Yamaha CP2000 Service Manual
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Yamaha CP2000 Service Manual

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POWER AMPLIFIER

SERVICE MANUAL
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
This document is printed on chlorine free (ECF) paper with soy ink.
PA
011553
HAMAMATSU, JAPAN
1.222K-496
Printed in Japan '00.11

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  • Page 1: Power Amplifier

    POWER AMPLIFIER SERVICE MANUAL 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 This document is printed on chlorine free (ECF) paper with soy ink.
  • Page 2 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.

  • Page 3: Specifications

    30 k (balanced), 15 k (unbalanced) POWER switch (push on/push off) Front panel LEVEL attenuator (31 position) x2 Controls Mode switch (STEREO/BRIDGE/PARALLEL) Rear panel YAMAHA SPEAKER PROCESSING switch (ON/OFF) XLR-3-31 type (balanced) L+R Input 1/4" phone jack (balanced) L+R Connectors 1/4" phone jack L+R Output...

  • Page 4: Panel Layout

    CP2000 PANEL LAYOUT Front Panel POWER switch Level controls POWER indicator CLIP indicators PROTECTION indicator LEVEL indicators TEMP indicator Rear Panel INPUTs SPEAKERS connectors Mode switch GND terminal YAMAHA SPEAKER PROCESSING switch...

  • Page 5: Circuit Board Layout

    CP2000 CIRCUIT BOARD LAYOUT Front panel Power transformer CN616 CN617 CN615 CN303 CN305 CN304 CN302 CN606 CN607 CN610 CN608 CN609 CN601 CN602 CN612 CN611 CN603 CN605 CN604 CN101 • Wire Colors U, V, T H, W, B Location Part No.
  • Page 6 POWER TRANSFORMER POWER switch to Rear panel AC cord KEC-92573...

  • Page 7: Dimentions

    CP2000 DIMENTIONS Unit: mm...
  • Page 8 CHANNEL L LD606 (BRIDGE) LD604 SIGNAL (PARALLEL) CLIP CHANNEL L JK303 CN304 CN303 CN615 LD601 Temperature PROTECTION Protection Sensor INPUT YAMAHA LD603 Circuit (Heat Sink) L+R BRIDGE SPEAKER IC302 TEMP PROCESSING JK302 CN616 SP601 CLIP LD608 SIGNAL CHANNEL R LD607 LD609...

  • Page 9: Disassembly Procedure

    CP2000 DISASSEMBLY PROCEDURE Top Cover AC2/6 Circuit Board (time required: about 3 minutes) (time required: about 15 minutes) Remove the nine (9) screws marked [420]. The top cover can then be removed. (Fig. 1) Remove the top cover. (See procedure 1.) Remove the AC3/6 circuit board.
  • Page 10 CP2000 PA Unit & PA Circuit Board DC Fan (time required: about 8 minutes) (time required: about 15 minutes) Remove the top cover. (See procedure 1.) Remove the top cover. (See procedure 1.) Remove the PA unit. (See procedure 6-2.) Remove the six (6) screws marked [160].

  • Page 11: Ic Block Diagram

    CP2000 IC BLOCK DIAGRAM M5238AP (XM085A00) NJM2068L-D (XM356A00) Dual Operational Amplifier Dual Operational Amplifier IN: IC301 IN: IC302, 303 +DC Voltage Output A Supply Inverting Output B Input A Inverting Non-Inverting Input B Input A Non-Inverting -DC Voltage Supply Input B CIRCUIT BOARDS CONTENTS AC 1/6 Circuit Board (XY969B0)················································································...

  • Page 12: Circuit Boards

    CP2000 CIRCUIT BOARDS IN Circuit Board to AC 2/6-CN614 to FAN to AC 5/6 -CN616 to AC6/6 -CN617 to AC 4/6 -CN615 AC 1/6 Circuit Board AC 4/6 Circuit Board LEVEL CONTROL L LEVEL CONTROL R to IN-CN303 POWER ON/OFF...
  • Page 13 CP2000 to PA-CN101 (BRIDGE) CHANNEL L YAMAHA SPEAKER PROCESSING INPUT PARALLEL BRIDGE STEREO CHANNEL R Component side AC 3/6 Circuit Board SPEAKERS CHANNEL L CHANNEL R (-) BRIDGE (+) Component side to REAR PANEL to PA-CN106 to PA-CN105 to AC 2/6-CN612...

  • Page 14: Pa Circuit Board

    CP2000 PA Circuit Board CN101: to IN-CN306 CN103: to AC 2/6-W605 CN105: to AC 3/6-W607 CN102: to AC 2/6-W604 CN104: to AC 2/6-W606 CN106: to AC 3/6-W609 3NA-V60721...
  • Page 15 CP2000 Component side 3NA-V60721...
  • Page 16 CP2000 AC 2/6 Circuit Board to IN-CN301 to Power transformer Component side CN601: to AC 1/6-W601 CN606: to Power transformer CN611: to Power transformer CN602: to AC 1/6-W602 CN607: to Power transformer CN612: to AC 3/6-W608 CN603: to AC 1/6-W603...

  • Page 17: Inspections

    * YAMAHA SPEAKER PROCESSING ON: Using 1 kHz as a standard for the output voltage, with the Yamaha speaker processing off, the output voltage shall be within + 1.5 dB when a 70 Hz, -10 dBu sine wave is input to the input terminal.

  • Page 18: Bridge Mode

    Input terminal L channel cannon connector (No. 2 hot, No. 1, 3 ground) Mode SW Bridge Yamaha speaker processing Output terminal Use L channel +, R channel +. Load resistance + 4 , Non inductance resistor, input capacitance 500 W or more.
  • Page 19 MIN and measure. It shall be -60 dBu or less. 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. Others A DIN audio filter shall be used for the measurement of the noise level.

  • Page 20: Power Amplifier

    POWER AMPLIFIER PARTS LIST CONTENTS OVERALL ASSEMBLY······························································································································ 2 ELECTRICAL PARTS ························································································································· 5~12 Notes: DESTINATION ABBREVIATIONS Australian model M: South African model British model Chinese model Canadian model South-east Asia model German model Taiwan model European model U.S.A. model French model General export model (110 V) North European model W: General export model (220 V)

  • Page 21: Overall Assembly

    CP2000 OVERALL ASSEMBLY 40 40a Front Sub 110a Assembly 110c 110d F110 F100 110e F100 150 PA Unit 110b F120 110f...
  • Page 22 CP2000 PART NO. DESCRIPTION REMARKS REF NO. RANK OVERALL ASSEMBLY CP2000 Overall Assembly (V617020) Overall Assembly (V617030) Overall Assembly (V617040) Overall Assembly (V617050) Overall Assembly (V617060) V6170900 Main Chassis U,V,H,W,B,A V6308400 Main Chassis V6171000 Protection Sheet A PPE T=0.3 Protection Sheet B PPE T=0.3...
  • Page 23 CP2000 PART NO. DESCRIPTION REMARKS REF NO. RANK Rear Angle P-SERIES VY937100 EG340190 Bind Head Tapping Screw-B 4.0X8 MFZN2BL VP156800 Bind Head Screw A4.0X8 MFZN2BL Connector Assembly PA 15P (V618590) Connector Assembly AC-IN 8P (V618600) VV104600 Cord Holder VY937600 Top Cover...

  • Page 24: Electrical Parts

    CP2000 ELECTRICAL PARTS PART NO. DESCRIPTION REMARKS REF NO. RANK ELECTRICAL PARTS CP2000 Circuit Board AC U U,V,T (V607220)(XY969C0) Circuit Board AC H H,W,B (V607230)(XY969C0) Circuit Board AC A (V688310)(XY969C0) AAX20810 Circuit Board AC 1/6 (XY969C0) AAX20820 Circuit Board AC U 2/6...
  • Page 25 CP2000 PART NO. DESCRIPTION REMARKS REF NO. RANK R608 Flame Proof C. Resistor 22.0 1/4 J VZ008800 RY601 VZ003600 Relay W601 V6186600 Connector Assembly SWR, BR W602 V6186600 Connector Assembly SWR, BR W603 V6186500 Connector Assembly SWY, YE W604 V6186300...
  • Page 26 CP2000 PART NO. DESCRIPTION REMARKS REF NO. RANK C337 Electrolytic Cap. 1.00 50.0V UR866100 C338 V6638400 Electrolytic Cap. 22.00 25.0V C339 V6638400 Electrolytic Cap. 22.00 25.0V C340 UR866100 Electrolytic Cap. 1.00 50.0V C341 UR866100 Electrolytic Cap. 1.00 50.0V C342 FG652100...
  • Page 27 CP2000 PART NO. DESCRIPTION REMARKS REF NO. RANK Q322 Digital Transistor DTC114ES VD678700 Q323 V2797700 Transistor 2SC5395 E,F Q324 V2797700 Transistor 2SC5395 E,F Q325 VD678500 Digital Transistor DTA114ES -327 VD678500 Digital Transistor DTA114ES Q328 IC1815M0 Transistor 2SC1815 Y,GR Q329 IC1815M0...
  • Page 28 CP2000 PART NO. DESCRIPTION REMARKS REF NO. RANK R347 Flame Proof C. Resistor 4.7 1/4 J VV276700 R348 HF456680 Carbon Resistor 6.8K 1/4 J R349 HF456120 Carbon Resistor 1.2K 1/4 J R350 HF456120 Carbon Resistor 1.2K 1/4 J R351 HF455330 Carbon Resistor 330.0 1/4 J...
  • Page 29 CP2000 PART NO. DESCRIPTION REMARKS REF NO. RANK R438 Carbon Resistor 1.2K 1/4 J HF456120 R439 HF455330 Carbon Resistor 330.0 1/4 J R440 HF457150 Carbon Resistor 15.0K 1/4 J R441 HF457150 Carbon Resistor 15.0K 1/4 J SW301 VY898200 Slide Switch...
  • Page 30 CP2000 PART NO. DESCRIPTION REMARKS REF NO. RANK Q101 Transistor 2SC4793 (HFE) VQ547300 Q102 VQ547300 Transistor 2SC4793 (HFE) Q103 V2797600 Transistor 2SA1993 E,F Q104 V2797600 Transistor 2SA1993 E,F Q105 V2797700 Transistor 2SC5395 E,F Q106 V2797700 Transistor 2SC5395 E,F Q107 VR152900...
  • Page 31 CP2000 PART NO. DESCRIPTION REMARKS REF NO. RANK -176 Wire Wound Resistor 0.22 5W K V4833200 R177 VV276700 Flame Proof C. Resistor 4.7 1/4 J R178 HF456560 Carbon Resistor 5.6K 1/4 J R179 HF456560 Carbon Resistor 5.6K 1/4 J R180...
  • Page 32 CP2000 OVERALL CIRCUIT DIAGRAM ( IN, AC, PA ) CP2000 CHANNEL L OP AMP to AC 4/6 CN615 INPUT CHANNEL R OP AMP REGULATOR OP AMP PROTECTION POWER TEMP to AC 6/6 CN617 to AC 2/6 CN614 to AC 5/6 CN616...

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