I'm sure no one cares about this entry level tuner. But for documentation purposes:
I acquired an Sony ST-S444 ES II with the issue of no memory retention.
Meaning, whatever station the tuner is set to, and the stations that are programmed into the unit will be lost when power is cycled.
The memory loss is attributed to a "super cap" that is bad, there's a couple of mentions of this on the internet. Some of this series of tuners have batteries, some don't. People who have changed the battery have said that it did not correct the memory loss issue.
At any rate, I was prepared to replace this cap, but found there is a battery in this unit, an CR2025 (very common).
I replaced the battery and the memory works properly now. Note that the battery is soldered in and it's a bitch to get the old tabs soldered to the new battery.
I had to rough up the battery surfaces a bit to remove whatever, then fluxed, then used smaller wires to solder and connect, rather than the original larger tabs.
I acquired an Sony ST-S444 ES II with the issue of no memory retention.
Meaning, whatever station the tuner is set to, and the stations that are programmed into the unit will be lost when power is cycled.
The memory loss is attributed to a "super cap" that is bad, there's a couple of mentions of this on the internet. Some of this series of tuners have batteries, some don't. People who have changed the battery have said that it did not correct the memory loss issue.
At any rate, I was prepared to replace this cap, but found there is a battery in this unit, an CR2025 (very common).
I replaced the battery and the memory works properly now. Note that the battery is soldered in and it's a bitch to get the old tabs soldered to the new battery.
I had to rough up the battery surfaces a bit to remove whatever, then fluxed, then used smaller wires to solder and connect, rather than the original larger tabs.
