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Chapter 2 Initial Operation
Output Checkout
29
2
Output Checkout
The following procedures check to ensure that the power supply develops
its rated outputs and properly responds to operation from the front panel.
For complete performance and verification tests, refer to the
Service Guide
.
For each step, use the keys shown on the left margins.
Voltage Output Checkout
The following steps verify basic voltage functions with no load.
1 Turn on the power supply.
The power supply will go into the power-on / reset state; all outputs are
disabled (the OFF annunciator turns on); the display is selected for the + 6V
supply (the +6V annunciator turns on); and the knob is selected for voltage
control.
2 Enable the outputs.
The
OFF
annunciator turns off and the
+6V
and
CV
annunciators are lit. The
blinking
digit can be adjusted by turning the knob. Notice that the display is
in the meter mode.
“
Meter mode
”
means that the display shows the actual
output voltage and current.
3 Check that the front-panel voltmeter properly responds to knob
control for the +6V supply.
Turn the knob clockwise or counter clockwise to check that the voltmeter
responds to knob control and the ammeter indicates nearly zero.
4 Ensure that the voltage can be adjusted from zero to the maximum
rated value.
Adjust the knob until the voltmeter indicates 0 volts and then adjust the
knob until the voltmeter indicates 6.0 volts.
1
You can use the resolution selection keys to move the blinking digit to the right or
left when setting the voltage.
1
Output On/Off
Power