Hello everyone,

Nobody have an idea please ? I'm blocked with that IC....

Thanks

Hello everyone !

I'm trying to repair the power supply of my Elipson W35 Bluetooth speaker. The problem is that the PWM circuit has no reference "it's a smd marked U4 on the pcb. The reference has been erased at the factory. Here are some photos of the circuit; could you please help me identify the circuit? Thank you, and have a great day


Important point: the resistor R108 marked R100 smd mount is a replacement and I'm note sur if it's the good value, it's relay the mosfet to the ground capacitor 450v
the mosfet is a :[B]SVF12N65F[/B]​
I...

Hi everyone!

I'm a passionate electronics hobbyist who loves tinkering with various devices. Whether it's repairing Hi-Fi systems, amplifiers, or building custom speakers, I enjoy every step of the process. I'm always eager to learn new skills and share knowledge with fellow enthusiasts. Looking forward to contributing to the community and exchanging ideas!

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