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TM 11-5820-890-20-2
5-25
5.3.
TROUBLESHOOTING FLOWCHARTS. Continued
CHART 3
LS 671 DS1 NOT LIT WHEN CB1 IS SET TO •ON".
(Sheet 1 of 3)
NOTE:
Make sure LS 671 DS1 is
set full CCW.
A
D
B
C
E
F
K
S
U
T
L
H
M
V
R
P
PSA P1
N
J
PSA J1
K
L
F
E
R
M
H
C
B
A
D
J
N
P
1. SET LS 671 CB1 TO OFF.
2. REMOVE PSA FROM MB.
3. SET UP DMM TO CHECK CONTINUITY.
4. AT PSA, PLACE DMM RED LEAD AT J1, PIN B,
AND DMM BLACK LEAD AT P1, PIN C.
1
SH 2
REPLACE LS 671 DS1.
NO
YES
DS1 LIT
?
REPLACED DS1 IS BAD.
NO
YES
OPEN
?
REPLACE PSA.
START
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