[. . . ] Before operating, ensure that the voltage and frequency of power supply match the power requirements of the unit. It's important to ground the yellow/green conductor to earth in order to avoid electric EC Declaration of Conformity We declare that our products (lighting equipments) comply with the following specification and bears CE mark in accordance with the provision of the Electromagnetic Compatibility (EMC) Directive 89/336/EEC. EN55014-2: 1997 A1:2001, EN61000-4-2: 1995; EN61000-4-3:2002; EN61000-4-4: 1995; EN61000-4-5: 1995, EN61000-4-6:1996, EN61000-4-11: 1994. [. . . ] The stepper motor might be damaged or the cable connected to the PCB is broken. Check and if necessary replace the lamp on the head. - 5. 5 DMX512 Connection The DMX512 is widely used in intelligent lighting control, with a maximum of 512 channels. 3. How To Install The Unit 3. 1 Lamp In case of replacement of the lamp or maintenance, do not open the fixture within 15 minutes until the unit cools down after switching off. Always switch off the main supply and never handle the lamp or luminaries when is hot. If this happens, clean the lamp with denatured alcohol and wipe it with a lint free cloth before installation. If you use a controller with 5 pins DMX output, you need to use a 5 to 3 pin adapter-cable. Solder a 120 ohm 1/4W resistor between pin 2(DMX-) and pin 3(DMX+) into a 3-pin XLR-plug and plug it in the DMX-output of the last unit. Connect the unit together in a "daisy chain" by XLR plug from the output of the unit to the input of the next unit. Inadequate or damaged cables, soldered joints or corroded connectors can easily distort the signal and shut down the system. If one fixture in the chain is not working all the fixtures after that point will continue to work normally because the DMX signal will always pass through each fixture. Each lighting unit needs to have an address set to receive the data sent by the controller. The address number is between 0-511 (usually 0 & 1 are equal to 1). The end of the DMX512 system should be terminated to reduce signal errors. 3 pin XLR: Pin 1: GND, Pin 2: Negative signal (-), Pin 3: Positive signal (+) 5 pin XLR: Pin 1: GND, Pin 2: Negative signal (-), Pin 3: Positive signal (+) 5D AK-250 AK-150 3. 2 How To Install The Unit On The Floor 1. [. . . ] Once the address has been selected, press the ENTER button to setup the DMX address. To go back to the functions without any change press the MENU button again. Focus Adjust Press the MENU button up to when the is blinking on the display. Pressing ENTER button, the unit will focus on different color each time you press ENTER button. [. . . ]