VCC element

[tomekskuta]

Hello 👋 I bought my sensor watch some time ago and i broke it 😬 I broke it during soldering the buzzer connector. probably temperature was too high. the sensor watch works correctly, but it drains battery really fast (it's empty in 1 hour). I made some debugging on the pcb elements and my suspicion goes to VCC element. now it has no resistance when I check it with multimeter. I am no good in electronics so I am not sure if it is accurate shot but it's all I have in my mind for now. Could you please give me some info about what element is used there? thanks in advance 🙌

[BarsMonster]

VCC is power supply line - it's not an element.

Unfortunately, rough handling of buzzer can damage microcontroller pin, it apparently causes internal silicon damage. So full fix requires microcontroller replacement.

The only potential easier solution is disable all sounds (hourly chime, alarms e.t.c) and disabling buzzer pin in software - switching it to high impedance input state permanently. I am not sure if this partial fix is available as a patch.