Mitsubishi Electric WD-57831, Service Manual

Page: 11 / 91

PWB-DM Removal
After removing PWB-SIGNAL:
1)
Remove
9
screws (A) from the
PWB-DM.
2) Remove 2 hex screws (B)
from
the DVI c
onnector
.
3) Lift the PWB-DM from the
chassis box.
Chassis (top view)
Exhaust Fan Replacement
1) Remove
4
screw
s
(A)
and
remove the
exhaust
duct cover.
2) Slide the Exhaust Fan from the
duct and unplug the JF connec-
tor.
Note: Save the rubber cush-
ions, they do not come with a
new fan.
3) When installing the fan ensure
the leads come out the bottom
of the fan as
shown in the
picture.
A
Exhaust
Fan
A
A
A
If PWB-DM is replaced, transfer the PWB-E2P
from the old DM to the new DM.
Then perform the data transfer procedures
"Copy Light Engine E2PROM to DM"
and "Download WB Alignment to FMT"
described on page 33.
A
A
A
B
MODEL: WD-57831 / WD-65831 / WD-73831
Page 11