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Russound. This Electronic file and all documents contained within are private, confidential and the sole property of Russound/FMP, Inc. The concepts, ideas and information are proprietary and may not be disclosed to third parties. All Rights Reserved. Printed in the United States of America. This document, or parts thereof, may not be...
R275HC man2.qxd 6/28/05 10:38 AM Page 2 IMPORTANT SAFEGUARDS of the type described in the operating instructions or as marked on the appli- ance. 12.Main Power Disconnect - The power switch is a single-pole switch. When the switch is in the “Off” position, the appliance is not completely disconnected from the main power.
Page 3 R275HC AMPLIFIER INTRODUCTION The Russound R275HC is a 2-channel high-current power The R275HC is rated at 75 watts per channel into 8 amplifier capable of driving low impedance loads and ohms and 100 watts into 4 ohms. With the incorporates selectable volume control protection circuitry.
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R275HC man2.qxd 6/28/05 10:38 AM Page 4 R275HC AMPLIFIER Power Switch: Turns the amplifier on/off. This Stereo/Bridge Mono Switch: Sets the pair of switch does not disconnect the main power feed amplifier channels for stereo or bridge mono opera- from the amplifier; this requires that the power cord tion.
8-ohm Speaker THERMAL PROTECTION PROTECTION CIRCUITRY All Russound amplifiers are designed with special circuit- All Russound amplifiers are designed with special circuit- ry to safeguard the amplifier under a thermal overload ry to safeguard the amplifier under a short-circuit condi- condition.
R275HC for this application, set the Low Cut switch to the “On” position. Turning this filter “on” Line out from Source Low Cut switch in “On” position EZB-1SC Modular Autoformer-based RUSSOUND RUSSOUND Connecting Block volume control SPEAKERS SPEAKERS SPEAKERS...
20.3lbs. (9.2kg) WARRANTY The Russound R275HC is fully guaranteed for two (2) years from the date of purchase against all defects in materials and workmanship. During this period Russound will replace any defective parts and correct any defect in workman- ship without charge for either parts or labor.
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R275HC man2.qxd 6/28/05 10:38 AM Page 8 R-Series R275HC 2-Channel Power Amplifier User’s Manual 5 Forbes Rd. Newmarket, NH 03857, USA Tel 603.659.5170 • Fax 603.659.5388 e-mail: tech@russound.com 28-1167 06/24/05...
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R275HC TEST PROCEDURE Revised April 18, 2005 The purpose of this Test Procedure is to instruct both the Russound Test Department and any outside Service Technician. Equipment Needed: 2 - R275HC Amplifier R275HC Instruction Manual CD player Speakers Oscilloscope Inspect sheet metal.
Audio Test: Stereo Audio Test: 1) Connect the CD player output to the Line Input Left and Right Channel. 2) Attach speakers to Speaker A and perform the following steps. 3) Press Play on the CD player. 4) The Front Panel LED will illuminate Green ***Note: The Front Panel LED will illuminate Green even when the Left and Right Channel Level controls adjusted for no volume, turned fully counter clockwise.
Loop Output 1) Connect the Loop Output Right and Left channel to a second R275HC’s Line Input Right and Left channel. 2) Connect your speakers to the second R275HC’s Speaker A. 3) On the second R275HC adjust the following: Right and Left Channel Level set to fully counter clockwise. Stereo/Bridge slide switch to Stereo Power set to On.
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Low Cut (Volume Control Protection) Test: 1) Connect Speakers and Oscilloscope to Speaker A. Speaker A Left Channel to Vertical Input Channel 1 of Oscilloscope. Speaker A Right Channel to Vertical Input Channel 2 of Oscilloscope. Go to Dual Trace Mode of Oscilloscope. Adjust Time Base of Oscilloscope for 20ms.
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Protection Circuitry Test: Build the following jumpers for this test. There will be three jumpers total. ***Use 16AWG wire only*** Short R+ and R- of one Speaker A connector. ***Use 16AWG wire only*** Short L+ and L- of a second Speaker A connector. ***Use 16AWG wire only*** Using Banana Plugs Short two together.
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1) Turn the Left and Right Channel Level controls all the way counter clockwise. 2) Set the Stereo/Bridge slide switch to the Stereo position. 3) Set the Low Cut (volume protection) slide switch set to Off. 4) Press Play on the CD player and play any song. 5) The Front Panel LED will illuminate Green.
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The settings for each zone should be as follows before repacking: 1) Turn the Left and Right Channel Level controls all the way counter clockwise. 2) Set the Stereo/Bridge slide switch to the Stereo position. 3) Set the Low Cut (volume protection) slide switch set to Off. ***Step 4 is for the 230VAC R275HC only*** 4) Ensure the plastic plugs are inserted in Speaker B posts.
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4.7uF/50V -43V 3P3.96B 3P3.96B HS4-R275HC_B007_VM1.1-POW.SCH HS4-R275HC_B007_VM1.1-POW.SCH HS4-R275HC_B007_VM1.1-POW.SCH 4P3.96B 4P3.96B RUSSOUND R275HC POWER AMPLIFIER RUSSOUND R275HC POWER AMPLIFIER RUSSOUND R275HC POWER AMPLIFIER TO POWERAMP BOARD POWER SUPPLY SECTION POWER SUPPLY SECTION POWER SUPPLY SECTION TO POWERAMP BOARD Wednesday, March 30, 2005...
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100uF/50V 100uF/50V R412 R412 GREEN -43V HS4-R275HC_B007_VM1.1-AMP.SCH HS4-R275HC_B007_VM1.1-AMP.SCH HS4-R275HC_B007_VM1.1-AMP.SCH RUSSOUND R275HC POWER AMPLIFIER RUSSOUND R275HC POWER AMPLIFIER RUSSOUND R275HC POWER AMPLIFIER POWERAMP SECTION POWERAMP SECTION POWERAMP SECTION Wednesday, March 30, 2005 Wednesday, March 30, 2005 Wednesday, March 30, 2005 DRAW:...
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VM2.0 R275HC PARTS LIST HS4-R275HC_B013VM2.0 for MP 2005-5-11 :;<=> '?@$ / AB / PTA Consump Confirm Description Part Type Designator Footprint Manufacturer Manufacturer model no. Remark tive parts status ed parts C VERSION P/N00-27500-20 (CUSTOMER P/N:41-9899) AH VERSION P/N00-27500-10 (CUSTOMER P/N:2800-521898) 01-27501-00...
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VM2.0 R275HC PARTS LIST HS4-R275HC_B013VM2.0 for MP 2005-5-11 :;<=> '?@$ / AB / PTA Consump Confirm Description Part Type Designator Footprint Manufacturer Manufacturer model no. Remark tive parts status ed parts C VERSION P/N00-27500-20 (CUSTOMER P/N:41-9899) AH VERSION P/N00-27500-10 (CUSTOMER P/N:2800-521898) C318, C321, C325, C418, C421,...
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VM2.0 R275HC PARTS LIST HS4-R275HC_B013VM2.0 for MP 2005-5-11 :;<=> '?@$ / AB / PTA Consump Confirm Description Part Type Designator Footprint Manufacturer Manufacturer model no. Remark tive parts status ed parts C VERSION P/N00-27500-20 (CUSTOMER P/N:41-9899) AH VERSION P/N00-27500-10 (CUSTOMER P/N:2800-521898) J116, J209, J214, J319, J401,...
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VM2.0 R275HC PARTS LIST HS4-R275HC_B013VM2.0 for MP 2005-5-11 :;<=> '?@$ / AB / PTA Consump Confirm Description Part Type Designator Footprint Manufacturer Manufacturer model no. Remark tive parts status ed parts C VERSION P/N00-27500-20 (CUSTOMER P/N:41-9899) AH VERSION P/N00-27500-10 (CUSTOMER P/N:2800-521898) 1M5 Ω, 1/6W, ±5%...
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VM2.0 R275HC PARTS LIST HS4-R275HC_B013VM2.0 for MP 2005-5-11 :;<=> '?@$ / AB / PTA Consump Confirm Description Part Type Designator Footprint Manufacturer Manufacturer model no. Remark tive parts status ed parts C VERSION P/N00-27500-20 (CUSTOMER P/N:41-9899) AH VERSION P/N00-27500-10 (CUSTOMER P/N:2800-521898) ,X'%( )*...
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VM2.0 R275HC PARTS LIST HS4-R275HC_B013VM2.0 for MP 2005-5-11 :;<=> '?@$ / AB / PTA Consump Confirm Description Part Type Designator Footprint Manufacturer Manufacturer model no. Remark tive parts status ed parts C VERSION P/N00-27500-20 (CUSTOMER P/N:41-9899) AH VERSION P/N00-27500-10 (CUSTOMER P/N:2800-521898) C602, C613, C615, C616, C618,...
VM2.0 R275HC PARTS LIST HS4-R275HC_B013VM2.0 for MP 2005-5-11 :;<=> '?@$ / AB / PTA Consump Confirm Description Part Type Designator Footprint Manufacturer Manufacturer model no. Remark tive parts status ed parts C VERSION P/N00-27500-20 (CUSTOMER P/N:41-9899) AH VERSION P/N00-27500-10 (CUSTOMER P/N:2800-521898) 01-27503-00...
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VM2.0 R275HC PARTS LIST HS4-R275HC_B013VM2.0 for MP 2005-5-11 :;<=> '?@$ / AB / PTA Consump Confirm Description Part Type Designator Footprint Manufacturer Manufacturer model no. Remark tive parts status ed parts C VERSION P/N00-27500-20 (CUSTOMER P/N:41-9899) AH VERSION P/N00-27500-10 (CUSTOMER P/N:2800-521898) MISC...
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VM2.0 R275HC PARTS LIST HS4-R275HC_B013VM2.0 for MP 2005-5-11 :;<=> '?@$ / AB / PTA Consump Confirm Description Part Type Designator Footprint Manufacturer Manufacturer model no. Remark tive parts status ed parts C VERSION P/N00-27500-20 (CUSTOMER P/N:41-9899) AH VERSION P/N00-27500-10 (CUSTOMER P/N:2800-521898) 84-001003-0...
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VM2.0 R275HC PARTS LIST HS4-R275HC_B013VM2.0 for MP 2005-5-11 :;<=> '?@$ / AB / PTA Consump Confirm Description Part Type Designator Footprint Manufacturer Manufacturer model no. Remark tive parts status ed parts C VERSION P/N00-27500-20 (CUSTOMER P/N:41-9899) AH VERSION P/N00-27500-10 (CUSTOMER P/N:2800-521898) @61.0...
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