TB 9-6625-151-40
(19) Measure resistance between J1-W and J2-Z. MULTIMETER will indicate OPEN.
(20) Set TI S6 to 19 Tube position.
(21) Measure resistance between J1-W and J2-Z. MULTIMETER will indicate <0.5 Ω.
(22) Noting the position of TI S3, measure resistance between connector J1 - Z and
Figure 3. TI Electronic Module.
(23) Repeat technique of (22) above for J1-Z and remaining test points and limits in
Table 9. Continuity J1-Z to Jx Fuze Discharge/Gnd.
S3
Test point
Multimeter
Ω
Switch position
Referenced to J1-Z
Released
M439-C1
Open
Released
M439-C2
Open
Released
M433-C1
Open
Released
M433-C2
Open
Depressed
M439-C1
70-90 Ohms
Depressed
M439-C2
70-90 Ohms
Depressed
M433-C1
70-90 Ohms
Depressed
M433-C2
70-90 Ohms
-
M439-Gnd
<0.5 Ohms
-
M433-Gnd
<0.5 Ohms
b. Adjustments. No adjustments can be made.
9. Powered Switch and Indicators Test
a. Performance Check
(1) Plug in TI power cord to 115 V ac 60 Hz.
(2) With S1 in off or down position, no LED's will be lit.
(3) Set S1 to on or up position. Power indicator will light and digits will appear on
timer display.
(4) Depress and release S7 Test switch. LED's 1,2,3,4,5,6,7 and 8-19 will light.
(5) Depress and release S8 Reset switch. LED's 1,2,3,4,5,6,7 and 8-19 will be off.
(6) Set S1 to Off position and unplug power cord. Remove fuzes M433, M439.
b. Adjustments. No adjustments can be made.
