Question about Magnum DeltaForce CB Radio

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Magnum Delta Force Radio: The schematic does not match what is on my work bench! Schematic shows 10 tact switches,there are eight on the unit. If I trace back the leads from the rotary frequency changer then they go to different pins on the micro processor than those shown on the diagram. I am only repairing this radio as a favour, I am not making any cash out of it so I may give up shortly (not like me, I usuallly find the fault!) There must be more than one "Version" of the Magnum Delta Force? How do I know what I've got? Where do I get a full schematic/ drawing?

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  • Jon Holloway Mar 13, 2009

    Hi, thanks for responding. The serial number on the back of the Magnum Delta Force radio that I am repairing is 02030099. The problem is in the system control, it will TX/RX perfectly but the micro does not change channels via the chan up/down knob. It looks like someone has played with it a bit (Ahh!) but I am used to repairing equipment that HAS to be repaired even if it takes WEEKS (My day job is testing and fault finding on things like electron microscope power supplies, costing £10,000+) It would make life easier if I had a proper schematic and layout for this Magnum radio. Cheers

  • Jon Holloway Mar 14, 2009

    Thanks for getting back to me. I already tried the schematic at cb tricks. If you trace back the connections from the switches in the switch matrix then some of them go to different pins on the micro processor. Also the numbers of the switches on the pcb do not match their functions on the diagram. The schematic shows two switches for up/down frequency change which are in parallel with the rotary chan knob, these do not exist on the unit I have! Perhaps there is more than one version of the Magnum Delta Force?

  • james morgan May 11, 2010




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Usualy that is a sign that someone was trying to get more channels then it already has which is imposible to get any mor ok check this web site go to the radio information section go to m look for the magnum radio section look for the deta force you should find all you need there. good luck with your projec and god bless you.

james morgan
morgans electronics

Posted on Mar 13, 2009


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