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here is the schematic. start at the PA CB switch and make sure you have about 8 volts to both sides of the switch. did you clean the switches as mentioned. why did you just now mention it did not have the leds working. I went back and read all you have posted on it. did you finish with all new electro caps.
do you have about 3 volts going to the 2 middle pins of the readout. should be the bottom pins. need to see where you are losing voltage to the led pins. have you done the D14 mod as of yet. it may be causing you to lose voltage to the front end. I searched the web looking for a voltage chart and could not find one.
does any one here on the forum have a cb124 sams book. this radio is in it. it will have the voltage chart in it.
Please advise me to what is a good replacement mic for my SR-497HPC... Answer: 497 is "wired like Cobra", so many choices available. That radio does not need a power mic, so purchase a stock "coffin style" mic with a decent cord, like the ones that Astatic uses. The Superstar DM-507 is my go-to. https://www.ebay.com/itm/3050474478...adANq91JSiEEnz8EGqPJRBloTgEyaVsBoCtoMQAvD_BwE $12.99 + .99 cent shipping.
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