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Removal and Replacement
TDS 310, TDS 320 & TDS 350 Service Manual
6Ć21
Mounting Screws (4)
Main Board
Mounting Screws (4)
Figure 6Ć10:ăMain Board Removal
9. Lift the main board assembly away from the oscilloscope to complete its
removal.
Continue with this procedure only if you need to replace a BNC,
attenuator hybrid, EMI shield, or attenuator shield (see FigureĂ6Ć11).
Otherwise, skip to stepĂ15 to reinstall the assembly.
10. Straighten the two twistĆlock tabs that lock the attenuator shield in place.
11. Lift the shield up and toward the back of the main board to complete the
removal of the shield.
12. If you need to remove an attenuator hybrid perform the following subĆ
parts:
a. Grasp the EMI shield with both hands and carefully pull it straight up
to remove the shield.
b. Unsolder all 34 leads to the attenuator hybrid.