Removal and Installation Procedures
6–32
TDS 500B, 600B and TDS 700A Service Manual
b. Separate the circuit board with attached cable (number 1), from the rear
plate with attached brackets (number 2).
1
2
3
Figure 6–13: Remove Circuit Board From Assembly
3. Replace circuit board:
Equipment Required: One
3
@
16
inch nutdriver.
a. Replace the failed circuit board with a replacement A23 SerPar Board
ordered from the factory (see Replaceable Parts List for detailed
ordering information). Do in reverse order steps a and b of the Circuit
Board Removal From Assembly procedure on the previous page.
b. Reinstall the A23 SerPar Board assembly in the oscilloscope. Do in
reverse order steps a and b of the Remove circuit board from assembly
procedure shown above.
c. Then see the following procedure to complete reassembly of the
oscilloscope:
H Rear Cover and Cabinet (page 6–18).
d. To ensure the A23 SerPar Board is working correctly, perform the
power-up short diagnostics procedure described on page 6–57.
Additional modules Removed: D1 bus and analog-and digital-power cables.
1. Assemble equipment and locate modules to be removed
a. Have handy a screwdriver with a size T-15 TorxR tip (Items 1 and 2).
A29 Video Trigger Board
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