TM5-6675-326-14
5-12.3 Replace Ballast Transformer
PERSONNEL REQUIRED:
1 Topographic instrument repair specialist MOS 41B
TOOLS :
N o . 2 c r o s s - t i p s c r e w d r i v er
MATERIALS/PARTS:
B a l l a s t t r a n s f o r m er
REMOVAL:
WARNING
ELECTRICAL SHOCK
Unplug power cord before servicing the
p o r t a b l e t r a c i n g / s c r i b i n g b o a r d.
F a i l u re
to do so may result in death or serious
i n j u r y .
a .
Turn power
b .
Remove one
screws.
c . T u r n c l i ps
OFF, and unplug power cord.
screw from each of four clips.
Loosen other
9 0 ° t o l e f t o r r i g h t.
5-21
