Toggle sidebar Toggle sidebar
  • You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

I picked up an MFJ 868B and have an issue

I’m wondering if I’m not getting the correct current to the Op-Amp? How could I test the output of the RF Board I guess it would be mounted separately from the main board? It has the 3 wires coming off it.
 
If your getting 12v at Q4 collector, 12v pin 4 of TLC2274 IC and 12v at Q1 collector.... I would check for something on that rear board and check all your switches that they are good and switching properly. Look at the schematic how the switches toggle and interact with one another.
 
  • Like
Reactions: Crambone

dxChat
Help Users
  • No one is chatting at the moment.
  • @ BJ radionut:
    +1
  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.


      Top Bottom