Yamaha n8, n12 Digital Mixing Studio Service Manual 电路图.pdf

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1、SERVICE MANUAL HAMAMATSU, JAPAN SERVICE MANUAL n8: 20070625-120750 n12: 20070625-168000 SY011875 Copyright (c) Yamaha Corporation. All rights reserved. PDF 07.07 SPECIFICATIONS（総合仕様） . 3/6 PANEL LAYOUT（） . 9 DIMENSIONS（寸法図） . 16 CIRCUIT BOARD LAYOUT（） . 17 DISASSEMBLY PROCEDURE (n8)（分解手順） . 19 DISAS

2、SEMBLY PROCEDURE (n12)（分解手順） . 25 LSI PIN DESCRIPTION（LSI 端子機能表） . 34 IC BLOCK DIAGRAM（IC 図） . 41 CIRCUIT BOARDS（基板図） . 43 SERVICE CHECK PROGRAM （検査） . 65/87 UPDATING THE PROGRAM （） .109/112 CONTENTS（目次） INSPECTIONS（検査） .115/120 SEQUENCE WHEN POWER IS TURNED UP （電源起動時） . 125/128 DESCRIPTIONS ON TEST

3、 POINTS OF THE DM CIRCUIT BOARD （DM 説明） . 131/140 MIDI IMPLEMENTAION CHART . 149 PSRTS LIST BLOCK DIAGRAM（） WIRING DIAGRAM（接続図） CIRCUIT DIAGRAM（回路図） DETAIL VIEW OF DM CIRCUIT BOARD TEST POINTS （DM 詳細図 ） n8 n12 RadioFans.CN 收音机爱 好者资料库 n8/n12 2 WARNING WARNING: CHEMICAL CONTENT NOTICE! The solder used

4、 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 r

5、eproductive 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 wit

6、h 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

7、, 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 failu

8、re 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 doe

9、s 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 departm

10、ents 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

11、: 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

12、 work before you apply power to the unit. Components having special characteristics are marked and must be replaced with parts having specifi cation equal to those originally installed. 印部品、安全維持重要部品。交換場合、安全必指定部品使用。 RadioFans.CN 收音机爱 好者资料库 3 n8/n12 SPECIFICATIONS General Specifi cations Fadersn12100

13、mm 11 (Non-motorized) n860 mm 7 (Non-motorized) Power Requirementsn1251 W (PA-30) n833 W (PA-20) Dimensions (H D W)n12146 561 515 mm n8146 518 368 mm Net Weightn1214 kg n811 kg Operating Free-air Temperature Range+5 to +35 C Included AccessoriesAC power adaptor (PA-30 (n12), PA-20 (n8) DVD-ROM (Cuba

14、se AI 4) CD-ROM (TOOLS for n) Owners Manual TOOLS for n/Cubase AI 4 Installation Guide IEEE 1394 cable Functions Monaural Input ChannelsAnalog Input CH18 (n12) CH14 (n8) MIC PreampDiscrete Class-A MIC preamp (Inverted Darlington Circuitry) PHANTOM Switch+48 V DC (Only for INPUT A, turn on/off every

15、4 channels) To DIRECT OUT, REC bus, STEREO bus PAD Switch0/26 dB GAIN Control44 dB variable (60 dB to 16 dB) PHASE SwitchNormal/Reversed (CH17 (n12), CH13 (n8) High Pass Filter SwitchOFF/80 Hz (12 dB/oct.) Hi-Z SwitchON/OFF (CH8 (n12), CH4 (n8), Input impedance: 500 k AD Converter24 bit linear, Enha

16、nced dual-bit delta-sigma conversion Analog/DAW Input INPUT SELECT SwitchA.IN (analog)/DAW (IEEE1394 jack) COMP LEDLights in red when the compressor is working. MORPH ControlMorphs between 5 Sweet Spot Data DRIVE Control128 resolution Equalizer3 band PEQ 18 dB, MID frequency range: 100 Hz10 kHz ON S

17、witchON/OFF REVERB ControlAdjusts a post-fader signal after PAN AUX ControlAdjusts a pre-fader signal after PAN PAN Control33 resolution SOLO SwitchON/OFF DIRECT OUTPre-fader Input MeterLED 4: OVER (red), 3 dB (amber), 14 dB (amber), 48 dB (green) n12Pre-fader/Post-fader n8Only pre-fader WET SwitchW

18、ET ON/OFF Stereo Input ChannelsAnalog Input CH912 (n12) CH58 (n8) GAIN Control30 dB variable (26 dB to +4 dB) High Pass Filter SwitchOFF/80 Hz (12 dB/oct.) To DIRECT OUT, REC bus, STEREO bus AD Converter24 bit linear, Enhanced dual-bit delta-sigma conversion Analog/DAW Input INPUT SELECT SwitchA.IN

19、(analog)/DAW (IEEE1394 jack) Equalizer3 band PEQ 18 dB, MID frequency range: 100 Hz10 kHz ON SwitchON/OFF REVERB ControlAdjusts a post-fader signal after PAN AUX ControlAdjusts a pre-fader signal after PAN BAL Control33 resolution SOLO SwitchON/OFF DIRECT OUTPre-fader Input MeterLED 4: OVER (red), 3

20、 dB (amber), 14 dB (amber), 48 dB (green) n12Pre-fader/Post-fader n8Only pre-fader WET SwitchWET ON/OFF RadioFans.CN 收音机爱 好者资料库 n8/n12 4 2TR INLEVEL Control to +6 dB (to STEREO bus)/0 dB (to C-R) To C-R OUT, STEREO busON SwitchON/OFF AD Converter24 bit linear, Enhanced dual-bit delta/sigma conversio

21、n ST OUTSTEREO Fadern12 to +10 dB Outputs CH112, 2TR IN, DAW, REVERB, RETURN signals n8 to +6 dB STEREO ON SwitchON/OFF STEREO BAL Control33 resolution DA Converter 24 bit linear, 128 times oversampling advanced multi-bit delta/sigma conversion C-R OUTCONTROL ROOM LEVEL Control to 0 dB The BASS MANA

22、GEMENT function works in the surround sound system (n12 only). C-R SPEAKER SELECT Switchn12A (L/R), B (C/SW), C (LS/RS) Brackets ( ) indicate sources when 5.1 is selected as C-R SOURCE SELECT. C-R SOURCE SELECT Switchn125.1/DAW/STEREO bus/AUX bus/2TR IN n8DAW/STEREO bus/AUX bus/2TR IN DOWN MIX Switc

23、hn12ON/OFF (Active when 5.1 is selected as C-R SOURCE SELECT) DIMMER SwitchON/OFF MUTE SwitchON/OFF TALKBACK Switchn12ON/OFF TALK BACK LEVEL Controln12 to +6 dB, Sensitivity: 40 dB PFL SwitchON (SOLO: Pre-fader)/OFF (SOLO: Post-fader) DA Converter 24 bit linear, 128 times oversampling Advanced multi

24、-bit delta/sigma conversion AUX OUT (n12 only)AUX LEVEL Control to +6 dB (to AUX bus), to +6 dB (AUX bus to AUX OUT) Outputs CH1-12, DAW, REVERB Return, TALK BACK signals DA Converter24 bit linear, 128 times oversampling ( fs = 44.1 kHz, 48 kHz), 64 times oversampling ( fs = 88.2 kHz, 96 kHz) advanc

25、ed multi-bit delta-sigma conversion PHONES (AUX, C-R)LEVEL control for each AUX and C-R jacks Maximum Output Level25 mW ( 8 )/75 mW ( 40 ) DAW I/OAudio I/Fn1216-ch input/16-ch output n812-ch input/12-ch output MIDI I/F2-port input/2-port output (DAW remote control, Input/Output via MIDI IN/OUT jacks

26、) MIDI IN/OUT1 port input/1port output Output Level MeterMASTER LEVEL METERn1212 points LED meter 6 n812 points LED meter 2 METER SELECT SwitchC-R level/Bus level ReverbTypeHALL/ROOM/PLATE To AUX bus, REC bus, STEREO bus ControlREVERB TIME, LEVEL DAW Remote ControlWORK MODEST MIX/HARDWARE MIX/5.1 MI

27、X (5.1 MIX is only for n12.) MONITOR REMOTERecording monitor: ON/OFF, VST effects (WET): ON/OFF CLICK REMOTEClick ON/OFF, CLICK LEVEL control TRACK CONTROLPREV, NEXT, REC READY switch TRANSPORTCYCLE, Previous Marker, Add Marker, Next Marker, REW, FWD, STOP, PLAY, REC switch 5 n8/n12 Electrical Speci

28、fi cations Sample Rate Internal44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz External44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz (0.1 %) Total Harmonic DistortionGAIN: Minimum0.003 % or less (1 kHz +18 dB, into 600 ) Frequency Responsefs = 48 kHz20 Hz20 kHz, +1, 3 dB +4 dB, into 600 (CH IN to STEREO OUT)fs = 96 kHz20 H

29、z40 kHz, +1, 3 dB +4 dB, into 600 Dynamic Range114 dB, DA converter (STEREO OUT) (SN ratio at the maximum level)106 dB, AD + DA (to STEREO OUT) Hum & Noise128 dB, Equivalent input noise (20 Hz20 kHz)95 dB, Residual output noise, STEREO fader: Minimum Rs = 150 GAIN: Maximum95 dB (99 dB SN), STEREO OU

30、T PAD: OFFSTEREO fader: Nominal level, All channel faders: Minimum GAIN: 60 dB60 dB (64 dB SN), STEREO OUT PAD: OFFSTEREO fader: Nominal level, One channel fader: Nominal level Maximum Voltage Gainn1284 dB, CH18 to STEREO OUT/C-R OUT 50 dB, CH912 to STEREO OUT/C-R OUT 76 dB, CH18 to AUX OUT 42 dB, C

31、H912 to AUX OUT n876 dB, CH14 to STEREO OUT/C-R OUT 42 dB, CH58 to STEREO OUT/C-R OUT Crosstalk 1 kHzGAIN: Minimumn1286 dB, CH18 Adjacent Input80 dB, CH912 n886 dB, CH14 80 dB, CH58 Input and Output Specifi cations Analog InputType Input Level Nominal LevelMaximum LevelInput Impedance INPUT A (Mono)

32、 CH18 (n12) CH14 (n8) XLR type balanced, +48 V Phantom powered 60 dBu to +10 dBu+24 dBu3.5 k INPUT B (Mono) CH18 (n12) CH14 (n8) TRS phone type, balanced60 dBu to +10 dBu+24 dBu 3.5 k (500 k Hi-Z = ON) INSERT INTRS phone type, unbalanced0 dBu+14 dBu10 k INPUT (Stereo) CH912 (n12) CH58 (n8) RCA pin t

33、ype, unbalanced40 dBV to 10 dBV+4 dBV10 k Phone type, unbalanced26 dBu to +4 dBu+18 dBu10 k 2TR INRCA pin type, unbalanced10 dBV+4 dBV10 k Analog InputType Output Level Nominal LevelMaximum LevelInput Impedance ST OUT TRS phone type, balanced+4 dBu+18 dBu600 RCA pin type, unbalanced10 dBV+4 dBV10 k

34、C-R OUTTRS phone type, balanced+4 dBu+18 dBu600 AUX OUT (n12 only)TRS phone type, balanced+4 dBu+18 dBu600 INSERT OUTTRS phone type, unbalanced+4 dBu+18 dBu10 k C-R PHONES, AUX PHONESTRS phone type, unbalanced 4 mW + 4 mW25 mW + 25 mW8 12 mW + 12 mW75 mW + 75 mW40 n8/n12 6 総合仕様 一般仕様 n12100 mm x 11 (

35、 ) n860 mm x 7 ( ) 電源条件n1251 W (PA-30) n833 W (PA-20) 最大外形寸法 (H x D x W) n12146 x 561 x 515 mm n8146 x 518 x 368 mm 質量n1214 kg n811 kg 動作環境温度+5 +35 付属品電源 (PA-30 (n12)、PA-20 (n8) DVD-ROM (Cubase AI 4) CD-ROM (TOOLS for n) 取扱説明書 TOOLS for n/Cubase AI 4 保証書 IEEE1394 機能 入力入力 CH1 8 (n12) CH1 4 (n8) MIC D

36、iscrete Class-A MIC ( 回路 ) PHANTOM +48V DC (INPUT A 端子、4 切替 ) DIRECT OUT、REC 、 STEREO PAD 0/26 dB GAIN 44 dB 可変 (-60 dB -16 dB) PHASE 正相 / 逆相 (CH1 7 (n12)、CH1 3 (n8) OFF/80 Hz (-12 dB/oct.) Hi-Z ON/OFF (CH8 (n12)、CH4 (n8)、入力 : 500 k AD 24 bit 、高性能 / 変換 /DAW 入力 INPUT SELECT A.IN ( )/DAW (IEEE1394 端子

37、) COMP LED作動時点灯 ( 赤 ) MORPH 5 種類 Sweet Spot Data 間可能 DRIVE 128 解像度 3 EQ 18 dB、MID 可変 (100 Hz 10 kHz) ON ON/OFF REVERB PAN 調整後信号調整 AUX PAN 調整後信号調整 PAN 33 解像度 SOLO ON/OFF DIRECT OUT LED x 4: OVER ( 赤 )、-3 dB ( )、-14 dB ( )、-48 dB ( 緑 ) n12 / n8 WET WET ON/OFF 入力入力 CH9 12 (n12) CH5 8 (n8) GAIN 30 dB 可変

38、 (-26 dB +4 dB) OFF/80 Hz (-12 dB/oct.) DIRECT OUT、REC 、 STEREO AD 24 bit 、高性能 / 変換 /DAW 入力 INPUT SELECT A.IN ( )/DAW (IEEE1394 端子 ) 3 EQ 18 dB、MID 可変 (100 Hz 10 kHz) ON ON/OFF REVERB PAN 調整後信号調整 AUX PAN 調整後信号調整 BAL 33 解像度 SOLO ON/OFF DIRECT OUT LED x 4: OVER ( 赤 )、-3 dB ( )、-14 dB ( )、-48 dB ( 緑 )

39、n12 / n8 WET WET ON/OFF 7 n8/n12 2TR INLEVEL - +6 dB ( STEREO )/0 dB ( C-R) C-R OUT、STEREO ON ON/OFF AD 24 bit 、高性能 / 変換 ST OUTSTEREO n12- +10 dB CH1 12、2TR IN、DAW、 REVERB、RETURN 信号出力 n8- +6 dB STEREO ON ON/OFF STEREO BAL 33 解像度 DA 24 bit、 128 倍高性能/変換 C-R OUTCONTROL ROOM LEVEL- 0 dB BASS MANAGEMENT

40、機能搭載 (n12 ) C-R SPEALKER SELECTn12A (L/R)、B (C/SW)、C (LS/RS) () 内 C-R SOURCE SELECT 5.1 C-R SOURCE SELECT n125.1/DAW/STEREO /AUX /2TR IN n8DAW/STEREO /AUX /2TR IN DOWN MIX n12ON/OFF (C-R SOURCE SELECT 5.1 有効 ) DIMMER ON/OFF MUTE ON/OFF TALKBACK n12ON/OFF TALK BACK LEVEL n12- +6 dB、感度 : -40 dB PFL ON

41、 (SOLO: )/OFF (SOLO: ) DA 24 bit、 128 倍高性能/変換 AUX OUT (n12 )AUX LEVEL - +6 dB ( AUX )、- +6 dB (AUX AUX OUT) CH1 12、DAW、REVERB 、TALK BACK 信号出力 DA 24 bit 、 128 倍 ( fs = 44.1、 48 kHz)、 64 倍 ( fs = 88.2 kHz、96 kHz) 高性能変換 PHONES(AUX、C-R)AUX、C-R 端子 最大出力25 mW ( 8 )/75 mW ( 40 ) DAW I/O I/Fn1216-ch input/16

42、-ch output n812-ch input/12-ch output MIDI I/F2-port input/2-port output (DAW , MIDI IN/OUT 端子入出力) MIDI IN/OUT1 port input/1 port output 出力MASTER LEVEL METERn1212 LED x6 n812 LED x2 METER SELECT C-R / HALL/ROOM/PLATE AUX 、REC 、 STEREO REVERB TIME、LEVEL DAW WORK MODEST MIX/HARDWARE MIX/5.1 MIX (5.1 M

43、IX n12 ) MONITOR REMOTE : ON/OFF、VST (WET): ON/OFF CLICK REMOTE ON/OFF、CLICK LEVEL TRACK CONTROLPREV、NEXT、REC READY TRANSPORTCYCLE、追加、移動 ( 前後 )、REW、FWD、STOP、PLAY、 REC n8/n12 8 電気的特性 周波数 Internal44.1 kHz、48 kHz、88.2 kHz、96 kHz External44.1 kHz、48 kHz、88.2 kHz、96kHz ( 各 0.1% ) 全高調波歪GAIN: 最小0.003 % 以下

44、(1 kHz +18 dB、負荷 : 600 ) 周波数特性fs = 48 kHz20 Hz 20 kHz、+1、-3 dB +4 dB、負荷 : 600 (CH IN STEREO OUT)fs = 96 kHz20 Hz 40 kHz、+1、-3 dB +4 dB、負荷 : 600 114 dB DA (STEREO OUT) ( 最大出力時 S/N 比 )106 dB AD + DA ( STEREO OUT) & -128 dB 等価入力 (20 Hz 20 kHz)-95 dB 残留出力、STEREO : 最小 Rs = 150 GAIN: 最大-95 dB (99 dB S/N)

45、STEREO OUT PAD: STEREO : 値、全 : 最小値 GAIN: -60dB-60 dB (64 dB S/N) STEREO OUT PAD: STEREO : 値、 (1 所 ): 値 最大利得n1284 dB CH1 8 STEREO OUT/C-R OUT 50 dB CH9 12 STEREO OUT/C-R OUT 76 dB CH1 8 AUX OUT 42 dB CH9 12 AUX OUT n876 dB CH1 4 STEREO OUT/C-R OUT 42 dB CH5 8 STEREO OUT/C-R OUT 1 kHzGAIN: 最小n12-86 dB

46、 CH1 8 入力間-80 dB CH9 12 n8-86 dB CH1 4 -80 dB CH5 8 入出力仕様 入力Type 入力 定格入力最大入力入力 INPUT A ( ) CH1 8 (n12) CH1 4 (n8) XLR 、型、+48V 電源供給 -60 dBu +10 dBu+24 dBu3.5 k INPUT B ( ) CH1 8 (n12) CH1 4 (n8) TRS 、型-60 dBu +10 dBu+24 dBu 3.5 k (500 k Hi-Z = ON) INSERT INTRS 、型0 dBu+14 dBu10 k INPUT ( ) CH9 12 (n12

47、) CH5 8 (n8) RCA 、型-40 dBV -10 dBV+4 dBV10 k 、型-26 dBu +4 dBu+18 dBu10 k 2TR INRCA 、型-10 dBV+4 dBV10 k 出力Type 出力 定格出力最大出力定格負荷 ST OUT TRS 、型+4 dBu+18 dBu600 RCA 、型-10 dBV+4 dBV10 k C-R OUTTRS 、型+4 dBu+18 dBu600 AUX OUT (n12 )TRS 、型+4 dBu+18 dBu600 INSERT OUTTRS 、型+4 dBu+18 dBu10 k C-R PHONES, AUX PHO

48、NESTRS 、型 4 mW + 4 mW25 mW + 25 mW8 12 mW + 12 mW75 mW + 75 mW40 9 n8/n12 PANEL LAYOUT（） 1. Top Panel（） ? ? ? ? ? ? ? ? ? ? q Channel Control section: (P.10) w Master Control section: (P.11) e Meter section: (P.12) r Control Room section: (P.13) t DAW Remote Control section: (P.14) q 部： （P.10） w 部： （P.11） e 部： （P.12） r CONTROL ROOM 部： （P.13） t DAW REMOTE CONT