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TM 11-6625-3023-14/ET904-AA-MMA-010/E154 TS3684/TO 33A1-12-1173-1
Table 6-2. Test Set Checkout Procedure - Continued
Test instructions
Normal indication
c. Set DVM to AC and connect
280 VAC +/-2%
positive test lead to test point C, negative
lead to test point D.
d.
(1)
Set DVM to DC and connect
(1)
+390 VDC +/-5%
positive test lead to test point C,
negative lead to GRD. Switch
S5 to SHORT position.
Switches S2 and S3 not
pressed.
(2)
Press switches S2 and S3
(2)
+340 VDC +/-5%
at same time.
e. Connect positive lead to test point E.
Switch S5 to SHORT position.
(1)
Switches S2 and S3 not
(1)
+770 VDC +/-5%
pressed.
(2)
Switches S2 and S3 pressed
(2)
+680 VDC +/-5%
at same time.
f. Connect positive lead to test point F.
Switch S5 to SHORT position.
(1)
Switches S2 and S3 not
(1)
+770 VDC +/-5%
pressed.
(2)
Switch S4 to BULK position.
(2)
+210 VDC +/-5%
Press switches S2 and S3 at
same time.
(3)
Switch S4 to EXTERNAL
(3)
+78 VDC +/-10%
position and press switches S2
and S3 at same time.
g. Connect positive lead to test point I,
negative lead to GRD. Switch S4 to BULK
position. Switch S5 to OPEN position.
CAUTION
Take readings within 10 seconds.
6-13

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