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TM
L LT TO O
ADP102
ADP152
User's Manual
Version 1.0
---English---
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TM Care & Safety Instructions L LT TO O All the safety and operating instructions should be read before this product is installed and operated. We recommend that installation be carried out by an authorized mobile electronics installation company. Please contact your local ALTO Mobile distributor for a list of authorized installers in your area. DO NOT DISASSEMBLE: No user serviceable parts inside; refer servicing to qualified personnel only. WATER & MOISTURE: The equipment should be protected
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TM Introduction L LT TO O Dear Customer, Thank you for choosing this ALTO Mobile ADP Series Full-Range Class-D Power Amplifier. We hope you will enjoy using this product as much as we enjoyed developing it. The ADP Series is the result of considerable research and development in our R&D centers in Europe and the Far East. It is a very close cousin of ALTO's professional Class-D amplifier models. We've been designing products for musicians and recording studios for a long time, so the car audi
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TM Drawings Showing the Front and Rear Panels L LT TO O INPUT OUTPUT POWER INPUT CH1 CH2 CH1 CH2 FUSE REM GND 12V 1 1 2 2 3 3 4 4 GAIN FREQ. HP/FLAT/LP CH 1. 2 CH 1. 2 5 5 6 6 3
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TM Installation & Setup Instructions L LT TO O Mounting the Unit Your ADP Series Power Amplifier has two fixing 'ears' at each side, allowing it to be firmly screwed to a suitable surface. It may be mounted vertically or horizontally, but avoid mounting the unit upside down (suspended from a shelf, for example) since this may affect efficient heat dissipation. Do not mount the unit under carpeting or within a small sealed enclosure, as this will prevent proper ventilation. Take care not to mo
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TM Installation & Setup Instructions L LT TO O You will find a Power Input terminal block at the far end of the side panel. There are three connections to be made: +12V The terminal marked +12V should be connected to a permanent (i.e. not ignition switched) positive 12 Volt supply from the vehicle battery. GND The terminal marked GND (Ground) should be connected to a cable which is terminated to the vehicle chassis. Ensure that the point where this cable attaches to the vehicle chassis provi
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TM Installation & Setup Instructions L LT TO O Use the correct size Allen Key to tighten the terminal screws. Before reconnecting power to the circuit, double check all connections are correct and ensure there are no stray strands of wire which could touch the chassis of the ADP amplifier or any of the other terminals. The power-on LED next to the power input terminal block will light to show the unit is receiving power. This is a 2 colour LED. Green means that all is working correctly. Red m
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TM Installation & Setup Instructions L LT TO O See how far you can take the volume control before the signal begins to clip (you may need to reduce the amp gain if it gets too loud). If you see it clip on the scope, back off the volume control a little. Now increase the gain on the amp until you find the highest level before distortion or visible clipping. Bear in mind that the maximum level may be limited by your speakers - don't over-drive them. 6 6 Low-Pass & High-Pass Filt
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TM Brief Technical Overview L LT TO O Although commonly referred to as a "digital" amplifier, Class-D is more accurately described as a Pulse Width Modulated (PWM) amplifier. A PWM amplifier converts the music (which is a complex arrangement of sine waves) into a series of pulses. The major benefit of this design is its great efficiency, which is the relationship between the amount of audio output power delivered to the speakers and the amount of power required from the vehicle's power supply
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TM Further Information L LT TO O For additional information, please visit our website at www.altomobile.com, which includes a technical discussion forum where users can exchange ideas. Troubleshooting Power LED not lit: Is the Remote switch cable from the source unit (Cassette or CD Player) attached to the REM terminal of the ADP amplifier, and is the source unit switched on? Are the +12V and GND (Ground) terminals connected correctly? Is the Ground cable properly attached to the chassis of t
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R TM Your ALTO Warranty L LT TO O To be protected by this warranty, the buyer must be able to produce a numbered, machine printed sales receipt from his supplying dealer that clearly shows the dealer's name and address, the buyer's name and address, purchase date, model and serial number of the product. ALTO warrants the mechanical and electronic components of this product to be free of defects in material and workman- ship for a period of one (1) year from the original date of purchase.
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TM Specifications L LT TO O ADP102 Power Output (RMS, 4 ohms): 50W X 2 THD: <0.05% @10Vrms Residual Noise: 120uVrms (A-wtd) Xover: HP/ LP/ FLAT switchable. 50Hz - 500Hz, 12dB/oct. Input Gain Range (MAX - MIN): 400mV to >15V Operating Voltage: 11 - 16V DC (negative ground) >90% Output Efficiency at Full Power: Protection Circuitry: current (LS output), voltage (+/-), temperature Idle Current (no signal): 0.6A Standby Current, REM input low: <1mA Size: 229 x 175 x 37mm 11
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TM Specifications L LT TO O ADP152 Power Output (RMS, 4 ohms): 75W X 2 THD: <0.05% @10Vrms Residual Noise: 120uVrms (A-wtd) Xover: HP/ LP/ FLAT switchable. 50Hz - 500Hz, 12dB/oct. Input Gain Range (MAX - MIN): 400mV to >15V Operating Voltage: 11 - 16V DC (negative ground) Output Efficiency at Full Power: >90% Protection Circuitry: current (LS output), voltage (+/-), temperature Idle Current (no signal): 0.6A 1mA Standby Current, REM input low: Size: 229 x 175 x 37mm 12
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SEIKAKU TECHNICAL GROUP LIMITED No. 1, Lane 17, Sec. 2, Han Shi W. Road, Taichung, 401 Taiwan http://www.altomobile.com Tel: 886-4-22313737 email: info@altomobile.com Fax: 886-4-22346757 All rights reserved to ALTO Mobile. Due to continued development in response to customer feedback, product features, specifications and/or internal/external design may be changed without prior notice. No photocopying, translation or reproduction of any part of this c user manual is allowed without prior
