Hi, My Pioneer CDX P630S has started to play up. First it was showing "ERROR 60" and wouldn't play my CD's and now it's showing "ERROR 70" and will not eject the cartridge.

SOURCE: Pioneer KEH-P6600 diplays "error-11"

use your user guide to read the problem related to error 11 .. most probably your wire connecting your changer witht he head uint is either cut or not functionall ... hope that answers the question

SOURCE: CDX-P610 old system but was

soory cant help out my self i have the cdx-fm687 and never had a promblem. but may be some one else can figuer it out for u and if u do let me no what it was

SOURCE: Have a Blaupunkt AM FM

We eventually tried loading another CD to fill the one vacant spot we knew was in the changer even though we'd tried that before without success. This time it seems that we fluked it just as it was trying to eject CD 1 again and - somehow - the CD we were tryng to insert must have lifted the rim of the one that was stuck and it suddenly ejected. The remaining 4 CD's that were inside the changer but not even recognised, then started re-loading so it appears that they were all jammed up together. Once they'd reloaded we were able to eject them all successfully then reload.
We're not sure but think that it may have happened when the eject button was originally pressed once to eject CD 6 then, in error, held down for a 'eject all' procedure and the changer has become confused with both instructions.

SOURCE: I have a pioneer

go through this link to DISASSEMBLY >>http://www.tradebit.com/filedetail.php/824760-Documents-eBooks

the unit and open the top cover and take the struck cd out.

SOURCE: I have a 6 disc

This sometimes happens when you put two disc's in one tray. If it's not locked in the loaded position then you can take a thin piece of plastic (as thin as a credit card but longer, five inches or so) or the equivilant (like that impossible to open without cutting yourself plastic packaging) and slide it underneath the 6 disc cartridge. You need to work it in and out, eventually you will hit the release mechanisim.
If a disc is loaded then it won't work and you need to dissasemble the changer and manually retract the disc.