Marshall Code25 powered speaker with integrated burnt output

[eletmoraes]

When I opened it to do the repair, I found a bulged 220uF/25v electrolytic capacitor in the power supply. Replace capacitor. The device still doesn't work. Taking a closer look at the amplified audio output, I found the integrated audio output completely burned out (I can't identify the code). Just know it's smd and 28 pin. It must be from the TPA3118 Class D line.

 

[nigelwright7557]

I would replace all the electrolytics before trying a new SMD IC.

 

[tomchr]

Looks like the TO-220 packaged voltage regulator (or whatever it is) has seen better days too.

Tom