TM 10-3610-202-14
CHAPTER 20
REPAIR OF FLUORESCENT LAMP ASSEMBLY
20-1. General.
Two rows of fluorescent ceiling lamp assemblies provide
illumination for the editorial and photomechanical
shelter. The five-lamp rows are controlled by two
switches mounted on the interior aft
wall of the shelter to the left of the shelter door. Each
fixture consists of two halves, the upper half being
secured to the shelter ceiling. The lower half which clips
into the upper half contains the ballast transformer, lamp
starter, fluorescent tube and sockets and associated
wiring. (See fig. 20-1.)
Figure 20-1. Fluorescent Lamp Assembly
20-2. Fluorescent Lamp Assembly.
a Inspection. Inspect the fluorescent lamp
assemblies as follows:
(1)
Inspect fluorescent tubes for discoloration
and adequate illumination or failure. Replace as
required.
(2)
Inspect
fluorescent
tube
sockets
for
damage and security.
(3)
Inspect lamp fixture halves for damage
and
correct attachment.
(4)
Inspect starter and replace if defective.
(5)
Inspect ballast and replace if defective.
b.
Removal. Remove ballast as follows:
(1)
Grasp fluorescent lamp tube, rotate 90
degrees and lower from tube sockets.
(2)
Rotate the starter counterclockwise and
remove from starter socket.
(3)
Position the lights circuit breaker in the
20-1
