Jump to content

AN/ARC 190 HF #2 no transmit


Phelpsvigier
 Share

Recommended Posts

I've got the wiring diagram setup for the XMIT section of HF1 & HF2. I've also got 3 slides I made that explain the whole eff'd up scenario that the engineers came up with. I will load them up. If you can't click on and save them, I can e-mail them to you. This is for the longwire antennas. The slides are for #1, but the #2 system works the same way. Puzzles me with a coupler fault though.

#1 HF interlock.pdf

#2 HF interlock.pdf

Link to comment
Share on other sites

1. Has the connection on the back of the coupler mount been checked for the #2 side? This is common between #1 AND #2 going to the antenna with the exception of the coupler mating point on the rear of the dual mount.

2. Has a new #1 coupler been installed? Wondering since (ref Fig 4-13 and Fig 4-25 in the -2-13) the ON/OFF (pin J), ANT AVAILABLE and ANT REQUIRED signals come from the #1 coupler and go to the #2 coupler. Just a wild hair, but if the #1 was jacked up and wouldn't supply the proper signal to the #2, then maybe??????

Good luck

Bob

Link to comment
Share on other sites

  • 4 weeks later...

We had a similar problem found on the T/R connector 1 single string of shielding hitting the inner conductor.

Now if we start changing parts in HF system we do resistance test on all wiring ( Better be safe then sorry).

I hope it helps you.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...