TM 55-4920-390-13&P
5-8. REPLACEMENT OF DISCHARGE CAPACITORS . If it is determined that one or all of the discharge capacitors,
Part C101, C102 or C103 require replacement, proceed as follows -
NOTE
Physical size and shape of the capacitors is important since off-size parts will not fit. Avoid
substitutes.
a) Mechanically loosen circuit board as in 5-7 a thru d. DO NOT REMOVE ANY WIRING.
b) The discharge capacitors can now be seen and visually inspected and electrically checked. (Look for oil leaks in
capacitors.)
c) Loosen "Position" pot (R101) and "Gain" pot (R102) and withdraw from their holes. (It shouldn't be necessary to
unsolder them.) Remove Heyco strain relief bushing from Signal wire.
d) Remove three screws holding capacitor clip from near open end of case. Remove clip.
e) Remove one screw from other capacitor clip. This screw is "buried" deep between toroidal transformer (T201)
and electrolytic can filter capacitor (C201). Remove "ground" wire from electrolytic can only. Leave soldered to
fuse holder. Leave the five wires soldered to this "buss". Withdraw the plate carrying T201 and C201 and the
two pots.
f) Unwire capacitors as required tagging wires to facilitate replacement.
g) Remove and replace capacitors as required.
h) Restore, reversing preceeding procedures.
5-9. REPLACEMENT OF REFLECTOR . If the reflector (Part #B2755) will not take a polish and is damaged or dull,
replace it as follows.
a) Open hand-held lamp and remove flash tube as in 5-2 a thru e. WEAR PROTECTIVE GLASSES.
b) Unsolder tube clip (which clips on "free" end of flash tube) from wire penetrating side of reflector. (This joint uses
high temperature solder.)
c) Remove the three nylon screws from lamp clamp at rear of reflector. This will result in a basketfull of loose parts
-- save them.
d) Remove the four nuts securing the front of the reflector (open end).
e) Remove reflector.
f) Replace reflector, reversing procedure above.
5-6