Sidebar 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.
  • @ Wildcat27:
    Hello I have a old school 2950 receives great on all modes and transmits great on AM but no transmit on SSB. Does anyone have any idea?
  • @ BJ radionut:
  • @ ButtFuzz:
    Good evening from Sunny Salem! What’s shaking?
  • dxBot:
    63Sprint has left the room.
  • dxBot:
    kennyjames 0151 has left the room.


      Top Bottom
      Back