TM 11-6130-392-34
Table 3-3. Troubleshooting Test Procedures Continued
Column 2
Column 3
Column 1
Malfunction Indication
Reference, or Instruction
Test Procedure
None
None . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
( 2 1 ) If troubleshooting tests are now
completed, turn POWER switch to
OFF. Remove power cable from 115
VAC source. Remove band from in-
terlock switch, S6 and remove clip
leads from REMOTE BATTERY
jacks. Assemble retainer and cover
and set controls per para 3-10e. Refer
to figure 3-1.
Reposition switch S6; then, if no light,
Lamp does not light . . . . . . . . . . . . . . . . . .
(22) Connect power cable to 115 VAC. Set
send to next higher maintenance level.
POWER switch to ON. POWER ON
lamp should light.
( 2 3 ) Set POWER to OFF. Disconnect
power cable. Return battery charger
to service.
"off," install A9, and go to step g.
3-12. Fault Isolation Tests
(2) If POWER switch trips "off," replace A8
Tests, for use by direct support (DS) maintenance
(Section IV, para 3-14), re-install A9 and A10. Go to
p e r s o n n e l , are included for specific components
section V.
authorized for testing and replacement at DS level.
g. Set POWER switch to ON.
T h e s e tests, with component references and de-
(1) If POWER switch stays "on," set POWER
scriptions, are as follows:
"off," install A10, and go to step h.
Test 1. Power Supply Assembly (A11) Short Cir-
(2) If POWER switch trips "off," replace A9
cuit Test.
(Section IV, para 3-14), re-install A10. Go to section
a. Remove printed wiring board assembly (A11,
V.
h. Set POWER switch ON.
( 1 ) If POWER switch stays "on," return to
POWER switch to ON.
(1) If POWER switch trips "off"; install A11
and go to step b.
(2) If POWER switch trips "off," replace A10
(2) If POWER switch r e m a i n s "on"; replace
(Section IV, para 3-14), and go to section V.
Test 2. POWER ON Lamp (DS1) Test.
A11 (Section IV, para 3-15). Go to section V.
a. Set POWER to OFF.
b. Remove A6, A7, A8, A9, and A10 charging
b. Remove lens cap, with lamp from charger.
modules (fig. 3-2).
c. Set POWER switch to ON.
sistance of lamp.
(1) If POWER switch remains "on"; set
(1) If resistance is less than 500 ohms, go to
POWER "off"; install A6, and go to step d.
step d.
(2) If POWER switch trips "off"; discontinue
(2) If resistance is more than 500 ohms, replace
testing and forward battery charger to next higher
lamp. Go to section V.
maintenance level.
d. Set POWER to OFF and check that battery
d. Set POWER switch to ON.
charger interlock switch (S6) arm is firmly held in
(1) If POWER switch remains "on"; set
the down (closed) position.
POWER "off"; install A7, and go to step e.
(1) If interlock switch is firmly held down, dis-
(2) If POWER switch trips "off," replace A6
continue testing and forward charger to next higher
(Section IV, para 3-14), install A7, A8, A9, and A10.
maintenance level.
Go to section V.
(2) If interlock switch is not firmly held down,
e. Set POWER switch to ON.
firmly hold switch arm down with a rubber band.
(1) If POWER switch stays "on," set POWER
Return to table 3-3.
"off," install A8, and go to step f.
Test 3. Relay Control Test.
(2) If POWER switch trips "off," replace A7
a. Set POWER to OFF.
(Section IV, para 3-14), install A8, A9, and A10. Go
to section V.
S3-TP1 (fig. 3-3) on terminal board (TB1). Connect
f. Set POWER switch to ON.
return lead to TB1-E21. Measure DC voltage.
(1) If POWER switch stays "on," set POWER
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