My receiver is a Kenwood KR-A46 but I couldn't find a forum for that model, so I'm using this one as the closest.
For several years the station presets memory won't hold with power off. I didn't get a schematic when I purchased the unit so don't know how the memory is held. Is it a replacable battery, a capacitor, etc.. I didn't want to take the cover off until I had some idea of what to look for. Any help would be greatly appreciated.
Have same unit, exactly the same problem: station presets lose setting when power is off. I've opened the unit; there is no apparent battery of any kind.
As long as the unit is powered up, the station pre-sets seem to hold. There IS a capacitor across the power switch. Some A/C will therefore be transmitted into the unit when plugged in, even with the switch off. If the capacitor is open, no charge will enter the unit when the power switch is open. I will probably replace this capacitor and see if that fixes things, but it may take several days to do so. Has anyone else tried this?
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Rms the power Is a continuous power that an amp or radio should never run less than ,,,Max power is usually a gimmicky power that s rated by the manufacturer ,usually at a very high voltage and for a very short time .Do not pay much attn to Max power , Quality product rates their product in RMs and usually has test results printed for the consumer .
it sounds like the button cell battery inside the receiver has gone bad if you take the cover off you will see it its about the size of a quarter. You can purchase a new one for around $4. Let me know if this works or if you need assistance in taking the cover off the receiver
Sorry, I haven't addressed the station memory problem further since replacing the AC switch by-pass capacitor, which same didn't solve the problem. I'm using the receiver only as an amplifier for a Roku SoundBridge, so the station memory isn't a problem at present. When we return to AZ, I may look at it again.