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Old 29th May 2016, 03:37 PM   #1
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Default Pioneer CDJ Buttons behaving randomly Problems. Dim Play light

Hi Guys, having problems with a few Pioneer CDJ's. Similar sort of problems wondered if any body knew what could be going on.

CDJ 800 - Pressing the buttons on tempo slider board seem to be confused. for example: You could press the master temp button and the tempo range would change. and visa versa. also switching vinyl mode on and off can change the temp range or turn master tempo on or off. The same happens with the eject button. I've temporarily swapped the board out with another and it resolves the problem. Just wondering where to look on the board to fix the issue? It's got to be a common issue? This doesn't happen every single time, maybe 3 out of 10 times it does something it shouldn't

CDJ 2000 - Same as above, same buttons, its all on the main control board so harder to narrow the problem down

CDJ 2000 Nexus - Similar to above with buttons controlling other functions. I have this one with buttons from the eject and memory, delete all interfering with each other. Pressing eject tries to save a cue point everytime at the same time as ejecting the disc.

CDJ 2000 - Dim green ring play light - common fault reading on the internet just want to know if i can fix it myself rather than buying another cue board.

Any help or light on any of the issues will be much appreciated?
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Old 29th May 2016, 06:49 PM   #2
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JonSnell Electronic's Avatar
Join Date: Dec 2012
Location: The Jurassic Coast, England. GB
Have you checked the power supplies?
Support for Fender, Marshall and all Valve Equipment; Audio Innovations, Audiorama FU29, Quad and Leak.
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Old 31st May 2016, 11:33 AM   #3
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I havent checked the power supplies because I figured on the CDJ 800, swapping the tempo board fixed the issue so the problem lies with that board.

There is a guy on youtube that describes the exact problem but he says cleaning the board fixed it but I have tried that with no joy
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Old 8th June 2016, 12:40 AM   #4
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Andersonix's Avatar
Join Date: Jan 2004
Location: Silicon Valley, California
Could it be old electrolytic caps?
I hear this problem is showing up in 15 year old cars...
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