TM 11-6130-392-34
wiring. Apply 0.04-0.08 inch coat of red staking
terminals. Go to section V.
j. Measure AC voltage across T1-6 and T1-7.
compound (SM-A-852314) to A14-CR1-2 positive
(+). Go to section V.
(1) If the voltage is more than 30 VAC; go to
Test 9. VOLTAGE TEST SELECT Switch (S12)
step k.
Short Circuit Test.
(2) If voltage is equal to or less than 30 VAC;
a. Set POWER to OFF.
set POWER to OFF, replace T1 (Section IV, para
-
TB1-E2 (fig. 3-3).
k. Set multimeter (F =
V, R = 200 V). Set
c. Set multimeter (F = Ω, R = 200 Ω). M e a s u r e
POWER to OFF.
l. Peel or pick away red staking compound from
resistance between S12-1 and S12-3.
(1) If resistance is less than 2 ohms; replace
Cl positive (+) terminal (fig. 3-3). Connect negative
lead () of multimeter to C1 negative () and con-
(2) If resistance is equal to or more than 2
nect positive lead to C1 positive (+).
m. Set POWER to ON; check multimeter.
ohms; check to find low resistance to ground at
(1) If voltage is more than 30 VDC; set POWER
fault; reconnect wire on S12-1. Go to section V.
to OFF, check for faulty wiring between A14-CR1-2
Test 10. Metering Circuit Test.
(fig. 4-2) and C1
positive (+) terminal (fig. 3-3) and
a. Set CHANNEL SELECT switch to position 1.
between C1 (+) and A6-21 connector (fig. 3-7). Re-
b. Check continuity from A6-4 connector (fig. 3-2
pair faulty wiring. Apply 0.04-0.08 inch coat of red
and 3-7) to TB1-E2 (fig. 3-3).
staking compound (SM-A-852314) to T1-1 through
T1-5 and C1 (+). Go to section V.
(1) If continuity is good; go to step c.
(2) If continuity is not good; go to step e.
(2) If voltage is equal to or less than 30 VDC;
replace A14-CR1 (fig. 4-2) resistor assembly compo-
with VOLTAGE TEST switch depressed.
coat of red staking compound (SM-A-852314) to
(1) If resistance is less than 32,000 ohms; go to
C1 (+) and to T1-1 through T1-5. Go to Section V.
step d.
Test 8. High Voltage Power Supply Test.
(2) If resistance measured is equal to or more
voltage across T1-6 and T1-7.
than 32,000 ohms; go to step f.
(1) If voltage is more than 10 VAC; go to step
b.
(2) If voltage is equal to or less than 10 VAC;
(1) If continuity is good; replace S5 (Section
set POWER to OFF, replace T1 (Section IV, para
4-18). Go to section V.
between S5-2 NC and TB1-E22. Go to section V.
b. Measure AC voltage across two AC terminals
e. Check continuity between TB1-E2 and S4A-C2
of A14-CR1 (fig. 4-2) resistor ass embly component.
(1) If voltage is more than 10 VAC; go to step c.
(1) If continuity is good; replace CHANNEL
(2) If voltage is equal to or less than 10 VAC;
s e t POWER to OFF, check for faulty wiring
section V.
between A14-CR1-1 (AC) and T1-7. Repair faulty
between TB1-E2 and S4A-C2. Go to section V.
wiring. Go to section V.
c. Set POWER to OFF. Peel or pick away red
r e s i s t a n c e between TB1-E1 and TB1-E2 with
staking compound on A14-CR1-2 positive (+) ter-
VOLTAGE TEST switch depressed.
d. Set multimeter (F =
(1) If resistance is less than 17,500 ohms, go to
V, R = 200 V). Con-
step g.
nect negative () lead to A14-CR1-4 negative () and
(2) If resistance measured is 17,500 or more
connect positive (+) lead to A14-CR1-2 positive (+).
e. Set POWER to ON; check multimeter
section V.
(1) If voltage is equal to or less than 20 VDC;
g. Set multimeter (F = Ω, R = 20 K Ω). Measure
set POWER to OFF, replace A14-CR1 (Section IV,
(1) If resistance is less than 9,500 ohms; go to
(2) If voltage is more than 20 VDC; set POWER
step h.
to OFF, check for faulty wiring between A14-CR1-2
(+) and C1 (+), C1 (+) and A6-21 connector, and C1
(2) If resistance measured is 9,500 or more
(+) and A14-R13-2 (fig. 4-2 and 3-3). Repair faulty
4-14