Aiwa compact disc /2disc player

It doesn't matter what you do, that the system will power down after being on for exactly a minute? Or do you find that when you try using it a few times in a row that the shut off happens a little sooner each time? Did this suddenly start happening or was it something that began occurring gradually (meaning it would power on for an hour and then auto shutoff)?

It sounds to me like some electrical component inside is failing and that the self-protection circuitry design is kicking in. Or it could be that the power transformer is worn out and can't maintain power for more than a minute.

Keep in mind that repairs to these older electronics can end up costing as much as it would be to buy a new unit (and new units offer much more technology anyway).