Fostex-VM200-mix-sm维修电路原理图.pdf

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1、VM200Service ManualModelDIGITAL RECORDING MIXERRadioFans.CN 收音机爱 好者资料库SAFETY INSTRUCTIONSRead instructions - All the safety and operating instruc-tions should be read before the appliance is operated.Retain instructions - The safety and operating instructionsshould be retained for future reference.H

2、eed warnings - All warnings on the appliance and in theoperating instructions should be adhered to.Follow instructions - All operating and use instructionsshould be followed.Water and Moisture - The appliance should not be usednear water - for example, near a bathtub, washbowl,kitchen sink, laundry

3、tub, in a wet basement, or near aswimming pool, and the like.Carts and Stands - The appliance should be used onlywith a cart or stand that is recommended by the manufac-turer.An appliance and cart combination should be moved withcare. Quick stops, excessive force, and uneven surfacesmay cause the ap

4、pliance and cart combination to over-turn.Wall or Ceiling Mounting - The appliance should bemounted to a wall or ceiling only as recommended by themanufacturer.Ventilation - The appliance should be situated so that itslocation or position does not interfere with its proper ven-tilation. For example,

5、 the appliance should not be situ-ated on a bed, sofa, rug, or similar surface that may blockthe ventilation openings; or, placed in a built-in installa-tion, such as a bookcase or cabinet that may impede theflow of air through the ventilation openings.Heat - The appliance should be situated away fr

6、om heatsources such as radiators, heat registers, stoves, or otherappliances (including amplifiers) that produce heat.Power Sources - The appliance should be connected to apower supply only of the type described in the operatinginstructions or as marked on the appliance.Grounding or Polarization - T

7、he precautions that shouldbe taken so that the grounding or polarization means ofan appliance is not defeated.Power Cord Protection - Power supply cords should berouted so that they are not likely to be walked on orpinched by items placed upon or against them, payingparticular attention to cords at

8、plugs, convenience recep-tacles, and the point where they exit from the appliance.Cleaning - The appliance should be cleaned only as rec-ommended by the manufacturer.Nonuse Periods - The power cord of the appliance shouldbe unplugged from the outlet when left unused for a longperiod of time.Object a

9、nd Liquid Entry - Care should be taken so thatobjects do not fall and liquids are not spilled into the en-closure through openings.Damage requiring Service - The appliance should be ser-viced by qualified service personnel when:A.B.C.D.E.Servicing - The user should not attempt to service the ap-plia

10、nce beyond that described in the operating instruc-tions. All other servicing should be referred to qualifiedservice personnel.REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENCAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,DO NOT REMOVE COVER (OR BACK).NO USER-SE

11、RVICEABLE PARTS INSIDE.TO PREVENT ELECTRIC SHOCK, MATCHWIDE BLADE OF PLUG TO WIDE SLOT,FULLY INSERT.POUR VITER LES CHOCS LECTRIQUES,INTRODUIRE LA LAME LA PLUS LARGE DELA FICHE DANS LA BORNE CORRE-SPONDANTE DE LA PRISE ET POUSSERJUSQU AU FOND.CAUTION:ATTENTION:The exclamation point within an equilate

12、raltriangle is intended to alert the user to thepresence of important operating and mainte-nance (servicing) instructions in the literatureaccompanying the appliance.The lightening flash with arrowhead symbol,within an equilateral triangle, is intended toalert the user to the presence of uninsulated

13、“dangerous voltage” within the products en-closure that may be of sufficient magnitude toconstitute a risk of electric shock to persons.“WARNING”“TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOIS-TURE.”1.2.3.4.5.6.7.8.The power supply cord or the plug has been

14、 damaged;orObjects have fallen, or liquid has been spilled into theappliance; orThe appliance has been exposed to rain; orThe appliance does not appear to operate normally orexhibits a marked changed in performance; orThe appliance has been dropped, or the enclosuredamaged.9.10.11.12.13.14.15.16.17.

15、RadioFans.CN 收音机爱 好者资料库VM2003Parts marked with this sign are safety critical components. They must always be replaced with identicalcomponents. Refer to the Fostex Parts List and ensure exact replacement.CAUTIONTABLE OF CONTENTS1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . .

16、. . . . . . .2. CONTROLS, INDICATORS & CONNECTORS . . . . . . . . . . . .3. SOFTWARE UPDATE . . . . . . . . . . . . . . . . . . . . . . . . . . . .4. UTILITY MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5. EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST . . . . . .6. CIRCUIT DI

17、AGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Owners manual: 8288433100 (for export model): 8288434100 (for domestic model)Owners manual supplement: 8288671000 (for export model)Service mode, error code list, exploded view, PCB assembly, parts list and circuit diagrams are given in

18、 thismanual to assist the service technician in maintaining the Model VM200.NOTESThe following accessories are supplied with VM200 as the standard accessories.*Following is the packing material for the Model VM200.*Carton, inner, VM200: 8228728000Carton, outer, VM200: 8228907000Packing, side, L, VM2

19、00: 8228453001Packing, side, R, VM200: 8228453002Sheet, power cable: 8228462000468 912334VM2001. SPECIFICATIONSDEFINITIONSpecification Unit0 dBV = 1 VrmsStandard Input (Impedance)MIC-60 dBV, -34 dBV (3 k or more)LINE-10 dBV (10 k or more)INSERT-10 dBV (20 k or more)2TRACK IN-10 dBV (10 k or more)EFF

20、ECT RETURNAt 70 90 % positionDATA OUTS/P DIF INIEC 60958 (S/P DIF)ADAT INAlesis Proprietary Multi Channel Digital InterfaceStandard Output (Impedance)STEREO-10 dBV (10 k load or more)MONITOR-10 dBV (10 k load or more)AUX-10 dBV (10 k load or more)REC BUSS-10 dBV (10 k load or more)HEADPHONE50 mW or

21、more (33 load)STANDARD FADER POSITIONSTEREO BUSSSet the INPUT / MASTER faders at “0” position when -10 dBV / 1 kHzsignal is fed to the INPUT (INSERT) jack (TRIM: MIN, PAN: L (R),EQ: OFF).MONITORSet the MONITOR VR so that -10 dBV output is obtained at MONITOROUT when -10 dBV / 1 kHz signal is fed to

22、the INPUT (INSERT) jack.OUTPUT LEVELINPUT (1 8) STEREO-10 dBV +2, -1 dB (Standard fader position)INPUT (1 8) MONITOR-10 dBV +2, -1 dB (Standard fader position)FREQUENCY RESPONSEINPUT MONITOR OUTInput: -60 dBV20 20 kHz +1, -3 dBInput: -10 dBV20 20 kHz +1, -3 dBINPUT STEREO OUTOutput: -10 dBV20 20 kHz

23、 +1, -3 dBINPUT PHONESOutput: 50 mW / 33 50 20 kHz +1, -3 dBEQUALIZERHI / HI MID / LOW MID / LOW+18+18 dB 3 dB-18-18 dB 3 dBS/NResidual NoiseAUX 1 4 ST BUSS OUT-88 dBV or less (All input / master faders: MIN)-75 dBV or less (All input / master faders: At 0 dB)MIC INSERT-68 dBV or less (GAIN: MAX, PA

24、D: OFF, Rs: 150)MONITOR OUT (VR: MIN)-100 dBV or lessPHONES-95 dBV or less (VR: MIN)VM2005S/NCH IN AUX 1 4, ST BUSS OUT1 4 Ch (-4 dBV)87 dBV or more (4 Ch: 82 dB or more )1 4 Ch (-48 dBV)70 dBV or more (4 Ch: 62 dB or more )5 8 Ch (-4 dBV)87 dBV or more (4 Ch: 82 dB or more )5 8 Ch (-38 dBV)76 dBV o

25、r more (4 Ch: 72 dB or more )THDCH IN ST BUSS OUT0.08 % or less (0 dBV output)LINE IN PHONES OUT0.1 % or less (50 mW / 33 output)DYNAMIC RANGELINE IN ST BUSS OUT90 dB or moreCROSSTALK68 dB or more (1 kH)CLICK NOISEPower On / Off-20 dBVp-p or lessOther switching (except +48 V SW)-30 dBVp-p or lessMID

26、IOperation check by Test Mode when connecting MIDI IN and OUTWORDOperation check by Test Mode when connecting WORD IN and OUTADATOperation check by Test Mode when connecting ADAT IN and OUTS/P DIFOperation check by Test Mode when connecting S/P DIF IN and OUTPOWER CONSUMPTION30 WSpecifications and a

27、ppearance are subject to change without notice for product improvement.6VM2001. A/B Input Selectors A/ B2. PAD (26dB) switches PAD/ 26dB 3. TRIM control TRIM4. 2 TRK IN switch 2TRK IN5. Monitor Gain knob MONITOR GAIN6. Phones Gain knob PHONES GAIN7. Contrast dial8. LCD Display9. Meters METER, ST BUS

28、S/SOLO10. Data wheel DATA11. /-1 and +1/ keys12. ENTER key ENTER13. EXIT key EXIT14. SYSTEM key SYSTEM15. MIDI key MIDI16. Current Scene Status key CURRENT SCENE STATUS2. CONTROLS, INDICATORS & CONNECTORSQFREQGAINQFREQGAINQFREQGAININPUT 4INPUT 3INPUT 2INPUT 1PAD26dBABPAD26dBABPAD26dBABPAD26dBAB-16-6

29、0+10-34-16-60+10-34-16-60-16-60TRIMTRIMTRIMTRIM+100-10-20-30-40-+100-10-20-30-40-+100-10-20-30-40-+100-10-20-30-40-+100-10-20-30-40-+100-10-20-30-40-+100-10-20-30-40-16PANQPANONONONONONONONSOLOSOLOSOLOSOLOSOLOSOLOSOLOEQ EDITEQ EDITEQ EDITEQ EDITEQ EDITEQ EDITEQ EDITEQ EDITSOLOONONSOLOSTORERECALLEQ O

30、NSTORERECALLSTORERECALLSOLO +1/ /-1DATAEXITENTERMASTER15141312111091-8 ANALOG IN9-16 ADAT IN17-20 EFF RTNAUX1AUX2AUX3AUX4EFF1EFF2ADD.AUXTRIM-10-50TRIMTRIMTRIM-10-50-10-50-10-50INPUT 5INPUT 6INPUT 7INPUT 8MINMAXGAINMAXMINGAIN2TRK INPHONESMONITOR+100-10-20-30-40-ADAT IN0-10-20-30-60-40PANPANPANPANPANP

31、AN-40-36-24-18-12-9-6-3OLST BUSS/SOLOLRMETER+10-34+10-34CHANNELFADER MODEKEY MODEMETERCHANNEL/CH VIEWPHASEGROUPROUTING/PAIR/MMC SENDCURRENT SCENE STATUSSETUPSYSTEMMIDIEQ/LOEQ/LO-MIDEQ/HI-MIDEQ/HI-MIDFREQGAINEFF EDITEFF 2EFF 1EQ LIBRARYEFF LIBRARYSELECTED EQSCENE MEMORYREC BUSS8 87 76 65 54 420201 12

32、 23 3191918181717ANALOG INANALOG INEFF REFF RTNTNPAGE SELECT1234658791112131415161718192021222324252627292830313233343536373810VM200717. ROUTING/PHASE key ROUTING/PHASE18. PAIR/GROUP key PAIR/GROUP19. CH VIEW key CH VIEW20. CHANNEL/METER key CHANNEL/METER21. AUX1 4 keys AUX1, AUX2, AUX3 AUX422. EFF1

33、 2 key EFF1, EFF223. CHANNEL key CHANNEL24. EQ ON key EQ ON25. EQ LIBRARY RECALL key RECALL26. EQ LIBRARY STORE key STORE27. EFF1 2 keys EFF1, EFF228. EFF LIBRARY RECALL key RECALL29. EFF LIBRARY STORE key STORE30. REC BUSS SOLO key SOLO31. SCENE MEMORY RECALL key RECALL32. SCENE MEMORY STORE key ST

34、ORE33. Faders34. ON key ON35. SOLO key SOLO36. EQ EDIT key EQ EDIT 37. EQ Section Rotary Controls GAIN, FREQ /PAN, Q /PAN38. Page Select keys 1-8 ANALOG IN, 9-16 ADAT IN,17-20 EFF RTN1. PHONES PHONES (Phone jack)2. MONITOR OUT MONITOR OUT (RCA jack)3. 2 TRK IN 2TRK IN (RCA jack)4. ST BUSS OUT ST BUS

35、S OUT (Phone jack)5. REC BUSS OUT REC BUSS OUT (Phone jack)6. AUX SEND AUX SEND (Phone jack)7. Inputs 1 4: A, B A, B (A: XLR, B: Stereo phone jack)8. +48V Phantom Power +48V ON/OFF9. Inputs 5 8 (Phone jack)10. Inserts 1 4 INSERT (Stereo phone jack)11. AC Inlet AC IN12. Power switch POWER13. ADAT IN

36、& OUT ADAT IN/OUT (Optical)14. S/P DIF IN & OUT S/P DIF IN/OUT (Optical)15. MIDI In/Out/Thru MIDI IN/OUT/THRU (MIDI)16. 75 On/Off switch 75 ON/OFF17. WORD IN/OUT WORD IN/OUT (BNC)CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENAVIS:WARNING:RLRLRLR4L32187651234AAA1234+48VOFFON+48VOFFON+48VOFFON+48VOFFONPHONE

37、SOPTICALWORDOUTINAC INPOWERS/P DIFADATINOUTOUTINMIDIINOUTTHRU75OFFONINPUTINSERTBINSERTINSERTBBADD.AUX SENDAUX SENDST BUSS OUT2TRK INMONITOR OUTREC BUSS OUTTO REDUCE THE RISK OF FIRE OR ELECTRICSHOCK, DO NOT EXPOSE THIS EQUIPMENTTO RAIN OR MOISTURE. RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR956234178710

38、151617141312118VM2003. SOFTWARE UPDATEIn order to update the VM200 software, the ROM CARD PCB (P/N:8274219000) must be required. Mount the updated software (2 pcs.EPROMs) into the EPROM sockets (U1 and U2) on the PCB. Whenupdating the software, make sure that the switch SW1 on the ROM CARDPCB is set

39、 to “EPROM” side.3-1. Preparation3-2. ProceduresTurn the data wheel and select the menu “004 Program_Flash_ROM”.Press the ENTER key. The VM200 starts transferring the program datafrom the EPROM into the flash ROM on the MAIN PCB. The followingis the LCD display while updating the software inside the

40、 flash ROM.Loosen 4 x screws (BBT3 x 8 BZn) and remove 2 pcs. ROM Cover (P/N:8221142000) on the VM200 bottom panel.1)Plug the ROM CARD PCB into the J18 connector on the MAIN PCBAssy. When plugging the ROM CARD PCB, check if the EPROMs arefacing the bottom side.2)Turn on the power of VM200. On condit

41、ion that the ROM CARD PCBis correctly plugged in, the LCD display indicates the following.3)4)After transferring the software is completed, the following is displayedon the LCD display.Press the ENTER key. The following is displayed on the LCD display.5)8251984 001U2C91J149250C8EPROMFLASHSW1TP2NMITP

42、1TP3U1/RSTDGNDM27C2001-10F1M27C2001-10F1ROM CARD PCB TOP VIEWSME16V10uFSME16V10uF(M)85C (M)85VM200 BOTTOM PANELFRONT sideREAR sideVM200 BOTTOM PANELMAIN PCBFRONT sideREAR sideConnector J18(50-pin)ROM CARDPCBEPROM/FLASHSWROM COVERVM2009Press either the ENTER or EXIT key. The VM200 returns to the init

43、ial mix mode display.6)Once turn off the power of VM200 and disconnect the ROM CARD PCB. Then, turn the power back on again. Next, putthe VM200 into the Utility Mode by pressing the EXIT key while holding down the /-1 and +1/ keys. Then, select themenu “002 Version_Disp.”7)Press the ENTER key. Confi

44、rm that the flash ROM is correctly updated. The LCD display below indicates that thesoftware version number is “V01.02” and its programming date is “990621 (June 21, 1999)”.8)4. UTILITY MODEThere are various Utility Modes available in the VM200. Please utilize them when servicing the unit.The way of

45、 putting the VM200 into Utility Mode is as follow.4-1. Putting VM200 into Utility ModeTurn on the power of VM200. The normal Init Mix display appears after the Fostex and VM200 banner scroll.1)While holding down the EXIT key, press the /-1 and +1/ keys. If the VM200 is correctly put into the Utility

46、 Mode,the following appears on the LCD display.2)Rotate the data wheel to select a desired Utility Mode and press the ENTER key to execute. To exit from the Utility Mode,press either the ENTER or EXIT key in the above display condition.10VM2004-2. 002 Version Disp.Please refer to the section “3-2. P

47、rocedures 7) and 8)” on page 9.4-3. 003 Erase All Flash ROM.This mode is prepared in case wrong data is somehow programmed into the Flash ROM. Please remember that the ROMCARD PCB must be plugged into the J18 (50-pin) connector on the MAIN PCB, so that all the data in the Flash ROM canbe erased.4-4.

48、 004 Program Flash ROM.Please refer to the section “3. SOFTWARE UPDATE” on page 8 9.4-5. 005 Fader Demo On/Off.This Utility Mode is prepared to demonstrate the movement of 9 motorized faders. By turning on this mode (pressing theENTER key), these faders start moving in the shape of sine wave. The LC

49、D display returns to the initial mix display bypressing the EXIT key while the faders are moving. To quit, press the ENTER key again when the “005 Fader DemoOn/Off.” is selected.4-6. 006 All LED Demo On/Off.This Utility Mode checks if all the self-illuminating switches on the top panel as well as th

50、e LEDs used for stereo buss/solo meters are correctly working. To turn them on, press the ENTER key. To turn off, press the ENTER key again.4-7. 007 Self Check Mode.Before putting the VM200 into the Self Check Mode, connect the following terminal.CAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENAVIS:WARNING: