Removal and Installation Procedures
TDS 420A, TDS 430A & TDS 460A Service Manual
6-49
d. Working from the rear of the oscilloscope, remove the single T-15
Torx
R screw from the bracket that secures the DSP assembly to the rear
of the main chassis.
A09 DSP Assembly
Mounting Screw
(short), DSP
Assembly
D1 Bus (Removed
by the Access
procedure.)
Mounting
Screw, DSP
Assembly
Mounting
Screw, Display
Assembly
Figure 6- 19: A09 DSP assembly removal
e. Grasp the board by its edge and pull outward to unplug it from J5 of the
backplane assembly to complete the removal.
5. Reinstallation:
a. Perform in reverse order substeps 4a-4e, reversing the removal instruc-
tions in each substep to reinstall the assembly.
b. See the following procedures in the order listed to replace modules
removed by the access procedure:
H A08 Jumper Board Assembly, D1 Bus, and Board Supports on page
6--44 (board supports and D1 bus only)
H Front Cover, Rear Cover, Cabinet, Rear EMI Gasket, and Cabinet
Handle and Feet (page 6--27) to reinstall the cabinet and rear cover
H Line Fuse and Line Cord (page 6 --26) to reinstall the line cord,
which completes the oscilloscope reassembly
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