Main fuse blows immediately, device is not recharging (or running).
I have a Marshall Kilburn I amp that stopped charging the battery. Once it was completely discharged, it stopped working at all. I decided to take a look on the PCB.
The fuse on the main power supply unit was broken, once replaced, it blew up again.
On the backside of the pcb I found a second blown up part, that was named LL10 (see picture). The rest of the pcb looks fine, also the capacitors and the surge arrester
look like they are in a good condition. I measured them all and found no serious deviations.
Updated: front side
Updated: faulty MOSFET K10A60D or C124
Does anyone know what this part was to replace it or suffered the same problem and could help repairing it?
Ist dies eine gute Frage?
7 Kommentare
Hi Tom A, do not just replace the fuse.
Most prob there are serious fault on the primary section of the PSU.
possible to share the front pics of it?
check on the bridge rectifier if it has been blown...... and couple of primary side IC, check if it is being shorted out.
cleanup those burnt smd components and restore them up.
von Augustine
tengo un problema con un equipo igual, se quemo la salida y no se ve el numero.
Agradezco su respuesta.
I have a problem with a similar team, the output burned and the number is not seen. Thank you for your answer.
von Raul Reyes
@Raul Reyes ... Esta es una publicación vieja. es posible que desee crear el suyo propio para obtener mejores resultados. Veamos algunas fotos de tus tableros de potencia.
von jostewcrew
I didn't manage to fix it. After weeks trying I sent it to a Marshall repair shop. They changed the PCU, I payd... End of the story.
von Tom A.
Hello, I have the same problem, to help solve the problem, would you have taken a picture of the card in good condition? to finally know the inductance of LL10 .... Thank you
von Longau Pierre
2 weitere Kommentare anzeigen