Author Topic: Problem with 7100 operation !!  (Read 13089 times)

W4RG

  • Newbie
  • *
  • Posts: 5
    • View Profile
Re: Problem with 7100 operation !!
« Reply #15 on: 2014-09-03, 22:51:00 »
Hi Mike, I don't really care about the warranty but would like to know why Icom made the change.  So I would hesitate to remove the resister if that action would reduce the longevity of the radio.  Will wait for the PCB board and I thank you for doing that for us.  73, Ray

W4RG

  • Newbie
  • *
  • Posts: 5
    • View Profile
Re: Problem with 7100 operation !!
« Reply #16 on: 2014-09-08, 23:36:35 »
Hi Mike,  Could I place an early order for the pcb 1258M?  So it could be shipped as soon as available.   73, Ray

kb8u

  • Newbie
  • *
  • Posts: 5
    • View Profile
Re: Problem with 7100 operation !!
« Reply #17 on: 2014-09-10, 03:36:46 »
I made a level converter and solved my problem.  I used a 3.3V three terminal regulator, bypass capacitors for it, and a 74AUP1G07 fed with about 1 volt from a 1K and 2.2K ohm resistor voltage divider.  The open drain output is pulled up to 3.3V through a 1k resistor.  I tapped power from the 8 volts to front panel.

sm2o

  • Administrator
  • Hero Member
  • *****
  • Posts: 3004
    • View Profile
    • sm2oan
    • Email
Re: Problem with 7100 operation !!
« Reply #18 on: 2014-09-10, 06:58:06 »
Great . There are many ways to solve it, My drawing shows how ICOM have done it in the main unit

73 de mike

W4RG

  • Newbie
  • *
  • Posts: 5
    • View Profile
Re: Problem with 7100 operation !!
« Reply #19 on: 2014-09-30, 22:05:26 »
Received the 1258m board and installed it.  I now have remote operation thru my LAN.  Problem solved so far.  Thanks, Mike.  73, Ray