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Page Title:
AIR TEMP C Switch S6 Wiring Check |
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 TM 9-4931-378-13&P
(5) Set AIR TEMP Co switch S6 (25) to each
J4 Pin
J4 Pin
S10 Position
S10 Position
of the following positions and read the
Ps
20
28
LAI +15V
specified resistance for each position. Use
-
37
22
LAI -15V
4-wire measuring techniques. (See table
5V
18
12
5-4, 12 or 13.)
INJV
52
2
+15V
29
14
DVM Reading (ohms)
S6 Position
38
8
-15V
38
-15V
16
373.40 to 375.00
54
400.25 to 401.85
40
Connect DVM between TP7 (14, figure
(3)
419.32 to 420.92
-30
447.82 to 449.42
-15
(4)
Set OUTPUT SEL 2 switch S10 (12) to
476.22 to 477.82
0
LAI +15V.
15
504.52 to 506.12
Read 48.6 to 53.6 ohms on DVM. (See
(5)
30
532.62 to 534.22
table 5-4, 8 or 9.)
45
560.62 to 562.22
Set OUTPUT SEL 2 switch S10 (12) to
(6)
60
588.52 to 590.12
LAI -15V.
71
608.92 to 610.52
(7)
Read 48.6 to 53.6 ohms on DVM. (See
f. OUTPUT SEL 1 Switch S9 Wiring Check. C h e c k
table 5-4, 10 or 11.)
switch S9 and associated wiring by performing the
Connect DVM positive lead to TP8 (13).
(8)
following procedures:
Set OUTPUT SEL 2 switch S10 (12) to
(9)
(1) Connect DVM negative lead to TP1 (20).
each of the following positions and read
( 2 ) Set OUTPUT SEL 1 switch S9 (21) to
continuity to the designated pin of con-
each of the following positions and read
nector J4 (36). (Pin pattern for J4 is
continuity to the designated pin of con-
shown in figure 5-6.) (See table 5-4, 7.)
nector J4 (36). Figure 5-6 shows the pin
pattern of J4. (See table 5-4, 14.)
J4 Pin
J4 Pin
S10 Position
S10 Position
J4 Pin
J4 Pin
S9 Position
S9 Position
Ps
19
27
LAI +15V
DTR
47
ANLG IN
6
-
19
27
L A I -15V
DR
ANLG OUT
7
56
27
5V
13
REF OSC
DATA
46
49
27
INJV
3
ATS
4
61
CLK
27
+15V
21
27
-15V
9
negative lead from TPI (20,
(3) Move DV
23
( 4 ) Set OUTPUT SEL 1 switch S9 (21) to
o
e. AIR TEMP C Switch S6 Wiring Check. C h e c k
each of the following positions and read
switch S6 and associated wiring by performing the
continuity to the designated pin of con-
following procedures:
nector J4 (36). Figure 5-6 shows the pin
pattern of J4. (See table 5-4, 14.)
Note
J4 Pin
J4 Pin
S9 Position
S9 Position
ATS
DR
62
10
The DVM specified in Appendix D, Sec-
DTR
48
65
CLK
tion Ill shall be used with 4-wire mea-
DATA
53
suring techniques to avoid unwarranted
equipment rejection.
(5) Move DVM negative lead from TP3 (18,
( 6 ) Set OUTPUT SEL 1 switch S9 (21) to
(1) Install CCA 1A3.
each of the following positions and read
(2) Connect DVM positive lead to TP1 (20).
continuity to the designated pin of con-
(3) Connect DVM negative lead to TP3 (18).
nector J4 (36). Figure 5-6 shows the pin
( 4 ) Set OUTPUT SEL 1 switch S9 (21) to
pattern of J4. (See table 5-4, 14.)
ATS.
5-10
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