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Clarion APX480M - page 1
APX480M manual.qxd 3/12/2004 1:07 PM Page 1 ...
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Clarion APX480M - page 2
APX480M Power System Amplifier INTRODUCTION The Clarion APX480M is a full-featured four-channel amplifier incorporating the following features: • S pecially coated circuit boards, that resist mold, mildew and moisture damage. • Pulse-Width Modulated (PWM) MOSFET power supply for maximum performance with minimal distortion. • Remote turn-on wi ...
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Clarion APX480M - page 3
Operation/Installation Manual 1 Owner ’s Manual DESCRIPTION The APX480M uses an unregulated MOSFET power supply for superior sound and output wattage. In addition, a toroid-coil is used to transfer power with minimal performance loss due to heat. T o avoid unwanted noise, a double-sided conformal printed circuit board with strategically placed co ...
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Clarion APX480M - page 4
APX480M Power System Amplifier 2 The Input Connections are gold-plated RCA Jacks and are labeled as FRONT RIGHT , FRONT LEFT , REAR RIGHT and REAR LEFT . The Gain Controls provide a wide adjustment range to accommodate output levels from any brand of source unit. • Gain Controls - Seperate Front and Rear Gain Controls allow you to set the nominal ...
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Clarion APX480M - page 5
Operation/Installation Manual 3 • Speaker Level Input s - These provide connections for a high-level stereo source. In addition, these connections are provided for installations when the source unit’s RCA outputs are unavailable. W ARNING : When using the speaker (high-level) inputs, the Black wire must be grounded at the Radio. Failure to do t ...
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Clarion APX480M - page 6
APX480M Power System Amplifier 4 INST ALLA TION This section suggests Mounting and Wiring Precautions for inst alling the Clarion APX480M amplifier . If you do not posses the necessary tools and installation experience, do not attempt to inst all this amplifier . Instead, con- tact your local Clarion dealer to perform the inst allation. MOUNTING PR ...
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Clarion APX480M - page 7
Operation/Installation Manual 5 6. When replacing the amplifier's fuse, always use one having the same amperage rating. Substituting a higher rated fuse or a slow-blow type can result in serious damage to the amplifier . 7. When creating passage holes for power cables, RCA's cords, and speaker wires, use grommets to eliminate any sharp ed ...
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Clarion APX480M - page 8
APX480M Power System Amplifier 6 Figure 5 In this 4-channel system, the APX480M drives a pair of stereo satellites for the front and a pair of subwoofers for the rear . Note the filter settings. 4-Channel S tereo System 2-Channel High-Pass, 2-Channel Low-Pass APX480M manual.qxd 3/12/2004 1:07 PM Page 8 ...
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Clarion APX480M - page 9
Operation/Installation Manual 7 2-Channel S tereo System with Low-Pass Bridged Mono Channel Figure 6 The APX480M can also be used to drive a pair of stereo satellites for the front and a single mono subwoofer for the rear . Note the filter settings. APX480M manual.qxd 3/12/2004 1:07 PM Page 9 ...
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Clarion APX480M - page 10
APX480M Power System Amplifier 8 2-Channel High Power System (Satellite or Subwoofer) Figure 7 The APX480M can be set up as a 2-channel high-power amplifier to drive a pair of satellites (or subwoofers). APX480M manual.qxd 3/12/2004 1:07 PM Page 10 ...
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Clarion APX480M - page 11
Operation/Installation Manual 9 Mixed-Mode System On Rear; Full-Range Speakers On Front Figure 8 The amplifier can be configured for a mixed-mode operation on either channels 1/2 or 3/4 amplifier sections. The t able provides component values to create a 6dB per octave crossover at specified frequencies. Use components that have a + 5% tolerance an ...
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Clarion APX480M - page 12
APX480M Power System Amplifier 10 SETTING THE GAIN After completing the inst allation, follow these steps to set the Gain Control and then perform the Final System Checks. 1. T urn the Gain Control all the way counter-clockwise. 2. T urn the vehicle’s Ignition Switch to the ON position. Then turn the ON/OFF Switch on the source units to the ON po ...
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Clarion APX480M - page 13
Operation/Installation Manual 11 FINAL SYSTEM CHECK 1. S tart the engine and turn on the source unit. After a two-second delay , slowly increase the V olume Control and listen to the audio. If you hear any noise, static, distortion or no sound at all, check the connections, and also refer to T roubleshooting. Depending on your system design, the le ...
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Clarion APX480M - page 14
APX480M Power System Amplifier 12 Problem Amplifier fuse keeps blowing. Solution Incorrect wiring or short circuit. Review Installation and check all wiring connections. Problem Whining or ticking noise in the audio with engine on. Solution Amplifier is picking up alternator noise or radiated noise. T urn down input gain; move audio cables away fro ...
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Clarion APX480M - page 15
Operation/Installation Manual 13 CLARION LIMITED W ARRANTY For USA and Canada only If purchased from an authorized Clarion dealer , this product is warranted against all defects in materials and workmanship for a period of one (1) year from the date of original purchase. Clarion ProAudio prod- ucts, except for speakers, are covered by a two (2) yea ...
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Clarion APX480M - page 16
APX480M manual.qxd 3/12/2004 1:07 PM Page 16 ...
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