Dual 701 pops fuse.

Remembering back, the other thing I did was jumper in a laptop power supply bypassing the onboard power supply. It functioned properly with the laptop supply thereby narrowing down the problem. There are some other sites that do deep dives on this topic. Karma maybe? Or diy? It’s been a while. This Dual is still in rotation. A Dual was my first table so.....

Purchased a dual from the 5 and dime with the same blown fuse issue. However, this dual would not spin after fuse replacement. The strobe light illuminated. Dissected it and found 2 caps on the power/speed supply. Replaced the small one first. Nada. Replaced the big one second. Bingo. Regarding yours, maybe remove the belt and see how long the motor will spin before blowing the fuse? If the fuses does not blow, maybe a bearing issue?

The fuse rating may also need to be double checked. Thinking back, some of the manuals had the fuse rating for the USA and Europe as the same. In other words, incorrect. Read the specs carefully. Again, those other sites lay most of this information out there.