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.
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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.
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.
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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].
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)················································································...
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...
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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...
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...
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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...
* 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.
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.
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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.
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)
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...
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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...