Removal and Installation Procedures
6-60
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
1. Locate module to be removed: Replacement of this board must be performed
by a Tektronix Service Center. Locate the Acquisition board in the locator
diagram, Figure 6--8, on page 6--21. Additional modules to be removed:
CAUTION. This board should only be replaced by Tektronix.
H Trim
H Bottom cover
H Left and Right covers
H Front and Rear Power Distribution Boards (PA Bus board)
2. Orient the instrument: Set the instrument so its top is down on the work
surface and its bottom is facing you.
3. Remove the Acquisition board: See Figure 6--37, page 6--57.
a. Disconnect EXT REF and REF OUT coaxial cables from the rear panel
BNC connectors.
b. Remove the eight T-15 Torxdrive screws securing the Acquisition
assembly to the front chassis.
c. Remove the six T-15 Torxdrive screws securing the Acquisition
assembly to the chassis.
d. Slide the Acquisition board toward the rear of the instrument. Then lift
the board out of the instrument.
NOTE. If you are replacing the acquisition board assembly, do not remove the
remaining parts, they are part of the replaceable assembly.
4. Remove the Front Panel Combination assembly: See Figure 6--41,
page 6--63.
a. Remove the TekConnect ribbon cable by grasping the sides of the
connector and pulling up.
b. Remove the four cables connected to the BNCs. Take note of which
BNC each cable is connected to for later reassembly.
c. Remove the 7/16 nut from the inside front of the 4 TekConnect buckets.
d. Remove the three T-15 Torxdrive screws securing the Acquisition board
to the Front Panel Combination assembly.
Acquisition Board,
TDS7000B Series
To Next Page
Loading...
