Pioneer HGW4 User's Manual
Contents
1. 1 oN ASL 8 le i LL 1 8 jen den ek RIEGO 1 H IC FM r T d e L ss 300 S 3 E BALANCE R e THE ser aND ab 4 Wi 3 38 592 Ries 47 m 49 AM 1 JY 1 Ls Wy Lu Bet 88 Am 0 1 Cs 1 OF Q fv 3 e ae ij Sr Guo 256461 8 Cm 14V i 8 Cie Q eh C t 6 iL 5 FK ep OD 33K 100P Zi 1 8 a eeh M t l t he 5 AM SWITCHES Si FUNCTION Ss LOUDNESS AM ON 2 FM 3 PHONO Ss SPEAKER 4 AUX OFF ON S TAPE MONITOR 1 MEE OFF ON AGE 5 POWER S4 TAPE MONITOR 2 OFF ON OFF ON TUNING SIGNAL Sa LINE VOLTAGE SELECTOR METER Sa FM MUTE MODE JN STEREJ JFF MONO RESISTORS IN OHM 1 4W 25 TOLERANCE UNLESS Ei 1 TOLERANL E CAPACITORS IN UNLESS OTHERWISE NOTED pF SIGNAL VOLTAGE AT 20w 20W 9 2 OUTPUT kHz V 0 VOLTAGE AT NO INPUT SIGNAL lt m DC CURRENT AT NO INPUT SIGNAL DC VOLTAGE AT 00 QUTPUT 5 5 the basic schematic diagram but the actual 220V 240V OTHERWISE NOTED L ch b PHONO Circuit may var que Lo improvements in design 2 5 mv For Service Manuals Contact TRON2. mt A roo ADDITIONAL Q PIONEER 6 91 AM FM STEREO RECEIVER HGW4 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 2o mmm m EENEG iir PIONEER ELECTRONIC CORPORATION 4 1 Meguro 1 Crome Meguro ku Tokyo 153 U S PIONEER ELECTRONICS CORPORATION 85 Ox xtord Orve Moonacne New Jersey 7210724 5 PIONEER ELECTRONIC EUROPE N V Luntnagen maven S 2030 Antwerp Begum PIONEER ELECTRONICS AUSTRAUA PTY LTO 75 184 36 Road Brasse Mu Le 31998 Aostroana lt ART 303 0 gt OAPR 1978 Printed in Japan lt 78DOIYSHO gt MODEL SX 680 COMES IN FOUR VERSIONS DISTINGUISHED AS FOLLOWS KU 120V only U S A model KC 120V only Canada model 110V 120V 220V and 240V Switchable General export mode 110V 120V 220V and 240V Switchable U S Military modei MODEL SX 690 COMES IN THREE VERSIONS DISTINGUISHED AS FOLLOWS Type Voltage Remarks KU 120V only U S A model 220V and 240V Switchable United Kingdom model 4 220V and 240 Switchable e This additional service manual is applicable to the SX 690 HG HGW4 Connections set handl ing circuitry and adjustment are basically the same as SX
3. JO RC po d ps Significant figures Decimal point i 8 TEIL Significant figures Decimal point Ex 1 5 1 5 62 10 22 5 110 1k 1000 1 56k 1560 10k 10000 33 6k 33600 112k 112000 1M 1000000 1 56M 1560000 Ex 2 For DODO Codes General resistors Significant figures Multiplier 10X Resistors with fractional values Ek Significant figures Ex 2 ORO Decimal point Resistance Nominal resistance Significant figure Multiplier i n two figures 10X value code 05 1 5 1 22 330 1k 1000 5 6k 5600 68k 68000 820k 820000 1M 1000000 2 2M 2200000 EE Gg E MOS D M M 19 5 A amt t PR SX 690 HG HGW4 2 3 FM FRONT END GWB 102 35859 296535 D 0 ky Ver Ter Ca 38V 56 4 TC 1 3 VI 3 ag i RN ge Copa Io e e V 101 CH S L4 38 mC 0 ISP A 318 E 12D 201 SIE e aS 161 F Q D un Rise 217 Hu ae 3 a i50 io KT 8 4 0 01 SA C103 al 2 Le Hu f 22H 18K 118 i 190P 05 E For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844
4. Cn Tor SI 318 8 exi 6 X op u O G E E E n e A E DEE 10 E For Service Manuals Contact MAURITRON TECHNICAL SERVICES Oxon OX9 4QY 01844 351694 Fax 01844 352554 enquiries mauntron co uk b 8 Cherry Tree Rd Chinnor Tel inu p82ejJ8USe M inu VOIun 2 1 Auis 394205 1 lt lt uondiasaQ 220 87 8 COZ HNY vLO H 3YV ON Hed soso 090 620020 900 0 0 ZOvd Lora 60 0 poca 0 8080 5080 050 2090 cord 0 ZOLG 0565 0 2090 090 10 0 POED 020 2085 LOED 5025 00 9095 25050 9020 5020 ZOZO 0 60 80 0 90 SU 6 275 0 joquiAS 080 2 1 0 2 05 OZC ZW 9515 225 0 L ZM 0 2 0 8 WVEuHS 50 10815 5301 05 O L ZW LIZA LZ 51 885 51 985551 LPZSI 9 0551 Q 2 5 455 29 40 052 B 10 55 40 6 3 40 O ELEGSZ 0 40 6 8 40 D 10 2 2 5 40 6 3 007 LOSZ 30 7 L6LLVH 3 40 3 0S2VSZ 4 40 O S9eL VSS 3 40 8 499 35 ON Meg SYOLINGNOSINAS MC CCO PUNOM JIM ISEH 60 80 0 99 0 SCH 8LEH SIEH CCEH LECH 96
5. v 9LH OZ H 6L H 95 uondiaose JOquiAS O 0 NOV OOO disu f OOD 4 rooo 5 434 30000 OS Nu f OOD f DOO Sd aug ON ASA BOZ 1 906 CvSH 0 8691 05 0 50213 8 9 EZEN 6222 6020 vOZH 10ZU 591 9 99 5 5 6 2 981 3 7 5 ZOSHA 3WNTOA LOSHA SSV8 3183H L ZO HA LO HA AML p8xjj ruues LHA uondiusseg R joquAS 240 2 SD Ou 1 006 ay 21140134 1 pun apod OJU 21112 4 Y 4421102 520 91524 Sui143p40 1 209 LSLO 13 ZVLD 2 0 vlS2 0 3099 5 9052 5 POSS 0 91 6912 GSLO Sivo 3645902513 pled 0 8055 90 458 50 0 0 2 2 0 2150 6055 20 2 02 05 0 9912 POL 6912 8503 vS12 6v12 89 3 9 3 90 58 pL 0 13 GL 913 BELO ELO EELO 2515 IELO 912 0912 6812 8610 13 912 SECO 0 2 0 R joquiAS M M eA INC DUU Sd au OOD Sa au f QOO Saray OOD 0 52902 6 0 0 98 3 150 262 DN 58045153 SC 40 232 OS divy 2 05 8000 232 St dlOl v32 SC dL uv 2 05 rez VWOO OS ALEE OS dcHC 3 OS JEE 7 OS r1 2 S 4555 5 Z80 HOV SZ dlOl v32 OS diZZ 2 St 0 6 0
6. T Bs 4 1 l E A 2SC1919 x ERR 9 2SC945A MINES 25A733 9 one wa AUX L ri Am n m M Ha Rigs FM 41 56K 5 4 R vi m Rm 1 m 50 0 au 418 m D viu nm i le SE o MZ SH gt DI vso 7 Sy 3008 CONTROL Kai Agal am TM Van nl e ee e E suu 17 OF ar DIAL ILLUMINATE LAMP 8v Aen A 3 i RA 78 432 AN Fans 5 Gel 2 n1 2473 64 3 du 9000 an eum 47 WwW Cm lt 5 Va 1241 Rass 5 27K 2 f 1w Cer 2241 730V 3 SV Hap 4 4 SR3AM 8 x4 a 7 1 60mA t 60 56 4 Si d yw 152473 FA 1 im 2 3 Se 24555 ds Q4 1 Sik 15 551 MENT Kn MI vx OW M CR Keck 3 7 Rei jw RIS me duxi TK 330 ree i P 3 Leg ce mod i 130K Ue n Rat Ma 192473 CP lw P 7 et P anv Ba 25 79812 Cw 0 ux T Veg Ban VA 75 8 on CP XP 2 wo o Se a SX 690 HG HGW4 NOTE The indicated semiconductors are representative ones only Other alternative semiconductors may be used and are
7. 2 SCHEMATIC DIAGRAMS P C I 1 2 1 SCHEMATIC DIAGRAM For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk sk o e eme EE Tem wu e FM FRONT ENO Ass y GWB 102 M VM o O A TE 03 E sk af L 300 St 3 ge BALANCE Sp 26 TO 0 is 3 31K Se ne 3 s 198 M IE i an 4 NET l Xim Cur Bet h CS N ee AM pes SWITCHES S FUNCTION Ss LOUDNESS JEFF ON 2 FM d 3 PHONO Sg SPEAKER 4 SPEAKER 8 5 TAPE MONITOR S POWER S4 TAPE MONITOR 2 OFF ON OFF ON TUNING SIGNAL Se LINE VOLTAGE SELECTOR S4 FM MUTE MODE MOV 240V JN STEREJ JFF MONG NER P RESISTORS 53 IN OHM 1 4W 25 TOLERANCE UNLESS OTHERWISE NOTED e od BY 21 TOLERANCE CAPACITORS IN UNLESS OTHERWISE NOTED pF X SIGNAL VOLTAGE AT 30W 2 32 OUTPUT V VOLTAGE AT NO INPUT SIGNAL lt gt OC CURRENT AT NO INPUT SIGNAL L ch YW OC VOLTAGE AT 20 OUT
8. 29 151555 3 AM BN wel t S sos Sor 2501919 a2 o BE Hai lu 2SC9454A Paks 5 i WII 5 i Ze 1 31919 x4 Sg 25 733 Ge fn e AUX L 5Px2 3 RIAK AI MA 1 a 759V em 8 FM 8 Rige end 8 E 5 7 510 5 7 e 24 Cm 152473 3 X v Le MZ 130 daa MZ 220 pel Asa 320K CONTROL dE OK O oC see Vi 4 l 2SKM7 8 a 8 im d M 220p Um Kal Arx Jan qum cam 48 af menge 28 RC APE RED Osog sos n Wr cu RB i Duer GRNI 307 TEREO RED a 9 dus AEL 308 bieten 3 7 Rend R Sch Sege cer TAPE REC PLAY PLAY REC 262 u 8 Rh 30 1 TAPE MONITOR 2 For Service Manuals Contact MAURITRON TECHNICAL SERVICES THE QUALITY OF gt 8 Cherry Tree Rd Chinnor THIS PAGE IS Oxon OX9 4QY THE BEST THAT Tel 01844 351684 Fax 01844 352554 IS AVAILABLE Email enquiries mauritron co uk TAPE Ass y GWX 8 vie AEN 204
9. 7 3 Du Q3 8 2587 1 5 ET Qs den T Las 00P 2SA733 d m 55 08 1 2501919 X4 561 25 72582 Ga Sage Ras XK 83 10 TOK m D 1 Roos 15 se 0 Rios Rm Cans 41 35 X PK 7 M TITEL IN SQ FINKA Bang Can Alen Fm R 13 360 2459 ASV C IOP a rige Raw ai Rm PHONO R CN 100K Ux 150x 20K op TTA DONNE A 1 TP TP Ga Lued L Rasis 7X Cus 0 5 f Pic Ries f ye d a Ges e 33 903 5 Ta F 2 DEE sc cl SVO DOLI MES 4432 2SC1384 d 45 E n TP C ete m Daos 35 NS 152472 Cal oss K 250712 Gant CL 140mA pa Daos 1 EN d 62 140 5 8 3001 TA 3 o For Service Manuals Contac MAURITRON TECHNICAL DNK 8 Cherry Tree Rd Chinnor SR3AM 8 x4 1 50 1 m 56 4 5 306 152473 2 Cigs E 9 01 0 w53 990 1504 low EJ zem ecg Lyo 24 125 Om 8995 5 8 2501919 2 e 35 2506945 A Dee 294733 cus a DDR 106 209 X4 Cin 0 01 Cnm 5 7 x2 8 2320 Han AK HX o
10. 9 dizz 0 600 D2v 05 WEBS 27 08 22 8AQ 2 9 dicc v32 OS 2001 2 91 4026 23 05 3080 22 OS AZZZ 3 OS 423 OS 2281 21 OS 2128 80 9 NBH9 OS 0 23 OS 5 9 OS 87 VWDO 9t 0122 0 9i 2122 0 05 2020 9 05 ZOE 0 05 00 3 ON Hed LOYO SZLO SEED 90 9 883 1 7 OLED 65 2 85 3 LIED 9200 2 IED 5553 LIED BLED LIED SLED SLED 2125 LIED OLED 6060 8053 S0C2 vOCO 0 9915 3 8912 2 5512 1210 6 BILD OZED 61255 5912 2813 225 0 SELD ELD 82 8913 2910 0215 9 20 3 VICO 2 PLEO ELEO OLZO 2 9182 5153 OLSD 6093 8052 3 9052 0 20202 3 182 LLS 2120 vOZO 3272 552 5552 ZOZO 0 012258 JOGWAS 8 v 5882 3 5 usnd eng LS 5 SS3NOnO 3 310 W3 3700IN SS 5 1 HOLINOW 30 1 usnd eng ES ZS NOILONf 3 AB apis IS uondisa 1012npui GINN 95 oso We 439 Wd 348 ZH SSP 21 8482 WY 4 48 45 31 292 Wo 3 13 uondidi2seg 91 d0Lt VI 0S d H 5 DL 0 2 OS FELZ 23 08 2 05 0 05 8 05 0 OS NOS 9 St 005 232 9 8055 v32 OS lt 0 2 OS 2099 27 91 0001 3232 05 2849 00 05 2 SE 232 OS FEOL VOD OS TOL 23 05 0 000 OS 206 VDD OS F
11. 033 CAPACITOR Part Name RESISTOR Part No Symbol Part Name SX 680 KU SX 690 HG SX 690 HGW4 C2 Cermic 0 01 ACEO d EE FUSES TPN SX 680 KU SX 690 HG SX 690 HGW4 Fuse 4A AEK 100 Fuse 2A FU2 Fuse 1 5A Fuse 1 6A AEK 405 AEK 405 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 4 Email enquiries mauritron co uk SX 680 KU Fuse 5A AEK 108 Fuse 5A SX 690 HG X 690 HGW4 Fuse 5 Fuse 5A AEK 015 AEK 015 Fuse 1A AEK 402 AEK 402 Fuse 1A AEK 402 AEK 402 OTHERS Symbol Part Name SX 680 KU SX 690 HG SX 690 HGW4 PACKING Symbol AC power cord ADG 023 AC socket OUTLET AC socket INLET Fuse holder 1P Panel mount coaxial connector Capacitor cover for C1 Capacitor cover for C2 Bonnet Top plate Side panel L Side panel R Front panel Dial scale board Part Name Operating instructions English German French Packing case Vinyl bag for AC cord AEC 294 AEC 279 AMM 071 ANB 596 AAG 158 ARB 268 AHD 551 AHG 023 AKP 008 K91 008 AKP 016 AEC 099 ANE 202 AMS 031 AMS 032 ANB 600 AAG 160 Part No ARB 276 AKP 008 K91 008 AKP 016 AEC 099 ANE 202 AMS 029 AMS 030 ANB 600 AAG 160 SX 680 KU SX 690 HG SX 690 HGW4 ARB 276 ARD 122 AHD 559 a
12. 680 KU The parts which are different from the SX 680 KU are covered in this additional service manual Please use this manual together with the SX 680 KU service manual which is previous ly issued when ordering parts and repair i Europe or Oceania model CONTENTS k CON TARAS s dun d o deer ACER 3 2 SCHEMATIC DIAGRAMS P C BOARD PATTERNS AND PARTS LIST 2 1 Schematic Diagram 5 2 2 Main Board Assembly GWM 120 7 2 3 FM Front end GWB 102 13 2 4 Tape Assembly 3 188 15 2 5 Fuse Holder Assembly GWX 190 15 y GX 690 HG HGW4 1 CONTRAST OF MISCELLANEOUS PART ASSEMBLIES Main Board Assembly Part No SX 690 HG SX 690 HGWA SX 680 KU GWM 117 GWM 120 GWM 120 GWX 180 o 0 tte Ie De emphasis Switch Assembly GWB 101 GWB 102 GWB 102 FM Front end GWX 186 GWX 188 GWX 188 Tape Assembly GWX 178 GWX 190 GWX 190 Fuse Holder Assembly TRANSFORMER Part No Symbol Part Name SX 680 KU SX 690 HG SX 690 HGW4 SWITCHES Part No SX 680 KU SX 690 HG SX 690 HGW4 Push switch POWER ASG 503 ASG 504 ASG 504 Plug in selector 1 0 AKX 057 AKX 057 Line voltage selector Part No Part Name SX 680 KU SX 690 HG SX 690 HGW4 i R1 Wire wound 47 SW ACN 033 ACN
13. 826 1 i Dam 152472 De een EH Get 062 0 2 day 4 a 0462 ry E 251384 047 7 5 e f i 464 rto Quay 8 tas mee p te a 49 Can adar ued b s 1 9 Rasa 7 cad 58 3AM o 0047 e Candor l a e For Service Manuals Contact ee aT gt y ezin O 8 Cherry Tree Rd Chinnor c Sa 45918 adr Oxon OX9 4QY p Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 3 E DE SEE OR En NE GU se E gt 0 ee Seduce LUN E Tae gt STK 0039 QU COMNIS A N ZUM l POWER IC STK 0039 9 Or 0 Us ve x inei au E MM E 37 a 8 4 5 E E 5 DEN CS 49 a RI anon Rar 2 9 d i 0 Os 206 IL 24 RIY O22 et ion SR da 0 0 0 9F 5 Qv EM dgio Kg 0 ow 264 T2 1K26 IKI 68k 46 5 6 LE CL 307 52473 52 on IS2473 87 IE l 42 41 40 e42 820K WI 4 6 ds a Ca EET 0 16 xe 5 1 4 Cag EI AUX R Cou 06 55 gt C Q 2SC46l 8 Ba 8 Cy 1 4 0 Rigs 100 V Bn Pa 4 aic 9 F 5 3 5 Leg 0 ii M
14. fx Pan BASS CONTROL MiK 25 LNB sary SOP L SPEAKER A R L SPEAKER B 2 2 M AIN BOARD ASSEMBLY GWM 120 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor 58 004 Oxon OX9 AQY Tol 01844 351694 Fax 01 844 352554 Email enquiries mauritron co uk CDA 9 65 ONE cay BOF De 1 Cie l IM 85 DD ao 3 tent ge KC CS 3 de Ca ss T0247 Pu e Ress 1 Rao Dans 152472 06 ka E PB COM d J 25Ci384 42 in MILES id C406 LS e 1 Cue 5 o car aoar SC OOT a a En D SR3AM 8 4 O 1 0405 1 3 9 1 Si 16 E Ban LL C H E 8 1 i R 0 omg KEE EE E EEGENEM Ee EV Zenn A Ans CAS mmozcw TUO DA Ge 251438 585 Doe e B x e 9 282 E 26 46 5 ebe Lar E m 4544 7 Ch 4C 42 Cut 70 4108 mas 7 Cin 3 JAD 9445 820 55653 5587 152473 2 2SK17 EORNM TO ZZ ge j 49 33 Cam c 4 fans
15. 1 0 pum 10 1 T7 d 0 4 ve l Rig Ch c Bei 3 wal 1 ET HITE Cu on F AM 151555 E E SIGNAL i Sue LLLI 5 3 e TE Q Y i 53 t L i TITRES 4 2501919 taal mM 9 3 ms 25 7258 17 Cm mp Rem OOK om 28 i 14 248 L n 3 3 EES MISES BEERS 60 TAPE RED 000 8 INDICATOR Ass y E source enn 8 301 GWX 177 Dwe STEREO RED ay 54 AEL 308 ag Om ETT Sa err du 1 44 e a Ain TAPE AREER Ls SEET eee n 10 SUN hia Bv 5 amet Ber 13K SM ME3 Ar Rm oro mm i A 4 gt i 2 192473 1 a PAIOOI A 16 1 4 YD rT Og lol M e A iP Rev P 25 125 25 724 EN E sacs D w i 2 P 8 197 LM iis 8 6 5 E o 8 Aw 150 das di 1 Lov 5 0 IN 10 310 Rise 234 5 5 i R n m cx 2 x2 GOK Seef g Lw TO AMOK Ee e m Gr Dm H ESSE v MMI Cu i 56
16. 1555 8 3 Sre S TUNING SIGNAL METER Se LINE VOLTAGE SELECTOR 220 240V E ESS OTHERWISE NOTED pF AUX 3 Ee Q 4 wath 1 QUTPUT AK Ap SO mV m 282 205 2068 2501919 cine Gen 25 725 cm mp Dt 1 E e L L ch m m 5 wm BE ES P 7 sh s PHONO 4 a u the aCtual 1S S i e99 e od R i le i 2 Ae Tag cf Jo 4 ESTR TEER EE o M mmm 3 PATTERNS AND PARTS LIST For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY 01844 351694 Fax 01844 35254 Email enquiries mauritron co uk 2SC1384 45 0 Ass 3 GWM 0 1 1 5 1 1 5 E Deca 5 182472 vm wal 250712 136 14 401 pau MZ 140 Ka 2 low Iis N 3 4 5 PA3001 A S IS 14 2 n Ben UK 4 10A Aus 7 cm ad EUN of TAN us aM de E 1 21v Trav Zei QN 0 a we M 5 di E on A ui LIU AN QR Le WE Si 62 co K 1 35 50 7 Do MEO Cu 1 Fa AM 151555 TE nh i 7 55 5
17. 352554 T PEL m er pm ge J 2K 12K d ae IE E i dee 0 01 Cuz ET ax M e aa d en Tore Rios 1K Cwr OR 92 a uw 256535 o 2 248 Ua o c Tuc ENIM LT sping 0 E 47 47 Sr VC2 6 2 R103 wor 3 L4 0 KEE Ves Tes 8 Coe 0 01 Lous pen QIK ui ur OOH OA 6 T RE Bap 35159 4 4 gt UY R166 39K o AM o 5 4 sue OP O Rta Ze toe 8 7 3 S 2 1 ie oe be amp 0 TE 13 Parts List of FM Front end GWB 102 COILS AND TRANSFORMERS Part No T24 028 T24 030 ATE 039 CAPACITORS Part No ACK 012 ACM 006 CCDUJ 120K 50 CCDSL 220K 50 CKDYF 1032 50 CCOUJ 150K 50 CCDSL 150K 50 CGB R47K 500 CCDPH 180K 50 CCDLH 080F 50 CCDCH 330K 50 CCDCH 150K 50 CCDSL 101K 50 RESISTORS Part No RD PS OCC J RDAVS OCS J Symbol amp Description L6 Choke coil 2 2uH L8 Choke coil 100uH T1 FM IFT Symbol amp Description VC Tuning capacitor TC3 Ceramic trimmer C101 C102 C103 C104 C107 C109 C115 C171 C105 C106 C110 C111 C112 C113 C114 C116 Note When ordering resistors convert the resistance value into code form and then rewrite the part no as before Symbol amp Description R101 R103 R107 8112 R113 R166 R167 R102 1 0
18. 8 1 SEMICONDUCTORS Part No 3SK59 Y or GR 2SC535 A or 8 2SC461 B or C 14 Symbol amp Description Q1 Q2 Q3 For Service Manuals Contact MAURITRON TECHNICAL SERVICES 8 Cherry Tree Rd Chinnor Oxon OX9 4QY Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 2 4 TAPE ASSEMBLY GWX 188 RB RC LC LB RD 9 REC PLAY PLAY REC Bch LL chJ Parts List Note When ordering resistors convert the OTHERS resistance value into code form and RESISTORS then rewrite the part no as before Part No Description Part No Symbol amp Description AKB 045 Terminal T APE 2 AKP 01 1 Connector socket REC PLAY RDAPS OOO J R601 R604 2 5 FUSE HOLDER ASSEMBLY GWX 190 FU2 I Fle 26 FUs TIA 2 s LEE FU3 FU4 TSA 8 Parts List For Service Manuals Contact MAURITRON TECHNICAL SERVICES Part No Description 8 Cherry Tree Rd Chinnor Oxon OX9 4QY i AKR 010 Fuse clip Tel 01844 351694 Fax 01844 352554 Email enquiries mauritron co uk 15
19. PUT This iS the basic schematic diagram but tne actual Circuit may vary dye to improvements in design 53 JIAGRAMS P C BOARD PATTERNS AND PAR THE QUALITY OF THIS PAGE 5 THE BEST THAT 15 AVAILABLE MAIN BOARD Ass y GWM 120 1 I PP SWB H 206 Qs 001 A t4 5 38V mad 4 5 X wi Ok Am 100 d aT Rr 8601 0 gt Res 453 10 253 92941 ug h nos 15 12 8 91 My 217 dS 25646 B ECH n SIP SE Ge OK _ 6 Hg 061 5 38 oo ake MA des a ae a 4 A eee 9 ci ED H de ne MNT 1 1 16 i 1 Kit iov bn 82 ICH 6 jov 56 Lu m 3 3 3 ki 20 45 3 28 2 PATOQ1 A i pur de t E 4 3 3 os ae tu 14 SEV 25V 25V OV Ca 4 508 22 NN 7 ION 6 3 Lo da 9 5 fs 159 as 119 7 7 f 46 eh Ss LOUDNESS aw K 2 1234 33 3 is ns 50 As 2 JN Lov a 1 Ov key ha Sg SPEAKER Ge Of Tie 198 Fus Walk coge jen DEE ON Kata Tie SE 4 SPEAKER 8 iw Sec 130 cT 0 ESE 2 POWER 24 AM 19
20. T TECHNICAL scar lit Tree Rd Chinnor Oxon OX8 4QY Fax 01844 352554 01844 351694 Email enquiries teg m R ch AUX Q E M 2 gt H MOV ee cm km E Re wt 001 r IP Ls Curr Am 400 93 eSC461 Ring 3 3K e o v Q 4 t 7 3 8 We 040 MEUS i ET 21 83 82 64 lov 3 4 Sa 58384 4 A 1 Case Rose 200 0 01 5 1 3 s Ae PAIOOt A Ss Ss R 1 55 5 R 2 Se IDE J JFF MONO TOLERANCE UNLESS ANLE ERWISE NOTED pF E AT 3 QUTPUT NU INPUT SIGNAL TNO INPUT SIGNAL T 30w OUTPUT matic diagram but the actual improvements in design LOUDNESS OFF ON SPEAKER QFF ON SPEAKER B OFF ON POWER OFF ON LINE VOLTAGE SELECTOR 220 240V OTHERWISE NOTED M MQ AUX L ch EN C 5 PHONO R ch AUX 7 19 S60 22 50 C n3 47 35 AM 22 18 2 sn La Vx Im 5 5 8 as 119 7 i 2888 i B Pos er S AV 24 C iew 4 73 2 0 5 M a
21. ZOE 22 OL 410 1 23 OS 34001 18022 SZ 4017 2 OS 2 05 164 67124 OS 18022 ON 3 54 580413 3 60 5 55 0 0 ON Weg S3HOLIMS CCO HLY 0 00 217 880 17 20 17 3 ON 5831 11 3 ANY OZL WMD Aquisssv paeog UN jo 151 53 54 ots rom L QURE 8 em ver Pus D CH 1 dr 4 AC E oe uL H Ho gt SAYS E Code E of resistors used in Pioneer equipment are expressed in the following way ey 2 Code number gt RD PS 473 J NL Type of resistor Power rating Shape tubuler Resistance code value Tolerance Low noise marking e Furthermore in the list of parts found in the Service Manual the resistance code value part of the above code number is expressed as OOO or DoOOG Resistors included in the Service Manual list of parts Ex RD 4 25 OOO JNL cid When ordering resistor components first ascer tain the actual resistance value from the circuit diagram and then convert it into code no form as shown in the following examples For further details on code numbers refer to Tuning Fork VOL 1 Ex 1 For Codes General resistors C Significant figures Multiplier 10X Resistors with fractional values m
22. e CN yR Daa MZ 130 3 3 VOLUME i SRI He s OP CONTROL G GH el 0 041 Gn 22 50 Rne PHONO R 150K 10K A Ss Zen 20K RIK 24K Mt Wi MM Cae 100P e SX 690 HG HGW4 77 58 EQ O D 2527 251384 Cioni 1 4 45V 8 Qus 39 3a 1062 2 192472 CH we Aal 2SD712 Ra 30V 0 4 7 8 SR3AM 1100 38 33 T 51 4 57 54 gt e Riso 03365 206 LG Ci 3 2K 52473 2 L f Aras 10K 490 2 1 P Ans 29 46 15 n 285 Rm 20 xT da Care 1 1 3 cd x Ce 1047 wie 5 m 50 fag 441 50 TOC 7 0 Y M Jc wT 2 UE ME Sx ja Ana 27K 2 S42 SCN ix Em 26 pM 253 Lag 22H m 1 REPRE Q cos sot 25 1919 2 je wl p EH 192473 3 2s 2a 47 220 Q STK 003935 R34 820K CONTROL et mm zm zm BALANCE LL ode VR CONTROL ETE CC M K 3385 304 2501438 x2 VR TREBLE CONTROL VR BASS CONTROL RK 2SKM 742
23. listed in the parts list BL DIAL iLLUMINATE LAMP FUSE HOLOER Ass y 8v 300 3 2 A 11 5 6 30 7 2 am 11 18 d Fur o m ET Q a ee RS ALU 4432 3041 4 BLU 2204 Pene 45 Rags FU a T 0 0 RN GRY Dag 39 a deg 3 521 10 2 2 M p 125 TN 3 Se Fu 8 0 220 192472 Wow Cwt AR ao AUS 5 E 0 d 25 AC ll we d L J GAN 240 250712 136 d vr e 50 60 Hz TE ua a 1 5 A4 b j om 1 147 140 4 ib WHT wt 3 RED 5 j Bb ere 50 1 Lf coma X 1 5 35 5 2 5 PHONES JACK Ass y SPEAKER B GWX 179 i 152473 2 HEAOPHONES R 1 93 7 35 d y 52 DOWER METER L ch THE QUALITY OF THIS PAGE 5 THE BEST THAT IS AVAILABLE gt NEE cm 325 4 3 Ma Ke ion EH ome an EE 2SC1919 x KA 25 pex 1 SE Or v KE 44 Be 5 Am ey MH 190 45 Uk 330 2 vm re PE T Dest gn Man 152473 2 26 Y Aus 4K 5 Saat as 5 wF 01 lg I Cw MZ 130 cus S VOLUME 54 m Te 2 QSTK 0039 CONTROL VR 3 a ZG am SALANLE AN CP ex OP i 9 us
24. ni r 3 00 IR T pee r 5 9 Daos t4 25 9V Tene 33K MZ 140 raat Jen 8x 5 Kan m unn i T MOLOER y TAM a 0 9 2 32 1 0 aod AT 0 SR3AM 8 x4 a 7 Die A e A 54 4 0 PHONES JACK Ass y gt E Gwx 118 i ee T 1 f vr 43 1 551 2n Ww i Rusin 8 i 0 DOWER METER 315 404 2516 7 2041 i 5 S Bee 2 3 3 U i POWER METER ux 253 a R Ch Lyn 21H lm 1 1 Jxi 0 261 x 4 W m w n See 100K lw VC f Cp ar 60 pa Zeg lt any 152473 I TE 25 79812 Co Ru i a MZ 220 Cw MZ 130 C vOLuME 47 lera Lowe e p Rear 320 6 ONTROL 16 4 d ws 45 15 35 9 256 jn ps o dp Ve AN ge TT 2 2 SIE t KM 0 Bai S iS 2 d 28 i SE o 5 654 QM P FP 4 5134 Ss a ei d TO EN t Be e 845 Q7 P 5 1 TX pare HENCE 3339 5 Ba o 0 zd E SONN x S Am Z i La we DK yu w 96 ux is mco Me 2561438 x INN 4 dag TDK Ze VR w TREBLE CONTROL 8 2 ds 2 o Wit
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