AC-201 EQUALIZER JACK INSTALLATION

Installing an equalizer jack in your amplifier could reduce the resale value of your unit. Hilton Audio Products will not accept for trade-in a unit that has been so modified. You must be familiar with proper soldering technique and working with shielded cable.

REMOVING THE AMPLIFIER FROM THE CASE

Remove the cover from the unit, lift out the turntable platter and set it aside. Turn the unit upside down onto a pillow, foam or other material. Be sure it is thick enough to support the amplifier and protect the tone arm. Remove the four black screws, one near each spring foot. AT THIS POINT THE CHASSIS IS FREE FROM THE CASE AND EXTREME CARE SHOULD BE USED TO PREVENT DROPPING EITHER THE CASE OR CHASSIS. Holding the chassis and the case together, carefully turn the entire unit over to its upright position. The chassis can now be lifted out of its case, lifting the front first so as to clear the jacks on the rear panel.

INSTALLING EQUALIZER JACK

A 3/8" jack mounting hole must be drilled in the chassis between the phono treble control and mic 1 tone control. Carefully mark and drill the hole from the front. It must be in line with the center of the controls and in the black area of the label. Mount the jack with the hardware provided.

Turn the set upside down with the controls toward you. Locate the three shielded cables that are harnessed and go from the left side of the control panel to the main amplifier board. Two wires of the three are together. The third single one is the one we will work with. It connects to the P2 MUSIC control and runs along the front of the chassis with the other wires. Allowing some slack on both ends, cut the wire where it would cross the new jack.

Refer to the diagram below. Place a small jumper wire from (X) to ring of jack. Both shields will be connected to the ground lug (see diagram). The center wire of the shielded cable going to the MUSIC control connects to the ring, and the one going to the main board connects to the tip.

EQUALIZER JACK

(bottom view)