User manual MARANTZ MM7025

[. . . ] Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not defeat the safety purpose of the polarized or grounding-type plug. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. [. . . ] € About Care • Wipe the cabinet and control panel clean with a soft cloth. € Benzene, paint thinner or other organic solvents as well as insecticide may cause material changes and discoloration if brought into contact with the unit, and should therefore not be used. Remote Power Control This unit is equipped with a remote power control function. When a Marantz AV Pretuner AV8003 or AV7005 is connected to this unit, this unit’s power can be switched ON/OFF together with the AV8003 or AV7005 power supply. Connection to the AV8003 or AV7005 is a ground floating connection that prevents negative influences on sound quality as far as possible. Improved instant power supply capability The final stage of the power amp is equipped with the same LAPT (high efficiency power transistor) that is installed in the SM-11S1 Marantz Hi-Fi power amp, providing improved instant power supply capability. As one of the essential parts of the power section, this unit is equipped with Marantz original 33, 000 μF / 71 V×2 (MM7055), and 15, 000 μF / 71 V×2 (MM7025) block condensers, which have been repeatedly tested for sound quality. These improvements to the power supply capability provide a powerful, presence-filled sound. Other Functions Equipped with IR flash input that supports custom installations, and DC trigger input and output terminals. High sound quality design based on pure surround philosophy Equipped with a chimney-shaped heat sink to efficiently process the heat emitted from each channel amp , and exceptionally quiet cooling fans. A high-sensitivity temperature sensor IC is used to control the cooling fans, adjusting the rotation speed to match the amount of heat generated by the amp. These components provide the sound quality and low-noise you would expect at a high-end theater. In addition, this unit is designed for superb quality sound, and is equipped with high quality components such as a high-end audio condenser and film condenser throughout. Indd 2 2010/07/29 20:55:44 ENGLISH Part names Front panel For buttons not explained here, see the page indicated in parentheses ( ). Getting started Rear panel See the page indicated in parentheses ( ). € You can set the auto standby function by pressing and holding this button for more than 5 seconds. Indd 3 2010/07/29 20:55:45 ENGLISH Connections NOTE • Do not plug in the power cord until all connections have been completed. € When making connections, also refer to the operating instructions of the other components being connected. N XLR connector PIN arrangement The PIN arrangement in this device uses the European method. When connecting a device that utilizes the USA type of PIN arrangement, replace the w and e plugs on one side of the balanced cable. Preparations Cables used for connections Prepare the correct cables for use with the additional devices. W e q q GND (Ground) w HOT (Hot) e COLD (Cold) Audio cables Balanced connections (XLR) Balanced cable Unbalanced connections (RCA) Audio cable Speaker connections Speaker connections Carefully check the channels of the speakers to be connected to this unit (L/R/SL/SR/C) and + (red), – (black), and connect like poles together. [. . . ] € When the auto standby function is ON: Lit • When the auto standby function is OFF: Off Troubleshooting STANDBY indicator Protection indicator Power indicator Specifications Index 9 MM7055_7025U_ENG_1st_0728. Indd 9 2010/07/29 20:55:49 ENGLISH Explanation of terms P Protection circuit This is a function to prevent damage to components within the power supply when an abnormality such as an overload or excess voltage occurs for any reason. In this unit, the STANDBY indicator and protection indicator blinks and the unit enters standby mode when an abnormality occurs. s Speaker impedance This is certain-rated resistance of the speaker set to an alternating current and expressed in ohms. [. . . ]