User manual YAMAHA AX-730

[. . . ] Note: The plug severed from the mains lead must be destroyed, as a plug with bared flexible cord is hazardous if engaged in a live socket outlet. Special Instructions for U. K. Model IMPORTANT THE WIRES IN THE MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE: Blue: NEUTRAL Brown: LIVE As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED. Make sure that neither core is connected to the earth terminal of the three pin plug. 2 Thank you for selecting this YAMAHA stereo amplifier. English FEATURES q CONTENTS Supplied Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Controls and Their Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Basic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Notes about the Remote Control Transmitter. . . . . . . . . . . . . . . . 11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 q q q q 60W + 60W (8) RMS Output Power, 0. 04% THD, 20­20, 000 Hz High Dynamic Power, Low Impedance Drive Capability Continuously Variable Loudness Control CD DIRECT AMP Switch to Reproduce the Purest CD Sound Remote Control Capability CAUTION: READ THIS BEFORE OPERATING YOUR UNIT. 1. [. . . ] Be sure to read the "TROUBLESHOOTING" section regarding common operating errors before concluding that the unit is faulty. 9. When not planning to use this unit for long periods of time (ie. , vacation, etc. ), disconnect the AC power plug from the wall outlet. 10. To prevent lightning damage, disconnect the AC power plug and disconnect the antenna cable when there is an electrical storm. 11. Grounding or polarization ­ Precautions should be taken so that the grounding or polarization of an appliance is not defeated. 3 CONTROLS AND THEIR FUNCTIONS FRONT PANEL 12 3 NATURAL SOUND STEREO AMPLIFIER AX-730 MONITOR 4 5 POWER TAPE 2 TAPE 1 AUX PHONO TUNER CD CD DIRECT AMP COPY VOLUME BASS TREBLE BALANCE LOUDNESS PHONES SPEAKERS A ON B ON OFF OFF 6 7 8 9 0 A 1 POWER switch Press this switch to switch the power on. models only> While the power is on, pressing the POWER key on the remote control transmitter switches the unit to the standby mode. (In this mode, the power indicator is half illuminated. ) 2 Power indicator Lights up while the power is on. 7 SPEAKERS switches Set the switch A or B (or both A and B) for the speaker system (connected to this unit) you will use to the ON position. Set the switch for the speaker system you will not use to the OFF position. 8 Tone controls BASS Used to increase or decrease the low frequency response. The 0 position produces flat response. 3 Remote control sensor Receives signals from the remote control transmitter. 4 Input selector buttons and indicators Select a program source to listen to. 5 CD DIRECT AMP switch Press this switch inward to listen to a CD source in the purest sound. (Refer to page 10 for details. ) 6 PHONES jack When you listen with headphones, connect the headphones to the PHONES jack. The power to the SWITCHED outlets is controlled by this unit's POWER switch or the provided remote control transmitter's POWER key. These outlets will supply power to any component whenever this unit is turned on. The maximum power (total power consumption of components) that can be connected to the SWITCHED AC OUTLET(S) is 100 watts. GND terminal (For turntable use) Connecting the ground wire of the turntable to this terminal will normally minimize hum, but in some cases better results may be obtained with the ground wire disconnected. 7 BASIC OPERATIONS 2 NATURAL SOUND STEREO AMPLIFIER AX-730 MONITOR 3 TAPE 2 TAPE 1 AUX PHONO TUNER CD COPY BASS TREBLE BALANCE LOUDNESS 7 CD DIRECT AMP VOLUME POWER PHONES SPEAKERS A ON B ON OFF OFF 1, 6 4 TO PLAY A SOURCE 7 4 Select the speakers to be used. SPEAKERS A B ON ON 1 OFF OFF Set to the " " position. * If you use two speaker systems, press both the A and B switches. Play the source. 2 Turn the power on. POWER 5 6 3 Select the desired input source by pressing the corresponding input selector button. By doing so, CD's input signals are sent to the built-in amplifier special for CD directly bypassing the input selector buttons, the BASS, TREBLE, BALANCE and LOUDNESS controls, and then sent to the power amplifier. This signal routing reproduces the purest CD sound eliminating any alterations to the CD signals. CD DIRECT AMP SPEAKERS A B ON ON OFF OFF Adjusting the BALANCE control Adjust the balance of the output volume to the left and right speakers to compensate for sound imbalance caused by speaker location or listening room conditions. BALANCE l 2 3 4 L5 0 l 2 3 4 5R Adjusting the continuously variable LOUDNESS control This control provides compensation for the human ears' loss of sensitivity to high and low-frequency ranges at low volume. This control is adjustable to retain full tonal range at any volume level. 1 Adjusting the BASS and TREBLE controls BASS l 2 3 4 5 5 0 l 2 3 4 2 3 4 5 5 TREBLE l 0 l 2 3 4 LOUDNESS l 2 3 4 5 6 7 FLAT 30 dB l0 9 8 Set to the "FLAT" position. VOLUME BASS : Turn this clockwise to increase (or counterclockwise to decrease) the low frequency response. 2 28 34 40 l8 20 24 l6 l4 l2 l0 8 6 4 3 2 TREBLE : Turn this clockwise to increase (or counterclockwise to decrease) the high frequency response. 50 60 70 0 ­dB l Set to the loudest listening level that you would listen to. 3 2 3 LOUDNESS l FLAT 30 dB l0 9 Turn until the desired volume is gained. 4 5 6 7 8 10 NOTES ABOUT THE REMOTE CONTROL TRANSMITTER Battery installation Remote control transmitter operation range English 2 1 3 30° 30° Remote control sensor Within approximately 6 m (19. 7 feet) Battery replacement If you find that the remote control transmitter must be used closer to the main unit, the batteries are weak. (See the illustration inside the battery compartment. ) q Remove the batteries if the remote control transmitter will not be used for an extended period of time. Avoid touching the leaked material or letting it come in contact with clothing, etc. Clean the battery compartment thoroughly before installing new batteries. Notes q There should be no large obstacles between the remote control transmitter and the main unit. q If the remote control sensor is directly illuminated by strong lighting (especially an inverter type of fluorescent lamp etc. ), it might cause the remote control transmitter not to work correctly. [. . . ] The power to the component connected to the REC OUT terminals of this unit is off. Direct sunlight or lighting (of an inverter type of flourescent lamp etc. ) is striking the remote control sensor of the main unit. The batteries of this remote control transmitter are too weak. Replace the batteries with new ones. Turn the power to this unit on. The sound is degraded when listening with the headphones connected to the compact disc player or cassette deck that are connected with this unit. The power to this unit is off. 12 SPECIFICATIONS AUDIO SECTION Minimum RMS Output Power per Channel 8 ohms, 20 Hz to 20 kHz, 0. 04% THD . . . . . . . . . . . . . . . . . . . . 60W+60W 6 ohms, 20 Hz to 20 kHz, 0. 04% THD . . . . . . . . . . . . . . . . . . . . 65W+65W Maximum Output Power 6 ohms, 1 kHz, 10% THD [General model only]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95W+95W Dynamic Power per Channel (by IHF Dynamic Headroom measuring method) 8/6/4/2 ohms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80/95/115/125W DIN Standard Output Power per Channel 4 ohms, 1 kHz, 0. 7% THD [Europe model only] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90W IEC Power 8 ohms, 1 kHz, 0. 04% THD [Europe model only] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75W Power Band Width 8 ohms, 25W, 0. 08% THD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hz to 40 kHz Damping Factor 8 ohms, 20 Hz to 20 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 or more Input Sensitivity/Impedance PHONO MM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 5 mV/47 k-ohms CD/TUNER/TAPE/AUX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mV/47 k-ohms Maximum Input Signal (1 kHz, 0. 04% THD) PHONO MM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 mV Output Level/Impedance REC OUT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mV/0. 6 k-ohms Headphone Jack Rated Output/Impedance Output Level (8 ohms, 0. 04% THD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 42V Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390 ohms Frequency Response (20 Hz to 20 kHz) CD/TUNER/TAPE/AUX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0±0. 5 dB RIAA Equalization Deviation PHONO MM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0±0. 5 dB Total Harmonic Distortion PHONO MM to REC OUT 20 Hz to 20 kHz, 1V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 02% CD/TUNER/TAPE/AUX to SP OUT 20 Hz to 20 kHz, 30W/8 ohms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 02% Signal-to-Noise Ratio (IHF-A Network) PHONO MM to REC OUT (5 mV Input Shorted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 dB CD/TUNER/TAPE/AUX to SP OUT (Input Shorted, CD DIRECT ON/OFF). . . . . . . . . . . 108 dB/102 dB Residual Noise (IHF-A Network, CD DIRECT ON/OFF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 µV/140 µV Channel Separation (Vol. [. . . ]