TM 1-2840-252-23-3
G-27
FAULT CODE A2, N2 SET POTENTIOMETER EXPANDED INSTRUCTIONS(CONTINUED)
Step 12
Refer to manufacturer's procedure for diagnosing and replacing harness.
Step 15
Refer to manufacturer's procedure for diagnosing and replacing harness.
Step 16
Refer to manufacturer's procedure for diagnosingand replacing potentiometer.
RESISTANCE-CHECK SUMMARY
Resistance (Ω)
Connector
Component
No.
Contacts
Limits
Nominal*
N2 Set Potentiometer
PL1
h&z
(a)
3600 - 4200
4000
Lowest Setting
z & AA
(b)
800 - 1400
1000
h & AA
(c)
4500 - 5500
5000
a b
>0.10
0.20
(c)
N2 Set Potentiometer
PL1
h&z
800 - 1400
1000
Highest Setting
z & AA
(d)
3600 - 4200
4000
h & AA
(e)
4500 - 5500
5000
d e
<0.90
0.80
(f)
N2 Set Potentiometer
FADEC
4000
A&B
3600 - 4200
Lowest Setting
Control
Panel
B&C
(g)
800 - 1400
1000
A&C
(h)
4500 - 5500
5000
g h
<0.10
0.20
(i)
N2 Set Potentiometer
FADEC
1000
A&B
800 - 1400
Highest Setting
Control
Panel
B&C
(j)
3600 - 4200
4000
A&C
(k)
4500 - 5500
5000
j k
<0.90
0.80
(l)
*At 25
C
G-53
