User Guide

Power Supply

The power supply provides the two power rails required for the successful opera-

tion of the XL88 matrix mixer.

PLEASE NOTE THAT THE POWER SUPPLY CONTAINS CIRCUITRY

WHICH GENERATES LETHAL VOLTAGES. ALL SERVICING OF

THESE UNITS MUST BE REFERRED ONLY TO AUTHORISED SERV-

ICE AGENTS OF KLARK TEKNIK plc. ON NO ACCOUNT MUST SERV-

ICE WORK BE ATTEMPTED BY ANYONE ELSE. IF IT IS, THE WAR-

RANTY WHICH COVERS THE EQUIPMENT BECOMES INVALID, AND

KLARK TEKNIK plc ACCEPT NO LIABILITY FOR CONSEQUENT

DAMAGE TO THE CONSOLE OR ANCILLARY EQUIPMENT.

Voltage Changeover.

It is most important that power is not applied to the unit when changeover pro-

cedures are incomplete, and that the power is disconnected by unplugging the

mains lead before work is commenced.

1. Change the fuse.

The fuse holder is located on the back of the unit above the mains input plug. The

correct fuse ratings are as follows:-

220/240 volt operation: 1A.(T)

100/110 volt operation: 1A.(T)

The fuse is 20mm, HBC type.

2. 120/240 Changeover.

The voltage change over switch is located at the rear of the chassis and its setting

is clearly marked. The voltage label plate must be unscrewed to allow the setting

to be changed. Ensure it is replaced after adjustment.

3. 110/220 Changeover

This is carried out as above for the 120/240 changeover. It will require that the

appropriate mains transformer has been fitted. This is ascertainable by the fact that

the voltage selector cover plate is printed 110 & 220. If this is not the case, please

contact your nearest Klark-Teknik representative to arrange for the transformer to

be changed.