Mitsubishi Electric WD-52531 Service Manual page 9

PWB-SIGNAL Removal
1) Remove 6 screws (c).
2) Unplug all connecting cables.
3) Remove PWB-SIGNAL
If PWB-SIGNAL is replaced, see page 22 to
perform "Download WB Data to FMT"
Exhaust Fan Replacement
1) Remove 7 screws (A) to
remove the lamp duct rear
cover.
2) Slide the Exhaust Fan from
the duct and unplug the JF
connector. Remove the
rubber fan holders, they do
not come with the replace-
ment fan.
3) When installing the fan
insert the fan in the re-
moved cover first.
4) Insure the leads come out
the bottom of the fan and
the label on the fan is
facing upwards.
MODEL: WD-52531 / WD-62531 / WD-62530
A
Page 9
PWB-DM Removal
1) Remove 6 screws (D).
2) Unplug all connecting cables.
3) Lift PWB-DM from the chassis.
If PWB-DM is replaced, see page 22 to
perform "Copy Light Engine E2PROM to DM"
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