Microprocessor Check
Observe the LED light on the main board, which indicates the working state of
microprocessor chip. If the light turns on, then the corresponding codes have
been loaded successfully and the chip is in an operating state. Otherwise,
there may be a problem with it.
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 burned out. If the fuse is blown,
please replace with a fuse of the same rating.
(4) Check the connection between the power supply and 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 keypad circuit board and the main
board.
(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 the connection between the keypad circuit board and the main
board.
(2) If the instrument still does not work normally, please contact SIGLENT.
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