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Summary of Contents for R-50

Page 1: ... 2 INTERNALVIEW 3 DISASSEMBLYPROCEDURES 3 ADJUSTMENTS 4 6 PRINTED CIRCUIT BOARD 7 8 SCHEMATICDIAGRAM 9 BLOCKDIAGRAM 9 PARTSLTST 10 19 SINCEI8 7 YAMAHA NIPPON GAKKI CO LTD HAMAMATSU JAPAN Printed in Japan 83 3 2 5k 474 lll P D F i l l P D F E d i t o r w i t h F r e e W r i t e r a n d T o o l s P D F i l l P D F E d i t o r w i t h F r e e W r i t e r a n d T o o l s ...

Page 2: ...eo lkHz 0 15 Harmonic Distortion l4OkHz Devl Stereo lkHz 0 15 G lkHz 4OdB 30Hz to 15kHz 1 5 Frequenry Response 20Hz to 100kHz Aux Tape 3dB RIAA Equalization Deviation Phono lo sdB Total Harmonic Distortion 513 to 1620kHz G A B 510 to 1620kHz or Aux Tape to SP Out 1W8o 0 008 t ntermodulation Distortion US Canadian Models General Model European Model 120V AC 60Hz 110 120V ACl220 240V AC 50 60H2 22OV...

Page 3: ...itish Australian models v European model ATTEilTloi milo r o t20 eeo aao vcE lmwAre solaoHz rpto c fir co uD O o 2 P D F i l l P D F E d i t o r w i t h F r e e W r i t e r a n d T o o l s P D F i l l P D F E d i t o r w i t h F r e e W r i t e r a n d T o o l s ...

Page 4: ...EcrRoLYTrc cAP 68oopF 46V otooe BRTDGE s4vB2o or RB4O2or 4D4841 eu roor ANTENNA rnorur END PAcK tr tC ttPC577H E Fl eowen swrrcH nowen tc STK 4873 unrru ctRcutr BoARD 1 uex lc LA338o urcno coNPUTER rc LC65o2c 604 rururruc coNTRoLLER tc LC721o Cup Screw 4x8 FNM3 3g Binding Head Tapping Screw 3xB FCRM3 B Binding Head Tapping Removing Heat Sink Binding Head Tapping Screw 3x8 FCBM3 BQ Screw 3x8 FCM3 B...

Page 5: ...NVcc Auxiliary center meter o Measu ring inslruments abbreviation FM SG SSG AM SG OSC DIST M FC ACVM FM signal generator Stereo signal generator AM signal generator Oscilloscope Distortion meter Frequency counter AC volt meter oSet the switches to the following positions INPUT TUNER BandSelect FM TUNING MODE AUTO VOLUME Min 4 Step Adiustment item Connection terminal tnstrument required Adiustment ...

Page 6: ...liary cente meter FM SG l 98MHz i lkHz I l roac t 15 2dBfll VR103 FM FINE By shorting TEST terminals the counter shifts by one digit then adiust so that the lowest effective digit comes to I or 0 r This figure I 8O O g8 0MHz 1 79 E When shifting After adiust ing open the TEST termi nals 10 lf offset adiust ment 300a FM ANT TEST termi nals K4 T6 FM SG 98MHztlkHz I zoaeu 75 2d8f Short TUNING SW UP o...

Page 7: ... seconds J Press the PRESET Pl during the Memory indicator lights l The PRESET LED of Pl lights Press the AM button and tuned the 1080kHz with AUTO seach Press the Memory button 1 The Memory indicator lights and the PBESET LED of Pl flash6s T PrCSS thE PRESET P2 1 The Memory indicator goes out and the PRE SET LED of P2 lights 2 Last channel memory confir mation POWER SW O Press the PRESET Pl Turn ...

Page 8: ...C BOAfrO t ll5 TUN_UI _G TUNING MODE MEMORY FMAM DOWN To MAIN C 0ARS llS MA Tq MAIN C B0ARD l 61 From i lAlN C BOARD 116 Frorn MAIN C BOARD il 6 3 c g L i r o Jc 3c o 3 r vc tE i Eu 8a IL 0q Main C Board 14l6l Main C Board l2l6l SPEAKERS AB oFFI OFF ON ON 7 SPEAKERS Fr m MAIN C B0ARD l16 To MAIN C B0ARDt316l P D F i l l P D F E d i t o r w i t h F r e e W r i t e r a n d T o o l s P D F i l l P D ...

Page 9: ...PDFill PDF Editor with Free W riter and Tools PDFill PDF Editor with Free W riter and Tools ...

Page 10: ...FG i44144 70 o o47 uF sOV c237 234 259 262 G t44 42i20 o o22pF sOV c215 216 264 265 FH 2 41 ioo o o rF soov c1 86 1 20 22pF sOV cl76 177 I 19 21 ioo 1 OOpF 50v cro9 r 10 G 21i31ioo IOOOpF sOV c143 1 52 1 60 FG 121i24i70 47OpF 50v c1 53 FG 21 134 70 47OOpF 5OV cl14 117 114 22i 41 iOO O Ol rF 25V c I 02 1 04 1 3 I 1 34 1 37 144 la5 r6t r69 r8 2rt I 22i41 iOO o olrF 25V c1 55 G I 22 42120 o o22uF 25V...

Page 11: ... 07 1 08 3E 30 io4 iso lnductor lmH t2yrr L t 04 105 3E 30 i05 roo 12 pH Lt 03 1 06 3E 30 O5 10 12O pH L1 01 3E i90 i06 90 8 2mH Ll 02 GE 1O r02 i80 FM Discriminator Coil cE1 0028 FMi l 7rt a1 v I102 GE 10 06i50 FM IFT GE1 0065 F M IFT T1 01 GE 20 o4 30 Anti birdie Filter 1 1 4kqz 7 ur 71 71rW T1 03 GG iOO iO4 i20 AM Ceramic Discriminator 3DA4sOA AM s i yri I 7 u lF1 04 iG ioo io6 i2o FM Ceramic F...

Page 12: ...1 3 3 1 4 HF 85 a4 70 47OkO il R1 59 1 90 206 295 367 HF 85 88 20 82OkO il R309 31 0 HF 85 91 iOO lMO il R197 251 261 264 31 5 31 6 HG 30 92 20 2 2MA RDsOS R373 U C HL 71 34 70 Metal oxide Film Resistot 4 7 a 1P fl8 frt R345 346 349 350 HL 7 51 50 150fi lP R355 HL 7 52 20 220a 1P R371 372 HL 72 45 60 55 2P R363 364 HL 33 53 90 3900 3P R356 HU 57 81 o0 Metal Film Resistor 100ko fElfrtrff flt R217 H...

Page 13: ... t HZ12C2 D127 H OO o8 o Dictdo Bridgo lB4B4t 1zl frt vY D134 H iOO iO8 70 il 4D49 1 otit i o n nn o H iOO o 40 il RB4O2 LFD t H OO o i90 s4vB20 iG oo 12 70 tc TC IO66BP c rcl10 I lnterchanoeable ts o8 92 iOO t LCrtOo6B iG oo 13 gO t NJM4558DV t rc103 iG i02 92i20 t43380 t tc104 G i03 i45 ioo rPC577H E R tc 101 102 G io4 11 ioo t M544591 tc105 G lo4 isl ioo 1C7210 t tc107 G O8 ior i00 LC781 5 t rc...

Page 14: ...oi 23i 2 P 7 5 3P i Type R U A C B LA oo 25i 7c Pi7 5 0 3P i Type G LB 20 13i 9C 2 5 Pitch Base Pin TE82P SHF 2 5 t vA 78 B 20 t8 80 Fuse Holder Pin PC FH1 E a b vr C B 92i 10140 Connector Plug 4P i Type a 2r rr B 92 10i 50 5P i Type B 92 10i60 6P1i Type B 92 10 80 8P i Type B 92 ro 90 9P i Type NA o8 10 80 AM Coil Pack AMf fw t y2 AA 61 70i r0 Sealed Plate 40x30 tv li ffi AA 61 69i 90 60x30 BA 08...

Page 15: ...I EXPIODED VIEW All over brM G VN M rt xJ_ G nerol modsl d tD P D F i l l P D F E d i t o r w i t h F r e e W r i t e r a n d T o o l s ...

Page 16: ...i rtl yzt CB tOll27l f LA iooi29 5 Ez rhrVr ACTrlv yl 6 A250V 2 m 7 5A250v 2 5m 2 5A250V 2 m 6 A300 500V 2 m l0A l25V 1 98m l0Al25v 2m NAiO8il6i NA i08i16i NA O8r16i60 NAiOS 16i70 NAi08i16i80 NA i08i16i90 y2t71y au7 t hrr T2A 25 V AA i61i64iOO AA i61 i64i10 AA i61i64 20 B EX t A A A A IA A A 1 A x New Parts filtf P D F i l l P D F E d i t o r w i t h F r e e W r i t e r a n d T o o l s ...

Page 17: ...2 1rr772t1 _ S ill t va91l Y 7 lu i 19 7 ts r7r vrU4 Y I nr772t1 _ 8911 i aav2 y l x r r i t 7 wf 122 a Y 9 l f f E fi Ass Y FMQ vU7 iU w av 7 x New Parts frn e l7 P D F i l l P D F E d i t o r w i t h F r e e W r i t e r a n d T o o l s ...

Page 18: ...t u 5 AX i60 ioo i50 Spring Button SUS3O4CSPH f9 rt INPUT 6 Ax i6O oo i60 u n PRESET 7 cB i61 73 i80 Button Silver d I TUNER t cB i61 74i2O t Black t It I CB i61 73 i90 tt Silver vtDEo AUX il CB i61 74i30 t Black n It I CB 61 74iOO il Silver PHONO t CB i6 I 4 40 t Black t t 10 cB i61 74 o t Silver TAPE MONITOR il cB 61 74 50 t Black t t 11 cB i61 i73 i40 It Silver PRESET il cB i61 73 50 t Black t ...

Page 19: ...eenl A 500 iF ooi42 70 t SLR s5URC3H t Red n iF ooi45 50 tt SLR 34MC3H il Green iF ooioo 40 Diode ts1555 1 F D1 5 iA i09i37 oo Transistor 2SA937 lr zt TR1 _3 iG o4i94 oo tc L81274 tc l lnterchangeable il M54527P It J ReplacedbylC 181274 ix 60i14 70 t M54560P il iF iOOi44 10 Frequency Display LC 205MK N Etf frt Silver iF ioor44i20 t LC 2O5MK B tt Black x New Parts trf ile t9 P D F i l l P D F E d i...

Page 20: ...t R 50 YAMAHA P D F i l l P D F E d i t o r w i t h F r e e W r i t e r a n d T o o l s ...

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