Pioneer SX-750, Service Manual

Page 1: ...l B E t E b E b alt fr F DrrroNEEFr ...

Page 2: ...5 4 PhonoEqualizer Amplifier 5 1 AMTuner 5 2 FMTuner DISASSEMBLY 13 13 1 5 15 15 1 5 16 1 7 17 18 19 20 21 6 ADJUSTMENTS 6 1 AM Section 6 2 FMSection 6 3 MPXAdjusrment 6 4 PowerAmplifierSection 7 8 9 10 DIALCORD STRINGTNG 22 23 24 25 27 29 31 33 35 37 38 39 40 41 42 43 LEVELDIAGRAM PARTSLOCATION 10 1 FrontPanel View 1O 2 Front PanelView with removd front panel 10 3 Top View 10 5 RearView 10 4 Bott...

Page 3: ...8 12 4 Filter Muting Assembly AWM 094 50 12 5 ToneControl Assembly AWG 046 52 12 6 PowerAmplifierAssembly AWH 046 54 12 7 PowerSupply ProtectionAssembly AWR 099 58 P A PowerSupplyAssembly AWR 1001 62 12 9 Headphone Jack Assembly AWX 106 64 12 10 Tuner AF Control Assembly AWE 073 65 12 11 AmplifierAssembly AWK 065 73 12 12 De mphasis Switch assembly AWXO95 74 45 47 ...

Page 4: ... Response PHONO RIAAequalization 30 Hertzto 15 000 Hertz O 2dB AUX TAPE PLAY l0 Hertzto 50 000Herrz dB I 7 42 4 0 ToneControl B A S S T R E B L E 8dB 7dB 100Hz 9d8 7dB 10 kHz Filter H G H 6 k H z 6 d B o c t Loudness Contour Volumecontrolset at 40dBposition 6dB 100Hz 3dB 10kHz Hum andNoise lHF short circuited A Network ratedpower P H O N O 7 0 d B A U X T A P E P L A Y 9 O d B FM Section usablesen...

Page 5: ...l s 3kg 33lb 1 1 oz 300sV m 1 5 t t V 35dB 50dB 40dB Miscellaneous P o w e r R e q u i r e m e n t s 1 2 0 V 6 0 H 2 Power Consumption 160W UL 350W max Dimensions 480 W x 149 H x 371 D mm 18 718 w x s 7l8 H x 14 sl8 D in W e i g h t w i t h o u t p a c k a g e with package FurnishedParts FN4 T typeAntenna Operating Instructions NOTE Specifications and designsubject to possiblemodificotion without ...

Page 6: ...s Sound will be heard from soeakers con nected to B speaker terminals Sound will be heard from speakers con nectedto A terminalsand from speakers connected to B terminals STEREOINDICATORLAMP Lights whenFMstereo broadcast isbeing received Dr IONCGT BT EPEAKEFg l BALANCECONTROL For adjustmentof relativeoutput levelsof L and R channelsof speakersystemsor headphones Clockwise rotationfrom centerpositi...

Page 7: ... R andL channels TAPEMONITOR SWITCH 1 For program sourcesother than tape deck playback RECor PLAY SOURCE For program sourcesother than tape deck playback 2 For monitoringof playbackor recordmode of tape deckconnected to TAPE 2 terminals RECor PLAY NOTE Whennot monitoringrecordor playbackmodeof a tape dech switch should bein SOURCEposition In position 1 or 2 theprogram sourceindicated by the FUNCTI...

Page 8: ...h For normal FM recebtion rhis switch shorrld be set on 75 S unir is set to rhis when leavingfactory The 25pS setting is used only when listening to FM Dolby transmissaons When listeningro FM Dotby transmissions it wi be necessary lo use an NR adaptor wiich can be purchased separately More detailed instructions witt be found in the section FM Dotbv Reception Antenna should not tte placed where it ...

Page 9: ...watts maxamuml Unslvitchod Power to this outlet is not controttedby the SX 75O power swilch As long as the power cord is plugged into a tive outlet this outlet will supply AC current maximum 300 warts AC outl ts L channel R chr A SPEAKER SYSTEMS L channel m R channel m 0000 0 0 000000 00 0 0 000 000 rt0000000000000000000000000 B SPEAKER SYSTEMS Carrridg tape deck Tape deck Fig 2 ...

Page 10: ...H P c c 3 5 Tone control ON I I EQ t rF rr U p a ON OFF I I I I I I I I I U IY P t rl o_ g 1 l I I I I I J 7 I L PHONO R L A U X n K tl lc 0 N 6 l OFF t 16nggQnTfol ON DCPOWER SUPPLY a F Y h AC POWER C J C k LLJ _l q D l _ _ i FI1 TUNER rPFRI F bA TAl136P1 I I I t f t l i l i t t l I I c Lri o_ f IRFRIF tV J L _ 5 Localoscillafor g l f tr i _ H i oa o 3O 2 1 1 S r o ACoutlet ACouilet AC 5V Dia I i...

Page 11: ...IRCUIT AC I 5V Tone contr ol ON Tone controi ON ll i SUPPLY HrqrI FlLTERy s w r i i t l ftsl2yidnive Sze q V Z U Szu Over ourr ent over Ioad I detec fion _ J DCPOWER ProXram indicator eLo 2 o o 5e 1 l I n I L _ _ R PHONES SPEAKERS n K Sr FUNCTI0N switch Sz SPEAKERS switch 1 A I 1 1 P O W E R O F F 2 F M 2 A 3 P H O N O 3 O F F 4 AUX Y C 4 B 5 A B A M r M l l l PHONO AUX b 6 ob A 5 Powen indicaion ...

Page 12: ...esponse become reduced sx 750 lF Amplifier and Detector Comprise 2 dual element ceramic filters sistor and 1 IC integrated circuit HA1137 circuit is illustrated in Fig 2 FM lF Amplifier and DetectorCircuit Three dual element ceramic filters an IC HA1201 containing a differential amplifier and an IC HA1137 containing a 3 stage limiter amplifier compose the FM IF amplifier Fig 2 shows the HA1137 blo...

Page 13: ...s the lamp lights and the switch becomes on The switching signalis applied to the demodulator 3 Demodulator This is a switching circuit employing two dif ferential amplifiers Fig a Q1 and Q2 are altemately switched on and off by the switch Com0osit siFel ing signal The composite signal is amplified at Q3 switched and demodulated Q6 and QB are Ioosely coupled at their emitters by R1 R3 QG is driven...

Page 14: ...onophonic is provided in addition to the phono equalizerampli fier A selector switch cuts the AUX jack input when a plug is inserted into the MIC jack The amplified microphone signal is then supplied to both the left and right channels The FUNCTION switch is set to the AUX position when using a microphone FunctionSW B Lch AUX Fis 7 5 6 TONE CONTROL CR type tone controls are connected to an ex trem...

Page 15: ...and R18 and Q6 is kept in the off state during this time When the power source is switched off the muting operation of Qb prevents shock noise In the normal condition the potentials of 33 volts and 5 1 volts are applied to Qb through RL4 and R15 The resultant poten tial at the base of Q5 is 1 volt in the cutout condition When the power supply is turned off PoY er amplifier 0Yer current and overloa...

Page 16: ...ver current andOverloadDetectionCircuit FiS 12 Equivalent Circuitof sx 75cl 5 8 POWER AMPLIFIERCIRCUIT Composed of differential first stage all stages direct coupled pure complementary OCL circuit Open gain at lkHz is approximately 80dB and NFB amount is approximately 50dB R3 and R4 are provided with this circuit in order to obtain adequate stability evenwith the NFB disconnected Ql form a differe...

Page 17: ... core for maximum reading on AC voltmeter 7 Set SX 750 dial indication and AM SG fre quency for 1 400kH2 8 Adjust TCz for maximum reading on AC voltmeter 9 Set AM SG for 30dB output 10 Set SX 750 dial indication and AM SG fre quency for 600kHz 11 Adjust T8 and bar antenna core for maximum reading on AC voltmeter 12 Set SX 750 dial indication and AM SG fre quency for 1 400kH2 13 Adjust TCz TC4 for ...

Page 18: ...Set FM SG output to 100dB and adjust TC6 for muimum indication on Signal meter 11 Set FM SG output to 8 10dB and adjustTC1 TC3 TC5 and TC6 for maximum indication on Signalmeter 12 Repeat above adjustment steps 5 11 and adjust for optimum conditions 13 Tune FM SG and SX 750 to dial readingsof 90MHz 14 Adjust T5 core for maximum indication on Signal meter L5 Detune SX 750 to noiseonly 16 Adjust T6 f...

Page 19: ... probe to the oscilloscope vertical input 5 Adjust VR2 so that lissajous pattern displayed on oscilloscope becomesstationary Fig 16 6 Set MPX SG to 67 5kHz deviation at lkHz for left and right channels and to 7 1kHz deviation for 19kHz pilot signal 7 Adjust T5 core for minimurn audio frequency distortion Take care to turn core only within t180 8 Adju st VR3 for minimum signalleakagefrom R channel ...

Page 20: ...minimum fully counter clockwise 3 Turn VRl and VR2 shown in Fig 17 fully counter clockwise then set POWER switch to oN 4 1 2 minutes after tuming on the power adjust VR3 L channel and VR4 R channel for 50mV indication on DC voltmeter 5 20 minutes after turning on the power again adjust VR1 and VR2 for 30mV indication on DC voltmeter Eix 7E cl F i g 1 7 2 1 ...

Page 21: ...d cord two tums around tuning drum and tie to spring hook so that tension is applied to the cord 7 Turn TUNING knob and confirm normal cord motion then trim off excesscord 8 With tuning drum at step 1 setting restrain cord from moving and slip dial pointer on cord Align it with the starting point extrenne left end of frequency scale Dial pulley Dial shaft Dial Pointer InstallationCaution Metal por...

Page 22: ...8 LEVEL DIAGRAM Power amp 21 5V 8Q 2 5mV PH0N0 23 ...

Page 23: ...d right total 4 screws to remove Bottomp161s Fig 20 Takeout screwse to remove Front Panel Fig 21 Pull off all knobs and remove shaft nuts of SPEAK ERS and FUNCTION switches Front panel can then be removed by taking out screws six 7scl Fis 19 Fis 20 Fig 21 7 X 24 ...

Page 24: ...ATION 10 1 FRONT PANEL VIEW Phonelack Headphone AKN OlO Knob SPEAKERS AAB l OO Front panelassembly ANB 421 Knob TONE AAD OI3 Knob HIGH FILTEF AAD O13 Knob BASS r AAB O99 Knob TREBLE AAB G 9 Knob BALANCE i AAB O99 ...

Page 25: ...1 TUNING Aii A 036 iack MlC AKN O13 Knob FUNCTION AAB lOO TAPE MONITOR FMMUTING AAD 112 AAD OI3 DUPLICATE AAD O13 MODEI AAD O13 LOUDNESS ...

Page 26: ...uble meter AAW O4O Dialpointer assembly AAF O48 I Fhone jack Headphones A K N O 1 O Rorary switch sPEA KERS ASA O38 Lever switch TONE ASK 09O L e v e r s w i t c h H I G HF I I T E R ASK 090 Variable resistor BASS ACV 138 Variable resistor TREBLE A C V 1 3 8 Variable resistor BALANCE A C V 1 3 5 ...

Page 27: ... AXA 124 assemDty Knob FlMl 4UTlNG A A D l1 2 JK I t Phone jack MlC A K N 0 1 3 Rotaryswitch FuNcTloN ASD O49 Leverswitch TAPEl lON ITOR A S K 1 0 2 Lever switch DUPLTCATE ASK 092 Leverswitch l 4O DE ASK 09O Lever switchiLouDN ESS ASK 09O Variable resistor VOLUI 1E A C V 1 7 9 BALANCE ...

Page 28: ...if ier assembly AWH O46 Powersupply Protection assembly AWR O99 Powertransfomer 4TT 264 Ku model ATT 301 KC model Electrolyticcapacitor ACH 057 Pully A E C 1 5 3 Lamp assembly AE L 060 Acrylicboard A E C2 5 1 Lampass AEL 060 ...

Page 29: ...Tuner AF controlassembly AWE O73 r t lf I ffh t l t qt r Tuningdrumassembly AXA O7O Filter muting assemtlly AWtvt 094 Tuning shaftassembly A X A 1 2 4 Lamp assemllly AE L 060 Lamp assembly AE L 06O ard ...

Page 30: ...10 4 BOTTOM _ l Tonecontrol assembly AWG O46 fir il l Jl Rotaryswitch SPEAKER ASA 038 Cover Capaciter a I Power trans omer AIT 264 Powersupplyassembly AWR I OO Power amplif ierassembly AWH 046 ...

Page 31: ...Tonecontrolassembly AWG 046 l r l l l J l h l d l f L l sx 75c Tuner AF controlassembly AWE O73 l Y I ft ...

Page 32: ...10 5 REARVIEW Ferritebarantenna AXB OO4 slide switch DE EM ASH 0l5 Terminal ANTENNA AKA OO2 Terminal INPUT AKB 027 Terminal TAPE1 AK8 027 Terminat TAPE2 AKB 027 REC PB connector socket 5P AKP OO7 ...

Page 33: ...r ides ritch DE EMPHASIS ASH 015 REC PB connectorsocket 5P AKP OOT Woodencabinet AMM 053 AC socketcover AC power cord ADG OO5 Terminal SPEAKER AKE O29 ...

Page 34: ... ABA t i PNRTIV on page 40 1 n Screw ABA OO2 WasherlV11 822 009 N u t M 1 1 871 005 Knob SPEAKERS FUNCTION AAB 1OO 6 Washer ANF 453 Knob BASS TREBLE BLANCE AAB 099 K obGASS TREBLE BLANCE AAB O99 J A Front panelassembly ANB 421 Knob VOLUME AAB 1OO KnobITUNING AAA 036 Knob SPEAKERS FUNCTTON AAB 1OO Knob TONE HIGHFILTER AAD 113 I I l r i t ABA X9 ...

Page 35: ...pplied Woodencabinet AMM 053 4x15 1 3 Screw ABA OO2 PARTVII on page43 Screw ABAi0O2 Screw4x1 ABA 113 q Screw ABA 1 r ANB 421 KE BS FUNCTION FILTER Front panelassembly Screw ABA 012 Foot AEC 083 Washer ANF 453 Screw ABA O12 Screw ABA O12 Foot ABA O12 Screw ABA 012 AEC 083 ...

Page 36: ...cboard AEC 25 l H T Dialpanel AAG l14 Screw3x6 ABA O48I Screw3xo ABA 048 g Lampaisembly AEL O6O Tuningshaftassembly AXA 124 Screw3x6 ABA 104 Lampwith wire AEL O69 Spacer M9xlt M45 086 Nut a71 004 Screw3x6 ABA O48 Lampholdei AEB O Lampwith wire AEL O68 Lampwith wire AEL O66 A B c D A c D ...

Page 37: ...ansformer ATT 2O4 KU model ATT 301 KCmodel Powertransformer mountingholder Terminalstrip 2P NutM4 ABN O13 Scrarv 3xG ABA 048 Fuse holder 1P P AKR F2 Screw3x6 G r r L r n l t e r r rn u l 4 P ABA F6 Fuse AEK lOO Scrai 3x6 ABA O48 Gfound terrnrna 4P shi r r plu A B c D A B c ...

Page 38: ...B 541 R Insulator wafer AEC 076 Transistorsocket AKH OOl Transistor 25D388 R lnsulatorwafer AEC 076 Screw ABA OO2 F Screw3x8 ABA O81 Screw ABA OO2 Connection cablehousing ADX 025 Screw ABA OO2 Poweramplifierassembly AWH O46 Connection cable housing ADX 026 Connection cablehousing ADX O25 A A B B c c D D ...

Page 39: ...nnot be supplied Screw3x6 ABA O48 Screw 3x6 ABA O48 Screrv3x6 ABA 048 a A Screw3x6 ABA O48 Screw 3x6 s Power supPlY assembly AWR 1m ABA O ABA O E P C Board mounting plate E Screw 3x6 ABA O48 Powersupply protection assembly AWR 099 A B c D A B c D 40 ...

Page 40: ... 9 Variabte resistor VOLUME ACV 179 Variableresistor BALANCE ACV 135 Washer ABE OOI os v Screw3x6 ABA O48 o Phonejack MlC Tuning drumassembly AXA OTO Rotary switch FUNCTION ASD 049 Nut 801 004 AKN 013 a Knob FMMUTING AAO 112 L6 er s vitch LOUDN ESS ASK O90 Pushsr itch FM MUTING ASG 097 Leverswitch MODE ASK O9O Leverswitch DUPLICATE ASK 092 Leversuitch TAPEMONITOR ASK 102 A A B B c c D D ...

Page 41: ...eentype cannot be supplied Screw3xo ABA O G o rdterminall2Pr Headphoneiack assembly AWX 106 Specialnut ABN 018 Tone control assemblv AWG X6 e 2 ir o i Screw 2 sz g l ABA oo2 Lq d Dial pointer ass mbly AAF 0 l8 Nylon sheet A B c D A B c D ...

Page 42: ...nits in the SX 60 serieswhich do not contain green line encircled cobponents this is not an error AC power cord ADG OO5 Strainrelief AEC 079 Screw3x10 ABA 082 r1 I B I I T Screw ABA OO2 Y T Screwfor ground AKE O17 AC socket OUTLETS AKP OO4 Amplifierassembly AWK O65 Terminal antenna AKA OO2 A B c D A B c D 43 ...

Page 43: ...11 8 PACKING Operati ng instructions A R B 1 7 4 FM T typeantenna ADH OO2 six 7E cl Sidepad A H A 1 1 2 Packingcase AHD 357 KU model AHD 358 KC modell Vinyl bag EI1 O24 ...

Page 44: ...Q f n t1 ffi310 r r r o r iouoness I 9 T ON 3 TONE 4 9E 0N 5 HIGH F ILTER 9 E oN S FM I IUTING 0N OFF UNLESS OTHERW SE NOTED K KO P P F L PHOl l0r d R il 4E VR4 BAl AilCE COTTRoL L rVRs TLUI IE S rrRoL l l lvRsl RELAY SF EAI EB PO JER OFF S P A SP OFF S P B SP 6 3 OE EI1PHASIS 5A 13 uF 2 7K lorrrrl36Pl LeiEl4 LLj E STGNAL LTAGE NEcEssARy FoRoBTATNTNG 56vEo ourpur poyvEn ilK Hz V 0C V0LTAQE AT N0 T...

Page 45: ...J sro J ffi iL t_ Q Qr 25tX 0xe i6 o PLe0v5onA rx0 R S o o PLr Ah Pl s Fm PLsProm Pl r AUX 3V 38rA pqlrt0N INOICATOR Ev nA x Ssl rti R 2K r rr rr niEJffit nm d i I I l rtKtt rur crlqfi 0s OslSl88Fll xz go iins T 1 l I E JA S h Ds lSl0EO x 06 ss SR3Afl Ex 44 3 T P 2 T fr r rl 19 l_gtgasrq s s r o o l r_ __ _ J 33v E or as2SC945 l RllR 8V 3 iAr3 s F tztq v D r D C n i o 2SC 3Cxz SIV4 xz i__ a_ _1 Ln...

Page 46: ...Part No PLl PL2 PL3 PL4 PL5 PL6 PL7 PL8 PL9 Lamp assembly BV 0 34 Lamp assembly 8V O 34 Lamp assembly 8V 0 3A Lamp with leads 8V SOmA Lamp with leads 8V 50mA Lamp with leads 8V 5OmA Lamp with leads 8V 50mA amp with leads 8V 50mA Lamp with leads BV 50mA AEL O60 AEL O6O AEL O6O AEL 064 AEL O68 AEL 066 AEL 067 AEL 069 AEL 069 FUSES Symbol Description Part No FUl FU2 FU3 FU4 FU5 Fuse1 5A Fuse0 5A Fuse...

Page 47: ...12 3 INTERNAL CIRCUITRY OF INTEGRATED CIRCUITS HAl 137 FM tF tc lt l _ i HA1138 AMtC I t l i t_ 1 9 1 l HA 48 ...

Page 48: ...6P1 2SA823 2SC945A 2SC1438 2SC1647 2SC1649 TA7061AP TA 7136P1 258541 2SD38B E r1h 51 2S8507 2SD3 13 c E c B E c B H A l 1 3 7 H A 11 3 8 H A 11 9 6 2SC46 1 2SC535 2SC1344 HA1201 258527 2SD357 c D 3sK45 o G t ryE 2SA798 49 B l C t E Be 2sc1166 ffi g 2sK3oA s 2sA725 Fi 2 3 4 5 6 7 ...

Page 49: ...12 4 FILTER MUTINGASSEMBLY AWM 094 I I A L AWE 073 No 29 AWE 073 No 44 AWH 046No 28 19V AWG 046 No 7 19V AWE 073 No 22 No 32 ...

Page 50: ...k Carbonf ilm 10k Carbonfilm 75k Carbon film 24k Carbonfilm 180 Carbonfilm 4 3k Carbonfilm 150k Carbon f ilm 150k Carbonfilm Ik Carbonf ilm 150k RD PS91 1J RDTaPS 91 1J RD PS 242J RD PS 242J RD PS 1O2J RD PS513J RDy PS 154J RDY PS 1O3J RD PS753J RD PS 243J RDz4PS 181J RD74PS432J RD PS154J RD PS 154J RDz4PS1O2J RD PS 154J CAPACITORS Symbol D scription Part No c1 c2 c3 c4 c5 c6 c7 Efectrolytic 2 2 2...

Page 51: ... i b t 1i h ll l T b l I slill I srtvl l l ll i i iii lrrarpr I so nrrrrJ Rr22X l J ot I diln onm L R o o tt l 5 5 0 R 5 t NDsIX Cx 0 0056 o l Crr0 056 ql ic Tos27 c o3 llfi t o t o I ir r l _is l R2 6 lK o I r p I jf l r l I c 20oor2t il l o H l J il I Cn 0 001 t q F l _ 9 o mzrT I I l l llr AWH 046 No 21 21V ...

Page 52: ...2 R3 R4 R5 R6 R7 R8 R9 R 1 0 R11 R12 R 1 3 R 1 4 R 1 5 R l 6 R17 R l 8 R l 9 R20 R21 R22 R23 R24 R25 R26 R27 R28 R29 R30 Carbonfilm 2 2k Carbonfilm 2 2k Carbonfilm 180k Carbonf ilm 180k Carbon film 1O0 Carbon film 1O0 Carbonf ilm 2 7k Carbon film 2 7k Carbonfilm 100k Carbon f ilm 100k Carbonfilm 47k Carbon film 47k Carbonf ilm 51k Carbonf ilm 51k Carbon film 27Ok Carbonfilm 27Ok Carbon film 24k Ca...

Page 53: ...o q r o 6 o r o 2 o t N d S 3 t d o E z_ d o a 6 U J 6 _ g g A r o 9 9 1 c r an d E u S 9 d z l L L c h o ct c c l 7 t S I t C C S tt 9 o ct J _ ar 00tr u dlN 001 r r dt a GI d d t r cl o o q s d 3 a S 6 l f _s t lS 90ctu E E 1f 3 l t A c D A B c D ...

Page 54: ...1 I 046 No 2 AWG 0 16No 7 _19vlj AWE 073 trto 3a _19t AwM 094 No l tgvlt AwRq AWR 099 No 4 AwG 046 No 8 21V AwE 073 No 33 21V AwR 100 No 7 41v f 5 L o AWR 099 No l1 ...

Page 55: ...I AWG 046 No 2 AWG 046No 7 19V AwE 073 No 34 19V AwM 094 No l 19V AWR 099 No 23 099 No 1 3O AWG 046 No 1 cl 75Cl to 41vlT AwE 100 No 6 rs J 7 ii i t AwR oeeNo 8 t l AWR 099 No 8 o2 41V 5El ...

Page 56: ...und O 5 Wirewound 0 5 Wirewound 0 5 w w w w w w w w 5W 5W 5W RS1 P 561K RS1 P 561K RD PS 56lU RD PS 564J RD PS222J RD PS222J RDZnPS 563J RD PS 563J RD74PS 563J RDy PS563J RD PS2O2J RD PS2O2J RD PS 182J RD PS 182J RD PS 112J RDz PS 112J RD74PS 273J RD 4PS 273J RD PS 392J RDI PS 392J RDYIPS 101J RD74PS 101J RD PSF 151J RD PSF 151J RD PSF 151J RD PSF 151J RD PSF 1O U RD PSF lOOJ RD PSF lOOJ RD PSF lO...

Page 57: ... B c D 2 2 A B c D 12 7 POWER SUPPLY PROTECTION ASSEMBLY AWR 099 l L_ l OrH o G q t lfl rtt au U ro tI u c o t N a C d ttt l d 3 O o o ct an l d 6 a ao C qt d 9 o q I I C 4 d N r o Q o o Yo a 9 N o d 5A ...

Page 58: ...AWE 073 No 18 AWH 046 No 33 AWR I00 No 12 V AWH 046 No 29 37V AWR 100No 13 zl8V AWH 046No 16 AWH 046 No 6 AWH 046 No l1 AWH 046 No l AWX 106 No 2 AWR Im No l5 AWH O46 No 22 AWX I06 No 1 AWH 046 No 36 ...

Page 59: ...Efx 7scl AWE 073 AWE O73 AWE O73 No 26 13V No 9 13V No 24 AWX 106 No 4 sl0 bF I P E A K E R o U T A R c h AWX 106 No 3 I t i l t P E A K E R A L ...

Page 60: ...s R36 R3 7 Carbonf ilm 82 Carbon film 20k Carbonf ilm 15k Carbonf ilm 15k Carbonf ilm 150k Carbonf ilm 15k Carbonfilm 15k Carbonf ilm 15k Carbonf ilm 150k Carbonf ilm 8 2k Carbon f ilm 3 3k Carbon film 6Bk Carbonf ilm 47 Metal oxide 22O Wire wound 150 Carbonfilm 27k Carbonf ilm 22k Carbonf ilm 3 9k Carbonf ilm 33 Carbonfilm 3 3k Carbonf ilm 1k Carbonf ilm 1k Carbonf ilm 1k 1 W 5W Y V l RDZaPS820J ...

Page 61: ...AC lsv I 2 l 0 r 5 l 4 4 E t2 4tv l3 18V 1 4lv 9 E 3 E 6 tltv AWR_099 No 18 48V l 12 r AWR 099 No 16 48V I AWE 073 No 4 6Vl 1 3 1 4 I 7 6 4 3 t t h I qnwx oao No lo No 41v1 I L o r 6 No b No 2o 41V 0r Os lSlEtSrr C r C s 0 0 1x l BR 82 ...

Page 62: ...Symbol Description Part No R 1 R2 Metal oxide 4 7k 2W Metal oxide 4 7k 2W RS2P 472K RS2P 472K CAPACITORS Symbol Description Part No c1 c2 c3 c4 c5 c6 c7 Efectrolytic 47O 10V Electrolytic 0 01 250V Electrolytic 0 01 250V Electrolytic O 01 250V Electrolytic 0 01 250V Electrolytic 0 01 250V Efectrolytic 0 01 25OV cEA 471P 10 ACG 001 ACG 001 ACG 001 ACG 001 ACG 001 ACG 001 OTHERS Symbol Description Pa...

Page 63: ...S AWR 099 No 2 AWR 099 No l POWER IND SlGb F t JPEAKER A our Lch 1 2 SPEAKER Aour R If l o PartsList of Headphones JackAssembly AWX I06 RESISTORS Symbol Dolcription Prrt No R1 R2 R3 It etal oxido ll letaloxide Carbonfilm 150 vN 150 ZN 27 RS2P 151J RS2P 151J RDY PS 27OJ 64 ...

Page 64: ...l rB l3Y ll SICML6ETEFIO r 2 8 x 9 IF KLIIR OJI22 AH INPUT 21 AT ANT 23 H a sr 2F o cr t t t t t l F I tI o o For units in which amplifier assembly is used in place of IC Q9 Q10 indicated by red line seePage 3 AWK 065 TA7136P 2 l _ f crNTER lrrE l i L_____ J 7 2 w t 1 5 t 4 _ 1 3 r i l r 0 I t z T a s 6 8 ln 2 2s 66 ...

Page 65: ...5 fill DU I I3 VCOKItLIR 30 FMSJGNAT NTTTR OI I F H S I G N A LI I I I R I N R tui T0 Ii NE C0NIROLAssy 0NIRol A i Ast Alitl 0 c1 l fq o lux Prm Fl A 1coir P NtTtoti unP 1 6 1 5 1 4 1 3 t 2 t r 16 rs t4_13 12 to 9 l 2 3 4 S 5 I 8 E 5r L rb 66 rl rr REC rxtl mc not R C H A I I F T ...

Page 66: ... l ibr I I I 4 l l l a 9_rgr_j 4o o33 ry 35 36 I o o 9 ss l j r f o l1 9 f ry_ r a c ial I o sg llo frFr ri rl I r 0 4 tl b l o q q jl zozFd bivr1 cn os H l kdh 4 t s in Tmffi c 35tP d F l i l Ji v Lg E _ 1 itk y iffio sr9 u ffi p ozpff o i q t s d F i ji il x flifh I u dF ol ffr AWM 094 No 1 19 AWG 046 No 7 19V AWH_046 No 28 _19V AWX 095 No 3 39 AWX 095 No l 40 AWX 095 No 2 41 AWX 095 No 4 42 TP2...

Page 67: ...l l l r r a f l l l I I l r l l t q k l l l FrL T o t i e e 6 2 A 1 T l rr o o o 17 t5 15 28 27 i 1 t II ffi 32 t 22 AWM 094 No 3 STEREO PL8 tl l R5z a k _ AWR 099 TUNINGMETER F 13i rcr 37 __1 277 F M 75s2 FM 300sl G N D J l 1 1 P1 l mTl T f l ii l rrffxfl r l ff u T o 9 S I G N A LM E T E R ...

Page 68: ... ilter FM Ceramicf ilter FM Ceramicfilter AM Ceramicfilter RF Chokecoil 2 2pH RF Chokecoil 2 2ttH RF Choke coil 2 2pH RF Chokecoil 2 2p H Chokecoil 18pH RF Choke coil 2 21tH RF Choke coil 2 2p H ATB 01 3 ATF O13 ATF O13 ATF O13 ATF O27 T24 O2a T24 028 r24 028 T24 O2A ATH OO7 T24 028 T24 O28 RESISTORS Symbol Description Part No R 1 a2 R3 R4 R5 R6 R 7 R8 R9 R 1 0 R 1 1 R12 R 1 3 F t 5 R 1 6 R 1 7 R ...

Page 69: ...22J RD PS 122J RDZ4PS1O4J RD PS 1O4J RDI 4PS334J RD PS113J RD PM 183J RD7 PS913J Symbol Description Part No R92 R93 R94 R95 R96 R97 R98 R99 R1 0 0 R1 0 1 R 1 0 2 R1 0 3 R104 R105 R1 0 6 R1 0 7 R1 0 8 R109 R 1 1 0 R 1 1 1 R87 R88 R89 R90 R9 1 Carbonfilm 560 Carbonf ilm 15k Carbon film 47O Carbonf ilm 1k Carbonf ilm 2 2k Carbon film 2 2k Carbon f ilm 2 2k Carbon f ilm 2 2k Carbonf ilm 2 2k Carbonfil...

Page 70: ...50 CKDYF103250 c s z A 0 R t M 3 5 CKDYF103250 CKDYF103250 CKDYF 4032sO CKDYF 403250 CKDYF103250 ccDsl 151 K5 0 ccDSL 470K 50 CKDYF 403250 CKDBC 47 3 2 2 5 cKDBC47 3 2 2 5 cEA 100P16 Symbol Description Part No c81 c82 c83 c84 c85 c86 c88 c89 c90 c91 c92 c93 c94 c95 c96 c97 c98 c99 c100 c101 c l02 c103 c104 c105 c106 c107 c108 c109 c 11 0 c1 t1 cl12 c l 1 3 cl14 a 1 1 E c 11 6 vc1 TC6 Ceramic 5p 50...

Page 71: ...Symbol Description Part No Nut Washer Screw 871 004 ABE OO1 ABA 121 sx 75cl 72 ...

Page 72: ...sistor Transistor Transistor 2SA725 G 25A640 E 2SA725 G 254640 El 2SC1313 G 2SA726 G 2SAg0 El RESISTORS Symbol Dorcription Part No R1 R2 R3 R4 R5 R6 Carbonfilm 150k Carbonfilm 6 2k Carbonfilm 6 2k Carbonfilm 33k Carbon film 13k Carbonfilm 4 7k RDI VS15 UNL RD7 VS622J RDZTVS 622J RD rVS 333J RDZ VS133J ROV VS472J CAPACITORS Symbol Description Part No c1 c2 c3 Ceramic 47p 50v 50v 10v Ceramic 10p Ele...

Page 73: ...SIS SWITCHASSEMBLY AWX Ogs PartsList of DeomphasisSwitch Assembly AWX O9S 9mbol Dercription Pert No c1 c2 Slideswitch DE EMPHASISI ilylar capcitor 0 fi 12 50V lVlylarcpcitor 0 0012 50V ASH OI5 coMA 122J50 coMA 122J50 ...

Page 74: ...REO RECEIVER sX 750 H G S ART 185 O Additional JoruicMnanl This leaflet provides the description of the parts applies only to the HG S model For detailed please refer to the Service Manual of SX_750 KC KU PIoNeER ...

Page 75: ...m 2 1 De emphasis Switch Assembly AWX 100 2 3 Exploded View 5 7 I 1 1 1 3 1 4 Type Voltage Remarks KC KU 1 2 0 V o n l y CSA Canada and UL U S A approved with de emphasis selectorswitch 25rrsl75 js H G 22OY and 240V Switchable 110V 12OV 22OVand 240V Switchabte SEl 4KO Sweden NEMKO Norway DEMKO Denmark and El Finland approved Generalexport model with de emphasis selector switch 25psl50 s 75ps I ...

Page 76: ...MM 053 Terminal antenna page43 2 D block AKA OO7 AKA OO2 AKA OO2 PowerTransformer page38 2 A block ATT 325 ATT 324 4TT 264 KU ATT 301 KC Fuse FU1 page 46 4 Bblock AEK 405 1 6A A E K 1 0 4 1 5 A A E K 1 0 4 1 5 A Fuse FU2 page 46 4 Ablock AEK 401 500mA AEK 107 500mA AEK 107 500mA Fuse FU3 FU4 page 46 4 A block AEK 031 800mA AEK 111 800mA A E K 1 1 1 8 0 0 m A FuseFU5 page 46 5 Ablock AEK 403 2 5A 1...

Page 77: ...C4 page46 5 A block ACG 001 ACG 001 KU ACG 003 KC AC PowerCord page 43 2 Ablock ADG OO2 ADG OOS Operating Instructions page44 ARB 184 English ARD 094 German French A R B 1 8 1 A R B 1 7 4 Specifications HG S KU KC PowerRequirements 22OV 24OV 50Hz 110V 120V 220V 24OV 50 60H2 12OV 60Hz Power Consumption 430W 350W Max 350W ...

Page 78: ... s p B S PA r 0 ACVOLTAOE SETECTOR 240V 220V Sro Srr L t K t I L RESISTORS fN 0Hl 1 l 4Y1 5 o TORELANCE CAPACITORS tN 0F UNLESS 0T ERW SE NoTED NOT ES El stGNAL v0LTAGE NEcEssARy FoRoBrAtNrNG s6vEe ouTpuT por EnrKHz V 0C V0trAGEAT N0 INPUTSIGNAL NA OCCURRIENT AT NO INPUTSIoNAL ru E or6oL A A owe o UNLESS OTHERWISE NOTED P P F 1 oflons 2 t io r t36Pl 1 b E_3 1 Clt20 35 crro r cl oelSlSSFl l xz h 1 ...

Page 79: ... o I J d o qt Rr2 lX i Dr 0r I tSt53 8 jfi o rnlL X r 3 _i l r d 2ror ir 3ALI CE a l F i l I I PLr I r I _l l 5 g t r r l v Ff llE 25B50t 0v5onl IERINO VRro 25o S r o S 2 i o o o rr l M P L s c r Pl6 PH0N0 DLI AUX Qr Qr 2S03t8xr F S r o u fcstTi0N N0rCArCR l SonA x 9 o l N q 5 O oo o 3 ft o U R3 rco I f Rro l 2 i i teH rf r r I l9Y90rA ...

Page 80: ...SSEMBLY AWR I16I AC 7 5V I 2 l 0 1 i ru r et i FUz 500rnA l 5 l 4 4 E l2 48v FUg 80OmA rst8E5 FUc 800rnA lSl8E8 x C z C s 0 0 1r c De Dg SR3AI 1 8 x n C e C g w t 0 0 1 x a Rr4 lK 2W 1 4lV 9 E 3 E 6 4lv R24tK 2W t_ Cz N Cr ...

Page 81: ...or SIB O1 O2 151886 or SIB 01 02 SR3AM 8 SR3AM 8 SR3AM 8 SR3AM 8 RESISTORS Symbol D6criptaon Part No R1 R2 Metal oxide 4 7k ZN Metal oxids 4 7k Vt t RS2P 472K RS2P472K Symbol Dercription Part No c1 c2 c3 c4 c5 c6 c7 c8 c9 Efectrolytic 47O Ceramic 0 01 Ceramic 0 01 Ceramic 0 Ol Ceramic 0 01 Ceramic 0 01 Ceramic O Ol Ceramic 0 O1 Ceramic 0 01 10v 250V 250V 250V 250V 250V 250V 250V 250V cEA 4 71P10 A...

Page 82: ...cated by designation and part numbers are newly employed in the HG model The parts without description are the sameas the parts in the K model Screw ABA OO2 Screw ABA 057 3 9 Y T I g Screw ABA O57 Line voltageselector AKX 037 2 3 3 A B c A c D ...

Page 83: ...g r r _ 4 DUPTICAT E 0H t100E SIEREO noNO RESISTORS Ss L0UDNESS Sro OFF 0N Ss TONE 0FF 0N S HIOI I FILTER OFF _ ON S SO Ft 4I1UTING 0N OFf Srz Ss RELAY SPEAKER POWER OFF S P A S P O F F S P B S P 6 n g DE ETlPHASIS 2 S 5 S tA FUSE HOLDER 1 r 0 v t 0v 3pJ 240V lN OHr l 4 W r 5 7 0 T OREL ANCEUNL ESS OT HERWISENOTED K KO l l M fl CAPACITORS lN u F UNL ESS OT IERWISENOT ED P p F N O T E S fI STGNALv0...

Page 84: ...Cl64 xr 2SAt23 0r zSCil66 a E n l D l R12lt D r D q l S l 5 5 4 x c 11 Y Qti tct 10s r 1 d 3 2sor T 3At NCE JO ITR L r V R 5 I tUME ONTROL 8 r b t E rsi i b VRtu I Oor qn SBsCft I l 5 7o f tr o RIIR PLr DIALtrrtltil NATE 8v 3snA t3 PLe0v50nA ER INO R S t o o o l L f L d Po R a np lssT AlrH b16 I o A o SPEAKER A lffi sol VRr I o 25or Ir s l q p9e ril 9 I I X C O L E t9Y30rA rn 1 2 ...

Page 85: ... 073 No 42 AWE 073 No 41 AWE 073 No 39 Symbol Description Part No s1 c1 c2 c3 c4 Slideswitch DE EMPHASISI Polystyrene capacitor560p 50V Polystyrene capacitor560p 50V Mylarcapacitor 0 0O1250V Mylarcapacitor 0 0012 50V ASH O17 cosA 561J50 cosA 561J50 coMA 122J50 coMA 122J50 1 3 ...

Page 86: ...IEW The parts indicated by designation and part numbers are newly employed in the S model The parts without description are the sameas the parts in the K model g Screw ABA OO2 AC powercord ADG OO2 Linevoltageselector AKR O33 1 4 ...

Page 87: ...I ELECTFIONICS COFIPGIFIATIGIN 75 Oxfond Dnive Ivloonachie New Jensey O7O74 U S A PIGINEEFT ELECTFIC NIC EIJFIG PEI N V Luithagen Haven9 2O3O Antwenp Belgium PIGINEEFT ELECTHCINICS AIJEiTFIALIA TY LTEI 17A 184 Boundany Fload Bnaeside Victonia 3195 Austnalia O J U L Y 1 9 7 6 Printedin Japan 76F02Y01 K ...

Page 88: ...ASSEMB LY AWG 046 in point of voltagevalue Please replacethe original P C Boardby the onesprovidedbelow AwE 073 No 34 19V1 AWM 094No l 19V AWH 046 No 28 19V1 AWE 073 No 33 21V WH 046 No 30 I r AWH 046 No 27 l wE 073 No 15 I I I Al AwE 073 No 16 r r t r t l 1 2 3 4 5 6 AWH 046No 21 21V ...

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