Yamaha-EMX-3000-Service-Manual电路原理图.pdf

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1、EMX3000 1 SERVICE MANUAL PA 011569 20010501-135000 1.389K-0221 Printed in Japan 2001.4 HAMAMATSU, JAPAN CONTENTS This document is printed on chlorine free (ECF) paper with soy ink. SPECIFICATIONS. 3/5 PANEL LAYOUT. 7 CIRCUIT BOARD LAYOUT. 10 WIRING. 11 DIMENSIONS. 11 BLOCK & LEVEL DIAGRAM.12 DISASSE

2、MBLY PROCEDURE. 14 LSI PIN DESCRIPTION. 17 IC BLOCK DIAGRAM. 19 CIRCUIT BOARDS. 20 INSPECTIONS. 27/33 CIRCUIT DIAGRAMS.C1 PARTS LIST POWERED MIXER RadioFans.CN 收音机爱 好者资料库 EMX3000 2 WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLL

3、OWING CODE: GREEN-AND-YELLOW : EARTH BLUE : NEUTRAL BROWN : LIVE As 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

4、the terminal in the plug which 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 termin

5、al which is marked with the letter L or coloured RED. * This applies only to products distributed by YAMAHA KEMBLE MUSIC (U.K.) LTD. WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. IMPORTANT NOTICE

6、 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 under- stood by the users, and have therefore not been resta

7、ted. WARNING :Failure to follow appropriate 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. For these reasons, we advise all Yamaha product owners that all service requi

8、red 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 does not constitute authorization certifi- cation, recognition of any applicable technical capabilities, or establish a prin

9、cipal-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 departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and change

10、s 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 :Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by

11、 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 work before you apply power to the unit. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this pro

12、duct 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 reproductive harm. DO NOT PLACE

13、 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 with solder or components located

14、inside the enclosure of this product, wash your hands before handling food. RadioFans.CN 收音机爱 好者资料库 EMX3000 3 SPECIFICATIONS General specifi cations Maximum output power STEREO: 300 W+300 W/4 0.5% THD at 1 kHz 215 W+215 W/8 0.5% THD at 1 kHz BRIDGE: 600 W/80.5% THD at 1 kHz Frequency response 20 Hz2

15、0 kHz +1 dB, 3 dB 1 W output into 8 (SPEAKER OUT) Channel Gain control at minimum. 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 distortion Less than 0.5% 20 Hz20 kHz, 150 W output into 4 (SPEAKER OUT) Less

16、than 0.3% 20 Hz20 kHz, +14 dB output into 600 (ST OUT, MONO OUT, EFFECT SEND, MONITOR OUT) Hum & noise (Average, Rs=150 ) (with 20 Hz20 kHz BPF) 128 dB equivalent input noise 63 dB residual output noise (SPEAKER OUT) 95 dB residual output noise (ST OUT, MONO OUT, EFFECT SEND, MONITOR OUT) 87 dB (ST

17、OUT, MONO OUT) ST master/MONO master fader at maximum level and all channel fader at minimum. 64 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

18、 and all channel level control at minimum. Maximum voltage gain 91 dBMIC IN to SPEAKER OUT (CH 18) 64 dBMIC 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 in

19、put, 70 dB input to output MIC IN gain control44 dB variable POWER AMP level control14 dB variable Input channel equalization HIGH10 kHzshelving* MID2.5 kHzpeaking LOW100 Hzshelving* * Turn over/roll off frequency of shelving: 3 dB below maximum variable level. Meters13 points LED meter CH peak indi

20、catorsRed LED on each channel lits when POST EQ signal reaches the level 3 dB below clipping. LimiterComp. : THD0.5% LIMIT indicatorsTurn on THD0.5% Graphic equalizer7 bands (125, 250, 500, 1k, 2k, 4k, 8k Hz), 12 dB Maximum Internal digital effect16 programs, PARAMETER control Foot switchDigital eff

21、ect mute: on/off Protection circuit (Power amp)POWER switch on/off mute, DC detection, TEMP (heatsink temp. 90C) Fan circuitstop low speed (50C) variable high speed (70C) Phantom power+48 V is supplied to electrically balanced inputs. OptionFC5 (Foot switch) Power requirement/ Power consumption USA

22、and Canada:120 V AC 60 Hz, 250 W Europe:230 V AC 50 Hz, 300 W Other:240 V AC 50 Hz, 300 W Dimensions (WxHxD)480XX125 454 mm Weight16 kg AccessoriesPower cord, Owners Manual EMX3000 4 Input terminals Gain trim Actual load impedance For use with nominal Input level Connectors on mixer Sensitivity1 1.

23、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 fader and level controls are at maximum position.) Max. before clip MIC INPUT (18) MAX MIN 5 k50600 Mics 60 dB (775 V) 16 dB (123 mV) 40 dB (7.75 mV) +4

24、 dB (1.23 V) XLR-3-31 type2 2. Balanced. (T=HOT, R=COLD, S=GND) LINE INPUT (18) MAX MIN 50 k 600 Lines 34 dB (15.5 mV) +10 dB (2.45 V) 14 dB (155 mV) +30 dB (24.5 V) PHONE JACK (TRS)2 ST INPUT (912) MAX MIN 10 k 34 dB (15.5 mV) +10 dB (2.45 V) 14 dB (155 mV) +30 dB (24.5 V) PHONE JACK3 3. Unbalanced

25、. 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 JACK CH INSERT IN (14)0 dB (775 mV)+20 dB (7.75 V) PHONE JACK (I/O)4 4. Unbalanced. (T=OUT, R=IN, S=GND) POWER AMP IN (L, R) +4 dB (1.23 V)5 5. POWER AMP level control= maximum (+4) In these specifi ca

26、tions when dB represents a specifi c voltage, 0 dB is referenced to 0.775 Vrms, 0 dBV is referenced to 1 Vrms. +18 dB (6.16 V)5PHONE JACK3 Output terminals Actual source impedance For use with nominal Output level Connectors on mixer NominalMax. before cliping ST OUT 1, 2 (L/R) 150600 Lines+4 dB (1.

27、23 V)+20 dB (7.75 V) PHONE JACK (TRS)1 1. Impedance balaned. (T=HOT, R=COLD, S=GND) MONO OUT EFFECT SEND MONITOR OUT 1, 2 REC OUT (L/R) 60010 k Lines 10 dBV (316 mV)+10 dBV (3.16 V)PHONO JACK CH INSERT OUT (14)0 dB (775 mV)+20 dB (7.75 V) PHONE JACK (I/O)2 2. Unbalanced. (T=OUT, R=IN, S=GND) C-R/PHO

28、NES OUT for PHONES 100 40 Phones3 mW100 mW ST PHONE JACK3 3. 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) 0.1 4/8 Speaker300 W/4 PHONE JACK4 4. Unbalanced. BRIDGE OUT8 Speaker600 W/8 PHONE JACK5 5. Balanced. (T=HOT, S=COLD) In these specifi

29、cations when dB represents a specifi c voltage, 0 dB is referenced to 0.775 Vrms, 0 dBV is referenced 1 Vrms. Input specifi cations Output specifi cations EMX3000 5 EMX3000 6 EMX3000 7 PANEL LAYOUT Control Panel Channel Control Section PFLPFL A B 100 100 100 RL +15-15 GAINGAIN MONI 1 MONI 2 EFFECT P

30、AN HIGH MID LOW +15-15 +15-15 -34 -16-60 +10 -34+10 PEAK 100 100 100 RL +15-15 MONI 1 MONI 2 EFFECT BAL HIGH MID LOW +15-15 +15-15 PEAK 0 5 10 15 20 40 50 25 30 0 5 10 15 20 40 50 25 30 1 9 10 1 2 3 4 5 6 7 8 9 10 GAIN control A/B switch (Channels 9/1011/12 only) PEAK indicator Equalizer controls (H

31、IGH, MID, LOW) 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) switch Channel fader Stereo Sub Input Section PFL 100 100 100 100 100 100 MONI 1 MONI 2 ST MONI 1 MONI 2 ST ST SUB 2 PFL ST SUB

32、1 11 12 13 14 MONI 1 (monitor 1) control MONI 2 (monitor 2) control ST (stereo) control PFL (pre-fader listen) switch EMX3000 8 15 16 17 18 19 20 Master Control Section AFLAFLAFLAFLAFL 0 5 10 15 20 40 50 25 30 0 5 10 15 20 40 50 25 30 0 5 10 15 20 40 50 25 30 0 5 10 15 20 40 50 25 30 0 5 10 15 20 40

33、 50 25 30 MONOMONI 2MONI 1ST 1EFFECT Tape in Section TAPE IN 100 ST PFL Digital effect Section DIGITAL EFFECT PARAMETERPROGRAM 8 9 10 3 1 4 2 12 11 1 2 3 4 9 10 11 12 13 14 15 16 5 6 7 8 14 7 16 6 15 13 5 MONI 1MONI 2 ON MAXMIN 100 ST VOCAL ECHO 1VOCAL REVERB 1HALL 1PLATE 1 PLATE 2 PLATE 3 GATE REVE

34、RB HALL 2 HALL 3 ROOM VOCAL REVERB 2 VOCAL REVERB 3 VOCAL REVERB 4 VOCAL ECHO 2 VOCAL ECHO 3 VOCAL ECHO 4 100100 Graphic equalizer Section GRAPHIC EQUALIZER ON 8K4K2K1K500250125 8K4K2K1K500250125 6 0 6 +12 -12 6 0 6 +12 -12 MONI 1 (monitor 1) fader MONI 2 (monitor 2) fader EFFECT fader ST 1 (stereo

35、1) fader MONO (monaural) fader AFL (after fader listen) 21 22 ST (stereo) control PFL (pre-fader listen) switch 23 24 25 26 27 MONI 1/2 (monitor 1/2) control ST (stereo) control PROGRAM selector ON switch PARAMETER control 28 29 Graphic equalizer ON switch EMX3000 9 1 2 3 4 5 6 7 8 9 10 11 12 13 Pow

36、er amp Section POWER AMP ST1 L MONI 1 MONO (BRIDGE) ST1 R MONO LIMITER LEVEL BRIDGE +4+18+4+18 LR Other indicators and controls POWER ST 1 LR PHANTOM +48V ON OFF C-R/PHONES ST 2 (1-8ch) +8 +5 +3 +1 0 -1 -3 -5 -7 -10 -15 -20 100 100 PEAK Input/Output pabel I OI OI OI O A A A A B B B B ST SUB 1 ST SUB

37、 2 +4dB+4dB TAPEREC ST 1 -10dBV-10dBV +4dB ST 2 +4dB+4dB +4dB+4dB +4dB MONIMONI MONO EFFECT FOOT SW 12 BRIDGE P.AMP INC-R PHONES 9 L11 LLL LR LR RL 9 L 10 R12 RRR 10 R 11 L 12 R (MONO)(MONO)(MONO)(MONO) 9 1011 12 INPUTOUTPUT L R L R 12345678 INSERT LINE INSERT LINE INSERT LINE INSERT LINELINELINELIN

38、ELINE MICMICMICMICMICMICMICMIC INSERT OUT IN 0dB I O 30 31 32 LIMITER indicator LEVEL controls Power amp select switch 33 34 35 36 37 Peak level indicator POWER indicator PHANTOM (+48V) switch and indicator C-R/PHONES (control room/headphones)control ST 2 (stereo 2) control Channel input jacks (MIC,

39、 LINE) 18 INSERT I/O (insert) jacks 14 Channel input jacks 912A Channel input jacks 912B ST SUB 1 (stereo sub 1) jacks ST SUB 2 (stereo sub 2) jacks TAPE jacks P.AMP IN (power amp input) jacks REC (record) jacks ST 1 (stereo 1) jacks ST 2 (stereo 2) jacks MONI 1 (monitor 1) jack MONI 2 (monitor 2) j

40、ack MONO (monaural) jack EFFECT jack C-R/PHONES (control room/headphones) jack FOOT SW (foot switch) jack EMX3000 10 Rear panel AC IN 2121 BRIDGE ON OFF R/MONOL/MONI 1 SPEAKERS POWER 1 2 3 CIRCUIT BOARD LAYOUT PFL 100 100 100 100 100 100 MONI 1 MONI 2 ST MONI 1 MONI 2 ST ST SUB 2 PFL ST SUB 1 AFLAFL

41、AFLAFLAFL 0 5 10 15 20 40 50 25 30 0 5 10 15 20 40 50 25 30 0 5 10 15 20 40 50 25 30 0 5 10 15 20 40 50 25 30 0 5 10 15 20 40 50 25 30 MONOMONI 2MONI 1ST 1EFFECT TAPE IN 100 ST PFL DIGITAL EFFECT PARAMETERPROGRAM 89 10 3 1 4 2 12 11 1 2 3 4 9 10 11 12 13 14 15 16 5 6 7 8 14 7 16 6 15 13 5 MONI 1MONI

42、 2 ON MAXMIN 100 ST VOCAL ECHO 1VOCAL REVERB 1HALL 1PLATE 1 PLATE 2 PLATE 3 GATE REVERB HALL 2 HALL 3 ROOM VOCAL REVERB 2 VOCAL REVERB 3 VOCAL REVERB 4 VOCAL ECHO 2 VOCAL ECHO 3 VOCAL ECHO 4 100100 GRAPHIC EQUALIZER ON 8K4K2K1K500250125 8K4K2K1K500250125 6 0 6 +12 -12 6 0 6 +12 -12 POWER AMP ST1 L M

43、ONI 1 MONO (BRIDGE) ST1 R MONO LIMITER LEVEL BRIDGE +4+18+4+18 LR POWER ST 1 LR PHANTOM +48V ON OFF C-R/PHONES ST 2 (1-8ch) +8 +5 +3 +1 0 -1 -3 -5 -7 -10 -15 -20 100 100 PEAK PFL A B GAIN -34+10 100 100 100 RL +15-15 MONI 1 MONI 2 EFFECT BAL HIGH MID LOW +15-15 +15-15 PEAK 0 5 10 15 20 40 50 25 30 P

44、FL A B GAIN -34+10 100 100 100 RL +15-15 MONI 1 MONI 2 EFFECT BAL HIGH MID LOW +15-15 +15-15 PEAK 0 5 10 15 20 40 50 25 30 11 129 10 PFL 100 100 100 RL +15-15 GAIN MONI 1 MONI 2 EFFECT PAN HIGH MID LOW +15-15 +15-15 -34 -16-60 +10 PEAK 0 5 10 15 20 40 50 25 30 PFL 100 100 100 RL +15-15 GAIN MONI 1 M

45、ONI 2 EFFECT PAN HIGH MID LOW +15-15 +15-15 -34 -16-60 +10 PEAK 0 5 10 15 20 40 50 25 30 PFL 100 100 100 RL +15-15 GAIN MONI 1 MONI 2 EFFECT PAN HIGH MID LOW +15-15 +15-15 -34 -16-60 +10 PEAK 0 5 10 15 20 40 50 25 30 PFL 100 100 100 RL +15-15 GAIN MONI 1 MONI 2 EFFECT PAN HIGH MID LOW +15-15 +15-15

46、-34 -16-60 +10 PEAK 0 5 10 15 20 40 50 25 30 PFL 100 100 100 RL +15-15 GAIN MONI 1 MONI 2 EFFECT PAN HIGH MID LOW +15-15 +15-15 -34 -16-60 +10 PEAK 0 5 10 15 20 40 50 25 30 PFL 100 100 100 RL +15-15 GAIN MONI 1 MONI 2 EFFECT PAN HIGH MID LOW +15-15 +15-15 -34 -16-60 +10 PEAK 0 5 10 15 20 40 50 25 30

47、 PFL 100 100 100 RL +15-15 GAIN MONI 1 MONI 2 EFFECT PAN HIGH MID LOW +15-15 +15-15 -34 -16-60 +10 PEAK 0 5 10 15 20 40 50 25 30 PFL 100 100 100 RL +15-15 GAIN MONI 1 MONI 2 EFFECT PAN HIGH MID LOW +15-15 +15-15 -34 -16-60 +10 PEAK 0 5 10 15 20 40 50 25 30 12345678 I OI OI OI O A A A A B B B B ST SU

48、B 1 ST SUB 2 +4dB+4dB TAPEREC ST 1 -10dBV-10dBV +4dB ST 2 +4dB+4dB +4dB+4dB +4dB MONIMONI MONO EFFECT FOOT SW 12 BRIDGE P.AMP INC-R PHONES 9 L11 LLL LR LR RL 9 L 10 R12 RRR 10 R 11 L 12 R (MONO)(MONO)(MONO)(MONO) 9 1011 12 INPUTOUTPUT L R L R 12345678 INSERT LINE INSERT LINE INSERT LINE INSERT LINELINELINELI