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1 2 3 4 2. BASIC ITEMS FOR SERVI CING A 2.1 CHECK POINTS AFTER SERVICING Items to be checked after servicing To keep the product quality after servicing, confirm recommended check points shown below. No. Procedure 1 Check the audio input signal. 2 Check operations of the volume. Check points The sound should be output normally when inputting the signal to the LINE IN 1, LINE IN 2 input terminals (XLR, TRS) and AUX IN terminal. The sound volume should change by rotating the VOLUME knob. 3 Check operations of each SOUND MODE selector switch. B 4 Check the Power indicator. The sound quality from Speaker output changes by switching the SOUND MODE selector switch. The POWER indicator of the front part and the POWER indicator of the operation panel should be light on in white when turning on the power. The POWER indicator is off when the power is turned off. 5 Check the Wireless indicator. 6 Check the Bluetooth button/indicator. 7 Check the Bluetooth signal. C 8 Check the SonicLink button indicator. 9 Check the SonicLink pairing and connection. 10 Check the SonicLink signal. 11 Check the MIC. D During Bluetooth pairing, the WIRELESS indicator of the front part will flash blue, and after Bluetooth connection, it will turn blue. During SonikLink pairing, the WIRELESS indicator of the front part will blink green, and after SonicLink is connected, it will turn green. Press the Bluetooth button for more than 3 seconds and when the Bluetooth indicator flashes blue twice, perform the pairing operation on the Bluetooth device and the Bluetooth indicator will change from flashing to light on. When connected to a Bluetooth device, play music on the Bluetooth device and output audio normally. If you press the pairing button for more than 3 seconds while the SonicLink indicator is off or constantly light on, the SonicLink indicator will flash green twice. If you press the SonicLink button for more than 3 seconds and the indicator flashes green twice, perform the pairing operation on the transmitter and the indicator changes from flashing to light on. When connected to the transmitter, play music from the device connected to the transmitter and output audio normally. When a microphone is connected to the MIC input terminal (TRS), audio is output correctly. The MIC EQ knob, MIC ECHO knob, and MIC LEVEL knob should function normally when operated. Caution when confirming the operation ! Power management function When you turn on the [POWER MANAGMENT] switch on the rear terminal section, the auto power-off function turns on, and if there is no input signal for a certain period of time (approximately 20 minutes), the power will turn off automatically. When the unit enters the auto power off state, both the POWER indicator on the front of the unit and the POWER button/indicator on the rear operation panel light off. Even if an audio signal is input to the input terminal in auto power off state, the power will not turn on. To turn on the power, press the POWER button on the rear operation panel for more than 1 second. E See the table below for the items to be checked regarding audio. Item to be checked regarding audio Distortion Volume too high Noise Volume fluctuating Volume too low Sound interrupted F 4 WAVE-EIGHT 1 2 3 4
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5 6 7 3 . DIAGNOSIS 3 .1 TROUBLESHOOTING g Speaker Connect the Power cord and press and hold the Power button/indicator for about 1 second to turn on the power. Does the Power button/indicator No The unit may be malfunctioning. light up white? Refer repair to a qualified technician. Yes When the power on and signals No Is the VOLUME knob set to are input to LINE IN 1 and LINE minimum? IN 2 inputs, does the speaker output normal sound? Yes Yes Adjust the VOLUME knob. No The unit may be malfunctioning. Refer repair to a qualified technician. When inputting a signal to the AUX IN terminal, does the speaker output normal sound? Yes No Is the VOLUME knob set to minimum? Yes Adjust the VOLUME knob. No The unit may be malfunctioning. Refer repair to a qualified technician. . When connect a microphone to No Are the VOLUME knob and MIC No The unit may be malfunctioning. the MIC input terminal, does the LEVEL knob set to minimum? Refer repair to a qualified speaker output normal sound? technician. Yes Yes Adjust the VOLUME knob and MIC LEVEL knob. Do the MIC EQ knobs, MIC ECHO knob, and MIC LEVEL knob work properly? Yes No The unit may be malfunctioning. Refer repair to a qualified technician. Does the VOLUME knob work properly? Yes No The unit may be malfunctioning. Refer repair to a qualified technician. Does the Battery indicator light up? Yes No Do all Battery indicators blink? Yes No The unit may be malfunctioning. Refer repair to a qualified technician. Is the product ambient temperature over 35 ° C? Yes No The unit may be malfunctioning. Refer repair to a qualified technician. Place the product in an environment with a temperature below 35 ° C for at least 1 hour and reconfirm. If I press and hold the SonicLink No The unit may be malfunctioning. button/indicator for about 3 Refer repair to a qualified seconds, does the SonicLink technician. button/indicator blink twice? Yes WAVE-EIGHT 5 6 7 8 A B C D E F 5 8
