Numark no power on numark cdn22 mk4 my numark mixer power isn't working properly. I plug the adapter into the mixer, the power isn't turned on. when I bend the power source thats connected to the mixer, the power comes on. What can I do about it?

If your Numark 5000FX mixer is not registering your Technics turntable on any of the channels, there are a few things you can try:

1. Check your cables: Make sure that your RCA cables are plugged in correctly and securely. If you are using a phono preamp, make sure that it is powered on and connected properly.
2. Check your switch settings: Make sure that the switches on the back of the mixer are set correctly for the type of input you are using (line or phono).
3. Check your levels: Make sure that the input levels are turned up and that the fader for the channel you are using is not muted or turned all the way down.
4. Check your ground wire: If you are using a turntable, make sure that the ground wire is connected properly to the mixer.

If none of these steps work, there may be an issue with either the turntable or the mixer. Try testing the turntable on a different mixer or testing a different turntable on the Numark mixer to determine which component is causing the issue. If the mixer is the issue, it may need to be repaired or replaced.

http://www.fixya.com/support/t16273368-numark_5000fx_power

What is plugged into your Numark mixer when this happens? Try disconnecting ALL audio inputs to your mixer, turn mixer volumes to zero and see if the hum is still present. Adjust the volume and check if the hum you mentioned returns. If it is still heard, try new cables between the mixer and amp...if not then start reconnecting inputs until the hum is heard again. It's a process of elimination but not that difficult to find the source of your problem.

Do you mean "NUMARK" CDN22?

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Numark-CDN22-CD-Players-manual/id/530ci862/t/2/

Check for contamination on the disks that won't load. Also if you have things like cigarette smoke or "fog" machine that can cause the problem. The precision of the head of the CD players is amazing as the tracks are millionths of an inch apart and it doesn''t take much to cause a problem. If trying to load again the disk finally works, then it may not be registering on the hub quite right. Care in centering MAY help.

1. Check for internal fuse.
2. Check the power transformer.
3. Check the rest of the power supply.

Try the following sites

http://www.powerstream.com/power2.html

http://www.platinum-records.com/Numark-21V-750MA-AC-Adapter-Power-Supply-prod7509.htm

Or even a cheap replacement laptop power supply as these usually start at 1000 mA which will give you current to spare and have a longer lifetime. most of these cover from 15V to 24V and are either auto switching or manual select for the voltage. Plus you can pick these up from most electronic / big box / supermarket shelves

sounds like your blew the first power stage, probally a fried power diode. is there a fuse you can replace? if not it will most probally need componet level troubleshooting/repair.

good luck!
jesse

Any Luck with Mixer, My has suddenly stop working. I've put the adapter on and its not coming on? May be the adapter has been fused, and still waiting for a new one? If not a new Mixer:-(...

Bring it back to the shop where you purchased it from and it may be under warranty, if not then the problems yours. Try replacing the fuse in the plug. If bought online, then bring to a repair shop if all else fails, email them