Sony-TA-AX44-Service-Manual电路原理图.pdf

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1、GENERAL System: Power Requirements: Power Consumption: AC Outlets: Dimensions: US Model Canadian Model AEP Model UK Model E Model INTEGRATED STEREO AMPLIFIER SPECIFICATIONS Preamplifier section: low-noise equalizer amp.; ASP tone control Power amplifier section: complementary SEPP OCL power amplifie

2、r with all stages direct coupled US, Canadian model: 120 V ac, 60 Hz AEP model: 220 V ac V ac adjustable by authorized Sony personnel), Hz UK model: 240 V ac V ac adjustable by authorized Sony personnel), Hz E model: 120, 220 or 240 V ac adjustable, Hz US, AEP model: 100 watts Canadian model: 155 wa

3、tts UK model: 270 watts E model: 100 watts AEP, UK model: 3 switched, total 100 watts max. US, Canadian model: Two switched (total 100 watts) One unswitched watts) E model: 2 switched, total 100 watts max. 1 unswitched, 100 watts max. Approx. 430 80 x 290 mm (w/h/d) 7 11 inches) including projecting

4、 parts and controls Weight:Approx. 5.6 kg Ibs 6 net Approx. 6 kg (13 lbs 4 in shipping carton AMPLIFIER SECTION POWER OUTPUT AND TOTAL HARMONIC DISTORTION (US, Canadian model) With 8 ohm loads, both channels driven, from 20 20,000 Hz; rated 40 watts per chan- nel minimum RMS power, with no more than

5、 0.008% total harmonic distortion from 250 milliwatts to rated output. Continued on page 2 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY SHADING AND MARK ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PAR

6、TS WHOSE PART NUMBERS APPEAR ATTENTION AU COMPOSANT AYANT RAPPORT AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS LA PUBLISHED BY SONY. LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET U N E M A R Q U E SUR LES MATIQUES, LES VUES ET LA DES SONT CRITIQUES POUR LA DE FONCTIONNEMENT. NE REMPLACER CES S O N Y SANTS

7、 QUE PAR DES SONY DONT LES SONT DANS CE MANUEL OU DANS LES PAR SONY.SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 Continuous RMS Power Output (Lea than 0.688% THD, both channels driven simultaneous- ly) (AEP, UK, model): Power Bandwidth (IHF): Dynamic Headroom: Harmonic Distortion: Intermodulation (IM) Dis

8、tortion 1): Frequency Response: Residual Noise: Damping Factor: At 20 Hz 20 40 + 40 watts (8 ohms) At 1 44 + 44 watts (8 ohms) According to DIN 45500 40 + 40 watts (8 ohms) 5 Hz 45 1.8 (78 IHF) Less than 0.008% at rated output Less than 0.008% at rated output PHONO: equalization curve TUNER TAPE 1.2

9、 Less than (8 ohms, network A) 50 (8 ohms, 1 Inputs: Maximum SIN capability * outputs: Voltage 150 Impedance 4.7 k ohms SPEAKER A, B Accepts speakers of 8 16 ohms. HEADPHONES Accepts low and high impedance head- phones. Tone Controls:BASS at 100 Hz (turnover freq. 500 Hz) TREBLE at 10 (turnover freq

10、. 2 Subsonic Filter:6 dB/octave attenuation below 15 Hz High Filter:6 attenuation above 9 Muting:-20dB FEATURES The 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”

11、switches and the tone, filter and volume settings are shown by fluorescent displays. HIGHLIGHTS OF THE CIRCUIT ASP (Audio Signal Processor) IC in the preamplifier stage Sony has developed a new audio device, called the Audio Signal Processor which can digitally control the tone, filter and volume se

12、ttings. The ASP also permits electronic program source tion. 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 a

13、nd 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 wa

14、veform smooth. Simple, straight signal path layout A heat-pipe cooling system and the ASP layout near the input and output terminals minimize wiring losses and allow low distor- tion OPERATING VOLTAGE Before connecting the unit to the power source, check that the operating voltage of your unit is th

15、e 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

16、 (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 oper

17、ates on 120 V ac. Wireless remote control operation Using the optional RM-44 system remote controller, various opera. tions power program selection, acoustic setting selec- tion, muting on/off and volume adjustment can be remotely con- trolled. RadioFans.CN 收音机爱 好者资料库 PRECAUTIONS On safety ?Check th

18、at the operating voltage of your unit is identical the voltage of your local power supply. ?Should any liquid or solid object fall into the cabinet, unplug the unit and have it checked by qualified personnel before operating any further. ?Unplug the unit from the wall outlet if it is not to be used

19、for an extended period of time. To disconnect the cord, pull it out by grasping the plug. Never pull the cord itself. On installation ?Do not install the in a location near heat sources such as radiators or air ducts, or in a place subject to direct sunlight, ex- cessive dust, mechanical vibration o

20、r shock. ?Good air circula ion is essential to prevent internal heat build-up in the unit. Place the unit in the location with adequate air circula- tion. Do not place the unit on a soft surface, such as a rug that would block the ven ilation holes on the bottom. ?DO not place anything on top of the

21、 cabinet. The top ventilation holes must be unobstructed for the proper opera ion of the unit and to prolong the life of its components. On operation ?Before making program source connections, be sure to turn the power switch off and unplug the unit. ?Do not attempt to test the protection circuits b

22、y blocking the ven- tilation holes or connec ing improper loads. ?When the unit is not used, turn the power off, to conserve energy and to extend the useful life of your unit. On cleaning the cabinet Clean the cabinet, panel and controls with a soft cloth lightly moistened with mild detergent soluti

23、on. Do not use any type of abrasive pad, scouring powder or solvent such as alcohol or zine. On repacking Do not throw away the carton and the packing material. It makes an ideal container to transport the unit in. When shipping the unit for repair work or to another location, repack it as illustrat

24、ed on the carton box. MODEL IDENTIFICATION Specification Label model1 MODEL NO. TA-AX44 INTEGRATED STEREO AMPLIFIER AC ? I SERIAL NO. L_ MADE IN JAPAN US, Canadian model MODEL NO. TA-AX44 INTEGRATED STEREO AMPLIFIER cl SERIAL NO. MADE IN JAPAN UK model MODEL NO. TA-AX44 INTEGRATED STEREO AMPLIFIER 2

25、70W cl cl SERIAL NO, MADE IN JAPAN LOCATION AND FUNCTION OF CONTROLS Fluorescent display VOLUMEMUTING TAPE COPY TAPE MONITOR POWER switch (See below. J control button switch switchswitches HEADPHONES jackBASS and TREBLE tone control buttons SUBSONIC filter switch switches MEMORY switch Fluorescent d

26、isplay section VOL UME indicator , MUTING indicator BALANCE indicator SPEAKER A and PHONO inputsTUNER inputsSPEAKER B terminalsAC OUTLETSRemote control connector Ground terminal CORDER 2 jacks TAPE inputs and REC OUT (recording output) jacks DA D/A (auxiliary) inputs ORDER 1 jacks TAPE inputs and RE

27、C OUT (recording output) jacks The Photo: AEP, UK model AC outlets These are used to power other audio components whose power consumption is less than the wattage indicated below the ac outlet. The SWITCHED outlet is controlled by the front panel POWER swit- ch. The UNSWITCHED outlet (only on the E

28、model) is not controlled by the POWER switch. Do not connect any electrical home appliance such as an electric iron, fan, TV or other high-wattage equipment to these ac outlets. The four groups of ac power cord plugs and ac outlets on your amplifier rear panel are illustrated below Group A Group E m

29、odel) AC outlet SWITCHED TOTAL 100 W MAX SWITCHED TOTAL The wires in this mains lead adaptor are coloured in accor- dance with the following code. UNSWITCHEDSWITCHED 100 W MAX TOTAL 100 W on the can supply power to the Tuner ST-JX44L. ST-JX-22L Turntable PS-LX5 Tape deck TC-FX44 For the Customers in

30、 the United Kingdom The mains lead plug of your apparatus is a type especially designed to be connected only to the Sony RM-44 system remote controller. The remote controller has a receptacle on the rear to receive this plug to supply mains power to other components of your audio system. To connect

31、the apparatus directly to a mains power point in your house, firmly insert the plug into the supplied mains lead adaptor. lead mains lead adaptor -CAUTION Connect the plug only to the mains outlet on the com- ponent mentioned above or to the supplied mains lead adap- tor. -Important Blue Neutral Bro

32、wn Live As the of the wires in the mains lead adaptor 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 ter- minal which is marked with the letter N or coloured black. Th

33、e wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red. * *Use the plug adaptor to connect the an outlet the house However. when power among the Sony components. adaptor not needed OPERATION TO GET SOUND Adjust the volume VOLUME When the po

34、wer is turned on, the volume be reset to then be up slowly to the previous setting. Press either end of the VOLUME control button when the volume adjusted to your preference. Select the speaker system used. A-SPEAKERS-B To speaker system A. depress A To drive speaker system B depress B To drive both

35、 speaker systems depress A and B For headphone listening only keep both released -Important points to remember ?The MONITOR switches have priority over the FUNCTION switches (PHONO, TUNER and DADIAUX) when they are engaged at the same time. ?To disengage he MONITOR switch, press the same switch agai

36、n. ?The TAPE COPY switch is a push-on/push-off switch, and does not affect any other FUNCTION or MONITOR switch. Select the program source and start the program. MONITORFUNCTION For the record program. For the tuner program. For sources connected to the For the taped program connected to the TAPE RE

37、CORDER 1 TAPE For the taped program connected to the TAPE RECORDER 2 TAPE SOUND ADJUSTMENTS Stereo balance The feeling of direction and depth that sound pro- duces is greatly diminished if the volume levels of the two channels are not balanced to produce a well-defined stereo image. Adjust the BALAN

38、CE control buttons as necessary. Proper setting of the BALANCE control will vary with different program sources because of differences in recording levels. Stereo balance is affected by the acoustics of the listening room, which itself is dependent on the shape and size of the room, the of the rooms

39、 furniture, and the carpet and wall coverings. Tone Use the tone control buttons to adjust the tone to the the listening the program When listening to a program source with noise, press the HI-FILTER switch. If the woofer cones of the speaker system move a lot when a warped record is played, press t

40、he SUBSONIC filter switch to reduce the very low-frequency distortion caused by record warp. The manipulation of the tone control section does not interrupt the signal path in the amplifier. However, its overuse may adversely af- fect amplifier tone quality. TAPE RECORDING AND TAPE COPY TO RECORD Se

41、lect the program to be recorded with the FUNCTION switches. Start the program and set the tape recorder in the record mode. Record The filters, and tone and volume settings have no effect on record- ing. Monitoring of a tape recorder If your tape recorder has separate record and playback heads, you

42、can monitor the recording results. When the tape recorder used for recording is connected to the TAPE RECORDER 1 REC OUT jacks, press the TAPE 1 switch and you can monitor the recording results. Press the TAPE 1 switch again to disengage, and the source sound will be heard. Be sure to keep the monit

43、or switch of the tape recorder in the TAPE position. TO COPY If you have two tape recorders, you can copy a taped program from tape recorder 1 (connected to TAPE RECORDER 1 TAPE inputs) to tape recorder 2 (connected to TAPE RECORDER 2 REC OUT out- puts). Tape copy from tape recorder 2 to tape record

44、er 1 cannot be made. You can copy a tape while listening to a record or a broadcast. Insert the recorded tape into the tape recorder 1 and a blank tape into the tape recorder 2. Press the TAPE COPY switch. Adjust the recording level of tape recorder 2. Start the playback of tape recorder 1 and the r

45、ecording of tape recorder 2. Copying will begin. ape deck 1 (for playback)Tape deck 2 (for recording To listen to a program while the tape is being copied For the playback sound of tape recorder 1 press the TAPE 1 switch. For a program source connected to the PHONO, TUNER or inputs press the appropr

46、iate FUNCTION switch. REMOTE CONTROL OPERATION WITH AN OPTIONAL REMOTE CONTROLLER The optional RM-44 system remote controller controls he following functions of the amplifier: power on/off, program selection, acoustic setting selection, muting on/off, and volume adjustment. This remote controller, w

47、ith its infrared ray sensor, can control con- nected components by an infrared ray transmitted from he RM-44C remote commander supplied with the system remote controller. For connections and opera ions, refer to the system remote con- trollers instruction manual. Tuner Cassette deck Turntable Infrared-ray commandRM-44