Table of Contents
Advertisement
Replacing the Fuse
2706 RF Preselector
3. Turn on the Preselector. If the Preselector does not turn on, have qualified
personnel replace the fuse as described in "Replacing the fuse," later in this
section.
4. All the LEDs should light at least once during the power-on test. If some of
the LEDs do not light, or the Preselector does not finish its test with the
BYPASS LED lit, or the Preselector does not otherwise work correctly, ship it
to your nearest Tektronix service center (follow the Repackaging for
Shipment Instructions in Appendix E).
The fuse is located on the power supply board inside the Preselector. This
procedure assumes that the rear panel of the Preselector is closest to you.
Replace the fuse as follows:
WARNING. To avoid injury, unplug the Preselector before replacing the fuse.
1. Disconnect the Preselector power cord.
2. Remove the two upper screws on the rear panel that hold the top panel to the
Preselector cabinet.
3. Firmly grip the top cover and slide it toward the rear of the cabinet.
4. Find fuse holder F1 on the power supply, as shown in Figure 3.1.
Performance Verification
3–3
Advertisement
Table of Contents
