Pro-Ject Audio Systems Juke Box User Manual

Page 4

Cartridge downforce adjustment

The counterweight (6) supplied is suitable for cartridges weighing between 3,5 - 5,5g. Alternative
counterweights for cartridges weighing between 6 - 9g or 1,5 - 3g are available as accessory parts. Adjust the
downforce prior to installing the anti-skating weight.
Pushing carefully, turn the counterweight (6) onto the rear end of the tonearm tube (9), so that the downforce
scale (6a) shows towards the front of the player. Lower the armlift and position the cartridge in the space

between arm rest and platter. Carefully rotate the counterweight (6) until the armtube balances out. The arm
should return to the balanced position if it is moved up or down. This adjustment must be done carefully. Do
not forget to remove the cartridge protection cap if fitted.
Once the arm is correctly balanced return it to the rest. Hold the counterweight (6) without moving it, and gently
revolve the downforce scale ring (6a) until the zero is in line with the anti-skating prong (15). Check whether the

arm still balances out.
Rotate the counterweight counter clockwise (seen from the front) to adjust the downforce according to the
cartridge manufacturer's recommendations. One mark on the scale represents 1 mN (= 0,1g / 0,1 Pond) of
downforce.

The recommended downforce for the factory fitted cartridge is 17,5mN.

Anti-skating force adjustment

Slip the loop of the anti-skating weight's thread over the second groove of the stub to set the correct anti-
skating force for the factory-fitted cartridge. Feed the thread through the loop of the wire support (17).

Connectors

IN MP3

IN 1

IN 2

21V=

16V

Take care to connect the left and right channels correctly. The right channel is usually marked red,
the left channel black or white.
The red speaker terminals carry the positive signal (+), the black speaker terminals the negative

signal (–). Make sure the polarity of the connection is correct at each end of the cables.

Inputs

Line level sources such as CD player, tuner, TV or MP3 player can be connected to the input sockets marked

IN MP3, IN 1 and IN 2.

Connection to the speakers

The output terminals accept loudspeaker cables terminated with 4mm ∅ Banana plugs, spades connectors
or naked wire.

Only connect one loudspeaker with an impedance not less than 4 Ohm per channel.

Mains power connection

The turntable is supplied with a 16V and a 21V power supply suitable for your country's mains supply. Check
the label before connecting to ensure compliance with the mains rating in your house.
Connect the low voltage plugs from the 16V and the 21V power supply to the socket (13) and (13a) on the
rear of the record player before

connecting to the mains.

Fitting the lid

Fit the lid (dust cover 10) carefully over the hinge prongs and adjust the screws (12) until the lid stays open
where you want it to without being too stiff to open or close.