Sony Ta-Ax44 Stereo Amplifier 电路图.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 IC equalizer amp.; ASP tone control Power amplifier section: pure- complementary SEPP OCL power

2、 amplifier with all stages direct coupled US, Canadian model: 120 V ac, 60 Hz AEP model: 220 V ac (240 V ac adjustable by authorized Sony personnel), 50/60 Hz UK model: 240 V ac (220 V ac adjustable by authorized Sony personnel), 50/60 Hz E model: 120, 220 or 240 V ac adjustable, 50160 Hz US, AEP mo

3、del: 100 watts Canadian model: 155 watts 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 (100 watts) E model: 2 switched, total 100 watts max. 1 unswitched, 100 watts max. Approx. 430 x 80 x 290

4、mm (w/h/d) (I 7 x 31/ x 11 I/ inches) including projecting parts and controls Weight:Approx. 5.6 kg (12 Ibs 6 oz) net Approx. 6 kg (13 lbs 4 oz) in shipping carton AMPLIFIER SECTION POWER OUTPUT AND TOTAL HARMONIC DISTORTION : (US, Canadian model) With 8 ohm loads, both channels driven, from 20 - 20

5、,000 Hz; rated 40 watts per chan- nel minimum RMS power, with no more than 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 B ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE

6、PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR ATTENTION AU COMPOSANT AYANT RAPPORT AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS d. LA ScCURITti!PUBLISHED BY SONY. LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET U N E M A R Q U E A SUR LES DIAGRA

7、MMES SCHi- MATIQUES, LES VUES CCLATiES ET LA LISTE DES PIiCES SONT CRITIQUES POUR LA SliCURITi DE FONCTIONNEMENT. NE REMPLACER CES COMPO- S O N Y SANTS QUE PAR DES PICCES SONY DONT LES NU- MCROS SONT DONNES DANS CE MANUEL OU DANS LES SUPPLeMENTS PUBLItiS PAR SONY.SERVICE MANUAL RadioFans.CN 收音机爱 好者资

8、料库 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 + 4

9、0 watts (8 ohms) At 1 kHz 44 + 44 watts (8 ohms) According to DIN 45500 40 + 40 watts (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 f0.5dB TUNER DAD/AUX TAPE 1.2 10Hz-120kHz;OdB Less than 35pV (8 ohms, network

10、A) 50 (8 ohms, 1 kHz) Inputs: I Maximum inputSIN (weihfmg capability (1 kliz)network, (“put le”e, I1 * 70 IHF outputs:RECOUT1,2 Voltage 150 mV 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 +lOdB at 100 Hz

11、 (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 FEATURES The TA-AX44 integrated stereo amplifier incorporates a number of technical breakthroughs in

12、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 a

13、udio 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 selec tion. Mechanical controls and switches have been practically eliminated from the front panel. In combination with a microcom- p

14、uter 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 h

15、igher 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-

16、 tion ooeration. OPERATING VOLTAGE Before 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 Uni

17、ted 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

18、 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, acousti

19、c 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 that the operating voltage of your unit is identical with the voltage of your local power supply. ? Should any liquid or solid object fall into the cabinet

20、, unplug the unit and have it checked by qualified personnel before operating It any further. ? Unplug the unit from the wall outlet if it is not to be used 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

21、install the unit 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 or shock. ? Good air circulation is essential to prevent internal heat build-up in the unit. Place the unit in the location with adequate

22、air circula- tion. Do not place the unit on a soft surface, such as a rug that would block the ventilation holes on the bottom. ? DO not place anything on top of the cabinet. The top ventilation holes must be unobstructed for the proper operation of the unit and to prolong the life of its components

23、. 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 by blocking the ven- tilation holes or connecting improper loads. ? When the unit is not used, turn the power off, to conserve energy

24、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 solution. Do not use any type of abrasive pad, scouring powder or solvent such as alcohol or ben- zine. On repacking Do not throw away the

25、 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 illustrated on the carton box. MODEL IDENTIFICATION - Specification Label - AEP model1 SONXMODEL NO. TA-AX44 INTEGRATED STEREO AMPLIFIER

26、 AC 2204% 50/60Hz 100 ? cl r- I SERIAL NO. I L_ MADE IN JAPAN US, Canadian model SON%MODEL NO. TA-AX44 INTEGRATED STEREO AMPLIFIER AC:l20V- f5OHz IOOW cl cl SERIAL NO. MADE IN JAPAN UK model SON% MODEL NO. TA-AX44 INTEGRATED STEREO AMPLIFIER AC:210V50/6OHz 270W cl cl SERIAL NO, MADE IN JAPAN RadioFa

27、ns.CN 收音机爱 好者资料库 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 ACOATIC switches MEMORY switch Fluorescent display s

28、ection VOL UME indicator , MUTING indicator er 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 UX (auxiliary) inputs ORDER 1 jacks TAPE inputs and REC

29、OUT (recording output) jacks * The ac 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

30、 E 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 (E ,no

31、drI only) Group I3 IUS, Calladll”, E model) AC outlet SWITCHED TOTAL 100 W MAX SWITCHED TOTAL The wires in this mains lead adaptor are coloured in accor- 100WMAX dance with the following code. UNSWITCHEDSWITCHED 100 W MAX / TOTAL 100 W ltlet on the ampllfier can supply ac power to the folIowIng com-

32、 Tuner ST-JX44L. ST-JX-22L TurntablePSLX33. PS-LX5 Tape deckTC-FXSOOR. TC-FX44 For the Customers in the United Kingdom The mains lead plug of your apparatus is a 3-pin type especially designed to be connected only to the Sony RM-44 system remote controller. The remote controller has a receptacle on

33、the rear to receive this plug to supply mains power to other components of your audio system. To connect the apparatus directly to a mains power point in your house, firmly insert the 3-pin plug into the supplied mains lead adaptor. manns lead mains lead adaptor -CAUTION Connect the 3.pin plug only

34、to the mains outlet on the com- ponent mentioned above or to the supplied mains lead adap- tor. -Important Blue : Neutral Brown : Live As the colours 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

35、 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. The 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 ampllfle

36、r to an ac outlet I” the house However. when makmg power connections among the Sony components. this adaptor IS not needed OPERATION TO GET SOUND 4 Adjust the volume. VOLUME 111111 When the power is turned on, the volume will be automatically reset to mnrmum, then will be up slowly to the previous s

37、etting. Press either end of the VOLUME control button when the volume IS adjusted to your preference. Select the speaker system used. A-SPEAKERS-B To dnve speaker system A. depress A swtch. To drive speaker system B depress B watch. To drive both speaker systems depress A and B swtches. For headphon

38、e listening only : keep both switches 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 the MONITOR switch, press the same switch again. ? The TAPE COPY switch is a

39、push-on/push-off switch, and does not affect any other FUNCTION or MONITOR switch. 3 Select the program source and start the program. MONITORFUNCTION I For the record program. For the tuner program. For auxiliary sources connected to the DADlAUX jacks. For the taped program connected to the TAPE REC

40、ORDER 1 TAPE lacks For the taped program connected to the TAPE RECORDER 2 TAPE lacks. SOUND ADJUSTMENTS Stereo balance The feeling of direction and depth that stereophonrc sound pro- duces is greatly diminished if the volume levels of the two channels are not balanced to produce a well-defined stere

41、o image. Adjust the BALANCE 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 alS0 affected by the acoustics of the listening room, which itself is dependent on the shape and size

42、 of the room, the locatron of the rooms furniture, and the carpet and wall coverings. Tone Use the tone control buttons to adjust the tone to surt the characterrstrcs of the listening iddm afld the program SOUrCe When listening to a program source with high.frequency noise, press the HI-FILTER switc

43、h. If the woofer cones of the speaker system move a lot when a warped record is played, press the 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 o

44、veruse may adversely af- fect amplifier tone quality. TAPE RECORDING AND TAPE COPY TO RECORD 0 Select the program to be recorded with the FUNCTION switches. Start the program and set the tape recorder in the record mode. Record olaver The filters, and tone and volume settings have no effect on recor

45、d- ing. Monitoring of a 3.head tape recorder If your tape recorder has separate record and playback heads, you 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 res

46、ults. Press the TAPE 1 switch again to disengage, and the source sound will be heard. Be sure to keep the monitor 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

47、tape recorder 2 (connected to TAPE RECORDER 2 REC OUT out- puts). Tape copy from tape recorder 2 to tape recorder 1 cannot be made. You can copy a tape while listening to a record or a broadcast. 0 Insert the recorded tape into the tape recorder 1 and a blank tape into the tape recorder 2. Press the

48、 TAPE COPY switch. Adjust the recording level of tape recorder 2. Start the playback of tape recorder 1 and the recording 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 ta

49、pe recorder 1 : press the TAPE 1 switch. For a program source connected to the PHONO, TUNER or DADlAUX inputs : press the appropriate FUNCTION switch. REMOTE CONTROL OPERATION WITH AN OPTIONAL REMOTE CONTROLLER The optional RM-44 system remote controller controls the following functions of the amplifier: power on/off, program selection, acoustic setting selection, muting on/off, and volume adjustment. This remote controller, with its infrared ray sensor, can control con- nected components by an infrared ray transmitted from the RM-44C remote commander supplied with the sys