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WFM90D and WFM91D Service Manual
6-3
Remove and Replace
This section tells you how to remove and replace the customer replaceable
modules and parts of the WFM90D or WFM91D Handheld Waveform, Vector,
Picture, and Audio Monitor.
CAUTION. To pr event damage to the instrument, disconnect the power adapter
and remove installed batteries from the monitor before starting disassembly. See
Batteries on page 6--28.
Tools Required
Use the tools in Table 6--1 to disassemble the instrument to its individual
modules. Some of these tools are required only for removal of specific instru-
ment components.
Table 6- 1: Tools required for module removal
Name Description
Torx screwdriver handle Accepts Torx-driver bi ts
T-10 Torx tip Torx-driver bit for T-10 size screw heads
#1 point Phillips tip
9/16″ hexagonal driver Deep socket
1/4″ hexagonal driver
Flat blade screwdriver
Tweezers or needle-nose pliers
Cleaners See Cleaning on page 6--1
Soldering iron 40 W
Solder 2% RMA flux content solder