SDG1000 Service Manual 41
Check the Power Supply
Before performing the power supply testing procedure, please make sure that
the generator is grounded correctly through the protective lead of the power
cord. Take care not to touch or even disassemble the power supply module
without any safety precautions, or you may probably suffer from electric shock
or burn. Here are procedures for testing the power supply:
1. Disconnect the power cord of the generator and then check whether the
fuse has been burnt out.
2. Remove metal shell of the generator using a driver, and then disconnect the
power connector connected to the main board.
3. Focus on the Power Connector which contains 6 pins from Pin1 to Pin6.
Since two of the six pins are ground wire, you can respectively test the other
four pins marked with blue, yellow, red and white to check whether the
voltage value is within the corresponding specified range using a digital
multimeter. The voltage parameters to be tested are listed in table below:
Table 5-2 Voltage parameters of the power connector
If each tested voltage value is within the corresponding spec range referring to
the table above, then the power supply works normally. Otherwise, it proves to
be faulted, please return it to the factory to have it repaired or contact
SIGLENT.
Note: The main power supply provides an input fuse to protect against the
danger of fire in the event of a failure of the power supply circuitry. However,
this fuse will not fail ("open" or "blow") in normal power supply operation except
that a significant overload occurs. Replace the entire main power supply
assembly if the input fuse fails.
To Next Page
Loading...
Need help?
General
