Removal and Installation Procedures
TDS7104 & TDS7054 Service Manual
6-- 45
1. Locate module to be removed: Locate the microprocessor board in the locator
diagram Internal Modules, Figure 6--8, on page 6--19. Additional modules to
be removed:
H Trim
H Bottom cover
H Left and Right covers
CAUTION. The microprocessor is susceptible to static-discharge damage. Service
this component only in a static-free environment. Observe standard handling
precautions for static-sensitive devices while servicing the oscilloscope. Always
wear grounded wrist and foot straps while servicing the microprocessor, NLX or
processor boards.
2. Remove the microprocessor: See Figure 6--27, on page 6--46.
a. Disconnect the fan power cable J401 from the NLX board.
b. Push down and pull out on the holding bracket located nearest to the
outer edge of the circuit board.
c. Pull out and unlatch the remaining bracket.
d. Lift the microprocessor socket locking lever upward. Remove the
microprocessor.
3. Reinstallation: Reinstall the microprocessor to the NLX board as follows:
a. Install the microprocessor in the socket.
b. Lower the socket locking lever.
c. Make sure the fan/heatsink assembly is positioned with the fan cable
toward the outer edge of the circuit board.
d. Place the fan/heatsink assembly on the microprocessor to allow you to
latch the bracket to the tab that is nearest to the center of the circuit
board.
e. Set the remaining edge of the fan/heatsink down on the microprocessor
and fasten the remaining bracket to the assembly.
f. Connect the fan power cable J401 to the NLX board.
Microprocessor
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