TM 5-6675-321-14
WARNING
Death or serious injury may occur from electrical shock unless power is
unplugged before servicing .
a.
Turn power switch OFF.
b.
Unplug power cord.
c.
Lift viewing surface and set aside.
d.
Remove fluorescent lamps and set aside.
e.
Tag and disconnect wires at wire nuts.
NOTE
Before removing any wire nuts, make note of electrical lead colors and
routing to wire nuts .
f .
g .
h.
i .
j .
k.
l .
m.
n.
o.
p.
Remove wire ties.
Remove ground lead attaching nut from left side of ballast transformer
bracket and remove lead.
Remove screws, washers, and nuts from ballast transformer bracket and
remove defective ballast transformer.
I n s t a l l n e w b a l l a s t t r a n s f o r m e r i n c o r r e c t p o s i t i o n ( n o t i n g w i r e
colors), and secure brackets in place with nuts, washers, and screws.
Reconnect ground lead to transformer bracket screw and secure with nut.
Connect wires. Secure with wire nuts.
Secure wire bundles with new wire ties.
Reinstall fluorescent lamps.
Reinstall viewing surface.
Plug in power cord.
Turn power switch ON.
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