Vestax-PMCCX-mix-sm 维修电路原理图.pdf

VESTAXSERVICE NOTEMODEL: PMC-CX1.SPECIFICATIONS P. 2 - P. 102.BLOCK DIAGRAM P. 113.CIRCUIT DIAGRAM P. 12 - P. 334.COMPONENTS LIST P. 34 - P. 42Vestax Corporation Service Department(2006-09-05)RadioFans.CN 收音机爱 好者资料库5FUNCTIONSgyggTOP PANELMIC/LINE SECTIONMONITOR SECTIONPROGRAM SECTIONMASTER SECTIONRadioFans.CN 收音机爱 好者资料库6qPHONO / LINE SELECTORSelects the signal (PHONO or LINE) to be sent to eachINPUT. All phono inputs are RIAA equalized. Connectthe output of a CD player, MD player, and tape deck tothe line input.wINPUT ASSIGN SWITCHSelects the input to be sent to each PGM channel.ePGM TRIM VOLUMEAdjusts the input level of each PGM channel. PGMLEVEL METER to indicate at about 0dB.rPGM BALANCE VOLUMEAdjusts the stereo balance for each PGM channel. Can be usedfor adjusting the unbalanced stereo image. Clockwise rotationfrom center position increases the volume of R over L channel.A counter clockwise rotation increases the volume of Lchannel over R.tPGM ISOLATOR HIAdjusts the HI frequency level of each PGM.yPGM ISOLATOR MIDAdjusts the MID frequency level of each PGM.uPGM ISOLATOR LOWAdjusts the LOW frequency level of each PGM.iISOLATOR ON/OFF SWITCHWhen set to OFF, a full range signal is transmittedregardless of the position of any isolator controls.oHI PASS FILTER SWITCHOn each PGM is a Hi Pass Filter Switch. Pressing thisswitch activates the high pass filter and when on theindicator LED will illuminate. The cut off frequenciesfor this filter can be adjusted by the SWEEP volumerotary dial !1. If this switch is pressed simultaneouslywith the Low Pass Filter switch the resulting effect is aNotch Pass Filter. !0LOW PASS FILTER SWITCHOn each PGM is a LOW pass filter switch. Pressing thisswitch activates the low pass filter for that PGM. Whenon the indicator LED will be illuminated and this filterwill remove sound frequencies below the cut off point.The cut off point can be adjusted by using the SWEEPvolume rotary dial !1. If this switch is pressedsimultaneously with the High Pass Filter switch theresulting effect is a Notch Pass Filter.!1SWEEP VOLUMEThis rotary dial is used to adjust the filter cut off points oneach PGM. A rotation to the left will result in a movementaway from the High frequencies towards the Lowfrequencies. Vice versa a movement to the right will resultin a movement away from the Low frequencies towards theHigh frequencies. !2C.F. ASSIGN SWITCHAssigns the signals from each of the PGM channels to eitherside of the crossfader or to MASRER OUT. There are threepositions;A ?The PGM is sent to the A position or leftposition of the crossfader.MASTER ?The PGM is sent directly to the master out.B ?The PGM is sent to the B position or rightside of the crossfader.!3CUE SWITCHSends a signal from each PGM to the monitor section forheadphone monitoring. When switch is on, an indicatorlights up.!4INPUT LEVEL VOLUMEAdjusts the Input level of each program. Typically thisfader is set to a position of 7-8. This fader is userreplaceable and may be changed easily by following thisusers guides instructions carefully. See HOW TOCHANGE THE FADER UNIT.*Replace this fader with a Vestax IF-500 replacementinputfader.PROGRAM SECTION12314109134567118127!5MASTER LEVEL VOLUMEAdjusts the signal level outputs from MASTER OUT1/2JACKS $7 on the rear panel.!6MASTER CUE SWITCHUsed to send the signal from MASTER OUT1/2 to themonitor section for headphone monitoring. When switchis on, an indicator lights up.!7CF CURVE VOLUMEdjusts the crossfader curve. A clockwise rotation gives asleep crossfade which is good for scratching and cutting.whereas a counter clockwise rotation gives a gentlecrossfade, good for long running mixes.!8MASTER LEVEL METERThe VU analog level meters indicate the L and R outputs.!9PGM LEVEL METERThe LED bar level meters indicate the PGM channel.0BOOTH MONITOR EQ VOLUMEAdjusts the HI/MID/LOW frequencies for the BOOTHOUT.1BOOTH MONITOR LEVEL VOLUMEAdjusts the output level of BOOTH MONITOR.2BOOTH MONITOR MUTE SWITCHThis switch mute the signal being sent to the BOOTHOUT.3ANTI PHASE ON / OFF SWITCHThis switch is used to activate an antiphase effect on theMaster Isolator Section. Essentially, an antiphase flips theisolator curve upside down on both the low and mid frequencyranges, which thereby creates a reverb type effect on the signalbeing outputted. 4MASTER ISOLATOR HIThis rotary dial section can be used to isolate the Hifrequencies on any MASTER SECTION input signal. 5MASTER ISOLATOR MIDThis rotary dial section can be used to isolate Mid frequencieson any MASTER SECTION input signal. 6MASTER ISOLATOR LOWThis rotary dial section can be used to boost the Lowfrequencies on any MASTER SECTION input signal. 7ISOLATOR ON / OFF SWITCHThis switch is used to turn the Master Isolator Volume Sectioneither on or off. When set to the OFF position the full rangeof input signal being sent to the MASTER section will beheard regardless of the position of the Master Isolator Volumerotary dials. 8CROSS FADERMixes the signals assigned by the CROSSFADER ASSIGNSWITCHES to either side of the crossfader. When thecrossfader is set in the center position, both the left and rightsignals will be heard. This fader is user replaceable and may bechanged easily by following this user guides instructionscarefully. See HOW TO CHANGE THE FADER UNIT.*Replace this fader with a Vestax CF-50 replacementinputfader.MASTER SECTION181917212227232628252420151683332313029373635349SUB MIC LEVEL VOLUMEAdjusts the input level of the SUB MIC input.#0MAIN MIC / SUB LINE SELECTORSelects between MAIN MIC and SUB LINE input.#1MIC / LINE EQ VOLUMEAdjusts the HI and LOW frequencies for the signalchosen by MAIN MIC / SUB LINE SELECTOR.#2MIC / LINE LEVEL VOLUMEAdjusts the input level of the MAIN MIC or SUB LINEinput.#3MIC / LINE CUE SWITCHSends the signal from the MIC or LINE channel to themonitor section for headphone monitoring. When switch ison, an indicator lights up.#4SPLIT / STEREO SELECTORWhen this switch is set to SPLIT, the master signal isalways heard through the right ear-cup of the headphone.The signal selected by each CUE SWITCH will be heardin the left ear-cup. This enables both programs to bemonitored simultaneously, thus assisting in beat mixing.When this switch is set to STEREO no master output isheard in the headphones, and only the signal selected byeach CUE SWITCH will be heard in both ear-cups.#5HEADPHONE EQ VOLUMEAdjusts the HI and LOW frequencies for Headphonemonitoring.#6HEADPHONE LEVEL VOLUMEAdjusts the headphone monitor level.#7PHONES JACKUse this jack to connect headphones. Headphones withan impedance of 8ohm to 600ohm can be used on thisunit.*For best sound quality Vestax recommends usingHeadphones with 150ohm impedance.MIC / LINE SECTIONMONITOR SECTION#8MAIN/SUB MIC JACKMAIN MIC: XLR JACK (BALANCED), SUB MIC:PHONE JACK (UNBALANCED)Input jack for MIC. #9LINE INPUT JACKLINE: RCA PIN JACK, SUB LINE: 1/4 PHONE JACK(UNBALANCED)Input connectors for line level equipment such as CDplayers, CD-R/RW players, MD players, tape decks,DVD players, DAT and VTR etc.$0PHONO INPUT JACK RCA PIN JACKInput jacks for turntables. Connect turntables equippedwith MM (pick up) cartridge.$1GND TERMINALConnect this terminal to the ground lead of the turntable.This will help to reduce unnecessary noise.$2INPUT LEVEL SELECT SWITCH-10/0dBSelect the attenuation level for the input.$3BOOTH OUT JACK1/4 PHONE JACK (UNBALANCED), XLR JACK(BALANCED)Connects to the DJ booth monitors. This signal is identical to theHEADPHONE OUT signal.$4BOOTH OUT LEVEL SELECT SWITCHSelect the attenuation level for the BOOTH OUT.$5MIC MONITOR IN/OUT SWITCHSelect whether the signal connected to MAIN/SUB MICis mixed with the signal outputted from MASTEROUT1/2.$6REC OUT JACK RCA PIN JACKConnects to the input jack of a recording device IE, taperecorder, MD, DAT, etc. The output level of this jack isfixed and does not change with the MASTER LEVEL.9REAR PANELHOW TO CHANGE THE FADER UNIT385039444546494341404247485251$7MASTER OUT 1/2 JACK1/4 PHONE JACK (UNBALANCED), XLR JACK(BALANCEDConnect to the input on a power amplifier. These jacks arePhone type for consumer applications. This mixer has twosets of MASTER OUT jacks so that the each output levelcan be set separately. Therefore, the MASTER OUT canbe used for main output or sub output IE. One for themain area and the other for entrance.$8MASTER OUT LEVEL SELECT SWITCH -10/0dBSelect the attenuation level for the BOOTH OUT.$9MASTER LOOP SEND JACK 1/4 PHONE JACKConnects the input terminal of an external effector.(Delay, Reverb, etc.)%0MASTER LOOP RCV JACK 1/4 PHONE JACKConnects the output terminal of an external effector.%1POWER SWITCHPower on/off.%2AC IN JACKConnect the Vestax AC-20 , AC adaptor.10Change to IF-500q Remove the fader knob. (See fig-a)w Remove the 4 screws which fix the input fader panel to the mixer. (See fig-b)e Remove the 2 screws which fix the input fader. (See fig-c) r Remove the input fader, and carefully remove the multi-cable connecter from the fader unit. (See fig-d)t Replace the fader unit making sure to that the connector wires are securely fastened before carefully positioning the fader unitand affixing with screws.INPUT FADERHOW TO CHANGE THE FADER UNITfig-afig-bfig-cfig-dChange to CF-50 q Remove the fader knob and 4 screws which fix the crossfader panel, and the carefully remove the panel. (See fig-e)w Remove the 2 screws affixing the crossfader. (See fig-f)e Carefully remove the multi-cable connector from the fader unit. (See fig-g)r Remove the fader knob and the fader panel of the new CF-50. (See fig-h)t Attach the fader panel to the new CF-50.y Replace the fader unit making sure to that the connector wires are securely fastened before carefully positioning the fader unitand affixing screws.11CROSS FADERfig-efig-ffig-gfig-h13SIZE14SPECIFICATIONMAIN MIC（XLR FEMALE 2PIN HOT BALANCED） -50dBv -35dBv 1.0K -50.SUB MIC （6.3 PHONE JACK UNBALANCED） -50dBv -35dBv 1.0K -46.PHONO 14 L/R （RCA PIN JACK） -46dBv -35dBv 59K +14dLINE 14 SUB L/R （RCA PIN JACK） 0dBv +12dB 35K 0dBvMASTER LOOP RCV（6.3 PHONE JACK UNBALANCED） 0dBv +12dB 50K MASTER1/2 L/R（XLR MALE 2PIN HOT BALANCED） +4dBv +22dB 600over/150 0dBvMASTER1/2 L/R（6.3 PHONE JACK UNBALANCED） 0dB,-10dB +22dB 10Kover/220 +4dBREC OUT（RCA PIN JACK） -10dB +12dB 10K 0dBvBOOTH L/R（XLR MALE 2PIN HOT BALANCED） +4dBv +22dB 600over/150 0dBvBOOTH L/R（6.3 PHONE JACK UNBALANCED） 0dB,-10dB +22dB 10Kover/220 MASTER LOOP SEND（6.3 PHONE JACK UNBALANCED） 0dBv +22dB 10Kover/220 0dBHEADPHONE（6.3 PHONE JACK） 190mW 8over/47 MIC 30Hz20KHz 3dB POWER SUPPLY AC20V 30HzdB LINE 30Hz20KHz 1.5dB POWER REQUIREMENT 45W B MIC 60dB DIMENSION （WHD） 482122308 （mm）A LINE 75dB WEIGHT 7.0kg m） 80dB INPUT SECTIONOUTPUT SECTIONS/N RATIOCROSSFADER CROSSTALKCHANNEL CROSSTALK 65dBFREQUENCY RESPONSEFADER ATTENUATION 80dBNOMINAL INPUTMAXIMUM INPUTIMPEDANCE RATED OUTPUTMAXIMUM OUTPUTIMPEDANCE12BLOCKDIAGRAMSHEETDATEDESIGNDRAWING_No.TITLEKTPMC-CXFN=Pmc-CX-SC11Pmc-CX-PHONO 1-RPHONO 1-LLINE 1-RLINE 1-LLINE 2-RLINE 2-LPHONO 2-LPHONO 2-R-10dBVATT-1000dBV-10dBVATT-1000dBV-45dBV-35dBVATT-100-45dBV-35dBVATT-100SC11-INPUT PCB PCBPmc-CX-P11_INPHONO 3-RPHONO 3-LPHONO 4-RPHONO 4-LLINE 3-RLINE 3-LLINE 4-RLINE 4-LP1LL1RP2LL2RL1LP1RL2LP2RP4LL4RP3LL3RL3LP3RL4LP4R1PFL1PFL2PFL3PFL1PFL2PFL3+12VGND2GNDVEEVCC+12VGND2GNDVEEVCCP32_MA-M(SC32)VCCGNDVEEP13_PGM-1P13_PGM-3P13_PGM-2PGM-RCUE-LCUE-RPGM-LVCCVEEGNDVCCVEEGNDPGM-RCUE-LCUE-RPGM-LVCCVEEGNDPGM-RPGM-LCUE-LCUE-RPFLPFLPFLGNDCUE-RCUE-LPGM-LPGM-RCUE MA(SP)MIC RMIC LP31_MA(SC31)CUE-LCUE-RREV 1.402004-4PGM-LPGM-RPGM-LPGM-RPGM-LPGM-RVEEVCCP21_MIMIC RMIC LCUE MA(SP)CUE-LCUE-RGNDVEEVCCR110100kR401kR4268kR4168kR391kC1410u/50V+R37470kR291kC1010u/50V+R31100kR301kR32100kC1310u/50V+R38470kR461.5kR451.5kC1110u/50V+R43470kC1210u/50V+R44470kR112100kR111100kR11470kR12470kC610u/50V+R131kR1568kC3710pC43222C42681R241.5MR23120kR201.5kC4910u/50V+C510u/50V+C3810pR1668kC44222C45681R191.5kC4610u/50V+R1470kR2470kC210u/50V+R31kR5100kC3310pC3510pC310u/50V+R17470kR18470kC410u/50V+R21680R251.5MR22680R920kC110u/50V+R41kC3410pR6100kR1020kC3610pC4010u/50V+R105100kR106100kR107100kR108100kR48680R501.5MR49120kR47680R511.5MR52120kR3520kR3620kR109100kR27470kC910u/50V+C4810pC59222C58681C6210u/50V+C5510pC60222C61681C5710u/50V+C5610pC5410pC5110u/50V+C4710pC5310pC5010u/50V+C4110u/50V+R141kR26120kC1647u/25V+C1547u/25V+C847u/25V+C747u/25V+J5aPJ-4PST6764R28470kJ6dPJ-4PST6764SW32dSW S4-2SSSF141000J6cPJ-4PST6764SW32cSW S4-2SSSF141000J6bPJ-4PST6764SW32bSW S4-2SSSF141000J6aPJ-4PST6764SW32aSW 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S4-2SSSF141000J7aPJ-4PST6764J7cPJ-4PST6764SW33dSW S4-2SSSF141000SW34aSW S4-2SSSF141000J7dPJ-4PST6764J8aPJ-4PST6764SW34bSW S4-2SSSF141000J8bPJ-4PST6764SW34cSW S4-2SSSF141000SW34dSW S4-2SSSF141000J8cPJ-4PST6764J8dPJ-4PST6764VCCVEEU6aNJM458023418U6bNJM4580657VCCVEEU5aNJM458023418U5bNJM4580657VCCVEEU8aNJM458023418U8bNJM4580657VCCVEEU7aNJM458023418U7bNJM4580657R8610kR8510kR6010kR5910kSW33cSW S4-2SSSF141000R13522kU9bNJM4580657U9aNJM458023418VEEVCCR13622kC9147u/25V+C9247u/25V+C3947u/25V+C5247u/25V+VCCVEECNB1B8B-XH-A12345678CNB2B8B-XH-A12345678CNA345P-SCN12345C9310pC9410pCNB22S8B-XH-A12345678CNB12S8B-XH-A12345678CNB13S8B-XH-A12345678CNB14S8B-XH-A12345678CNB33S10B-XH-A12345678910C2010u/50V+R13322kR12522kR13033kR12933kR12833kR12733kR12133kR12233kR13422kR12622kR12322kC9510u/50V+R12422kC9610u/50V+C9710u/50V+C9810u/50V+C10010u/50V+C9910u/50V+R13133kR13233kCNB27S8B-XH-A12345678INPUT LEVEL SWITCHESINPUT LEVEL SWITCHESSHEETDATEDESIGNDRAWING_No.TITLEKTINPUT SW PCBPMC-CXSC12FN=Pmc-CX-SC12Pmc-CX-P12_IN-SPmc-CX-L3LL3RP3LP3RL4LL4RP4LP4R2-REV 1.30a2004-2P1LL1LP1RL1RP1RP1LL1LL1RL2RL2LP2RP2LL2LP2LL2RP2RL3RP3LP4LL4RL3LP3RP4RL4LINPUT 1LINPUT 2LINPUT 3LINPUT 4LINPUT 1RINPUT 2RINPUT 3RINPUT 4RINPUT 1LINPUT 2LINPUT 3LINPUT 4LINPUT 1RINPUT 2RINPUT 3RINPUT 4RINPUT 1LINPUT 2LINPUT 3LINPUT 4LINPUT 1RINPUT 2RINPUT 3RINPUT 4RSW7bSW6PLBC-22SW7aSW6PLBC-22SW6bSW6PLBC-22SW6aSW6PLBC-22SW5bSW6PLBC-22SW5aSW6PLBC-22SW4bSW6PLBC-22SW4aSW6PLBC-22CNA38P