratings" in "Performance Specifications" of Chapter 1 for
your specific model.
****
key is the unlabeled blue key.
Save/Recall Checkout
The following steps check the power supply save and recall function keys.
n
Make certain that the Dis annunciator is off. Then set the voltage output to 5 volts by pressing
n
Save this value to location 1 by pressing
n
Remove the output voltage by pressing
which are the factory reset values (see Chapter 5 for more information).
n
Press
In Case Of Trouble
Line Fuse
If the power supply appears "dead" with a blank display and the fan not running, first check your power source to be certain
line voltage is being supplied to the power supply. If the power source is normal, the power supply line fuse may be
defective. If this is the case, replace the fuse only once. If it fails again, investigate the reason for the failure. Proceed as
follows:
Series 654xA and 655xA Supplies
The line fuse is located on the rear panel (1, Figure 2-1). Proceed as follows:
1.
Turn off the front panel power switch.
2.
Using a screwdriver, remove the fuse from the fuseholder. Replace it with one of the same type (see Table 1-4 in
Chapter 1). Do not use a "slow-blow" type fuse.
3.
Turn on the power supply and check the operation.
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Table 3-2. Checking the Current Functions (continued)
25.000
and notice that the output voltage returns to 5.
Dis annunciator goes off and the CC annunciator comes on.
AMPS shows some current.
**AMPS increases to maximum output.
Dis annunciator comes on and AMPS reading drops to near
zero.
.
. This recalls the power supply values stored in location 0,
.
Turn-On Checkout 35
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