Hardware Introduction
2-15
overcurrent/short-circuit protection works, the output stops and does not affect other outputs.
They except HV can recover automatically after the failure is removed.
2.3.5. Maintenance
Before test or service, connect the power supply board as the figure below shows. The
electronic load A is necessary while the electronic load B is not. When adding the electronic
load B, ensure the load for 390VDC does not exceed 0.1A and is added only when loads for
other outputs are minimum.
You can add loads only for +5V, +13.5V, +12V and HV outputs. It is recommended to start
debugging when the load is a little heavier than the minimum and to increase the load during
the debug if necessary.
After connecting the board properly, you can locate the failure and service the board
according to the procedure shown in the figure below. The following procedure is just a basic
instruction and you should operate according to the actual situation.
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