Radio has no modulation

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Could be both

is it in the RX stage or the audio output (audio op amp)

should be vr 14 and vr18

Do you have receive? If so you might have blew the voice chip. If you don't have receive or transmit you most likely blew those final transistors.

is it steady output on AM with no modulation swing. then change the Audio transistor. SSB should work. they feed straight through to rf final. if no modulation on either mode, then check the mic, audio ic preamp.

the reason i saked is that if you turn the power all the way up it tends to reverse modulate. this happens because the power is using all the transmit voltage for the final and the modulation circuit is trying to use as much as it can so the radio is most likly out of alignment and needs to be realigned. its not that hard if you have the service manual and the correct equipment. i have a factory authorized shop and we do alot of realignments due to the cb shops tweaking the 10 meter radios.

VR16 is not the low power adjustment, it's the CW Tone.
As far as I can tell, there is no low power adjust.
Try a different resistance pot for the RF Power.

Same as Omega
#1 Mic Audio
#2 Receive
#3 Transmit
#4 Up/Down for channels
#5 Ground/Shield
#6 13 volt