TM 11-6130-392-34
section V.
to step h.
Test 7. TB1 and Transformer (T1) Test.
h. Set POWER to OFF; remove memory battery
B1 (TM 11-6130-392-12).
a. Check position of INPUT VOLTAGE switch,
rear of battery charger:
i. Measure voltage across battery B1, using
multimeter.
(1) If INPUT VOLTAGE switch is in 115 VAC
position; go to step b.
(1) If voltage is more than 1 VDC; replace P2
battery connector (Section IV, para 4-36). Go to sec-
(2) If INPUT VOLTAGE switch is in 230 VAC
position; set POWER to OFF. Set INPUT VOLT-
tion V.
AGE switch to 115 VAC position. Go to section V.
(2) If the voltage is equal to or less than 1 VDC;
replace B1. Go to section V.
b. Set multimeter (F =
V, R = 200 V). Con-
nect negative () lead to C1 negative () terminal
(fig. 3-3). Connect positive (+) lead to A11-TP7
S12-C2 and S12-6, and between S12-C3 and S12-9
(1) If voltage is more than 30 VDC; go to step c.
(1) If continuity is good; check for faulty wiring
between S12-6 and TB1-E8 (fig. 3-3) and between
(2) If voltage is equal to or less than 30 VDC; go
to step g.
TB1-E7 and S12-C3. If wiring is not faulty; replace
c. Set POWER to OFF. Set multimeter (F = S2, R
TB1-R2 (Section IV, para 4-31). Go to section V.
= 200 K Ω ). Measure resistance between TB1-E1
(2) If continuity is not good; replace S12 (Sec-
tion IV, para 4-30). Go to section V.
(fig. 3-3) and TB1-E2 with multimeter.
Test 5. SET CHARGE TIME Switch (S3) Test
(1) If resistance is less than 17,500 ohms; go to
a. Set multimeter (F =
V, R = 200 V). Con-
step d.
nect negative lead () to C1 negative () (fig. 3-3).
(2) If resistance measured is equal to or more
With positive lead; measure voltages at test points
than 17,500 ohms; replace TB1-R1 (Section IV, para
4-31). Go to section V.
(1) If the voltage is more than 9 VDC at each
resistance between TB1-E5 and TB1-E6 (fig. 3-3).
pin; go to step b.
(1) If resistance is less than 9,500 ohms; go to
(2) If the voltage is equal to or less than 9 VDC
step e.
at any one pin; set POWER to OFF, replace S3 (Sec-
tion IV, para 4-25).
(2) If resistance measured is equal to or more
b. With positive lead of multimeter, measure
than 9,500 ohms; replace TB1-R1l (Section IV, para
voltage at S3B pins 1, 2 and 4 and S3C pins 1, 2 and
4-31). Go to section V.
4.
r e s i s t a n c e between TB1-E15 and TB1-E16 (fig.
(1) If the voltage is less than 1 VDC at each pin;
set POWER to OFF, check for faulty wiring be-
3-3).
tween S3A-2 and A12-28 connector (fig. 3-2 and
(1) If resistance is less than 5,000 ohms; go to
step f.
3 - 6 ) , S3B-1 and A12-26 connector, S3B-2 and
A12-22 connector, S3B-4 and A12-13 connector,
(2) If resistance measured is equal to or more
S3B-8 and A12-27 connector, S3C-1 and A12-2 con-
than 5,000 ohms; replace TB1-R12 (Section IV, para
n e c t o r , S3C-2 and A12-4 connector, S3C-4 and
4-31). Go to section V.
f. Perform panel meter (M1) adjustment (Section
A12-3 connector, and S3C-8 and A12-1 connector.
Repair faulty wiring. (If plug-in board connector
IV, para 4-36).
must be replaced; send to depot). Go to section V.
(1) If meter can be adjusted, go to section V.
(2) If the voltage is 1 VDC or more at any pin;
(2) If meter cannot be adjusted; replace panel
set POWER to OFF, replace S3 (Section IV, para
meter Ml (Section IV, para 4-24). Go to section V.
Test 6. Transformer (T1) Output Test.
POWER to OFF.
h. Peel or pick away red staking compound on
a. Set POWER to OFF. Check continuity be-
transformer T1 (fig. 4-1).
tween T1-8 (fig. 4-1) and A11-22 (fig. 3-2 and 3-4)
i. Set POWER to ON. Measure AC voltage across
and between T1-9 and A11-23 with multimeter.
T1-1 and T1-2.
(1) If continuity is good; replace faulty T1
transformer (Section IV, para 4-18). Go to section V.
(1) If voltage is more than 100 VAC; go to step
(2) If continuity is not good; check for the faul-
j.
ty wiring between A11-22 connector and T1-8, and
(2) If voltage is equal to or less than 100 VAC;
between A11-23 and T1-9, or for a faulty connector.
set POWER to OFF; replace S1 (Section IV, para
Repair open lead or replace wire (if plug-in board
4-21). Apply a 0.04-0.08 inch coat of red staking
connector must be replaced; send to depot). Go to
compound (SM-A-852314) on T1-1 through T1-5
4-13
