CDJ2000NEXUS - 5 Points to service

CDJ2000NEXUS - 5 Points to service

The CDJ2000Nexus is a legendary multimedia player form Pioneer DJ. With features like waveforms, slip mode and quantize there is no wonder why the CDJ2000Nexus became industry standard, and was for many years all around the globe! Even though it has now been replaced by both CDJ2000NXS2 and CDJ3000 the CDJ2000Nexus is still a powerful unit!

The CDJ2000Nexus is one of the most commonly used DJ players in Denmark where our store is located, and we therefore have a lot of experience repairing these players. So if you have questions beyond these 5 points of service – let us know!


On most of the Pioneer CDJ’s, the link function is a vital function, however the lan jack tend to be a week spot on the construction of the player. The lan jack on the CDJ2000Nexus is unfortunately no exception. The lan input is mounted directly on the main board itself, which makes the issue even more serious. In most cases issues and bad connections on the lan jack is caused by too crowded space in a flight case. The cables are stretched and bend, causing to much stress on the input lan jack. The result is most often a bad or loose connection between CDJ’s, which then can result in emergency loops, and a lost link function while you are playing.
   To test if you have a bad connection, simply connect two CDJ’s with each other using a lan cable, and then slow and gently wiggle the link cable on the players one at a time. If the connection is lost even for a second, you will have to repair the unit.  
   Since the mainboard is so expensive, the repair progress is to replace the DKN1650 lan jack / lan RJ by soldering. This repair takes a steady hand and if you are not experienced in soldering, this is not the place to start. If the lan jack is torn off the printed circuit board you will have to replace the DWX4103 Main control assy in order to repair the link function.


The play and cue buttons will always be a vulnerable point on the CDJ’s, DDJ’s and XDJ’s. The two buttons are both used a lot, and they often take a lot of beating. Wear and tear on the buttons often results in bad connections or periodic problems with the two buttons. To fix the issue, replace the tactile switches with the DSG1117 switch, or replace the entire DWX3339 play and cue circuit board. Replacing the board is quick and easy, and you might as well keep a DWX3339 PCB in stock – just in case.
The plastic keyboard on the CDJ2000Nexus is only in vary rear cases damaged or broken. For the record the plastic replacement part for play and cue on the CDJ2000Nexus is called DXB2126.


Watch our video on how to repair play cue buttons.

Hot cues

The hot cues on the CDJ2000Nexus works almost exactly like on the previous model, the CDJ2000. The 3 hot cues consist of a tactile switch with part number DSG1079 and a plastic keyboard / button set with part number DAC2469. Both the switch and the plastic parts tend to break over time. The tactile switch is a simple 2 pin through hole component like most other buttons on Pioneer’s products. Easily replaced by soldering.
all buttons can be tested in service mode – this is a quick way to get an overview of issues o buttons, and potentiometers on the players. Make sure to check the rec/call button, this usually causes trouble.
   If the plastic buttons seams loose and rattles from side to side, the plastic is broken, and you will have to replace it to make sure you are not damaging the tactile switch.

Browse encoder

When browsing for tracks you are using the browse encoder located on the right side of the screen on the CDJ2000Nexus. Over time the crispy clicking sound from the encoder when it is turned seems to fade. The browse encoder is getting looser and looser until the feel ling of the clicks/steps are totally gone. This is when the browsing indicator on the screen is starting to jump and become unreliable. In a last-minute browsing situation this is really annoying and a real stress factor!
Luckily the solution to the problem is clear, you will have to replace the browse encoder itself. The spare part you need is – just as on many other CDJ’s like the CDJ2000, and CDJ2000NXS2 – called DSX1080 encoder switch. To replace it you will have to take the whole screen section apart. This takes patience, however it is not that difficult. Removing the DSX1080 takes a quite hot soldering iron. Usually, I personally solder this part at around 410 degrees C.


Jog gear

On most of Pioneer’s flagship players, you can adjust how much resistance you wish on the jog platter. The jog adjustment mechanism on the CDJ2000Nexus works like the previous models like the CDJ2000 and CDJ1000MK3. The “gear box” is mounted on the DNK6138 jog holder/housing. The jog mechanism is based on several plastic rollers, gears, and springs. The many minor plastic parts may cause different problems.
   If the jog wheel is suddenly jammed, stuck or if there just seams to me an inappropriate amount of friction when the wheel is turned, then a roller may be broken. The DXB2178 jog pinch rollers are small however vital for the mechanism. The jog wheel works a bit like a ball bearing, and the DXB2178 acts as the balls. The rollers might break due to wear and tear, leaving small plastic pieces in the rest of the mechanism. This is of cause unwanted although it is easy to fix. Once the jog section is opened up, it will be very easy to see if a broken pinch roller is causing the problem. If that is the case, remove the broken plastic parts, and replace the DXB2178 roller simply by snapping it in place in the jog holder. You might want to lubricate all of the jog pinch rollers using the GYA1001 original Pioneer grease. Doing this will reduce the noise coming from the jog wheel. One can of GYA1001 will last for a lifetime!

Follow this link and find al our spare parts for the CDJ2000Nexus.

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