This is a new unit that has not been used before.
I powered this unit on using a jumper in the motherboard connector (grn to blk) and it seemed to work OK. I hooked it up to a PC and everything seemed fine for 10-15mins (load meter was showing power draw around 80-100W) and then there was a loud BANG like a firecracker or a gun went off. PC went dead and the supply was removed for inspection.
Initial inspection didn't reveal anything obvious but I did see a small black dot on the plastic insulator sheet underneath the main board. It appears that this mark is directly under one of the pins of the small transformer (details to follow).
Supply shows no signs of life and the fuse seems to test OK. Any idea where to start? Pics to follow.
I powered this unit on using a jumper in the motherboard connector (grn to blk) and it seemed to work OK. I hooked it up to a PC and everything seemed fine for 10-15mins (load meter was showing power draw around 80-100W) and then there was a loud BANG like a firecracker or a gun went off. PC went dead and the supply was removed for inspection.
Initial inspection didn't reveal anything obvious but I did see a small black dot on the plastic insulator sheet underneath the main board. It appears that this mark is directly under one of the pins of the small transformer (details to follow).
Supply shows no signs of life and the fuse seems to test OK. Any idea where to start? Pics to follow.
Comment