Oops! I spoke too soon.

[jimbowilly]

Hi,
Recently I decided to install a Jetstream (part# JTCS3M) 3 position antenna switch which would allow me to take advantage of SSB on my Galaxy dx 949, the rfx 75 on my Cobra 29 ltd chrome, along with some of the noise toys on some much older radios I have purchased over the years.
I spoke into the mic of the Cobra 29ltd with the antenna switch selected for my Galaxy dx 949. I know, I know. Lesson learned. I'm totally disappointed, this was my favorite radio.
I replaced the burnt resistor at R55. I don't see any bad capacitors. Since I purchased this Cobra with a RFX-75 installed, it's tough to see any further immediate damage.

Anyone every speak into their radio without the coax attached and repair the problem?

 

[jimbowilly]

Never mind, I found the problem. Cap at JP36 ( installed as part of RFX-75 installation) had also failed.

Thank You to everyone who has taken the time to be so helpful over the years. And Thank You WorldWideDX for providing a place to compile all of the past conversations regarding radio repair. I'm beginning to realize there's not much of a reason to post questions regarding radio repairs? Took me all of maybe 20 minutes to find a post which lead me thru the transmit circuit and to the damaged capacitor.

Jimbo

 

[nomadradio]

Way cool! Gotta love it when a plan comes together.

Congratulations for sticking with it and getting a result.

73