AN/MRC-145A wire 54C burnt out

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AN/MRC-145A wire 54C burnt out

Postby zatesta » 28 Jun 2010, 13:13

We had this problem with a COMM (AN/MRC-145A )truck. One of our Marines found a burnt out wire and no one knew what it is. After some research i found this.

"On the M1097R1's my unit recieved from Red River Depot (recap program), there is a wire with a diode in the middle (looks like a small fuse link) and has a yellow tag on it. It plugs into the 54C wire by the fuel injector pump and grounds to the intake manifold bolt. This same part is also plugged into the 25B wire and then goes to ground, by the horn. Russell from Red River says that it is an upgrade that reduces feedback to the PCB. You won't find it in any TM.

The NSN is 5961-01-180-5634

We recieved these vehicles directly from the RECAP program with a burnt out semiconductor already. No telling how quick these will need to be replaced.. "

I'm still waiting for this part to come in but I'll updated when we get it.
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Re: AN/MRC-145A wire 54C burnt out

Postby SUPERMOD » 31 Jan 2012, 11:08

here are some images of this diode and wire for those of you wondering.
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54c 2.JPG
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54c 1.JPG
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Re: AN/MRC-145A wire 54C burnt out

Postby bugginu24 » 23 Aug 2012, 10:09

Thanks for the help on this one. I could not find any info and then ran across your post. Now passing the info on to the Soldier.
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Re: AN/MRC-145A wire 54C burnt out

Postby SUPERMOD » 23 Aug 2012, 12:06

This is a great post isn't it? A few months back it saved me too. Posts like this we should see more often. Thanks, and keep up the good posting!

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Re: AN/MRC-145A wire 54C burnt out

Postby GIHIPPIE » 26 Mar 2013, 23:24

We are having this same problem on all of our M1097R1's... Does anybody know if we can just bypass this diode all together?
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Re: AN/MRC-145A wire 54C burnt out

Postby Chaotic » 27 Mar 2013, 12:26

MODS MODS MODS!!!!
im not saying to not do it.. but before you go out there and refit your fleet.. make sure you have the proper mod for this...
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3529/3524/3522/3521/0411/0431 and your basic rifleman....
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Re: AN/MRC-145A wire 54C burnt out

Postby mnsoldier » 21 Nov 2013, 07:17

Ran across this problem as well was nice to find some info out there. Does anyone know if the TM's have been updated with this item or will be updated? Also if it makes the vehicle NMC, I am guessing not as its not in the manual.
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Postby SUPERMOD » 22 Nov 2013, 17:10

Pqdr's!
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Re: AN/MRC-145A wire 54C burnt out

Postby teamratchet » 21 Jan 2015, 10:28

Really good stuff! We are experiencing a problem with all the grounds getting voltage. We believe 54C might be the cause, will update soon.
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Re: AN/MRC-145A wire 54C burnt out

Postby motortuh4 » 16 Apr 2015, 11:07

i just spent the last 2 weeks trying to figure this situation out. i should have known to go to the REAL source of 352X info. thanks guys.
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