TM 11-6130-392-34
Go to section V.
to section V.
4-2) and TB1-E4 with multimeter.
resistance between TB1-E15 and TB1-E16.
(1) If no fault is found; go to step c.
for faulty wiring between TB1-E6 and TB1-E16,
(2) If a fault is found; repair broken connection
or replace faulty lead (if any plug-in connector must
repair fault. Go to section V.
be replaced; send to depot). Go to section V.
(2) If resistance measured is 5,000 ohms or
TB1-E1 (fig. 3-3).
to section V.
Test 11. Low Voltage Power Supply Test.
(1) If no fault is found; replace CHANNEL
a. Get small flat-blade screwdriver, or equiv-
section V.
alent; adjust A11-R3 (fig. 3-4) until all channels
read between 45 mA and 50 mA.
(2) If a fault is found; repair broken connection
or replace faulty lead (if any plug-in connector must
(1) If this adjustment can be made; go to step
b.
be replaced; send to depot). Go to section V.
Test 13. Current Set (S7-S11) Switch Test.
(2) If adjustment, within 45-50 mA, cannot be
a. Set POWER switch to OFF and check for con-
made; set POWER to OFF, replace A11 power sup-
tinuity (fig. 4-2 and 3-3) at following points, using
m a i n t e n a n c e ) . If same problem repeats; adjust
panel meter M1 (Section IV, para 4-36). Go to sec-
If Faulty Channel is:
Check Between:
tion V.
1 . . . . . . . . . . . . . . . . . . . . . . . . . S7-6 and TB1-E21
b. Set all FINE ADJ controls fully clockwise.
2 . . . . . . . . . . . . . . . . . . . . . . . . . S8-6 and TB1-E21
3 . . . . . . . . . . . . . . . . . . . . . . . . . S9-6 and TB1-E21
t h r o u g h each of 5 positions; check panel meter
4 . . . . . . . . . . . . . . . . . . . . . . . . S10-6 and TB1-E21
reading.
5 . . . . . . . . . . . . . . . . . . . . . . . . S11-6 and TB1-E21
(1) If each channel reads 200 mA, or more; go
(1) If no fault is found; go to step b.
to section V.
(2) If a fault is found; repair broken connection
(2) If one or more channels reads less than 200
or replace faulty lead. Go to section V.
mA; set POWER switch to OFF. Replace A11 power
b. Check for
continuity (fig. 4-2 and FO-1) at
problem repeats; adjust panel meter M1 (Section
If Faulty Channel is:
Check Between:
1 . . . . . . . . . . . . . . . . . . . . . . . . . . S7-5 and S4A-1
Test 12. Terminal Board (TB1) Test.
2 . . . . . . . . . . . . . . . . . . . . . . . . . . . S8-5 and S4A-2
3 . . . . . . . . . . . . . . . . . . . . . . . . . . . S9-5 and S4A-3
POWER to OFF. Set all CURRENT SET switches to
4 . . . . . . . . . . . . . . . . . . . . . . . . . S10-5 and S4A-4
50 mA position. Measure resistance of TB1-R10 (fig.
5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . S11-5 and S4A-5
3-3).
(1) If no fault is found; replace CURRENT SET
ohms; go to step b.
faulty channel(s). Go to section V.
(2) If resistance is not between 18,500 and
(2) If a fault is found; repair broken connection
or replace faulty lead. Go to section V.
Section IV. Maintenance of Battery Charger
4-13. Component Replacement and Repair
WARNING
Set POWER switch to OFF and disconnect
Chassis and panel mounted components listed in
power cable from power source before per-
forming maintenance inside battery
general support level of maintenance. Open circuits
charger.
may be soldered and individual leads may be re-
placed, if necessary. Replacement of printed wiring/
4-14. Battery Holders (1 and 2)
board connectors or wiring harness, and repair of
printed wiring/board assemblies and A15 assembly
Removal and installation of either battery holder
components is specifically limited to depot level
maintenance.
a. Removal.
4-15