Aiyima TPA3251 on/off switch

[russc]

Maybe one contact is power & one contact is (un)mute with a short delay built in to the circuit. Replacing the switch would restore to original condition however it worked.

 

[captain pugwash]

except that a pad from one of the unidentified legs has lifted. I will try the RS switch and seen what happens.

 

[russc]

Post photos.
It might be a pad only for soldering the lug & not actually go anywhere?

 

[russc]

Looking at data sheet -
https://www.ti.com/lit/ds/symlink/t...53241&ref_url=https%3A%2F%2Fwww.google.com%2F
My guess is one switch contact holds reset low when device is switched off.
When switched on, reset will be held low while a capacitor charges; the delay eliminates turn on pops.

 

[captain pugwash]

attached is leg with lifted pad

 

[captain pugwash]

I see that earlier versions of the Aiyima without the pop circuit had spdt switches so I guess the 'spare' leg may have been used for this?