I have aRoss 1915 am/fm/sw radio. Recapped the unit and it played great on all 3 bands. Now the AM and SW bands have quit working. Sprayed out the bandswitch with contact cleaner and lube- no go. Could it be the wire going to the antenna? Which antenna is used for the AM/SW band? Any help appreciated.

If you've lost the AM and SW sections but the FM is still working, I'd suspect the local oscillator is dead.
FYI - these radio generally share an oscillator on AM and SW.

Closest schematic I've found is for a Ross RE-1913N, which is in TSM-80.
Unfortunately, I'm missing that copy. Drat!

Check for a loose connection near the IF can that is RED. Thats the local oscillator coil.
If its working, you should hear it in another am radio tuned 455 Khz away.

Let us know what you find out,
~ Mitch ~

OK, Mitch, I got the radio out, found the red IF can and set up another radio about 455 KC from the freq on the Ross. Poked and probed around, no noise on the reciever at all. Guess the can is bad. Where do I find one of these puppies? BTW, there is a schematic of the 1915 on the inside of the case of this radio, but it is really small. Have to use a magnifying glass to see any details. Wish there was a way to blow it up for some more detail. Thanks ED

Hi Ed,

You had it working last January, so something inside has drastically changed.
Those red IF cans rarely go bad. I would suspect a broken wire, dirty contact,
iffy solder connection or a failed transistor. Do you have a good camera with a macro setting?
If so, you can take a picture of the schematic and blow it up. In addition, please post a few
closeup photos of the circuit board, (both sides), so we might be able to spot something.

I'm pretty darn sure the schematic for the Ross NE-1913N which I mentioned was in TSM-80,
will match your radio. Yours is a 13 transistor receiver, so the 1913 suffix make perfect sense.
Probably the only difference between the two is cosmetic.

Lets make certain the local oscillator is dead. Set the Ross at 1000 Khz and listen for the local
oscillator signal on a nearby radio at 1450 Khz. You'll know when you hear the oscillator, but
practice with two good AM radios so your certain of what you're listening for.

Hope that helps,
~ Mitch ~