Some photo of the blue and brown wire as they are leading from the drive terminal would help. Also photo of the plate amp would help. Are there any fuses on the plate amp board?
Yes this is how the arrangement is in my sub as well, thanks so much for the photo. So when I cut the quick connectors at the amp. end do I join the browns and blues and connect browns to the +ve and blues to the -ve speaker terminals of my external power amp.?
1. Connect brown + brown together
Ok. This looks promising. You can remove entire electronics. You will be left with open holes on that plate. There are four holes for the RCA line level. We can utilize two of these holes for putting speaker binding posts which have a insulated plastic sleeve. The the plastic sleeve just need to fit into the hole. Rather than making two new holes, it is easier to widen the existing holes using a drill bit which has the same diameter as the plastic sleeve. If you look at the below picture you will understand
On the top right of the left horizontal board, there is a glass cartridge fuse. Do you have a multimeter to see if the fuse is not blown? Alternatively, can you take a closeup picture of the fuse?
The fuse is working, I checked with a continuity meter.
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When you check smps, never touch or check Hot area. It has lot of voltage even after plate is not powered on.
Yup. The capacitor has gone bad. Typically this is what mostly happens in SMPS failures. The stressed out electrolytic capacitor become bad leading to SMPS failure. Most likely the VIPer 12a chip is fine because these chips have built-in safety turn off. You will have to remove the glue carefully and remove the capacitor and put a capactor of the same microfarad value and with the same voltage or higher rating. The board will start operating once you replace the capacitor or the capacitor and the chip.
