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Ok, I've made an improvement. Turns out one of the cover screws is needed to ground a section of the board. The one radio station now comes in better, enough for me to hear the DJ say it's 104.3. Tuner still does nothing. AM behaves mostly the same, except instead of the popping sound, it's just constant bass. Turning the volume down low enough eliminates the sound. Seems to have a threshold.
Wires for the antenna adjustment trimmer were reversed, but no effect on correcting it (one is grounded). All suspicious solder joints have been reflowed. The tuner board is connected via spring pins in holes, those were all cleaned.
What the heck would cause it to ignore the tuner and be stuck on one station? And also, is there any way I can get a Sam's for this, not knowing the model number?
Last edited by MadMan; 05-10-2021 at 10:07 PM.
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