I am new and learning to align and repair CB Radio. One question I have is where do I inject a 455Khz signal into a transceiver, Cobra 29 LTD to see if I get receive back. I do have a Oscilloscope, Signal Generator a Function Generator, Frequency Counter. I am a bit embarrassed to ask this but I do not want to blow up anything or get zapped. Looking at the Schematics, what do I look for to inject a signal. I inject a signal in the antenna port for aligning the radio, but not sure where to hook up for signal injection, do I use a C=Ceramic Capacitor that is in the beginning of a circuit? Is there any information that I could read to understand how to do this, or is it in front of my eyes. Thank you in advance for any help repairing this radio,ready to work, Thank you, Mark