So... one amp is done, it went very smoothly however the other which happened to be the 1st one we did, not so much
We got it apart no problem and while putting the faceplate back on we were completely focused on getting the screw holes lined up without scratching the faceplate and we took our eyes off the ribbon cable from the LED assembly and it went in between the faceplate and chassis and folded over on itself causing a crease across the cable. We caught it before we tightened down the screws but still to late to stop a crease from happening. When the amp was powered up there were 2 problems. The LED isn't coming on but more scary it's not powering up properly at all. It makes a very quiet sound not the distinct and rather loud set of sounds normally associated with the soft start circuitry kicking in on Bryston amps. The thing I'm mad at myself about is I did not power cycle the amp after I received it so I knew it worked properly before I did the LED swap so it's quite possible it was damaged during shipping and would have done the same thing I'm experiencing now. No way of knowing that now though.
So in communicating with Mike the crease in the ribbon cable may not have broken the cable so it may still be fine and just wasn't secured properly so this would be an easy check plus I now have 2 additional LED assembles to use (the original one from this and the other amp) so they can be used to test if we broke the new assembly, if they don't work then something else is going on, if they do, the new blue assembly is damaged.
As for the power issue it's also possible we didn't properly secure the 3 ribbon cables and/or didn't get the pins lined up properly when re-attaching the heat sinks. We did notice it was easy to miss aligning the pins, on a few attempts the top pins ended up going under their associated female counterparts on the main chassis thus missing the target entirely.
So again easy to check right, well...no
In taking off the cover to perform the visual check one screw head completely stripped and it wasn't even in very tight from when we had the cover off the 1st attempt, we were so careful not to overtighten. So now we can't get the cover off and can't get the screw to turn enough to expose the edge of the head which would allow us to simply use some plyers to turn the screw.
Very frustrating and disappointing to say the least.
We can try drilling the screw, aside from that the amp has to be sent off to Bryston