"Mark Zacharias" wrote in message
...
"Gareth Magennis" wrote in message
...


"Mark Zacharias" wrote in message
...

"Arfa Daily" wrote in message
...


"Gareth Magennis" wrote in message
...
I'm sick of this ****.


Someone brings me a Pioneer mixer or CDJ to repair, and I need to order
spares.

Get this. A KNOB costs £15.
http://www.ebay.co.uk/itm/Pioneer-DJ...em258036 6f8f

How do they get away with this?



I repair quite a few of the CDJ and DJM units, and they are expensive
to buy in the first place, but everyone that owns them loves them to
bits. And because of this, I've found that they don't bat an eyelid at
the cost of parts or the total repair costs. And the thing is that as
you say yourself, it might just be a knob, but it's a unique knob that
has that right 'feel' to it, so I suppose in some ways you can expect it
to be expensive. The people that own these things are generally
professional DJs, so these units are their tools that allow them, in
some cases, to earn large amounts of money, so they expect to pay a
premium to get them repaired.

Arfa


Geoff.

I don't work on many CD-J units, but I've got a CD-J800mkII in right now
and
having trouble nailing down the problem.

Basically it acts like the clamper magnet is much too strong. When the
mech
goes to lift up the disc off the clamper, it encounters too much
resistance
and the white nylon rack gear at the top slips and ratchets. The disc
cannot
eject until I help it by lifting up the clamper with my finger. Requires
quite a bit of extra "help".

Sometimes the laser assy also acts gummed up at the inside circumference
and
cannot contact the limit switch. It's not the stepper motor, and I cannot
confirm bad lube.

Any ideas?

The Pioneer guy I talked to was clueless.

Mark Z.




Beer? I've seen quite a bit of that in CDJ's.



Gareth.


Well, I did forget to mention that there was a small quantity of sticky
stuff in there, but I have carefully cleaned the affected parts and at
least so far as the clamper issue is concerned, I do not think this is my
issue.
The pickup sometimes sticking near the inner circumference on the other
hand...

Mark Z.


As Gareth says, I've generally found the mechs to be quite reliable,
mechanically. Beer / Coke ingression is very common for all sorts of nasty
little problems on them. If there are signs of something like that having
gone in there, it would still be the place that I think I would be looking
for the problem. The motors are very light duty things, relying for their
'power' on the gearing behind them. If anything offers any resistance to
that gearing, then there is just not enough power in the motor to overcome
it.

Do you have the manual for it ? The exploded view of the deck shows all the
lube points and the type of lube that should be used.

When you get it all going, check all of the tactile switches. The ones most
used like "Play" and "Cue", have a habit of collapsing and losing their
'click'. They are easily replaced on most models. Also, check that the
springs on the Jog Wheel have not collapsed. The turntable should have a
distinct - but light - movement of probably 3/4 mm. When the springs that
keep it raised collapse, you only have to blow on it to make it do its
thing, and that is then close to the time where it can 'make' the ring of
foil switches under it, almost under its own weight. The jog wheel assembly
is easily removed and serviced. The springs can either be replaced, or
gently re-stretched until they just support the weight of the turntable
again.

Arfa