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Summary of Contents for MX-2000

Page 1: ...illties or establisha principle agentrelationshipof any form The data provided is believed to be accurate and applicable to the unit s iddftxtted an the wver The research engineering and service departments of Yamaha are continually striving to imptwe Yamaha products Modificationsare therefore inevitableand specificationsare subjectt chaage wi out noticeor obligation to retrofit Should any discrep...

Page 2: ...perative that you verify that all exposed conductive surfaces are properly insulated from supply circuits Meter impedance should be equivalent to 1500ohm shunted WALL by 0 151iF OUTLET INSULATING TABLE Leakage current murt not exceed 0 5mA Be sure to test for leakagewith the AC plug in bath polarities POLARIZATION This amplifier product is equipped with a polarized alternat ing current line plug a...

Page 3: ...AIN IN O 0 3dB Total Harmonic DMonion IZOHz ZOkHz o MAIN IN TO SP OUT 1 3 0 8 n 0 005 S i i l to Noise Ratio IHF A Nwork 3 MAIN IN Shorted 126dB RriduJ Noise IHF A Network 15 V Chonlrl Sopantion IkHz InputShorted Vol max 96d6 Powor SUPMY ACIMV WHz Powa Consumption 880W AC OvNR UnSw tched x 1 WOW max P Dimwlon W x H x D 473 x 170x 469mm 1185 8 x6 11 16 x 187 16 l Unit mm inch WaIglu 28kg I61 lbs 11...

Page 4: ...RROR CORRECTIONSECTION MAINCIRCUITBOARD Lch H C A POWER STAGE POWER TRANSFORMER U model XE669001 C model XE670001 MAIN CIRCUIT BOARD Rch H C A POWER STAGE POWER SUPPLY CIRCUIT BOARD 2 OUTPUT COIL 81OUTPUT ERROR P O W E R SUPPLY CIRCUIT BOARD 11 POWER SUPPLY SECTION B1 f BZandiB3 PROTECTION CIRCUITSECTION METER CIRCUIT BOARD 1 ...

Page 5: ... that the voltage between test pins TP1 and TP2 in the main circuit board becomes DCGOmV 590mV Main Circuit Board I VR201 TPl TP2 Meter Adj Connect a ustment 8 9 dumm 1 y load 2 Aalusr vnrud IL ch and VR404 R ch so that meter indicator reads O W 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...

Page 6: ... PRINTED CIRCUIT BOARD Pattern side Note ZTEi Component ride I Main Circuit Board 1 L channel is the same as R channel ...

Page 7: ......

Page 8: ...FROM POWER SUPPLY II TO POWER SUPPLY I TO POWER SUPPLY I a TO POWER SUPPLY 2 ...

Page 9: ... WER SUPPLY 11 FROM POWER SUPPLY 11 METER Lch J ER SUPPLY 31 PROTECTION POWER SPEAKERS OFF C FR0M PQWER SUPPLY 1 L Meter Circuit Board 2 ...

Page 10: ...d 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 Lwhich receive board inof the power circuit board 2 with wires Connect iaOV power source to 82 E and 82 of board in going to the power supply circuit board L1 I I Input Circuit Board and then wnnect EM terminal to 82 with 47k Q 1 resistance include...

Page 11: ...m 2 0 a 0 WIRING 150mA 8 V x 6 METER II POWER SUPPLY 1 POWER SUPPLY 2 ...

Page 12: ...l characteristicsare marked and must be replaced with Parts having specificationsequal to those originally installed Carbon resistors Il BW or 1 4W are not included in the ELECT PARTS list For the parts No of the carbon resistor refer to p 20 E E XNew Parts a NR ...

Page 13: ... New Parts I NR ...

Page 14: ... New Parts M BI NR ...

Page 15: ...i I L i L i N s w Parts RfLlbb NR ...

Page 16: ......

Page 17: ...IMECHANIS M PARTS NO 9 Diameter ...

Page 18: ...IEXPLODED VIEW Tighten this scraw securely as it grounds the circuit the chartis ...

Page 19: ...I Part No 1 k 41 1 Fi 38 j 41 jOO Ceramic Cap 0 0lpF t 5 2 i 42 CB i 60 i 08 i 10 1Cover New Parts R NR ...

Page 20: ...Parts List for Carbon Resistor ...

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