TM 5-3610-285-14
i. Slide filter holder off photomultiplier tube.
CAUTION
Use gloves to handle photomultiplier tube. Fingerprints will damage tube.
j.
Remove and retain photomultiplier tube.
k.
Aline pins on ribbon cable with holes in socket on new photomultiplier board assembly.
l.
Apply even pressure to seat connector.
m.
Reinstall photomultiplier tube on new photomultiplier board assembly.
n.
Slide filter holder on photomultiplier tube.
o.
Carefully slide new photomultiplier board assembly into holder.
p.
Slide filter holder forward and reinstall lockscrew.
q.
Reinstall filter light shield.
r.
Reinstall chassis cover and secure with screws.
s.
Plug in reflection/transmission probe cable.
t.
Plug in power cord.
NOTE
If equipment continues erratic operation, perform densitometer checkout and
alinement procedures (paragraphs 7-16.17 or 7-16.18).
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