OK, this is gonna take a bit of work - because the amps are untrustworthy and probably in need of troubleshooting - or at least proving that they are ok. We HAVE to go about this systematically - sorry - but this is how I would do it on my bench - even if pressed for time. There is a thread somewhere in here where this was done, and if anyone remembers removing outputs and restoring DC balance to the sx-1010 power amps by adding resistors in place of the output transistors, PLEASE chime in. I am limping along on an old laptop - the AK Dell Inspiron N5110 Win 7 laptop from 2012 has a probable hard drive failure that I cannot work on until I can get parts etc after the holidays. This is the Dell Latitude D610 Win XP laptop that lost the hard drive in 2012, which I eventually repaired. Step 1: REMOVE the output transistors, insulate the empty hanging sockets so nothing will short. RECORD EXACTLY WHICH TRANSISTOR CAME FROM WHICH SOCKET!!! Not just the "flavor" pnp/npn, but each individual!! Then try the power again, and see if the bulb goes dim. If it dims, take power supply readings, concentrating upon the major regulated outputs of pin 14 (+56), pin 10 (-56) and pin 8 (+13v) and if they are within 10% of those values, they are ok and we can move on to the amps - DON'T sweat it if the protection relay does NOT click.