ERE0 POWER AMPLIFIER
Contents
1. ae a ea T rer 2 2 iu Sar Wisa F 10000 E nani was E A o MX 2000 VIEW 1 y as it grounds the circuit to screw securel Tighten this the chassis EM 3 E 32 Reor Shield From Frame Side Frame Reor Frome x mR 3i MX 2000 we fm Dei Sag Manes 972 5073910076 Binding Head Screw 356 80 43 00 n67 x4 m miolo amar 3 T h co im o oo I Le peine TEM a NE X F 386 EE BR Da 7 1 00 Cus e al ofen m w Cw pwimssm mm 797 roe 7 0 _ Ce pemism dene Cw miam 7T gt w ja T T ee 60 56 m mecme O asss TT so 00 es Binding Head Serow x6 rm vice Tl sr ex 00 eolew Head Tapping 2 LL lied Dus 1 Ri mue I Baden lm 1 du Nel end BDE ee adeo a miss2. i X New Parts JRA NR ISR35 100A HZ21 L I VIIJ WU 4 F 5FB20 FS FFT Remarks E 0308 311 327 D316 317 324 0304 307 RY301 302 2P X Se A gt 301 304 3 2 T30R 2754 2 3 F A E 17 CB305 306 308 309 CB307 changeable x 10000 MX 2000 Markets gt Ni MECHANISM PARTS VF 10124100 Top Cover Ass y A VF 01 25 00 VF 101 1261 00 e Front Panel Unit Wood Panel Wood Panel Holder F 5 4 VE 41 38 00 Top Cover Stay Barrier Round Head Wood Screw Main Circuit Board NA 109 94 50 CB 04 05 40 Wire Stopper Note Diameter Description 2 Remarks MI gt Model mm ky TDN Assy A e 7 2 y P X Vy F 7 3 4 2000 20 gt x U 3 1 16 ZMC2 Y gt PACK M 4 V xV U J X VF 47 70 00 Sheet TR E R jt X VF 32 99 00 Radiator Block TR Holder P C B BW Head Tapping Screw 2 S 2 RW Bw ET BWAY ko y 73 i 3x20 8 ZMC2 BI 3x8 8 FCRM3 BI 3x8 FCRM3 8l Ei 33 00 86 VF 33 101 00
3. Binding Head Tapping Screw Meter Meter Circuit Board r a gt Lamp Cap Lamp Unit BW Head Tapping Screw AC OUtlet x JL WHY TARY PACK u 9 e aS ow A 252r S Le BWAyKIYEYARY C C C C c cic O O VF 33 03 00 Rear Panel J PF WwW x wise ooo 2 7 ERME n za ma o u Great Board X 5 3 28 o oer Soy Grats 09 tae VF 4732100 Electrolytic Cap J KG D RUE Du 6 0001 Power R3 2 v 2 2 pj 7 nn TN 7 peisrim e 77 MEM kuwan a VF 90 98 00 Power Cord 15A 125 A VE 101131100 125V nn Ja NEL Ls 4 P C B Post Toothed Lock Washer 32 BW Head Screw 7 4x 10010 FCRM3 BI 36 VE 98 95 00 Pan Head Screw 4x5 AU 38 ED 03 01 06 Binding Head Screw 3x10 ZMC2 Y X New Parts 98348648 NR v E gt 7 3 VE 27 63 00 Ss EV 41 30 36 Bis B 3 FCRMS3 BI 4X 32 FCM3 BI 3X8 68 FNM3 3g B W w 2000 10000 4 Z FINE 2 E gt e ee
4. 205 206 211 C201 202 C213 214 C209 210 C229 C207 208 C203 204 C215 216 C212 C225 226 C230 231 gt uU Fat gt SR FTZLAYDUOREX 1 4 IOkQ 1 4W 68kQ 1 4W R203 204 470kQ 1 AW R277 284 4 72 14W RPE 2 4 HM R269 270 274 IO0 4w R257 264 220 1 820 4W 1509 1 4W 2200 1 4W 2700 1 4 3300 1 4W 3900 1 4 4700 1 40 5600 1 44 IQ 1 4W 1 5kQ 1 4W 2 2kD 1 4W 2 7kQ 1 4W 5 6kQ 1 4W IOkQ 4 4 70 2W hb E PA R235 236 267 268 R272 w lt R24 248 R207 208 2 R209 210 R287 288 gt R275 276 289 R211 271 R205 206 231 234 gt ES R265 266 R225 230 R286 R237 238 R273 R239 240 R249 256 N N wo 0 332 x gt t B3 3kQ VR201 2SA1349 GR BL 29C3381 GR BL 2SA970 GR BL 2SC2240 GR BL 2SA1145 0 Y 25 2705 0 Tafe k FOR 2 gt 2 x 0210 211 S 0203 207 223 Q204 206 208 M x MX 2000 Ref e Common No Description Remarks Markets iA 13 06 00 Pair Transistor 2SA1306 0 Y Q214 me Pair iC 132198100 2SC3298 0 Y 0213 _ VF 144179100 Pair FET 2505 lt F E T Q215 217 219 221 Q ei VF 44 80 00 2 J115 Q216 218 220 222 CIE gt gt
5. MX 2000 Parts List for Carbon Resistor sm ma 227 33 Gas 21573837 TE GDS nS Sas eee TEE me 7 384 150 884150 1364220 ee nn ae Ua wa ee oe 19S BE Mi a 1 uM Lue CT mm x mam oem mio mebi 270 C T 8 0 T 0 ET mar a 068470 18 DAN T 71 1 a ah aa I 6m 1 es oros wasono aze naa 8 orice we DANE ME TEOM ea SG F uw 1 9 a e V6 Type 38 Om nea a 01 00 B 1 7 eae 3 1 este oe 857100 MX2000U 20
6. 12 7 C315 316 VF 192 21 00 Metallized Cap x gt X 3 gt C32032l Coil 3 L301 302 arn La Carbon Resistor jJ gt En m I c o EN o 3 V Rh Of gt t an y Z 9 Ex J U C B ou M 3 x st R311 317 320 346 R319 340 345 R307 303 R308 310 R316 318 325 329 R327 328 R321 R343 344 Metal Oxide Film Resistor R341 342 Flame Proof Carbon Resistor 2 20 1 4W ARIE b zf gt 3 3k R302 305 2 H 7 7 B h R347 349 8326 i se ie iA 109170 00 Transistor gt XNew Parts 31382855 NR R348 302 305 307 3 y 306 308 310 i Q303 304 iF 00 00 40 Diode iF 00 06 70 152473 di iF 100 14 00 iH 100 14 30 iF 00 35 30 iX 55111 20 Diode Br N gt N 2 o o a VE 129 76 00 Relay LB 191 1801 20 LB 91 80 50 LB 91 80 60 lil amp 3 m Base Pin VF 49 93 00 Push Switch VE 180 85 00 Screw Terminal CB 81 85 40 Binding Tie BB 06 95 10 Land Metal Fitting VC 37 58 00 Terminal Plate BB 07 04 10 Bus Bar
7. DIRECT ERROR CORRECTION SECTION MAIN CIRCUIT BOARD Leh H C A POWER STAGE POWER TRANSFORMER U model XE669001 C model XE670001 MAIN CIRCUIT BOARD H C A POWER STAGE POWER SUPPLY CIRCUIT BOARD 2 OUTPUT COIL amp OUTPUT ERROR POWER SUPPLY CIRCUIT BOARD 1 POWER SUPPLY SECTION B1 B2 and B3 amp PROTECTION CIRCUIT SECTION METER CIRCUIT BOARD 1 DISASSEMBLY PROCEDURES Remove parts in disassembly order as numbered 1 Removal of Top Cover Ass y Remove 11 screws D Fig 1 2 Removal of Bottom Cover Remove 24 screws 2 in Fig 1 3 Removal of Wood Panel Ass y Remove 8 screws 3 in Fig 1 4 Removal of Front Panel Remove 4 screws 4 and plastic rivet 5 in Fig 1 ADJUSTMENTS Idling Adjustment 1 Remove the wood panel assembly 2 Adjust VR201 both L and R so that the voltage between test pins TP1 and TP2 in the main circuit board becomes DC60mV 590mV Main Circuit Board MX 2000 Top Cover C Top Cover B Fig 1 Meter Adjustment 1 Connect a dummy load 2 Adiust VR403 L ch and VR404 R ch so that meter indicator reads OW with no signal applied 3 Apply 1kHz sine wave signal to INPUT and set the signal level so that 28 3Vrms voltage is obtained at both ends of the dummy load 4 Adjust VR401 L ch and VR402 R ch so that the meter indicator reads TOOW 5 Recheck that the meter indicato
8. eee SE P opa Ch tere ee oe SE EN phas QI UN d aM ESED a 230 cvs RUP BR cxi BEEF Sek usss peu ome a SP dolo f la PN 0I uae darimw 14 32 var pere eme J mne 99 M TEES p ss B Ip MOT eer R O34 III OW ET een ef B 1 pp nee L B pew Osean 872 oss T E LI 255 9888 Bee 08 06668711 eeu FF 985 1 Paar emn ore IT _ pir iy 1 ITL t TT T TT U s s sme 21222212 tf C 7 7777 1 tre 9e 9m 1 EE hil omm 1 mee 7 om rt eL CL 1 TEES 1 em Tl TIED 24 EDT 1l 98e ed Tg 1 ri EN Na LI T A 0 2 88 TF C ossaa 05 4 551 Tite it n L 11 182 New Parts NR 19
9. iX 160142100 iE 10 45 00 iF 00 00 40 iF 00 06 70 iF 00 14 00 iF 00 30 40 iF 01 06 30 Parts Si 88 8 XN E 5 4 c uo o 79 o 2 e gt d X Input Circuit Board Mica Cap Polystyrene Electrolytic Cap Polypropylene Film Cap Electrolytic Cap Carbon Resistor Metal Oxide Film Resistor Meta Film Resistor Flame Proof Carbon Resistor Potentiometer Transistor FET Diode Zener Diode NR 22pF 500V 47pF 500V I00pF 68pF 22 25V 1000 nF 25V 820 uF 80V 0 022uF 50V 0 047 uF 100 1500 100V 0 047 uF 100 820uF 80V 47 uF 50V 1200 1 4W 3 30 1 40 2kQ 1 4W 1 5kQ 1 4W 1 4W IOkQ 1 4W I2kQ I 4W 1 4W 1 4 I00kQ 1 4W 220kQ 4W IMO 1 4 5 6kQ 2W 2200 1 4W 4700 1 4 I2kQ 1 4W 270 4W 680 4W 000 1 4W 1200 1 4 1500 1 4 gt 0 2SA970 GR BL 25 1815 25 2878 2SA1145 0 Y 2SC2705 0 Y 152473 HZ18 1L MTZ4 3B gt FEV 4 75 Ac gt yo F 35 4 782232 273188 4 7 x RI 3 7418733 BP hb gt BH gt gt pm M 5
10. 008 POWER SUPPLY 1 08 00022 2 n 08 00002 POWER SUPPLY 2 IOA 250V 10002193X 2 1006993X N 1008993X f Part No Description 09 93 80 Main Circuit Board Polypropylene Film Cap Mica Cap FZ 100 49 40 Mylar Cap Electrolytic 2 Polypropylene Film Cap 2 2 1 Electrolytic Cap 2 2 m Carbon Resistor 2 2 2 Flame Proof Carbon Resistor 2 2 2 2 2 2 2 2 2 2 HL 132 34 70 Metal Oxide Film Resistor VE 33 25 00 Wire Wound Resistor R il VB 86 13 00 Pre Set Potentiometer iA 13 49 00 Dual Transistor 2 Transistor 111145100 X New Parts 73825 NR WARNING Components having special characteristics are marked A and must be replaced with parts having specifications equal to those originally installed eCarbon resistors 1 6W or 1 4W are not included in the ELECTRICAL PARTS list For the parts No of the carbon resistor refer to p 20 Common Mode Bn m Markets gt NI om e 1 gt 7 3 x r M 0 luF 100 Q P 100pF 500V 75pF 500V 0 1uF 50V I00uF 6 3V 22uF 25V I0004F 80V 330pF 100V 1000pF 100V 3900 100V 5600pF 00V 0 047zF I00V 220uF 25V 47 uF 25V 33 uF I00V 4 7uF 100V LI gt C219 221 222 FE Tf 2353 gt 6227 228 C217 218 42 C223 224 79 27
11. 3 RRA Ky ee 2 2 A 4 7 7241 Remarks 109 112 127 130 101 102 105 106 C123 124 121 122 125 126 103 104 115 116 119 120 113 114 117 118 107 108 159 160 R137 138 157 158 163 164 173 174 179 180 8107 2110 141 161 162 165 172 175 176 RIT7 118 RI25 126 RI05 106 RI43 144 RI03 104 RI81 182 RI53 154 183 184 23 124 RI27 130 RI77 178 RI33 136 R149 152 VRIOI 102 QI037 106 113 114 0107 110 0121 122 127 130 0111 112 119 120 0115 118 0101 108 111 116 127 Inter Common Model changeable 0109 110 0133 136 Markets J e am e lt Fa gt o XA 42 60 01 IC NJM5532S Remarks Common Markets Model VF 80 39 00 Pin Jack 2 vy 2 nri VD 00 47 00 Base Pin 4P i Type P H lt E CBIOI VR Holder Binding Tie 2 141 MERE EREN 311 Power Cheah Board NA 09 94 20 Polypropylene Film Cap 301 304 Metallized Mylar Cap M C305 Electrolytic Cap 3 C31 314 AF MW 72v24 hta C317 Polypropylene Film Cap Z a 306 309 VG 19 63 00 Mylar Cap QO luF 100 7 4 A gt C323 324 Electrolytic Cap 7
12. NSION 5 7 8 MAIN IN TO SP OUT 130W 80 0 005 _ Signal to Noise Ratio IHF A Network MAIN IN Shorted 126dB Residual Noise IHF A Network 15uMV Channel Seperation ikHz Input Shorted Vol max 95dB Power Supply AC120V 60Hz 8 Power Consumption 580W AC Outlet 18 5 8 2 Switched x 1 600W max Dimension W x H x D 473 x 170 x 469mm 1 85 8 x 6 11 16 x18 16 E Unit neh Weight 28kg 61 Ibs 11 oz mm ee Specifications are subjact to change without notice U vim U S A Modei lt C Canadian Model x lt DIAGRAM i QI101 103 105 107 109 111 113 115 O 117 119 VEL EET INPUT MOS FET OUTPUT Q CONTROL VOLTAGE AMP H C A POWER STAGE 6 a RY3OI INPUT f oT oi 020 205 VRIOI CORRECTION 27 lt ee our 19206 223 0301 312 PROTECTION gn CIRCUIT 1 4 405 0405 406 409 40 RA Reh SPEAKERS Swaor __9 0308 31 METER PROTECTION 183 3 A B2 POWER OUTLET SWITCH VOLTAGE AMP E ee 600W 0304 3507 UNSWITCHEO POWER STAGE 0301 302 E MX 2000 VIEW e TOP VIEW am Am 2 2 1 D y 2 B _ lt ee p lt mes am q w Gum a w 3 e BOTTOM VIEW ELECTRICAL CAPACITOR 22000uF 80V x 2 INPUT CIRCUIT BOARD VOLTAGE AMP SECTION amp
13. Ni OEE amy vc 83 00 Diode su 77 F NL I Base Pin 5P i Type CB203 2P i Type 201 202 ee VF 152 32 00 Bas Bar 2 219 22 225 226 229 230 N VF 52133 00 eR CB 81 85 40 Binding Tie T30R fv any224 2111 EERE Meter Circuit Board UJ 14 72 20 UJ 46 63 30 63 VF 94 63 00 IQuF l6V C415 416 HU 157 57 50 Metal Film Resistor 7500 1 AW amp F AR RA453 454 HV 45 33 30 Flame Proof Carbon Resistor 1 4W ARBRE gt HR 517 522 HV 145152 70 2700 1 4W HV 145 161150 7 1 50 1 4W VB 85 95 00 Pre Set Potentiometer BQ VR4O1 402 VB 86 01 00 VR403 404 00 1 J gt 60 42 00 Transistor 2802878 Q405 406 409 410 iF 00 34 50 Diode 4 D405 416 420 423 iF 00 89 30 Zener Diode MTZI6A z 7 D403 404 iF 00 42 70 LED Red SLR 55URC3H D4177 419 iG 112 18 00 IC NJM4560S 401 402 iG 107 68 00 NJM4558S 403 404 iG 100 13 90 NJM4558DV IC405 VB 197 26 00 Thermister I0kQ DIN D103H4R TH401 402 LB 91 90 40 Base Pin 4P L Type 401 100 49 00 6P i Type 402 403 New Parts 41388854 NR 13 91010149 XW 14 MX 2000 FZ 100 64 10 VF 97 54 00 o TEEN ERES
14. STEREO POWER AMPLIFIER X2000 SERVICE MANUAL IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel It has been assumed that basic service procedures inherant to the industry and more specifically Yamaha Products are already known and understood by the users and have therefore not been restated WARNING Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury destruction of expensive components and failure of the product te perform as specified For these reasons we advise all Yamaha product owners 2 that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative IMPORTANT The presentation or sale of this to any individual or firm does not constitute authorization certification or recognition of any applicable technical capabilities or establish a principle agent relationship of any form The data provided is believed to be accurate and applicable to the unit s indicated on th cover The research engineering and service departments of Yamaha are continually striving to improve Yamaha products Modifications are therefore inevitable and specifications are subject to change without notice or obligation to r trofit Should any discrepancy appear to exist please contact the distributor s Service Division WARNING Static dischar
15. TRANSFORMER ISOmA 8V x3 8V x 3 SUPPLY 1 9 9 FROM POWER SUPPLY 1 1 7 parana SEEE 1 E METER F a mm METER Leh Meter Circuit Board 2 PROTECTION POWER SPEAKERS OFF TO MAIN L ch FROM POWER SUPPLY 1 7 2 lt o SUPPLY 2 9 A CIRCUIT BOARD Pattern side 1 Note Lm Component side Meter Circuit Board 1 Power Supply Circuit Board 3 FROM METER 1 2 Prem Er 2 aes 4 gt 44 SPEAKERS 3 Operation Check of input Circuit Board Alone Connect IN and E of board in going to R channel main circuit board of the input circuit board and IN and E of board in going to L channel one to sockets R RE LE and L which receive board in of the power circuit board 2 with wires Connect 60V power source to B2 E and B2 of board in going to the power supply circuit board 1 input Circuit Board and then connect EM terminal to 82 with 47kQ Input Circuit Board Circuit Board resistance included 1 TO MAIN RS 6 D oT TO M FROM MAIN RIGHT LEFT 74 Rech 27 2112 Super 193 m 5 ee wv ime 211 a f s e Tus el ES TO POWER SUPPLY WIRING N co H 5 amp V x 6 8 Out 85532 o METER 1 08 00022 2 n 08 00
16. ges can destroy expensive components Discharge any static electricity your body may have accumulated by grounding yourself to the ground buss in the unit heavy gauge black wires connect to this buss IMPORTANT Turn the unit OFF during disassembly and parts replacement Recheck all work before you apply power to the unit CONTENTS TO SERVICE PERSONNEL FRONT REAR PANELS ERE SPECIFICATIONS ee ee ee ee ee ee ADJUSTMENTS 4 PRINTED CIRCUIT BOARD 5 9 SCHEMATIC 10 WIRING S er 11 PARTS DOS 20 INTERNAL E re ere DISASSEMBLY PROCEDURES bh G N N YAMAHA YAMAHA CORPORATION O Box 1 Hamamatsu Japan 1 35K 604 Do Printed in Japan 88 8 MX 2000 SERVICE PERSONNEL 1 Critical Components Information Components having special characteristics are marked A and must be replaced with parts having specifications equal to those originally installed EQUIPMENT AC LEAKAGE TESTER 2 Leakage Current Measurement For 120V Model Onty UNDER TEST OR EQUIVALENT When service has been completed it is imperative that you verify that all exposed conductive surfaces are properly insulated from supply circuits e Meter impedance should be equivalent to 1500 ohm shunted WALL by O 15uF OUTLET INSULATING TABLE Leakage current mus
17. r reads OW with no signal applied and adjust again if necessary Meter Circuit Board VR402 GAIN VR404 ZERO 52 52 cs U VR403 ZERO MX 2000 CIRCUIT BOARD Pattern side 1 Note xF Component side Main Circuit Board 1 AlddNS YAMOd WON3 0220 E ae 7 ARN lami 2259 22 29 1 AA emmy L channel is the same as R channel 1300W 2 rcm J Y 5120 cam e 13004 f 2 AlddNS YAMOd OL E x INdNI OL H3WHOJSNVH L H3MOd WON m gt ii Q gt TO POWER SUPPLY 2 TO MAIN Rch TO MAIN L ch c ae ASIE x 2 qu Secr SN 1 ar 3 1 47 TI TO POWER SUPPLY 2 TO METER 1 2 ED 0 00002 3 l O POWER SUPPLY 2 FROM JJSNVH l H3MOd L paeog Ajddns apis 930 Opis 14 MX 2000 FROM POWER SUPPLY 1 TO POWER SUPPLY 1 LOW vr om ym 3 79 eo on E o Ea Q o z a TO INPUT FROM MAIN Lch FROM MAIN Rch TO POWER SUPPLY 1 TO POWER SUPPLY TO METER 1 FROM POWER TO POWER SUPPLY 2 SUPPLY LE 2 4 R
18. t not exceed O 5mA e Be sure to test forleakage with the AC plug in both polarities POLARIZATION This amplifier product is equipped with a polarized alternat ing current line plug a plug having one blade wider than the other This plug will fit into the power outlet only one way This ia a safety feature E FRONT REAR PANELS YAMAHA NATURAL STARANO STEREO POWER Mx 2000 PEAK LEVEL 50 200 Oy cO tee oy oh ak uU IRN a 1 KAP SOM Gh Yt Fp id s 3 2 4 y lt 3 3 Y Y E Ant 5 ATTENTION asaz mg maa WARNING o mou Tw 8 sme sace 06 Tun TO AM OTE YAMAHA 52 20 VOLTS YAMAHA CORPORATION MADE JAPAN SPECIFICATIONS Minimum RMS Output Power per Channel 20Hz 20kHz 0 005 THD 80 0 006 THD 62 0 01 THD 42 Dynamic Power per Channel 130W 130W 150W 150W 180W 180W by IHF Dynamic Headroom measuring method 82 180W 69 40 20 19 Power Band Width 0 02 THD 65W 82 Damping Factor 1kHz 82 Input Sensitivity Impedance MAIN IN 130W 852 Frequency Response 20Hz 20kHz MAIN IN 240W 340W 490W 600W 10Hz 100kHz 1000 1 2mV 20k2 0 0 3dB Harmonic Distortion 20Hz 20kHz MX 2000 DIME
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