TM
55-4920-244-14
(12) Replace capacitors with broken
a. Removal.
or damaged leads and any capacitor which shows
(1) Remove deck assembly (para.
excessive leakage or shorted condition. Replace
4-32).
capacitor if capacity shown on tester is below
(2) On printed circuit board assem-
rated value.
bly (49) locate terminal designators adjacent to
solder terminals and make sure connecting wire
(13) Replace transformer if any wind-
attached to solder terminals is marked with a cor-
ing is open, shorted to another winding, or
responding number or letter. Identify and tag
shorted to the case.
any unmarked wires.
(3) Unsolder all connecting wiring
from printed circuit board assembly.
(4) Remove attaching screws (50)
and spacers (53) and remove printed circuit
The circuit board assembly contains ad-
board assembly from deck (128).
justable potentiometers used for adjusting the in-
sulation check circuit and precision resistors used
b. Disassembly. No disassembly of the
in the insulation check circuit and other circuits
printed circuit board assembly is required. Indi-
in the tester.
vidual components can be tested in place by con-
Figure 4-8. Deck Assembly (sheet 1 of 4).
4-16
