The pitch slider suddenly wont go bellow 0.00, for

Clean pitch slider

At a guess I would say it needs a new jog wheel pressure sheet. There is one for sale on ebay here.

http://www.ebay.co.uk/itm/PIONEER-JOG-PRESSURE-SENSOR-SHEET-SWITCH-CDJ-1000-MK2-MK3-CDJ-800-MK2-/151135419410?pt=UK_Sound_Vision_Performance_DJ_Parts_Accessories&hash=item23305f7c12

There is a fine adjust on the pitch control circuit board, however if it is staying at Zero at the extremes then it's time for a new pitch control :(

The pitch faders do fail but usually they just become erratic rather than give up completely.
I think the most likley problem is a crack on the pitch circuit board or problems caused but liquid spilt into the pitch fader.

There is no mention of a factory reset in the Mk1 service manual. The firmware can be upgraded - Mk1 & Mk2's need to go to Pioneer / Videotec, Mk'3 can be upgraded from CD.

http://www.pioneer.co.uk/uk/support/software/CDJ-1000%20MK3/index.html

The pitch may just be faulty, look here for a replacement :-
http://stores.ebay.co.uk/methleykev

MK1, Mk2 or Mk3 ??

Sounds like the laser has failed, mk1/2 lasers available here :-
http://cgi.ebay.co.uk/PIONEER-CDJ1000-CDJ-1000-MK1-2-LASER-DECK-ASSY-NEW-/300435540142?cmd=ViewItem&pt=UK_Mixers&hash=item45f35a88ae

Mk3 laser available to order.
[email protected]

Take off the slider from the main board and clean it with IPA solution, blow dry it take care not to scratch the carbon strip inside after that apply a very small speck of petroleum jelly or mechanism grease, used by technicians on the movable mechanical parts and you may get it working again. If you have the patience and the knack of doing it urself go ahead. If not order a new slider ( send the details correctly including the size and ohms rating) and replace it. After all pitch bending should not keep changing if you are a DJ so a new one would be most feasible in your case.

its the internal power supply its failed these are all like this expensive to do get it fixed and out it

All i can say is they are all good models but the mk3 has some more feature's.

Regards.

http://www.audiovisualservices.info/

sounds like a power supply to lcd pcb is down, if you havent had it repaired you can send it to us.

Regards.

http://www.audiovisualservices.info/