Remove and Replace
WFM90D and WFM91D ServiceManual 6-7
LCD Display Assembly
The LCD display assembly doesnot contain any replaceable subparts. If you
need to replaceany part of the display assembly, you must replace the entire
assembly.
CAUTION. Toavoid damaging the LCD display, do not touch the face of the
display becauseit is hard to clean and is easily scratched.
LCDDisplay. The LCD display assembly wasupdated at serial number B020100.
HToreplace an LCD Display assembly for serial numbers below B020100,
order the FrontPanel Display Replacement kit from Tektronix and follow
the instructions provided in the kit.
HToreplace an LCD Display assembly for serial numbers B020100 and
above, follow the instructions labeledLC D -N ewerInstruments on
page 6--8.
HToremove an LCD Display assembly for serial numbers below B020100 and
then reinstallthat same assembly (for example, to access another assembly),
follow the instructions labeledLC D - Older Instruments on page 6--11.