misterc6
Wasted and wounded, it ain’t what the moon did
One of the bolts is under the centre of the transformer, bottom right in the photo. Looking at the amplifier boards the other two bolts are directly below the centre of each black heat sink at the top of each board, between the two silver power transistors.
WD40 is a good tip and you should only have to drill the bolts out if the heads are badly damaged. If you decide to drill you need a bit which is the same size as the thread of the bolt, from memory the transformer bolt is M6 and the other two are M4. Drill at low speed and the head should detach from the thread of the bolt. Turn the case upside down and there should be sufficient clearance between the remains of the bolts and the sleeve to allow you to slide the sled out. Use a pair of grips to firmly hold the remains of each bolt in order to remove them. It is very, very unlikely that the drilling will damage any of the internal components.
WD40 is a good tip and you should only have to drill the bolts out if the heads are badly damaged. If you decide to drill you need a bit which is the same size as the thread of the bolt, from memory the transformer bolt is M6 and the other two are M4. Drill at low speed and the head should detach from the thread of the bolt. Turn the case upside down and there should be sufficient clearance between the remains of the bolts and the sleeve to allow you to slide the sled out. Use a pair of grips to firmly hold the remains of each bolt in order to remove them. It is very, very unlikely that the drilling will damage any of the internal components.