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Sony STR-DA333ES, does it have an internal battery for memory?

Hi,

Purchased new about 10 years ago, my Sony STR-DA333ES works perfectly other than loosing preset radio station memories when power is removed.

Is there an internal battery in this unit that I can change?

Thanks..



Re: Sony STR-DA333ES, does it have an internal battery for ...

There is a super cap located behind the front panel. The panel can be removed easily (with some connectors disconnected from under the cover, but the super cap. is under the PCB which is held in with a bunch of screws. Down side is you'll need to solder it out and in.
EDLSG105H5R5C looks like a good replacement and is available in single quantities from Arrow for about $4 USD.