SPS5000X series service manual
Quick Guide for General Failures
The general hardware failures are described in the following. Reading the
following information can help you quickly handle some easy hardware failures
with more convenience.
1.
No start-up after pressing the Power button:
(1) Check if the power cord is correctly connected.
(2) Check if the power button is usable.
(3) Check whether the fuse has been burnt out. If the fuse needs to be
changed, please contact SIGLENT as soon as possible and return the
instrument to the factory to have it repaired by qualified personnel.
(4) Check if the power connector is properly connected to the main board.
(5) If the instrument still does not work normally, please contact SIGLENT.
2.
The instrument starts up with a dark screen:
(1) Check the connection between the screen backlight circuit board and
the mainboard.
(2) If the instrument still does not work normally, please contact SIGLENT.
3.
No response after pressing any button or abnormal display of the
screen:
(1) Check if the two end of the connector between the keypad circuit board
and the main board is properly connected.
(2) If the instrument still does not work normally, please contact SIGLENT.
4. Constant voltage output is not normal
(1)Check if the output power of the power supply is satisfied.
(2) Check if there is a short circuit between the load and the power supply
or contacted poorly.
(3) Check if the current setting value is low.
5. Constant current output is not normal
(1)Check if the output power of the power supply is satisfied.
(2)Check if the load and the power supply are open or connected poorly.
(3) Check if the voltage setting is low.
