Sony TA-4650 v-fet popping speakers

[roerdomp]

To Mjona,


Could you explain where to put what resistor ?? Don't get your explanation of this

 

[roerdomp]

Thanks Naresh,

you mean a simple 1/4 watt resistor across the main caps ?? Yes I tried the caps in series with the speakers. No result. I have not found the right MOV yet. Must have them lying around somwhere ;-)
I also tried a second new power switch, next tot orginal one. No result.

 

[roerdomp]

I changed the ranking 54 v-fets for other v-fets ranking 57. No popping at all anymore. Damaged v-fet ???