Service Manual UDP6900 Series Digital Control Power Supply
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To prevent static electricity damage to components, wear properly grounded anti-static wrist and foot
straps during installation and use anti-static mats in a tested anti-static environment.
Steps
1. When remove the front and rear cover, the case frame can be removed. Remove the switch lever by
pulling it outward with a slight vertical force, and use a T10 quincunx screwdriver to remove the 7
screws on the PCB (the screw location and quantity of some models are different, depending on the
specific situation), as shown in the following figure.
2. Take out the power board.
3. Reverse execute the above step to reinstate.
6. Troubleshooting
Service Rank
The information and procedure contains in this section can help you determine whether the instrument has
problem.
If the power is failure, please send the instrument back to UNI-T Service Center for repair. Because the
user cannot replace the internal electronic components or modules.
FAQ
Use the following table to isloate the possible faults. The table is not exhaustive, but it can help you to
eliminate quick-fix issues, such as the power cable is loose.
For more details, please see Troubleshooting Flowchart.
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