Yamaha-EMX3000-mix-sm 维修电路原理图.pdf

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1、EMX30001SERVICE MANUALPA01156920010501-135000 1.389K-0221 Printed in Japan 2001.4HAMAMATSU, JAPAN CONTENTSThis document is printed on chlorine free (ECF) paper with soy ink.SPECIFICATIONS. 3/5PANEL LAYOUT. 7CIRCUIT BOARD LAYOUT. 10WIRING. 11DIMENSIONS. 11BLOCK & LEVEL DIAGRAM.12DISASSEMBLY PROCEDURE

2、. 14LSI PIN DESCRIPTION. 17IC BLOCK DIAGRAM. 19CIRCUIT BOARDS. 20INSPECTIONS. 27/33CIRCUIT DIAGRAMS.C1PARTS LIST POWERED MIXERRadioFans.CN 收音机爱 好者资料库EMX30002WARNING: THIS APPARATUS MUST BE EARTHEDIMPORTANTTHE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE: GREEN-AND-YELL

3、OW : EARTH BLUE : NEUTRAL BROWN : LIVEAs the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:The wire which is coloured GREEN and YELLOW must be connected to the terminal in the plug whi

4、ch is marked by the letter E or by the safety earth symbol or coloured GREEN and YELLOW.The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.The wire which is coloured BROWN must be connected to the terminal which is marked with the le

5、tter L or coloured RED.* This applies only to products distributed by YAMAHA KEMBLE MUSIC (U.K.) LTD.WARNINGComponents having special characteristics are marked and must bereplaced with parts having specification equal to those originally installed.IMPORTANT NOTICEThis manual has been provided for t

6、he use of authorized Yamaha Retailers and their service personnel. It has been assumedthat basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and under-stood by the users, and have therefore not been restated.WARNING :Failure to follow appropr

7、iate service and safety procedures when servicing this product may result in per-sonal injury, destruction of expensive components and failure of the product to perform as specified. Forthese reasons, we advise all Yamaha product owners that all service required should be performed by anauthorized Y

8、amaha Retailer or the appointed service representative.IMPORTANT :This presentation or sale of this manual to any individual or firm does not constitute authorization certifi-cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship ofany form.The data

9、 provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, andservice departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitableand changes in specification are subject to change without

10、 notice or obligation to retrofit. Should any discrepancy appear toexist, please contact the distributors Service Division.WARNING :Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumulated by grounding yourself to the ground bus in the unit (

11、heavy gauge black wires connect tothis bus.)IMPORTANT :Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply powerto the unit.WARNING: CHEMICAL CONTENT NOTICE!The solder used in the production of this product contains LEAD. In addition, other electrical/electr

12、onic and/or plastic (Whereapplicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possiblyother entities) to cause cancer and/or birth defects or other reproductive harm.DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOU

13、R MOUTH FOR ANY REASON WHATSO EVER!Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or exposeeyes to solder/flux vapor!If you come in contact with solder or components located inside the enclosure of this product, wash your hands before ha

14、ndlingfood.RadioFans.CN 收音机爱 好者资料库EMX30003SPECIFICATIONSGeneral specificationsMaximum output powerSTEREO: 300 W+300 W/4 0.5% THD at 1 kHz215 W+215 W/8 0.5% THD at 1 kHzBRIDGE: 600 W/80.5% THD at 1 kHzFrequency response20 Hz20 kHz +1 dB, 3 dB1 W output into 8(SPEAKER OUT)Channel Gain control at minim

15、um.20 Hz20 kHz +1 dB, 3 dB+4 dB output into 600(ST OUT, MONO OUT, EFFECT SEND, MONITOR OUT)Channel Gain control at minimum.Total harmonic distortionLess than 0.5% 20 Hz20 kHz, 150 W output into 4 (SPEAKER OUT)Less than 0.3% 20 Hz20 kHz, +14 dB output into 600(ST OUT, MONO OUT, EFFECT SEND, MONITOR O

16、UT)Hum & noise(Average, Rs=150 )(with 20 Hz20 kHz BPF)128 dB equivalent input noise63 dB residual output noise (SPEAKER OUT)95 dB residual output noise (ST OUT, MONO OUT, EFFECT SEND, MONITOR OUT)87 dB(ST OUT, MONO OUT)ST master/MONO master fader at maximum level and all channel fader at minimum.64

17、dB (68 dB S/N)(ST OUT, MONO OUT)ST master/MONO master fader and 1 channel fader at maxi-mum level. And 1 channel Gain control at maximum.80 dB(EFFECT SEND, MONITOR OUT)Master fader at maximum level and all channel level control at minimum.Maximum voltage gain91 dBMIC IN to SPEAKER OUT (CH 18)64 dBMI

18、C IN to ST OUT(CH 18)38 dBLINE IN to ST OUT(CH 18)38 dBST IN to ST OUT(CH 9/10, 11/12)70 dBMIC IN to EFFECT SEND (CH 18)64 dBMIC IN to MONITOR OUT (CH 18)Crosstalk at 1 kHz70 dB adjacent input, 70 dB input to outputMIC IN gain control44 dB variablePOWER AMP level control14 dB variableInput channel e

19、qualizationHIGH10 kHzshelving*MID2.5 kHzpeakingLOW100 Hzshelving* Turn over/roll off frequency of shelving: 3 dB below maximum variable level.Meters13 points LED meterCH peak indicatorsRed LED on each channel lits when POST EQ signal reaches the level 3 dB below clipping.LimiterComp. : THD0.5%LIMIT

20、indicatorsTurn on THD0.5%Graphic equalizer7 bands (125, 250, 500, 1k, 2k, 4k, 8k Hz), 12 dB MaximumInternal digital effect16 programs, PARAMETER controlFoot switchDigital effect mute: on/offProtection circuit (Power amp)POWER switch on/off mute, DC detection, TEMP (heatsink temp. 90C)Fan circuitstop

21、 low speed (50C) variable high speed (70C)Phantom power+48 V is supplied to electrically balanced inputs.OptionFC5 (Foot switch)Power requirement/Power consumptionUSA and Canada:120 V AC 60 Hz, 250 WEurope:230 V AC 50 Hz, 300 WOther:240 V AC 50 Hz, 300 WDimensions (WxHxD)480XX125 454 mmWeight16 kgAc

22、cessoriesPower cord, Owners ManualEMX30004Input terminalsGain trimActual load impedanceFor use withnominal Input levelConnectors on mixerSensitivity11. Sensitivity is the lowest level that can produce an output of +4 dB (1.23 V) or the nominal output level when the unit is set at maximum gain. (All

23、fader and level controls are at maximum position.)Max. before clipMIC INPUT (18)MAXMIN5 k50600 Mics60 dB (775 V)16 dB (123 mV)40 dB (7.75 mV)+4 dB (1.23 V)XLR-3-31 type22. Balanced. (T=HOT, R=COLD, S=GND)LINE INPUT (18)MAXMIN50 k600 Lines34 dB (15.5 mV)+10 dB (2.45 V)14 dB (155 mV)+30 dB (24.5 V)PHO

24、NE JACK (TRS)2ST INPUT (912)MAXMIN10 k34 dB (15.5 mV)+10 dB (2.45 V)14 dB (155 mV)+30 dB (24.5 V)PHONE JACK33. Unbalanced.ST SUB IN (1, 2)+4 dB (1.23 V)+20 dB (7.75 V)TAPE IN (L, R)10 dBV (316 mV)+10 dBV (3.16 V)PHONO JACKCH INSERT IN (14)0 dB (775 mV)+20 dB (7.75 V)PHONE JACK (I/O)44. Unbalanced. (

25、T=OUT, R=IN, S=GND)POWER AMP IN (L, R)+4 dB (1.23 V)55. POWER AMP level control= maximum (+4)In these specifications when dB represents a specific voltage, 0 dB is referenced to 0.775 Vrms, 0 dBV is referenced to 1 Vrms.+18 dB (6.16 V)5PHONE JACK3Output terminalsActual source impedanceFor use withno

26、minalOutput levelConnectors on mixerNominalMax. before clipingST OUT 1, 2 (L/R)150600 Lines+4 dB (1.23 V)+20 dB (7.75 V)PHONE JACK (TRS)11. Impedance balaned. (T=HOT, R=COLD, S=GND)MONO OUTEFFECT SENDMONITOR OUT 1, 2REC OUT (L/R)60010 k Lines10 dBV (316 mV)+10 dBV (3.16 V)PHONO JACKCH INSERT OUT (14

27、)0 dB (775 mV)+20 dB (7.75 V)PHONE JACK (I/O)22. Unbalanced. (T=OUT, R=IN, S=GND)C-R/PHONES OUTfor PHONES10040 Phones3 mW100 mWST PHONE JACK33. Unbalanced. (T=L, R=R, S=GND)for C-R OUT10 k Lines+4 dB (1.23 V)+20 dB (7.75 V)SPEAKER OUT 1, 2 (L/R)0.14/8 Speaker300 W/4PHONE JACK44. Unbalanced.BRIDGE OU

28、T8 Speaker600 W/8PHONE JACK55. Balanced. (T=HOT, S=COLD)In these specifications when dB represents a specific voltage, 0 dB is referenced to 0.775 Vrms, 0 dBV is referenced 1 Vrms.Input specificationsOutput specificationsEMX30005EMX30006EMX30007PANEL LAYOUTControl Panel Channel Control SectionPFLPFL

29、AB100100100RL+15-15GAINGAINMONI 1MONI 2EFFECTPANHIGHMIDLOW+15-15+15-15-34-16-60+10-34+10PEAK100100100RL+15-15MONI 1MONI 2EFFECTBALHIGHMIDLOW+15-15+15-15PEAK0510152040502530051015204050253019 1012345678910GAIN controlA/B switch (Channels 9/1011/12 only)PEAK indicatorEqualizer controls (HIGH, MID, LOW

30、)Monitor 1/2 controls (MONI 1/2)Effect control (EFFECT)PAN (panpot) control (Channels 18)BAL (balance) control (Channels 9/1011/12)PFL (pre-fader listen) switchChannel fader Stereo Sub Input SectionPFL100100100100100100MONI 1MONI 2STMONI 1MONI 2STST SUB 2PFLST SUB 111121314MONI 1 (monitor 1) control

31、MONI 2 (monitor 2) controlST (stereo) controlPFL (pre-fader listen) switchEMX30008151617181920 Master Control SectionAFLAFLAFLAFLAFL05101520405025300510152040502530051015204050253005101520405025300510152040502530MONOMONI 2MONI 1ST 1EFFECT Tape in SectionTAPE IN100STPFL Digital effect SectionDIGITAL

32、EFFECTPARAMETERPROGRAM8910314212111234910111213141516567814716615135MONI 1MONI 2ONMAXMIN100STVOCAL ECHO 1VOCAL REVERB 1HALL 1PLATE 1PLATE 2PLATE 3GATE REVERBHALL 2HALL 3ROOMVOCAL REVERB 2VOCAL REVERB 3VOCAL REVERB 4VOCAL ECHO 2VOCAL ECHO 3VOCAL ECHO 4100100 Graphic equalizer SectionGRAPHIC EQUALIZER

33、ON8K4K2K1K5002501258K4K2K1K500250125606+12-12606+12-12MONI 1 (monitor 1) faderMONI 2 (monitor 2) faderEFFECT faderST 1 (stereo 1) faderMONO (monaural) faderAFL (after fader listen)2122ST (stereo) controlPFL (pre-fader listen) switch2324252627MONI 1/2 (monitor 1/2) controlST (stereo) controlPROGRAM s

34、electorON switchPARAMETER control2829Graphic equalizerON switchEMX3000912345678910111213 Power amp SectionPOWER AMPST1 LMONI 1MONO(BRIDGE)ST1 RMONOLIMITERLEVELBRIDGE+4+18+4+18LR Other indicators and controlsPOWERST 1LRPHANTOM +48VONOFFC-R/PHONESST 2(1-8ch)+8+5+3+10-1-3-5-7-10-15-20100100PEAK Input/O

35、utput pabelI OI OI OI OAAAABBBBSTSUB 1STSUB 2+4dB+4dBTAPERECST 1-10dBV-10dBV+4dBST 2+4dB+4dB+4dB+4dB+4dBMONIMONIMONOEFFECTFOOT SW12BRIDGEP.AMPINC-RPHONES9 L11 LLLLRLRRL9 L10 R12 RRR10 R11 L12 R(MONO)(MONO)(MONO)(MONO)9 1011 12INPUTOUTPUTLRLR12345678INSERTLINEINSERTLINEINSERTLINEINSERTLINELINELINELIN

36、ELINEMICMICMICMICMICMICMICMICINSERTOUT IN0dB I O303132LIMITER indicatorLEVEL controlsPower amp select switch3334353637Peak level indicatorPOWER indicatorPHANTOM (+48V) switch and indicatorC-R/PHONES (control room/headphones)controlST 2 (stereo 2) controlChannel input jacks (MIC, LINE) 18INSERT I/O (

37、insert) jacks 14Channel input jacks 912AChannel input jacks 912BST SUB 1 (stereo sub 1) jacksST SUB 2 (stereo sub 2) jacksTAPE jacksP.AMP IN (power amp input) jacksREC (record) jacksST 1 (stereo 1) jacksST 2 (stereo 2) jacksMONI 1 (monitor 1) jackMONI 2 (monitor 2) jackMONO (monaural) jackEFFECT jac

38、kC-R/PHONES (control room/headphones) jackFOOT SW (foot switch) jackEMX300010 Rear panelAC IN2121BRIDGEON OFFR/MONOL/MONI 1SPEAKERSPOWER123CIRCUIT BOARD LAYOUTPFL100100100100100100MONI 1MONI 2STMONI 1MONI 2STST SUB 2PFLST SUB 1AFLAFLAFLAFLAFL0510152040502530051015204050253005101520405025300510152040

39、5025300510152040502530MONOMONI 2MONI 1ST 1EFFECTTAPE IN100STPFLDIGITAL EFFECTPARAMETERPROGRAM8910314212111234910111213141516567814716615135MONI 1MONI 2ONMAXMIN100STVOCAL ECHO 1VOCAL REVERB 1HALL 1PLATE 1PLATE 2PLATE 3GATE REVERBHALL 2HALL 3ROOMVOCAL REVERB 2VOCAL REVERB 3VOCAL REVERB 4VOCAL ECHO 2VO

40、CAL ECHO 3VOCAL ECHO 4100100GRAPHIC EQUALIZERON8K4K2K1K5002501258K4K2K1K500250125606+12-12606+12-12POWER AMPST1 LMONI 1MONO(BRIDGE)ST1 RMONOLIMITERLEVELBRIDGE+4+18+4+18LRPOWERST 1LRPHANTOM +48VONOFFC-R/PHONESST 2(1-8ch)+8+5+3+10-1-3-5-7-10-15-20100100PEAKPFLABGAIN-34+10100100100RL+15-15MONI 1MONI 2E

41、FFECTBALHIGHMIDLOW+15-15+15-15PEAK0510152040502530PFLABGAIN-34+10100100100RL+15-15MONI 1MONI 2EFFECTBALHIGHMIDLOW+15-15+15-15PEAK051015204050253011 129 10PFL100100100RL+15-15GAINMONI 1MONI 2EFFECTPANHIGHMIDLOW+15-15+15-15-34-16-60+10PEAK0510152040502530PFL100100100RL+15-15GAINMONI 1MONI 2EFFECTPANHI

42、GHMIDLOW+15-15+15-15-34-16-60+10PEAK0510152040502530PFL100100100RL+15-15GAINMONI 1MONI 2EFFECTPANHIGHMIDLOW+15-15+15-15-34-16-60+10PEAK0510152040502530PFL100100100RL+15-15GAINMONI 1MONI 2EFFECTPANHIGHMIDLOW+15-15+15-15-34-16-60+10PEAK0510152040502530PFL100100100RL+15-15GAINMONI 1MONI 2EFFECTPANHIGHM

43、IDLOW+15-15+15-15-34-16-60+10PEAK0510152040502530PFL100100100RL+15-15GAINMONI 1MONI 2EFFECTPANHIGHMIDLOW+15-15+15-15-34-16-60+10PEAK0510152040502530PFL100100100RL+15-15GAINMONI 1MONI 2EFFECTPANHIGHMIDLOW+15-15+15-15-34-16-60+10PEAK0510152040502530PFL100100100RL+15-15GAINMONI 1MONI 2EFFECTPANHIGHMIDL

44、OW+15-15+15-15-34-16-60+10PEAK051015204050253012345678I OI OI OI OAAAABBBBSTSUB 1STSUB 2+4dB+4dBTAPERECST 1-10dBV-10dBV+4dBST 2+4dB+4dB+4dB+4dB+4dBMONIMONIMONOEFFECTFOOT SW12BRIDGEP.AMPINC-RPHONES9 L11 LLLLRLRRL9 L10 R12 RRR10 R11 L12 R(MONO)(MONO)(MONO)(MONO)9 1011 12INPUTOUTPUTLRLR12345678INSERTLI

45、NEINSERTLINEINSERTLINEINSERTLINELINELINELINELINEMICMICMICMICMICMICMICMICINSERTOUT IN0dB I OMAINMAINDSPDSP2/3PWR22/3PWR21/3PWR21/3PWR23/3PWR23/3PWR2PWR1PWR1SPEAKERS (speaker output) jacksPOWER switchAC inletEMX300011Units: mmDIMENSIONS168W: 480D: 454H: 125286CNM0112pin13pin2pin4pin6pin13pin3pin3pin3p

46、in3pin12pinCNM04CN103CN105CN106CN104CN101CN102CN102CN301CN101MAINDSPPWR1PWR2 3/3PWR2 2/3PWR2 1/3Power transformerAC INLETDC fanLocation12345DSP-PWR1MAIN-PWR1MAIN-DSPPWR1-PWR2 2/3PWR1-PWR2 3/32426&2426 3P 210L2426&2426 12P2426&2426 13PB&C #18 4PB&C #18 3P(V705810)(V705820)(V705830)(V702070)(V702080)C

47、onnector AssemblyRemarksParts No.2233144551WIRINGEMX300012IC101,201,301,401IC102, IC302IC502,IC702IC104,304IC103,303122655IC501,601,701,801657(3)(1)7IC504,704IC504, IC7049ch: IC901, IC90211ch: IC801, IC80210ch: IC901, IC90212ch: IC801, IC8029ch: IC90311ch: IC80310ch: IC90312ch: IC8039ch: IC90411ch:

48、IC80410ch: IC90412ch: IC8046(2)(1)76(2)(1)75757ST SUB1: ICD01ST SUB2: ICD023157ST SUB1: ICD01ST SUB2: ICD0231ICD0357ICD03313157ICE01ICE0267 21ICH0167ICH0121ICJ0121ICK0167ICK0121ICF0167 2172443311243124312431243124313123MAINCN101-1CNM04-1CN101CN101-2CN101-48CN101-911CNM04AACNM04-1CNM04-911CNM04-48BLO

49、CK & LEVEL DIAGRAMEMX3000131ICE02ICF02ICE0457ICE0357ICE0331ICJ01CNM01-8CNM01-10CN102-10RY102RY101CN102-8CN103-1CN103-31+2+76ICG0167ICG0121ICH0267ICH0221ICJ0267ICK0221ICK0267ICE0431ICM013ICM023112/3PWR2PWR1DSPCN101-1CNM04-1CN101-12CNM04-12CN101-13CNM04-13CN101-3CN101-2CN101-48CN101-911CNM04-2AACNM04-

50、11EMX300014DISASSEMBLY PROCEDUREFig.190: Bind Head Tapping Screw-B 3.0 X 6 MFZN2BL (EP600230)100: Bind Head Tapping Screw-B 3.0 X 6 MFZN2BL (EG340190)1.Panel Assembly and Bottom Assembly (Manhourrequirement: 5 min.)1-1.After removing the six (6) screws marked 90 and six(6) screws marked 100, lift th