Sony ta ax 44 service manual

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Continuous RMS Power Output (Lea than 0.688% THD, both channels driven simultaneous- ly) (AEP, UK, E model): Power Bandwidth (IHF): Dynamic Headroom: Harmonic Distortion: Intermodulation (IM) Distortion (60Hr: 7kHz=4: 1): Frequency Response: Residual Noise: Damping Factor:At 20 Hz - 20 kHz 40 + 40watts (8 ohms) At 1 kHz44 + 44watts (8 ohms) According to DIN 45500 40 + 40watts (8 ohms) 5 Hz - 45 kHz 1.8 dB (78 IHF) Less than 0.008% at rated output Less than 0.008% at rated output PHONO: AIAA equalization curve f0.5dBTUNER DAD/AUXTAPE 1.2 10Hz-120kHz;OdBLess than 35pV (8 ohms, network A) 50 (8 ohms, 1 kHz)Inputs: I Maximum inputSIN (wei~hfmgcapability (1 kliz) network, (put lee, I 1* 70 IHF outputs: RECOUT1,2Voltage 150 mVImpedance 4.7 k ohms SPEAKER A, B Accepts speakers of 8 - 16 ohms. HEADPHONES Accepts low and high impedance head- phones.Tone Controls: BASS +lOdB at 100 Hz (turnover freq. 500 Hz) TREBLE ?lOdB at 10 kHz (turnover freq. 2 kHz) Subsonic Filter: 6 dB/octave attenuation below 15 Hz High Filter:6 dB/octave attenuation above 9 kHz Muting:-20dB 1 OdB=0.775V 1 FEATURESThe TA-AX44 integrated stereo amplifier incorporates a number of technical breakthroughs in circuit design. On its attractive front panel most of the controls and switches are touch pad switches and the tone, filter and volume settings are shown by fluorescent displays.HIGHLIGHTS OF THE TA-AX44S CIRCUIT ASP (Audio Signal Processor) IC in the preamplifier stage Sony has developed a new audio device, called the Audio Signal Processor IC, which can digitally control the tone, filter and volume settings. The ASP IC also permits electronic program source selection. Mechanical controls and switches have been practically eliminated from the front panel. In combination with a microcom- puter and a non-volatile memory IC, the ASP IC offers greater flex- ibility - an Acoustic Function, an ability to store and recall two sets of tonal adjustments. Legato linear power amplifier stage The operation of the power amplifier stage is stable without any observable distortion up through the higher frequencies. We call this power amp Legato Linear because its switching distortion is very low and its output waveform smooth. Simple, straight signal path layout A heat-pipe cooling system and the ASP IC layout near the input and output terminals minimize wiring losses and allow low distor- tion ooeration. OPERATING VOLTAGEBefore connecting the unit to the power source, check that the operating voltage of your unit is the same as the local power line voltage.The Continental European model (AEP model) operates on 220 V ac (or 240 V ac adjustable by authorized Sony personnel). The United Kingdom model (UK model) operates on 240 V ac (or 220 V ac adjustable by authorized Sony personnel). The model for other countries (E model) operates on either 120, 220 or 240 V ac. The voltage selector is located on the rear panel. If the selector must be reset, disconnect the ac power cord and turn the selector with a coin so that the arrow mark of the selector points to the proper voltage figure. The US, Canadian model operates on 120 V ac. Wireless remote control operation ~Using the optional RM-44 system remote controller, various opera. tions - power on/off, program selection, acoustic setting selec- tion, muting on/off and volume adjustment - can be remotely con- trolled.