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1 2 3 4 SAFETY INFORMATION A This service manual is intended to support DIY enthusiasts and AlphaTheta Corporation is not responsible for repair or replacement to your product if damage occurs during a self-repair. Performing repairs on your product must be done solely at your own risk. It is strongly advised that a trained and qualified individual performs the repairs properly and safely. If you are not qualified to perform repairs on this product in a proper and safe manner, you should not attempt to do so and instead refer the repair to a qualified service technician. B CONTENTS SAFETY INFORMATION.2 1. SPECIFICATIONS . 3 2. BASIC ITEMS FOR SERVICE. 4 2 .1 CHECK POINTS AFTER SERVICING. 4 C 3. DIAGNOSIS. 5 3 .1 TROUBLESHOOTING .5 3.2 CONNECTION CHECK OF EACH INTERFACE . 6 3.3 OPERATION CHECK WITH Serato DJ Pro . 7 3.4 ERROR DISPLAY . 8 3.5 FACTORY RESET . 9 4. DISASSEMBLY. 10 5. UPDATING OF THE FIRMWARE . 12 D 6. EXPLODED VIEWS AND PARTS LIST. 1 5 6 .1 PACKING SECTION . 1 5 6 .2 EXTERIOR SECTION. 1 6 E F 2 DDJ-REV5 1 2 3 4

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5 6 1 . SPECIFICATIONS AC adapter Power requirements. AC 100 V – 240 V, 50 Hz/60 Hz Rated current. 1.2 A Rated output . DC 5 V, 3.0 A/DC 9 V, 3.0 A/DC 12 V, 3.0 A/DC 15 V, 3.0 A/DC 20 V, 2.25 A General – Main Unit Power consumption . DC 5 V, 3.0 A Main unit weight. 6.2 kg/13.7 lbs. Max. external dimensions. (W x D x H) 736 x 377.2 x 73.4 mm/29.0 ˝ x 14.9 ˝ x 2.9 ˝ Tolerable operating temperature.+5 °C – +35 °C (+41 °F – +95 °F) Tolerable operating humidity. 5 % – 85 % (no condensation) Audio Section Sampling rate . 48 kHz A / D, D / A converter.24bit Frequency characteristic USB, LINE, AUX (LINE / PORTABLE), MIC 1, MIC 2.20 Hz – 20 kHz S/N ratio (rated output, A-WEIGHTED) USB . 110 dB AUX (LINE) . 95 dB AUX (PORTABLE) . 89 dB MIC 1 . 81 dB MIC 2 . 81 dB Total harmonic distortion (20 Hz – 20 kHzBW) USB . 0.003 % Standard input level/Input impedance AUX (LINE). .-12 dBu/47 k Ω AUX (PORTABLE) .-24 dBu/47 k Ω MIC 1 .-57 dBu/3 k Ω MIC 2 .-57 dBu/3 k Ω Standard output level/Load impedance/Output impedance MASTER 1.+6 dBu/10 k Ω /450 Ω or less MASTER 2.+2 dBu/10 k Ω /820 Ω or less BOOTH.+6 dBu/10 k Ω /900 Ω or less PHONES . +8 dBu/32 Ω /10 Ω or less Rated output level/Load impedance MASTER 1.+24 dBu/10 k Ω MASTER 2.+20 dBu/10 k Ω BOOTH.+24 dBu/10 k Ω Microphone equalizer characteristic HI . -12 dB – +12 dB (10 kHz) LOW .-12 dB – +12 dB (100 Hz) 7 8 Input/Output terminals A MIC input terminal XLR connector & 1/4 ˝ TRS jack .1 set 1/4 ˝ TRS jack .1 set AUX input terminal RCA pin jacks .1 set MASTER 1 output terminal XLR connector.1 set MASTER 2 output terminal RCA pin jacks .1 set BOOTH output terminal 1/4 ˝ TRS jack .1 set PHONES output terminal 1/4 ˝ stereo phone jack .1 set B 3.5 mm stereo mini jack.1 set USB terminals USB Type-C. 2 sets ! Be sure to use the [MASTER 1] output terminals for a balanced output. If they are connected to an unbalanced input (such as RCA) using an XLR to RCA converter cable (or converter adapter), etc., the sound quality may be impacted or noise may occur. For connection with an unbalanced input (such as RCA), use the [MASTER 2] output terminals. ! Be sure to use the [BOOTH] output terminals for a balanced output. If they are connected to an unbalanced input (such as an RCA or TS terminal) with an TRS to RCA converter cable (or C converter adapter), TS cable, etc., the sound quality may be impacted or noise may occur. ! The specifications and design of this product are subject to change without notice. g Accessories ! AC adapter (DWR1603 or DWR1612 or DWR1613) ! Power cord ( XDG3052 ) D ! USB cable *1 (DDE1158) ! Quick Start Guide (DRH1756) ! Precautions for Use (DRH1758) E ! Serato DJ Pro Pitch ’ n Time DJ voucher * 2 *1 One USB cable is included with the unit. To connect 2 devices to the unit, use an additional cable that conforms to USB 2.0 standards. * 2 The voucher code needed to activate the function can’ t be reissued. Keep it in a safe place to be sure you don’ t lose it. F DDJ-REV5 3 5 6 7 8

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