First picture is a close up of the J105 plug, green wire(10khz) is clipped flush with the plug, this is done at factory on boards destined for radios without a 10khz switch. There are 1 or 2 mods I could try to give this 3300 that functionality if I want it.
Second picture is foil side after cleaning up solder joints for the green/white wires and replacing C196. Still a lot of cleanup to do back there, holding off until my Amazon order gets here...99% iso alc, static-safe cleaning brushes, and water-based flux.
Ran some more tests tonight between this radio and my General Lee monitoring radio. Both on ch3, TX from the GL to the 3300, nothing on 3300, meter doesn't even move. Move up to ch4 or flip the +10khz switch up on the GL, 3300 receives on ch3 but with some feedback/noise. TX from the 3300 is fairly clean, surprising from the poor condition this radio was in.
I'm getting pretty close to having this back to fully functional and ready to be thrown on the shelf with the others, waiting on me to learn more so I can start aligning them.
Also, the back panel is definitely bent. The antenna connector area is pushed in. Guessing someone dropped it and it landed on that end.
Edit: The diode added to R238 and R249 being clipped is a popular mod done to this board to allow you to dead key at 1w and swing up to max, but apparently some folks prefer turning up VR14 isntead of clipping R249.
I can't seem to find any info about the green/white wires from J103 to those pads between the 3.5mm jacks.
