TM 5-6665-202-13
Chart 4-1. Troubleshooting - Continued
Chart 4-1. Troubleshooting - Continued
MALFUNCTION
MALFUNCTION
TEST OR INSPECTION
TEST OR INSPECTION
CORRECTIVE ACTION
CORRECTIVE ACTION
HEADSET-CONTINUED
HEADSET-CONTINUED
2. RASPY (LOW VOLUME OR AMPLITUDE)
Clean inside of battery cap and remove any
SIGNAL HEARD IN HEADSET.
corrosion. Tighten cap securely.
Step 3.
Replace output amplifier module.
Step 1. Test battery.
Refer suspect module to direct support main-
If battery voltage is below 8.5 volts, replace
tenance personnel for testing, repair or re-
battery.
placement.
Step 2. Replace amplifier module.
Step 4.
Replace headset.
Refer suspect module to direct support main-
Refer suspect headset to direct support
tenance personnel for testing, repair, or re-
maintenance personnel for testing, repair, or
placement.
replacement.
Section VII. MAINTENANCE OF MINE DETECTING SET
established, test each wire of the cable, each ter-
4-9. Carrying Case
minal and the contact connection for continuity.
a. Disassembly. Disassemble the carrying case
If malfunction has not been found, refer to fig-
and inserts according to sequence of index num-
ure 6-1 and assure that battery adapter is as-
bers assigned to figure 4-1.
sembled correctly.
b. Cleaning, Inspection, and Repair.
(1) Wipe the inserts with a clean, dry cloth.
4-11. Receiver and Transmitter Assembly
(2) Clean the case with an approved clean-
a. Battery.
ing solvent and dry thoroughly.
(1) Removal. Refer to figure 2-1 and re-
(3) Remove any glue deposits from the
move the battery.
carrying case after inserts are removed, and be-
(2) Cleaning and Inspection. Refer to para-
fore replacing inserts.
graph 4-1 for cleaning and inspection of the
(4) Clean the latches, handles, and pres-
battery.
sure relief valves with a clean cloth dampened
(3) Test. To test the battery, use a multim-
slightly with an approved cleaning solvent.
eter and place the function switch in the d.c.
(5) Inspect the cushion inserts for cuts,
position. Place the range selector switch on the
tears, embedded foreign objects, deformed com-
50 volt range. Turn detector power selector
partments, or other defects.
switch to the intermediate position. Remove
(6) Inspect the ease for breaks, cracks,
transmitter-receiver from case. Check battery
dents, holes, corrosion, or other defects.
voltage by placing negative probe of multimeter
(7) Inspect the handles for proper opera-
on battery tube end terminal and positive probe
tion, breaks, bends, loose mounting hardware,
to ground. Read voltage. If battery voltage is
or other defects.
less than 8.5 volts, replace battery.
(8) Inspect the latches for bends, rust,
loose mounting hardware, or other defects.
(4) Installation. Refer to figure 2-1 and in-
(9) Inspect the pressure relief valves for
stall battery in the receiver and transmitter ais-
proper operation, damaged threaded areas, ob-
sembly.
structed air ports, corrosion, or other defects.
CAUTION
(10) Replace a damaged component as nec-
Do not leave the battery in the receiver
essary.
and transmitter assembly when the de-
c. Reassembly. Reverse disassembly procedure
tector set is not in use. The batteries
and assemble the carrying case.
will sometimes corrode, causing damage
to the terminals inside the battery hous-
4-10. Battery Adapter (fig. 1-1)
ing.
a. Cleaning. Wipe the battery adapter with a
b. Modules.
clean, dry cloth.
(1) Removal.
b. Test. Check battery adapter for continuity.
Touch the probes of a multimeter to the contact
(a) Release the two snap fasteners at the
and the battery case adapter. If continuity is not
sides of the receiver and transmitter assembly