Tektronix ECO8000 Series - Page 55

Maintenance
Remove the Mai
n board
NOTE. Youdonot
need to remove the channel board above the Main board to
remove the Main board.
1. Turn the chassis over and remove the two Main board screws on the bottom of
the chassis near the rear panel with a P1 tip (reassembly torque: 4.0 in/lb.).
Turn the chassis back over.
2. Disconnect the black multi-wire cables from the Main board.
3. Remove the Processor board. (See page 3-10, Remove the Proce ssor board.)
4. Disconnect the ribbon cable from J1210 on the main board.
5. Clip or cut the cable-tie that secures the two power cables from the rear-panel
line filters. (See Figure 3-4.)
6. Disconnect the two power cables from J10 and J20 on the Combiner board.
(See Figure 3-14 on page 3-20.)
ECO8000 Series Service Manual 3–15