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it does have transmit and swing it keys rite on freq i just got home and getting the shop warmed up to get the voltages for 75 i will try what you suggested also

also to you and all Happy Thanksgiving

great info and thanks im going to check it but to clarify we pretty much ruled out the audio chip?? im going to check tr17 and tr 15 as NZ8N posted I really appreciate the help and info

I will get some readings tomorrow and post up thanks for the reply

it does not have audio on pa i tried that and the meter doesn't move at all i tried everything i could thik of to try to get some kind of noise from it transmit section is good just no recieve at all and thanks for the reply i will look at tr 15

anything for the KL400 ?

Thanks 75 i guess back to the chalkboard lol im going to order a few more hoping i just had a bad one

Thanks for all the great work and valuable info

I have this connex 3300hp that i bought on ebay the transmit and modulation are working very well but there is no recieve. I did check all the usual mic ext speaker squelch even on pa there is no recieve i pulled the audio ic and there was a TA7222 in it I replaced and same thing i was just...

agree with Onelasttime i have experienced the same voltage jump and everytime it has been the 2n3055 regulators in the power supply