I'm fixing a dead A1098 power brick and have run into an odd problem with some material that may or may not be heatsink compound. Is anyone familiar with this material?
I've got a dead power adapter that appears to have a trivial fault. The fuse is blown. But when I replace the fuse, everything is fine. Fuses do get tired sometimes. Now, I'm putting all the heatsinks back together so I can do a full load test. But there's dark grey silicone to glue things together, and there's some white material that has a consistency half-way between silicone and hardened heat-sink compound. It's usually used in a 'glue' application, but there are two or three places where it might be acting as heat-sink compound. The use of two different types has me confused. Is it just another glue or does it also act as heat-sink compound?
I've attached a picture showing what I'm talking about. You can clearly see both the white and grey material. A heatsink mounts over the board and part of the heatsink is glued to the yellow transformer with the white material. There's also another heatsink that goes over the first one. The white material was used between them.
Is anyone familiar with this stuff? Is it just glue or is it also heatsink compound?
Ed