Hi I have a KICKER ZX1000.1 on the bench,
The amp was cycling in protect mode, the red led would illuminate every second.
I found one of the output transistors had zero resistance on all legs so I pulled it and tested it off the board and same result.
The amp now powers up without going into protection.
The transistor is an IRFP264N, there are 4 in total, should I replace all 4?
Thanks in advance
The amp was cycling in protect mode, the red led would illuminate every second.
I found one of the output transistors had zero resistance on all legs so I pulled it and tested it off the board and same result.
The amp now powers up without going into protection.
The transistor is an IRFP264N, there are 4 in total, should I replace all 4?
Thanks in advance
I would but, at the very least, you need to replace the failed one and the one in parallel with it with FETs from the same batch (same date code).