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User Manual
38
11. Lock/Unlock
Long press the "Lock/Unlock" key to lock the front panel, short press this key to cancel the
lock.
When the front panel is locked, the lock icon will be displayed on the top of the main screen,
and the icon will disappear after unlocking.
Chapter 4 Troubleshooting
The following faults may occur during the use of this series of programmable DC power
supplies. Users can refer to the following methods to deal with. If the fault still exists, please
contact Hantek and provide the equipment information of the instrument (How to obtain: ?
->About).
1. The instrument cannot be turned on.
(1) Check whether the power cord is properly connected.
(2) Check whether the power switch on the front panel is turned on.
(3) Unplug the power cord, check whether the AC selector is in the correct position, whether
the specifications of the fuse are correct and whether it is intact. If you need to replace the
fuse, please refer to the "Steps to replace the fuse".
(4) If the problem persists, please contact Hantek.
2. The constant voltage output is abnormal.
(1) Check whether the maximum output power of the selected gear meets the load
requirements.
(2) Whether the cables connecting the load and the power supply are short-circuited, and
whether they are in good contact.
(3) Check whether there is a problem with the load.
(4) Check whether the current setting value of this gear is appropriate. If it is too low, you
can increase the current setting value appropriately.
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