Maintenance
4-20
TDS3000C Series S ervice Manual
10. Snap the battery board onto the post on the rear chassis.
11. Install two screws to secure the battery board to the rear chassis.
12. Install the power switch extension onto the power switch so that it angles
outward and to the side of the rear chassis assembly.
13. Place the oscilloscope assembly face down on soft surface (such as an
anti-static mat), with the bottom facing you.
14. Position the rear chassis assembly above the oscilloscope assembly.
15. Dress the DC power cable under the power supply and toward you.
16. Insert the braided external trigger cable into the BNC connector on the rear
chassis (four-channel models only).
17. Position the left side (fan end) of the rear chassis onto the two small tabs.
18. Secure the rear chassis to the front chassis with four screws (two screws near
the BNC connector, one screw on the fan end of the chassis, and one screw
onto the AC filter shield). See Figure 4--5.
19. Connect the following cables (see Figure 4 --5):
a. Line trigger cable to main board connector J980
b. DC power cable to main board connector J900
c. Display backlight power cable to the battery board
20. Turn the oscilloscope around so the top is facing you, and connect the
following cables (see F igure 4--5):
a. Rear USB cable to main board connector J815
b. Ethernet cable to main board connector J920
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