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Figure A-13. Troubleshooting Status Indicators
To check Mode CV proceed as follows:
a. Using test set-up, Figure A-13, connect to end of 2KΩ resistor to J3-36.
b. Turn on power supply.
c. Using "Display Setting'' set voltage and current or power supply for 1 volt and 1 amp.
d. DVM should read between 0 to 0.4 volts.
e. Turn off power supply and short to output terminals.
f. Turn on power supply.
g. DVM should read approximately 5Vdc.
To check Mode CC proceed as follows:
a. Using test set-up, Figure A-13, connect top end of 2KΩ resistor to J3-35.
b. Turn on power supply.
c. Using "Display Settings'' set voltage for 1 volt and current for 1 Amp.
d. DVM should read = 5Vdc.
e. Turn off power supply and short the output terminals.
f. Turn on power supply.
g. DVM should read between 0 to 0.4Vdc.
To check EOVERVOLTAG proceed as follows:
a. Using test set-up, Figure A-13, connect top end of 2KΩ resistor to J3-17.
b. Turn "OVP Adjust" fully clockwise and voltage control fully counter clockwise.
c. Open power supply output terminals and turn on power.
d. DVM should read approximately 5Vdc.
e. Press 'Display Settings" and increase voltage control for 15Vdc output.
f. Turn OVP Adjust'' counterclockwise until supply goes into overvoltage.
g. DVM should read between 0 and 0.4Vdc.
h. Turn "OVP Adjust" fully clockwise and turn off input power for 5 seconds.
i. Turn on input power and DVM should read approximately 5Vdc.
To check ED UNREGULATOUTPUT proceed as follows:
a. Using test set-up, Figure A-13, connect to end of 2KΩ to J3-18.