The last time I blogged about this unit was back in October 2016. So I uncovered it in the "un-move" along with a cable which I had thought was just a spare but nope it belongs to this beast. Basically, it's a Resolver which drives the 'bug' or pointer and 'OBS' there is also a manual control to set the bug on the heading you desire. Currently, the 'bug' is at 0, and the 'OBS' which is the reverse is on 180.

 

CPPPhase Shifter 30 ~Wires
TypePS-17-E-1
Stator2 phase5 voltsBlack & Yellow
Purple & Green
Rotor1 phase5 voltsWhite & Red

 

The following pinout and signal/component information came from TM 11-5826-215-35 figure 76.1.

 

ID-453/ARN-30Interface Cable
ComponentMnemonic

I/O

COLORARC -MARC-14320DB-25MHeader 6
Pointer, Vertical,  Right   PCM_PVRH-BridgeAA1
Pointer, Vertical,  Left  PCM_PVLBB2
Pointer, Horizontal, UpPCM_PHUH-BridgeCC3
Pointer, Horizontal, DownPCM_PHDbrokenDD4
Flag, Pointer, Vertical   PCM_FV

1/2

H-

Bridge

EE5
Flag, Pointer, Vertical (RTN)FF6
Flag, Pointer, HorizontalPCM_FH

1/2

H-

Bridge

GG7
Flag, Pointer, Horizontal (RTN)HH8
Flag, To     PCM_FTH-BridgeII9
Flag, From  PCM_FFJJ10
ResolverGROUNDgreen + gray`KK12
ResolverPCM_S1yellowLL11
GROUNDn/aMM13
ResolverPCM_S2blackNN14
ResolverGROUNDredOO15
ResolverPCM_RwhitePP16
n/aQQ17
n/aRR18
n/aSS19

 

Mega_signals.h

#define PCM_PVR  2;

#define PCM_PVL   3;

#define PCM_PHU  4;

#define PCM_PHD  5;

#define PCM_FV     6;

#define PCM_FH     7;

#define PCM_FT     8;

#define PCM_FF     9;

TI_signals.h

#define PCM_S1   tbd;

#define PCM_S2   tbd;

#define PCM_R     tbd;