Author Topic: 12V Power Not working - HELP!  (Read 3570 times)

kl9a

  • Newbie
  • *
  • Posts: 4
    • View Profile
    • Email
12V Power Not working - HELP!
« on: 2018-05-21, 00:27:48 »
This is my 3rd RRC-1258MkII with this issue.

USB power works just fine.  I can see the device via COM1.  I get this error:
"Running on USB power, skipping ethernet init."

The 12V power in the back is not being seen.  Currently *two* units are not working.  Both were unplugged for a few months and I just plugged them back in.

I tried pushing the reset button and resetting them that way and I still get the same problem. 

12V source confirmed OK.

Any ideas on what I can check, or anything else to try?  Seems odd that I have had this problem multiple times!
Would really like to be going for WPX CW this coming weekend...

Thanks,
Chris KL9A

dj0qn

  • Hero Member
  • *****
  • Posts: 2223
    • View Profile
    • DJ0QN / K7DX
    • Email
Re: 12V Power Not working - HELP!
« Reply #1 on: 2018-05-21, 01:46:53 »
Hi Chris,

That is indeed strange. I have seen dead power supplies, but never two of them at once. Resetting the RRC will
never make a difference, because this would be a hardware issue.

Did you try using a "real" 12v power supply? There is a cable included in the RRC box. This would then verify if
the problem is with the PS or RRC itself.

73,
Mitch DJ0QN / K7DX

kl9a

  • Newbie
  • *
  • Posts: 4
    • View Profile
    • Email
Re: 12V Power Not working - HELP!
« Reply #2 on: 2018-05-21, 02:03:06 »
Yes, I have tried a real 12V supply and also the included wall warts.

dj0qn

  • Hero Member
  • *****
  • Posts: 2223
    • View Profile
    • DJ0QN / K7DX
    • Email
Re: 12V Power Not working - HELP!
« Reply #3 on: 2018-05-21, 02:28:37 »
Then I guess Mike will have to contact you about repair, or you should contact HRO if you
bought it from them.

73,
Mitch DJ0QN / K7DX

sm2o

  • Administrator
  • Hero Member
  • *****
  • Posts: 3004
    • View Profile
    • sm2oan
    • Email
Re: 12V Power Not working - HELP!
« Reply #4 on: 2018-05-21, 20:55:59 »
if it does not work on 12V some of the protection  components or the EMI-filter on the 12V input may be damaged. They will of course not be damaged in normal use but can be if overvoltage is applied to the unit

73 mike