CALIBRATING THE LDX-3200 SERIES CURRENT SOURCE CHPT 6
PAGE 10
TROUBLESHOOTING GUIDE
This section is a guide to troubleshooting the LDX-3200 Series Current Sources. Some of the more common
symptoms are listed here, and the appropriate troubleshooting actions are given. We recommend that the user start at
the beginning of this guide. Read the symptom descriptions, and follow the steps for the corrective actions which
apply. If you encounter problems which are beyond the scope of this guide, contact your ILX Lightwave customer
service representative.
SYMPTOM
CORRECTIVE ACTIONS
GENERAL
LDX-3200 Series unit will not power up Check AC Power line voltage and power cord connection.
Power on, but display is frozen, switches don’t
Operate
This may occur if the instrument loses power (AC line)
briefly. Turn the power switch off and on again to restart.
Displays E514 on power up on display Hold (GPIB) LOCAL button, RANGE button, and FINE
button as you are powering up the instrument. This
clears the Laser board EEPROM, LLLLL will be displayed
on the display. Need to recalibrate the Laser Current
Source.
Instrument resets at power up or any LASER
mode change
Hold (GPIB) LOCAL button, RANGE button, and FINE
button as you are powering up the instrument. This
clears the Laser board EEPROM, LLLLL will be displayed
on the display. Need to recalibrate the Laser Current
Source.
LASER CURRENT SOURCE
Power on, but no current output Check Interlock pins on LASER input connector on
instrument rear panel. These pins must be shorted either
directly or through a switch.
If OPEN CIRCUIT indicator is lit check the load
connections and then try again.
Check the OUTPUT ON switch, the corresponding LED
should be lit.
SYMPTOM
CORRECTIVE ACTIONS
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