YAMAHA cp-2000-sm 维修电路原理图.pdf

SERVICE MANUAL PA 011553 HAMAMATSU, JAPAN 1.222K-496 Printed in Japan 00.11 CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 4 CIRCUIT BOARD LAYOUT 5 WIRING 6 DIMENTIONS 7 BLOCK DIAGRAM 8 DISASSEMBLY PROCEDURE 9 IC BLOCK DIAGRAM 11 CIRCUIT BOARDS 12 INSPECTIONS 17 PARTS LIST OVERALL CIRCUIT DIAGRAM POWER AMPLIFIER This document is printed on chlorine free (ECF) paper with soy ink. CP2000 2 WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. 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 inherent 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 to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative. IMPORTANT:This presentation or sale of this manual to any individual or firm does not constitute authorization, certification, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributors Service Division. WARNING:Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus). IMPORTANT:Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. IMPORTANT NOTICE FOR THE UNITED KINGDOM Connecting the Plug and Cord IMPORTANT.The wires in this main lead are coloured in accordance with the following code: BLUE:NEUTRAL BROWN: LIVE As the colours of the wires in the main lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows: The BLUE wire must be connected to the terminal that is marked with the letter N (or coloured BLACK). The BROWN wire must be connected to the terminal that is marked with the letter L (or coloured RED). Be certain that neither core is connected to the earth terminal of the three pin plug. SPECIFICATIONS CP2000 3 Power Output Level8 /STEREO 1 kHz, THD+N=1 % 4 /STEREO 8 /BRIDGE 1 kHz2 /STEREO 20 ms, non-clip4 /BRIDGE Power BandwidthTHD+N=0.2 % (half power) Total Harmonic Distortion (THD+N)48 /STEREO 20 Hz20 kHz (half power)8 /BRIDGE Intermodulation Distortion48 /STEREO 60 Hz:7 kHz, 4:1, half power8 /BRIDGE Frequency Response8 , Po=1W Channel separationHalf power, RL=8 LEVEL=max., input 600 shunt Residual NoiseLEVEL=min., 12.7 kHz LPF, IHF-A network S/N Ratio12.7 kHz LPF Damping FactorRL=8 , 1 kHz SensitivityLEVEL=max., rated power into 8 Voltage GainLEVEL=max. Input Impedance Front panel Controls Rear panel Input Connectors Output POWER PROTECTION TEMP Indicators CLIP SIGNAL Protection Circuit Fan Circuit Limiter Circuit Power requirements Idle Power Consumption 1/8 Power Consumption (4 ) Maximum Power Consumption (4 ) Dimensions (W x H x D) Weight AC Power cord length 450 W + 450 W 650 W + 650 W 1300 W 1000 W + 1000 W 2000 W 10 Hz40 kHz 0.1% 0.1% 0 dB, +0.5 dB, -1 dB f=20 Hz50 kHz 70 dB, 1 kHz -70 dB 104 dB 200 +4 dB 33.8 dB 30 k (balanced), 15 k (unbalanced) POWER switch (push on/push off) LEVEL attenuator (31 position) x2 Mode switch (STEREO/BRIDGE/PARALLEL) YAMAHA SPEAKER PROCESSING switch (ON/OFF) XLR-3-31 type (balanced) L+R 1/4 phone jack (balanced) L+R 1/4 phone jack L+R 5-way binding post x1 x1 (green) x1 (red) x1 (red) heatsink temp 85 C x2 (red) x2 (green) output voltage 2 V x2 (yellow) output voltage 20 V POWER switch on/off mute DC detection TEMP (heatsink temp 90 C) PC limiter: RL 1 Stoplow speed (50 C)variablehigh Speed (70 C) Comp: THD0.5 % U.S.A. No. 1, 3 ground Stereo Off Resistance load 4 , Non inductance resistor, input capacitance 500 W or more. Unless otherwise specified, drive both channels unless otherwise specified. INPA AC 3/6 AC 2/6 TM-C FAN-C 1.2.10 Stability The following conditions shall be met when a 10 kHz, -10dBu rectangular pulse is input and a capacitance of 10 pf 0.47 F is connected in parallel with a load resistance of 4 . Overshoot Vp/Vo 1.8 Ringing: Within 5 waves Next, when there is only a pure capacitance of 10 pf 0.47 F the following conditions shall be met. Vp/Vo 2.5 Ringing: There shall be convergence within 7 waves and no oscillation, etc. 1.2.11 Protection circuit The protection circuit shall operate and the relay shall not open when a 10 Hz, +5.4 dBu sine wave is input and the output wave is made to clip. Next, the protection circuit shall operate within two seconds and break the output when a 1 Hz, 0.0 dBu sine wave is input. In addition, when the input signal is cut, it shall automatically recover within 10 seconds. 1.2.12 Efficiency (1) The primary electrical power shall be measured and be within the range shown below when a 1 kHz, -6.6 dBu sine wave is input to the input terminal. 330 W 50 W(U: 4.0 A 0.6 A,H: 2.0 A 0.3A) (2) The primary electrical power shall be measured and be within the range shown below when the input terminal is grounded by the introduction of the input terminal. 25 W 10 W(U: 0.33 A 0.13 A, H: 0.20 A 0.08 A) 1.2.13 PC limiter and comp Input a 1 kHz, -1.5 dBu sine wave to the input terminal and connect 1 ( 5 %) as a load to the output terminal. Under these conditions, a 10 V Vrms 16 V sine wave shall be attained at the output. The total harmonic distortion ratio shall be THD=5 % or less. Also at this time, the clip indicator shall come on. This inspection shall be completed within 30 seconds. 1.2.14 Signal indicator The green signal indicator shall come on when a 1 kHz, -23 dBu sine wave is input. In addition, the green and yellow signal indicators shall come on when a 1 kHz, -4 dBu sine wave is input. 2.Bridge mode 2.1Preparations 2.2Inspection 2.2.1Gain An output voltage of +24.0 1.0 dBu shall be attained when a 1 kHz, -10 dBu sine wave is input to the input terminal. < = < = < = < = CP2000 18 Input attenuator Input terminal Mode SW Yamaha speaker processing Output terminal Load resistance Measurement connection L channel only operates. Set to MAX. L channel cannon connector (No. 2 hot, No. 1, 3 ground) Bridge Off Use L channel +, R channel +. 4 + 4, Non inductance resistor, input capacitance 500 W or more. Set to a floating ground and connect at center point of load resistance. SPEAKERS INPUT MEASURING INSTRUMENT GND CP2000 19 2.2.2Frequency characteristics Using 1 kHz as a standard for the output voltage, the output voltage shall be within -0.5 0.5 dB at 20 kHz when 20 Hz, 1 kHz, 20 kHz, -10 B dBu sine waves are input to the input terminal. 2.2.3Total harmonic distortion ratio characteristics The total harmonic distortion ration shall be 1 % or less when a 1 kHz high definition sine wave is input to the input terminal and the output voltage of 36.4 dBu has been attained. This inspection shall be completed within 30 seconds. 2.2.4Output noise level Measure the noise level at both terminals of the load resistance when the input attenuator has been set to MAX and the input terminal has been grounded by the introduction of a 600 resistance. It shall be -60 dBu or less. Next, set the input attenuator to MIN and measure. It shall be -60 dBu or less. 3.Process after completion of inspection Close up the input attenuator in a half-clockwise direction. Set YAMAHA SPEAKER PROCESSING to on. Set the mode switch to STEREO. 4.Others A DIN audio filter shall be used for the measurement of the noise level. 0 dBu=0.775 V CONTENTS OVERALL ASSEMBLY2 ELECTRICAL PARTS 512 PARTS LIST WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. A:Australian model B:British model C:Canadian model D:German model E:European model F:French model H:North European model I :Indonesian model J:Japanese model M:South African model O:Chinese model Q:South-east Asia model T:Taiwan model U:U.S.A. model V:General export model (110 V) W:General export model (220 V) N,X:General export model Y:Export model Notes: DESTINATION ABBREVIATIONS The numbers in “ QTY ” show quantities for each unit. The parts with “ - - ” in “ PART NO. ” are not available as spare parts. The mark “ ” in the remarks column indicates that these parts are interchangeable. The second letter of the shaded ( ) part number is O, not zero. The second letter of the shaded ( ) part number is I, not one. POWER AMPLIFIER 420 400 40 40a 70 50 60 330 300 310 320 360 290 280 190 Front Sub Assembly 120 F70 F50 F10 P80 P40 P30 P80 P80 P20 P10 P70 P50 150 PA Unit P60 F60 F90 F80 F110 F100 F100 F120 F20 330 360 390 430 111 112 10 130 350 340 140 210 220 230 270 260 250 240 113 160 180 170 80 100 101 95 97 96 145 102 103 90 20 30 370 380 200 290 410 110f 110e 110a 110d 110b 110c 340 350 CP2000 2 OVERALL ASSEMBLY CP2000 3 OVERALL ASSEMBLY Overall Assembly Overall Assembly Overall Assembly Overall Assembly Overall Assembly Main Chassis Main Chassis Protection Sheet Protection Sheet AC Cord AC Cord AC Cord AC Cord Assembly AC Cord Cord Strain Relief Bushing Ferrite Core Cord Holder Bind Head Screw Label Shield sheet Shield sheet Shield sheet Power Transformer Power Transformer Power Transformer Holder, Transformer Bushing Bind Head Tapping Screw-B Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Vibration-proof Rubber Vibration-proof Rubber Vibration-proof Rubber Bind Head Tapping Screw-B DB Angle Bind Head Tapping Screw-B Shield sheet PA Unit Bonding Tapping Screw-B Circuit Board Bind Head Tapping Screw-B Front Sub Assembly Bind Head Tapping Screw-B Bonding Tapping Screw-B Front Grille Bind Head Tapping Screw-B Front Panel Oval Head Screw Escutcheon, ATT Escutcheon, PSW Rear Panel Rear Panel Rear Panel Rear Panel Bonding Tapping Screw-B Bind Head Tapping Screw-B Cover, Speaker Terminal Bind Head Tapping Screw-B Bonding Tapping Screw-B DESCRIPTION 10 10 20 30 40 40 40 40 40a 50 50 60 70 80 90 95 96 97 100 100 100 101 102 103 110 110 110 110a 110b 110b 110b 110c 110d 110e 110f 111 112 113 120 130 140 145 150 160 170 180 190 200 210 220 230 240 250 260 270 280 280 280 280 290 300 310 320 330 REFNO. - - - - - - - - - - V6170900 V6308400 V6171000 V6171100 VZ021200 V2944000 VZ021600 - - VD280500 VV103100 VB669000 V3225000 VV104600 VP156800 - - - - - - - - XY980A00 XY981A00 XZ157A00 V6305500 V6305600 EG340190 - - - - - - AAX20810 AAX20820 AAX20830 AAX20840 AAX20850 AAX20860 AAX20870 AAX20880 V6511200 V6511300 V6800300 EP600190 - - EP600190 - - V6170800 VR779900 V6072000 EP600190 - - EG340190 VR779900 V6171300 EP600190 V6171400 VS153600 V6171500 V6171600 V6171700 V6171800 V6171900 V6172000 VN413300 VQ074600 VY938700 EP600190 VR779900 PART NO. A PPE T=0.3 B PPE T=0.3 SJT 3X#18 10A H05VV-F0.75X3 6A H05VV-F 13A U 3P 15A 2.5m SR-6P1 SR-7P-2 FR25/15/12-D40 A4.0X8 MFZN2BL GND A B C UL E CE E A E TKK 4.0X8 MFZN2BL AC U AC H AC A AC 1/6 AC U 2/6 AC H 2/6 AC A 2/6 AC 3/6 AC 4/6 AC 5/6 AC 6/6 A B C 3.0X8 MFZN2BL 3.0X8 MFZN2BL D 4.0X8 MFZN2BL IN 3.0X8 MFZN2BL 4.0X8 MFZN2BL 4.0X8 MFZN2BL 3.0X8 MFZN2BL 4.0X8 MFZN2BL 3.0X8 MFZN2BL 3.0X12 MFZN2BL P-SERIES 3.0X8 MFZN2BL 4.0X8 MFZN2BL CP2000 U,V(V617020) H,W(V617030) B(V617040) A(V617050) T(V617060) U,V,H,W,B,A T U,V H,W,A B T(V245650) T U,V,H,W,B,A T H,W,B H,W,B H,W,B(V542870) H,W,B(V701980) H,W,B(V701990) H,W,B(V702000) U,V,T H,W,B A U,V,T(V607220) H,W,B(V607230) A(V688310) U,V,T H,W,B A (V617120) H,W,B(V702010) (V617410) U,V H,W,B A T REMARKS 2 2 2 3 2 6 6 2 4 3 6 5 2 2 6 QTYRANK * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 06 06 08 08 01 02 03 01 01 01 01 01 01 01 01 01 01 01 01 01 03 01 01 *: New Parts RANK: Japan only CP2000 4 Rear Angle Bind Head Tapping Screw-B Bind Head Screw Connector Assembly Connector Assembly Cord Holder Top Cover Cover Bind Head Tapping Screw-B Label PA Unit Heat Sink Support Circuit Board Bind Head Screw Insulation Sheet Transistor Holder Transistor Holder Bind Head Tapping Screw-B Front Sub Assembly Front Chassis Fan Bind Head Screw Bind Head Screw Connector Assembly Connector Assembly Connector Assembly Bind Head Tapping Screw-B Power Switch Knob Attenuation Knob DESCRIPTION 340 350 360 370 380 390 400 410 420 430 P10 P20 P30 P40 P50 P60 P70 P80 F10 F20 F50 F60 F70 F80 F90 F100 F110 F120 REFNO. VY937100 EG340190 VP156800 - - - - VV104600 VY937600 V6172200 EG340190 VA039300 V6170800 - - VV086500 V6072100 EG330290 V6172500 V6172600 V6172700 VQ074600 - - - - V6622900 EG340360 VB659000 MF107100 MF109120 V6186100 EP600190 VU859000 VY938500 PART NO. P-SERIES 4.0X8 MFZN2BL A4.0X8 MFZN2BL PA 15P AC-IN 8P P-SERIES PPE T=0.3 4.0X8 MFZN2BL H=7.4 B=5.5 PA SP 3.0X8 MFZN2Y TBM51W T=0.15 LEFT RIGHT 3.0X12 MFZN2BL KDE2408PTS1-6A-318 4.0X8 MFZN2BL 3.0X8 MFZN2BL 7P 100mm P=1.25 9P 120mm P=1.25 IND 4P 3.0X8 MFZN2BL P-SERIES (V618590) (V618600) U,V (V617230) (V617410) (V617280) POWER LEVEL CONTROL REMARKS 2 4 2 9 2 9 6 6 2 18 2 2 2 2 QTYRANK * * * * * * * * * * 03 01 01 01 10 01 03 01 01 01 01 01 01 01 03 *: New Parts RANK: Japan only CP2000 5 ELECTRICAL PARTS Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Ci