Removal and Installation Procedures
6-46
TDS 420A, TDS 430A & TDS 460A Service Manual
5. Reinstallation:
a. Perform in reverse order substeps 4a--4i, reversing the removal instruc-
tions in each step and substep to reinstall the assembly. After plugging in
the CPU to front panel cable at J101, be sure to dress the cable so that
the loop of extra cable is tucked behind the front-panel assembly, as
shown in Figure 6--17. The cable should come from J101 on the CPU
assembly and route directly through the chassis opening to the front-pa-
nel cavity.
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)
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
A03 CPU Assembly
Mounting
Screw (Short),
CPU Assembly
Mounting
Screw, Unused
Board Bracket
Mounting
Screw, CPU
Assembly
Figure 6- 17: A03 CPU removal
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