TM 5-3610-257-14
g.
Remove phototube bulb assembly from case.
h.
Note wire positions on defective phototube bulb(s) and remove wires.
i.
Remove defective phototube bulb(s) from holder.
j.
Install new phototube bulb(s) into holder.
k.
Reconnect wires as noted.
1.
Install phototube bulb assembly into case.
m.
Reinstall bottom cover.
n.
Reinstall top retaining screws.
o.
Reinstall diffusers.
p.
Remount phototube.
q.
Plug in power cord.
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