Pioneer djm 800 will only play through 2 channels on mono??

The fader pot will need to be replaced. There is no way to glue or repair the tab.

Have you plugged the headphones into the L/mono jack or the R jack?? also, is it a headphone out or a monitor out??

That sounds like you could have some dust built-up on your sliders. Get yourself some dust repellant spray or silicone spray normally found at you nearest computer store. That will definately sort your problem

no and you can use channel fader of each channel to control the channel without cross fading.

To keep your levels down keep the TRIM don which is the gray knob. Also keep the hi, mid, and low knobs at the medium level. The control cables are for using the fader start function.

Chances are the actual fader is faulty.
Can you solder? - look here :-
http://cgi.ebay.co.uk/PIONEER-REPLACEMENT-FADER-DJM500-DJM600-DJM-800-300-etc-/260401328795?cmd=ViewItem&pt=UK_Mixers&hash=item3ca120f29b

If not look here :-
http://cgi.ebay.co.uk/PIONEER-DJM-600-DJM-600-CHANNEL-3-FADER-SLIDER-DWG1523-/260494741288?cmd=ViewItem&pt=UK_Mixers&hash=item3ca6b24f28

are you sure you have your tt's plugged into the phono line with the master booth knob turned up? Check the mixer too cuz the techs should be square.

could be a few things , what have you tried to trouble shoot the problem ?
My steps would be ;
check all leads (even if you KNOW u pluged them in)
check the gain is set corectly .
check the line phono slectors are set to what ever you have you leads pluged into on the back of the mixer ( there is 4 red and white RCA plugs , 2 for phono,2 for line CDJs shold be using line )
if you are using digital cables to conect your CDJs , on the back on the mixer there is a small switch marked "CD or digital" make sure that is sleceted "digital " . if ur not using digital cables make sure it is on "CD" .
the info iv put here is based on the DJM-800 so your mixer my not have some of these featers as iv never used a 400 . hope this helps dued . check out www.djtutor.com for more tricks and tips . Pratices'N'enjoy !

Get yourself a manual. It will help you. You can DOWNLOAD A FREE COPY of the PIONEER DJM600 INSTRUCTION MANUAL from HERE.

Now, you have to use the CUE button function on each channel to select what you want to hear when you cue things in the headphones. Last, you control the volume of the master cue in the headphones using the CUE volume of the headphone CUE section.

- OPTiC
DJ Equipment Repair & Service
A DJ Pro Audio Co.

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