Removal and Replacement
6–26
TDS 340A, TDS 360 & TDS 380 Technical Reference
Power Supply Assembly
Required tool: a screwdriver with a size T-15 TorxR tip (Items 1 and 2).
1. Set the oscilloscope so its right side is down on the work surface, with its
bottom facing you.
2. Unplug the main board power cable.
3. Set the oscilloscope so its bottom is down on the work surface, with its front
facing to the right.
4. If Option 14 is installed and its printer power cable is used on your
instrument, unplug the printer power cable.
5. Unplug the monitor and fan power cables.
6. Remove the chassis ground connector by unbolting it from the main chassis.
7. Remove the two screws connecting the power supply assembly to the main
chassis (see Figure 6–15).
8. Gently pull the power supply assembly up and out of the main chassis.
9. Reinstallation: Perform steps 2 through 8 in reverse order, reversing the
removal instructions in each step to reinstall the assembly.
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