Technics-SAGX505-avr-sm 维修电路原理图.pdf

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4、ERG2ANJP331S 2.t 3301,4w mi._,ERDSZTJ6841,4w 680KERNFVJMT 1mV180 APrinted in JapanH910503570 NHIYUITN? REAR PANEL TERMINALS AND FUNCTIONS Antenna connectlon terminals “VIDEO OUT” terminalConnect a video connection cable (not Included) lo the videoinput termmal of TV or projection TV Outlets “SWITCHE

5、D”Power to these wflets IS cOntrOlled by the power swtch of fhlsun,. Audw equ,pmen, rated up to 80 W (total for all outlets)can be connected here For proper remote-control operation.connect the power cords of the ape deck and compacf discplayer 10 these outlets as indicated below: AC IN socket (AC I

6、N) Speaker impedance selectorBefore use, se, lo fhe correct Impedance corresponding to thewnpedance of the speaker systems be,“g used “GND” terminalConnect the turntables ground wire to this terminal (lfapplicable).-3 “PHONO” terminalsCnnec, a turntable only DO not connect any other soundsource to t

7、nese terminals. “CD” terminalsConnect a ,ere CO”C,IO cable (not Included) to the “LINEOUT termma, of the compact disc playerZ “TAPEIDAT” terminalsConnect a tape deck 01 a d&!,al audio tape deck (DAT) byusing stereo cnnec,lon cables (not included).0 “VCR 2” terminalsConner, a second VCR or a “ldeo di

8、sc player DY “Sl”g SlereOconnec,on cable (not Included) and video conneCtIOn cable(not included)Th,s “I,V,deo d,scplayer(not included)1SA-GX505 “VCR 1” terminalsConnect a “CR by us,ng stewa nnet,cr cables (not tnclud-ed) and wdeo connectlo” cables (not included) “CENTER OUT” terminalTh,s ,erm,“al IS

9、 used lo en,oy the Dolby Pro-Lo!& Surroundand the Dolby 3 stereo swndConnec, a Y-adaptor cable (not Included) to the audio l”p”tterminal(s) of the external amplifier or T”When us,“g the speakers, after sett,ng the center level 01 thethus “II to MAX. adjust fhe volume on the external ampllfler orthe

10、TVrirkr?TV (not included)INPUTI? ACCESSORIESAC power supply cord1pc.(SJA172-I) (P)(SJA172) (PC)AM loop antennaAM anfenna holder .I pc(SPBI 163T)1 pc.(SMA233-1 M) Remote-control OUT terminal(REMOTE CONTROL OUT)This terminal can be used only with Technics componentswhich have the appropriate remole-co

11、”lro1 terminal(Consul, your dealer for deta,Is )proper cO”“eC,lO” w,ttl remote-control COnneCtlO” cablesSJP2257T WIII allow control of some functions from thls unllsremote-control transmitterConnect to a tape deck and/or compact disc player as shownConnechon cable-for remoteoxtrol(Included wlfhcompa

12、ct disc8aRemote-control tra”SmlttelBafterleS(RAK-SASOl P,. .lpc( “ M - 4 “AAA” R03)2 pcsScrews2 pcs(XTN3+10AFZ)FM ,ndoor antenna(SSA272t.q.1 PC-4/ SA-GX505Amplifier section33 Speaker selectors (SPEAKERS)These S&?C,xS are used 10 Select the speaker svstem(s)(n an&x B, Parametric EQ system memory butt

13、on(MEMORY)ThlS button enabies the C”w?S 10 be Stored I” the palamefllcEQ system memory38; Parametric EC band select buttonsThese buttonS are “S&v3 to Select ,tle band 10 be ad,“sted$9 Equalization preset buttons(MANUAL PRESET)These buttons are used f0l stowlg 01 recallI”g ,tle C”lw?Smade by the para

14、metric EQ systemVolume control (VOLUME)s Headphones jack (PHONES)20 Fixed preset button (FIXED PRESET)ThIS button IS used l0 ,eca, a fIxed preset” C”l”e from ,Ilemall. “Its memlxy Dolby Pro-Logic Surround input balance con.trol (SURROUND INPUT BALANCE) Balance control (BALANCE)SA-GX505 1Amplifier se

15、ction Parametric EC system ON/OFF button(P. EQ SYS)This button IS used tc turn the parametnc ED system ON orOFFDolby Pro-Logic Surround ON/OFF button(SURROUND)T!s button IS used t0 actuate the Dolby Pro-Logic Surroundeffect Fine mode select button (FINE)Th,s button IS used to Me-adjust the center fr

16、equency Of theparametric EQ. Slope changeover button SLOPE (Q)jThis button is used 10 increase or decrease the slope of theparametric EC) curves Parametric EQltone mode select button(P.EQ/TONE)This buftcn IS used tc select parametnc ED mode or tonemode$ Center frequency select/bass control(CENTER FR

17、ED/BASS)This control is used lc select the center frequency in theparametric EQ mode or tc adjust the low-frequency sounds inthe tone mode Frequency level/treble control(LEVEL/TREBLE)This control is used tc adjust the frequency level in theparametric ED mcde or the high-frequency sounds in the tonem

18、ode.I Dolby 3 stereo ON/OFF button (3 STEREO)This button is used tc activate the Dolby 3 sterec effect Center mode select button (CENTER MODE)Each bme you press ,hls button, the center mode will changeas fcllcws: NORMAL- PHANTOM- CENTER OFF.I Test slgnal button (TEST)When “s,ns the center speaker an

19、d the rear speakers, press,h!s buttcn tc activate the test signal Then adjust the volumebalance of the center speaker and rear speakers.8 Center speaker level adjustment buttons(CENTER LEVEL)These buttcns are used 10 adjust the vclume level of thecenter speaker Rear speaker level adjustment buttons(

20、REAR LEVEL)These buttons are used tc adjust the volume level of the rearspeakers.-61 SA-OX505 Power “0 STANDBY/ON” switch(POWER, 6 STANDBY/ON)This switch is used to turn the power to the main unit ON andOFF.Selecting “OFF” from the remote control transmitter actuallysete the main unit to the “STANDB

21、Y” mode. Remotetontrol signal receptor(REMOTE SENSOR)Receives the signals from the remotecontrol. “STANDBY” indicator (STANDBY)This indicator illuminates when the “STANDBY” mode is se,by the main unit or the remote control transmitter.8 Preset.tuning buttons (1-O)(30 CHANNEL RANDOM PRESET TUNING)The

22、se bunons are used to preset broadcast frequencies intothe memory of this unit and to recall the desired presetstations.Tuning control (TUNING)This control is used to select an FM or AM broedcas,.When turning the control to the Mt. the frequency changesdownward. When turning the control to the right

23、. thefrequency changes upward.-7- Tunbqmode selector/indicator(TUNING MODE)Each time this selector is pressed, the selection changes, insequence. to “AUTO”, “MANUAL” and “LOCK”.AUTO:In this position. broadcast channels are automaticallyselected when the tuning control is momentarily turned to thelef

24、t or right to start the frequency changing.MANUAL:In this position, the tuning control can be used to locate thedesired channel manually.The frequency changes only as the tuning control is turned tothe right to left.LOCK:In this position, the broadcast channel presently being heard islocked in, and

25、other broadcast stations cannot be tuned to,even if the tuning control is turned. Band selectorsFM: Press this button to listen to an FM broadcast.AM: Preee this button to lieten to an AM broadcast.I FM mode selector (FM MODE)This unit automatically switches to the stereo mode when anFM stereo broad

26、cast is received This eelecfor is used toeetec, the mode (stereo or monaural) of FM broadcast signals. Memory scan button (MEMORY SCAN)This button is used to kete e desired broadcast station: eachbroadcast station is selected for about 3 seconds.$J Memory button (MEMORY)This button is used when pres

27、etting broadcae, stationfrequencies into fnemorySA-GX505 1Display section0 FM stereo indicator (STEREO)This indicator automatically illuminates when an FM stereobroadcast is being received.It will not illuminate if the FM mode selector is sel 10 themonaural mode.6j Spectrum analysis/parametric EQ le

28、vel display(SPECTRUM ANALYZER/PARAMETRIC EQ)This display shows the specfrum analysis level (“Bar-typedisplay” or “DO, display”) or equalization level. Quartz-lock indicator (QUARTZ LOCK)This indicator illuminates when the “nit is tuned precisely 10 abroadcast station. Channel displayThis display sho

29、ws the channel number selected by one of Ihepreset4”ning buttons.Also this display shows the channel number for about 3seconds during memory scan operation.I Band indicators (AM, FM)Indicates the selected band. Memory indicator (MEMORY)This indicator illuminates when the memory button is pressed. Me

30、mory scan indicator (M. SCAN)This indicator illuminates when the memory scan button ispressed. Audio input selector/frequency display(INPUT SELECTOR/FREQUENCY)Displays the selected source or broadcasf frequency. Tape indicator (TAPE)This indicator will illuminafe when the fape-monitor switch ispress

31、ed. VCR display (VCR)Displays the selected VCR.CfJ Loudness indicator (LOUDNESS)This indicator will illuminate when the loudness switch ispressed. Muting indicator (MUTING)This indicator will illuminate when the muting button (on theremotexontrol transmitter) is pressed.I Center mode indicatorsThese

32、 indicators show the center mode selected by the centermode select button. Rear/center level indicatorDisplays the level adjusted by fhe center speaker leveladjustment button or rear speaker level adjustment button. Test signal indicator (H TEST)This indicator illuminates when the test signal button

33、 ispressed in the Dolby ProLogic Surround mode and theDolby 3 stereo mode.a Fine mode indicator (FINE)This indicator illuminates when the line mode select button ispressed in the parametric EO mode. ;,;tric EQ system center frequencyIt displays the center lrequency of the curves in theparametric EQ

34、mode arranged by the user with the parametricEQ system 01 the curve* pre-programmed in this unirsml?mqry. Parametric EQ system off indicator (OFF)This indicator illuminates when the parametric EO system isOff.0 Tone mode indicator (TONE MODE)This indicator illuminates when the parametric EQltone mod

35、eselect button is set lo the tone mode.I Parametric EQ mode indicator (P.EQ MODE)This indicator illuminates when the parametric EQltone modeselect button is set 10 the parametric EO mode. Dolby 3 stereo indicator (DOLBY 3 STEREO)This indicator illuminates when the Dolby 3 stereo ON/OFFbutton is swit

36、ched ON.$ Dolby Pro-Logic Surround indicator(MIDOLBY SURROUNDS, PRO-LOGIC)This indicator illuminates when the Dolby Pro-Logic Surroundmode is selected.0 Manual/fixed preset indicators(1 2 3 FLAT)It displays the Type of curve selected with the equalizationpreset buttons or fixed preset button in the

37、parametric EOmode.0 Parametric EC4 system memory indicator (M)This indicator illuminates when the parametric EQ systemmemory button is pressed in the parametric EQ mode.0 Parametric EQ system operation selectindicators (MANUAL/FIXED)One of these indicators will illuminate in accordance with thefixed

38、 preset button or equalization preset buttons setting.9-SA-GX505 1Tuner controlsFunction selector controls-Cassette deck controlsRemote control sectionTuner controls (Fig 1)Power switch (POWER)$ Preset-tuning buttons (1-O)This power switch is used for controlling the power (ON/OFF) ofthis system as

39、well as any Panasonic remote controlled TVandlor VCR.When switching the power of each unit ON and OFF, be sure tofirst press the appropriate function selector button 0” theremote co”trol transmitter.These button* are used to tune lo broadcast stations mat havebee” preset to the units memory.When the

40、se buttons are used, be sure to first press the“TUNER” button of the function selector buttons on the remotecontrol transmitter.Cassette deck COfItrOlS (Fig. 2) Record button (0 REC)Pm?% this button lo change lo the recording stand-by mode.$ Playback buttons (4 PLAY .)To begin playback or recording,

41、 press one of these buttons car-responding lo the side of the tape to be played (or recorded). Deck l/Deck 2 selector.: For the “A”-side 01 the tape4: For the “Wside of the tapeThis button is used to select the deck lo be operated byremote control when a double cassett deck is connected Withthis uni

42、t.$ qGf;rd/cue/rewind/review buttonsPause button (II PAUSE)Press this button lo temporarily stop playback or recording.Press the playback button lo resume the play or recording.Press this button lo advance or rewind the tape while the unitis in the stop mode.Press this button to cue or review the co

43、ntents at high speed,while the unit is in the play mode.Function selector controls (Fig. 3)Stop button (m STOP)TO stop tape mwement.Function selector buttons(TUNER, TV, VCR, CD)These buttons are used lo change the functions 01 this remotecontrol.- 101SA-GX505-Amplifier controlsCompact disc player co

44、ntrols.Fig. 6Amplifier controls (Fig. 4) Dolby Pro-Logic Surround ONIOFF button8 Rear speaker level adjustment buttons(SURROUND)(v REAR LEVEL A)This button is us?d to activated the Dolby Pro-Logic SurroundThese buttons are used 10 adjust the volume le”el 01 the reareffect.speaker systems.Muting butt

45、on (MUTING)Volume control (v VOLUME A)This button is used lo temporarily attenuate (“mute”) thevolume level.These buttons are used lo adjust the “ol”me le”elV: TO reduce the volume le”elA: To increase the volume level.Compact disc player controls (Fig. 5)Numeric buttons (I-O, +10)These buttons are u

46、sed to select the track or the disc number(only 1-5).When these buttons are used, be sure lo first press the “CD”Program/continue button(PROGRAM/CONTINUE)This button is used to select either the sequential play or pro-gram play mcde.8 Disc button (DISC)3 Stop button (M STOP)To stop compact disc play

47、.This button is used to select the disc when a multi compactdisc player is connected with this unit. Play button 0 PLAY)To start compact disc play. Pause button (II PAUSE)To temporarily stop compact disc play Skip buttons (144 SKIP .I)Press one 01 these buttons briefly lo move the pickup(backward or

48、 forward) lo the beginning of a specific track.- 11SA-GX505 1Video controlsRemote control sectionTV COfItrOlS (Fig 6)Preset channel buttons (1-O)Channel up/down buttons (v CH A)These b”tfons are used lo select TV channels.These b”tfons are used 10 select 77 channels.Video COfItrOlS (Fig. 7)Preset ch

49、annel buttons (1-O)These buttons are used lo select video channels.Fast.forward/rewind buttons(44 REW, . . FF)Channel up/down buttons (r CH A)These b”ttons are used to select video channels.Selector buttons (SELECTOR)VCR 1: Press this buttm to elecf the “VCR” 1 input selectorPress one of these butto

50、ns lo advance or rewind the tape whilethe “nit is in the stop mode.Playback button (b PLAY)This button is used for video playback.position on the main “nit.“CR 2: Press this button to select the “VCR 2” inputeiectol position on the main “nit.t Pause button (II PAUSE)This button is used lo pause duri