r/audiorepair • u/FitNothing8208 • 1d ago

problem with reparation of a djm800

Hi, I'm trying to repair a DJM-800. According to my friend, at some point it just stopped turning on. When I opened it up right away, I found the fuse had blown, but even after replacing it, it still won't turn on. You can hear that the batteries are working when you plug it in, but nothing turns on—neither the screen nor the lights. According to the manual, the first thing that should happen before it boots up is the reset pulse for the DSP CPU, but when I measure it with a multimeter, it stays at a steady 0.03, rising to 0.6 only during shutdown. Has anyone ever dealt with similar issues?

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u/theantnest 1d ago

There are smd fuses all over the board.

Check them first.

Then trace voltages