I inherited a Cyrus FM6 tuner but noticed it "forgets" the programmed preset stations when I unplug it from mains.
Does anyone know whether there's a battery inside, or a supercap or such?
I have not opened the tuner yet, and I do not have the schematics.
The user manual does not mention the memory at all.
Thanks!
Does anyone know whether there's a battery inside, or a supercap or such?
I have not opened the tuner yet, and I do not have the schematics.
The user manual does not mention the memory at all.
Thanks!
Clean off the dust from the PCB, leave it connected to mains for a few hours.
Then see.
My Kenwood does that, especially in the rainy season.
Some sort of leakage circuit from a capacitor keeps the memory alive when there is no power.
After a few hours, the capacitor seems to start functioning.
Then it remembers, even if it is connected to mains for an hour daily. But in the monsoon, that goes.
I use it as an amp, so not a big thing for me to bother about.
Then see.
My Kenwood does that, especially in the rainy season.
Some sort of leakage circuit from a capacitor keeps the memory alive when there is no power.
After a few hours, the capacitor seems to start functioning.
Then it remembers, even if it is connected to mains for an hour daily. But in the monsoon, that goes.
I use it as an amp, so not a big thing for me to bother about.
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Thanks; I actually do have a FM7 too (no RDS, but IMHO a nicer display+signal strength meter).
Do you know whether that screwed-up EEPROM can be fixed/replaced/reprogrammed?
You could simply have used a cheap FM module, but it would not have been so much fun.
You get USB, SD card and Bluetooth interface, and a remote.
It can also switch an additional aux input.
Less than $2 here without power supply, which is 5 volts, if not there a 7805 works.
You get USB, SD card and Bluetooth interface, and a remote.
It can also switch an additional aux input.
Less than $2 here without power supply, which is 5 volts, if not there a 7805 works.
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