My cdj 1000 won't power up keeps blowing fuse inside??

I have a CDJ1000 which I may have fixed finally. The N15 (0.65) fuse on this kept blowing, and I tried replacing it with a slight higher value (0.8 A), but it blows before a couple of days go by. I think the real reason is that there is a plastic tab on the laser transport assembly which is supposed to trip a switch as it gets to the end, but because of wear and tear no longer works. This causes the motor to overshoot and overload and trip the fuse. I seem to have fixed it by adding a piece of heat shrink tubing to this plastic tab and replacing the fuse. Now it seems to be working fine.

There may be a short somewhere inside that's causing it to draw too much power. If many other people are experiencing the same problem, then it may be a design flaw (like the original Xbox 360s).
As I always say, if it's under warranty/exchange, then just go that route by calling the manufacturer (for warranty) or just exchange it at the store you purchased it from.
If you're a gambling man, or find and understand the schematics, you could try stepping up the fuse to a slightly higher value. This isn't something you should seriously consider unless ALL other avenues have failed, as the fuse blows to protect the rest of the circuit from essentially melting down.

The power supply most likely needs replacing. This will require the services of an electronics technician. To truly find out what is causing the excessive pull on power, you'll need several pieces of electronic test gear that is not normally available in the average household. If you want to investigate to see if it is something simple, you'll need to disassemble the unit and look to see if there are any foreign objects that are possibly shorting any of the internal circuits. Beyond that will require test equipment.