TM 1-1520-238-T-10
Change 8
25--9
25--3.
ROTOR BLADES DE-ICE -- WIRING DIAGRAM (cont)
25--3
W119
W119
W117
W119
(SEE NOTE 11) IN
W211
W645
2
1
2
A695
115 VAC HTR PWR IN
DC RTN
AC RTN
28 VDC PROBE HTR PWR IN
SHIELD GND
FEEDBACK COIL OUT
ICE DETECTOR SENSOR
GS433
GS430
J
A
6
9
8
5
7
4
3
2
P
P
P
P
P690
J1
1
A32
PROBE HEATER -- 28 VDC OUT
SHIELD GND
FEEDBACK COIL IN
DRIVE COIL OUT
7
5
4
3
2
1
P691
J2
A63
BITE SELF TEST
28 VDC OUT
50
J3
P673
P/O MRTU TYPE I LH FAB
B7
J403
CPG
CROSSOVER
DISCONNECT
P403
6
P261
J1
P/O ICE DETECTOR SIGNAL PROCESSOR
VDC OUT
METER
SEVERITY
ICING
OUT (SEE NOTE 11)
(FD/LS) DETECTOR FAILURE
OUT (SEE NOTE 10)
(FD/LS) FAILURE TEST
OUT
ICING SIGNAL
CHASSIS GROUND
28 VDC IN
LO
HI
DC GND
5
7
4
8
1
20
21
19
P449
J449
DISCONNECT
LH CROSSOVER
A(2)
B19
B18
P
L
GS572
J1
P261
P261 SP1
P/O DASEC
(SEE NOTE 10) IN
P688
J1
7
14
A69
A331
S3
SWITCH
TO--TEST
PRESS--
3
4
6
5
2
7
1
8
A1
A2
A3
P527
P/O ICING SEVERITY METER
J527
METER
+
--
M1
SHEET 3 OF 5
M50--228--3C
DRIVE COIL IN
F(2)
FD/LS ON
M
GS572
ADK
ADJ
