IC BLOCK DIAGRAM(IC ブロック図) ..........16 CIRCUIT BOARDS(シート基板図)..........17 INSPECTIONS(検査) ..............22/27 BLOCK DIAGRAM & LEVEL DIAGRAM (ブロック&レベルダイアグラム) OVERALL CIRCUIT DIAGRAM(総回路図) u163 PARTS LIST 011744 HAMAMATSU, JAPAN 20050110-23000 Copyright (c) Yamaha Corporation. All rights reserved. PDF-K1941 M I ’04.12 http://www.xiaoyu163.com...
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.
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http://www.xiaoyu163.com MG8 / 2FX SPECIFICATIONS 3 7 63 1515 0 ■ ■ ■ ■ ■ Electrical Characteristics Conditions UNIT Total Harmonic Distortion (THD+N) 20 Hz - 20 kHz @+14dBu 10k ohms (MIC to ST OUT) (CH1, 2) with Signal input CH LEVEL Control and ST Master LEVEL Control at nominal level Frequency Response 20 Hz - 20 kHz @+4 dBu 10k ohms with GAIN...
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http://www.xiaoyu163.com MG8 / 2FX 3 7 63 1515 0 Note: When reassembling the MAIN circuit board and the 注)MAIN シートとトップカバーの再組立時に、LED の頭とスペーサーがパネルの穴から正しく出て top cover, confirm whether the heads of LEDs and いるか注意して下さい。 ( Fig.9) spacers correctly come out of the corresponding holes on the top cover.(Fig.9) (LED) (Spacer)
http://www.xiaoyu163.com MG8 / 2FX IC BLOCK DIAGRAM (IC ブロック図) 3 7 63 1515 0 PCM1742KEG/2K (X3538A00) Digital to Analog Converter DSP: ICM08 PIN ASSIGNMENTS NAME TYPE FUNCTION Audio Data Bit Clock Input. DATA Audio Data Digital Input. DATA LRCK L-Channel and R-Channel Audio Data Latch En- Audio LRCK LRCK...
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http://www.xiaoyu163.com MG8 / 2FX CIRCUIT BOARDS (シート基板図) 3 7 63 1515 0 CONTENTS MAIN Circuit Board (X5023B0) ................... 18-21 DSP Circuit Board (X5022C0) ....................17 • DSP Circuit Board L 13942296513 To MAIN-CNE01 Component Side(部品側) Pattern Side(パターン側) u163 Note:See parts list for details of circuit board component parts. 注:シートの部品詳細はパーツリストをご参照ください。...
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http://www.xiaoyu163.com MG8 / 2FX 3 7 63 1515 0 • MAIN Circuit Board IC01-IC05, Q01 PHONES Apply silicon grease to the shaded area FOOT before installing ICs 01-05 and Q01 on SWITCH the heat sink. 放熱板に取り付ける前に斜線部にシリコン グリスを塗ること。 ST OUT ST OUT C-R OUT C-R OUT SEND...
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http://www.xiaoyu163.com MG8 / 2FX 3 7 63 1515 0 PEAK to DSP-CNM02 HONES POWER R OUT RETURN 2TR IN C-R / PHONES PHANTOM +48V PROGRAM PARAMETER EFFECT TURN L 13942296513 PAN/BAL PEAK PAN/BAL PEAK SERT PEAK SERT PEAK u163 GAIN PEAK HIGH EFFECT...
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http://www.xiaoyu163.com MG8 / 2FX 3 7 63 1515 0 • MAIN Circuit Board L 13942296513 u163 http://www.xiaoyu163.com...
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http://www.xiaoyu163.com MG8 / 2FX 3 7 63 1515 0 BROWN to AC ADAPTOR IN WD35000 Wiring Ass'y AC8 ON/STANDBY BLACK L 13942296513 u163 Pattern Side(パターン側) 2NA-WC28110 http://www.xiaoyu163.com...
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http://www.xiaoyu163.com MG8 / 2FX INSPECTIONS 3 7 63 1515 0 Power Supply AC Adaptor shall be used. W0703500(U,V:120V), WC711000(O:220V), WC703800(K:220V), WC703700(B:230V), WC703600(H,W:230V), WC703900(A:240V), WC703400(J:100V) Power Indicator and Effect On LED Inspection POWER LED &DIGITAL EFFECT ON LED shall light when the unit is turned on. Next, turn off the DIGITAL EFFECT ON switch.(Then, LED shall be off.) Mixer Section Inspection 3.1 Preparation...
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http://www.xiaoyu163.com MG8 / 2FX 3 7 63 1515 0 3.2 Gain The output levels shall be within the range specified in the Table 3.2-1 to 3.2-6. Table 3.2-1 [CH INPUT(1, 2)] [Unit: dBu] INPUT INPUT Level Gain ST L OUT ST R OUT SEND/EFFECT C-R OUT L C-R OUT R...
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http://www.xiaoyu163.com MG8 / 2FX 3 7 63 1515 0 3.3 Frequency Characteristics In the signal routes of the Table 3.2-1 to 3.2-6 indicated with (1) to (12), the 20Hz and 20kHz frequency response of each output shall be within the range of 0 dB +1/-2.5 dB compared to the 1kHz(0dB). *The 20Hz level when the GAIN volume is Max shall be within the range of 0 dB +1.0/-4.5 dB compared to the 1kHz (0dB).
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http://www.xiaoyu163.com MG8 / 2FX 3 7 63 1515 0 At the C-R OUT (L/R), setting the Level Control to the 12 o’clock position, feeding each 20Hz, 1kHz and 20kHz signal, the distortion shall be less than 0.2%, when the output signal level is +3dBu. *In the route (1), check every OUT when the signal is fed to CH1,and check only the ST L OUT when the signal is fed to CH2 and other channels.
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http://www.xiaoyu163.com MG8 / 2FX 3 7 63 1515 0 3.15 Others DIGITAL EFFECT(Confirmation by Hearing Test) Before testing, set the controls as shown below. EFFECT VR: Max.(10), PROGRAM: 1, EFFECT: ON, EFFECT RTN VR: Max.(10) Feed a sound source at an appropriate level to CH1 and confirm whether the reverb sound is heard at the PHONES. Foot Switch(Confirmation) Confirm that the EFFECT is turned on and off correctly when the foot switch is pressed and released.
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http://www.xiaoyu163.com MG8 / 2FX 3 7 63 1515 0 Table 3.14-1 [ Table 3.14-1 [ Table 3.14-1 [単 位 Table 3.14-1 [ Table 3.14-1 [ 単 位 単 位 単 位 単 位: d B u ] : d B u ] : d B u ] : d B u ] : d B u ]...
http://www.xiaoyu163.com 3 7 63 1515 0 PARTS LIST CONTENTS(目次) OVERALL ASSEMBLY (総組立) ..................2 ELECTRICAL PARTS (電気部品) .................. 4 Note) DESTINATION ABBREVIATIONS L 13942296513 Australian model Chinese model British model South-east Asia model Canadian model Taiwan model German model U.S.A. model European model General export model (110V) French model...
http://www.xiaoyu163.com 3 7 63 1515 0 CIRCUIT DIAGRAM CONTENTS(目次) BLOCK DIAGRAM & LEVEL DIAGRAM (ブロックダイアグラム、レベルダイアグラム) ..OVERALL CIRCUIT DIAGRAM (総回路図) ( MA IN 1/5 ) ........................3 ( MAIN 2/5 ) ........................4 ( MAIN 3/5 ) ........................5 L 13942296513 ( MAIN 4/5 ) , ( MAIN 5/5 ) ....................
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3 7 6 3 1 5 1 5 0 BLOCK DIAGRAM & LEVEL DIAGRAM MG8/2FX MAIN SW102 JK101,201 Q101~104,IC101a LD102 Q201~204,IC201a IC802a IC804a SW101,201 JK802 LD101,201 IC103 VR107 IC101b,201b JK102,202 LEVEL IC202 VR207 VR801 LINE ST OUT GAIN VR102...
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3 7 6 3 1 5 1 5 0 OVERALL CIRCUIT DIAGRAM 1/6 (MAIN 1/5) MG8/2FX MAIN To MAIN 2/5:A3 PHANTOM 3/5:J8 4/5:B4 OP AMP To MAIN 2/5:A3 LEVEL 3/5:I8 GAIN 4/5:B4 OP AMP OP AMP EFFECT To MAIN 2/5:A4...
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3 7 6 3 1 5 1 5 0 OVERALL CIRCUIT DIAGRAM 2/6 ( MAIN 2/5 ) MG8/2FX MAIN OP AMP To MAIN 1/5:A1 3/5:J8 OP AMP (-10dBu) 4/5:B4 HIGH OP AMP To MAIN 1/5:A1 OP AMP 3/5:I8 4/5:B4...
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http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 From MAIN 1/5:A1 2/5:A3 4/5:B4 OP AMP OP AMP ST OUT From MAIN 1/5:A1 2/5:A3 OP AMP 4/5:B4 OP AMP To MAIN 2/5:P8 To MAIN 2/5:Q8 To MAIN 4/5:F4 From MAIN 1/5:A2 SEND (+4dBu) 2/5:A4...
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3 7 6 3 1 5 1 5 0 ■ OVERALL CIRCUIT DIAGRAM 4/6 (MAIN 4/5) MG8/2FX MAIN PROGRAM To DSP-CNM02 PARAMETER EFFECT RTN From MAIN 3/5:I6 To MAIN 1/5:A1, 2/5:A3, 3/5:J8 To MAIN 1/5:A1, 2/5:A3, 3/5:I8 FOOT SWITCH Note: See parts list for details of circuit board component parts.
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MG8/2FX 3 7 6 3 1 5 1 5 0 OVERALL CIRCUIT DIAGRAM 6/6 (DSP) MASK ROM RESET For JTAG Serial I/F 1 3 9 4 2 2 9 6 5 1 3 Not connected Not install OP AMP...