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1 2 3 4 3. BASIC ITEMS FOR SERVICE 3.1 CHECK POINTS A Items to be checked To maintain product quality, confirm the recommended check points show below. No. Procedure Check points 1 Check the analog audio input (each channel, MIC, EXTERNAL Audio and operations must be normal. RETURN, MASTER INSERT RETURN). (Make the analog connections with CDJ player, analog player and MIC.) 2 Check the analog audio output (MASTER, REC OUT, BOOTH, Audio and operations must be normal. EXTERNAL SEND, MASTER INSERT SEND). (Make the analog connections with CDJ player.) 3 Check the digital audio input. Audio for each channel and operations must be normal. (Make the digital connections with CDJ player.) 4 Check the headphones output. There must be no errors, such as noise, in the audio output. B 5 (C1h/4e”cskteprlaeyobpahcokn, euspinluggtshaenCdh3a.n5nmelmrostaterryefoadmeirnifupnlucgtiso)n. There must be no errors in audio output and operations of each (Select the fader function then check operations of each channel channel. with audio signals.) 6 Check the connection of each interface. PC (USB-C) terminal The device must be properly recognized by the PC. 7 Check the buttons and controls. Make sure that all buttons and controls on the Main unit function properly. See the table below for the items to be checked regarding audio. Item to be checked regarding audio Distortion C Noise Volume too high Volume fluctuating Volume too low Sound interrupted D E F 4 euphonia 1 2 3 4
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5 6 7 8 4 . DIAGNOSIS 4 .1 CONNECTION CHECK WITH EACH INTERFACE g USB C terminal A You can check on the PC that the USB communication between the PCs connected to the USB C port of unit is normal. + The driver software must be installed beforehand. ! For checking, use the Screen of the unit. If the driver is not recognized after connecting to the PC, the following caution message will be displayed. If the driver is recognized, no warning will be displayed. B ! Use Device Manager for checking. If the PC and unit are properly connected, the components of unit are added in Device Manager (under Hardware) as devices. If all components are properly displayed, the PC and unit are communicating via the USB C port. In a case of Windows 10: Input with "Device Manager" in the search box of the task bar. Devices to be added: ! Universal Serial Bus controllers USB Composite Device ! Under “Sound, video and game controllers” C euphonia euphonia ! Human Interface Device HID-compliant vender-defined device USB Input Device A communication check may be easily performed if connection is made with Device Manager displayed on the PC screen. D E F euphonia 5 5 6 7 8
