Fostex-VM200-mix-sm维修电路原理图.pdf

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1、VM200 Service Manual Model DIGITAL RECORDING MIXER RadioFans.CN 收音机爱 好者资料库 SAFETY INSTRUCTIONS Read instructions - All the safety and operating instruc- tions should be read before the appliance is operated. Retain instructions - The safety and operating instructions should be retained for future re

2、ference. Heed warnings - All warnings on the appliance and in the operating instructions should be adhered to. Follow instructions - All operating and use instructions should be followed. Water and Moisture - The appliance should not be used near water - for example, near a bathtub, washbowl, kitche

3、n sink, laundry tub, in a wet basement, or near a swimming pool, and the like. Carts and Stands - The appliance should be used only with a cart or stand that is recommended by the manufac- turer. An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven su

4、rfaces may cause the appliance and cart combination to over- turn. Wall or Ceiling Mounting - The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer. Ventilation - The appliance should be situated so that its location or position does not interfere with its prop

5、er ven- tilation. For example, the appliance should not be situ- ated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built-in installa- tion, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings. Heat - The a

6、ppliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers) that produce heat. Power Sources - The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the

7、 appliance. Grounding or Polarization - The precautions that should be taken so that the grounding or polarization means of an appliance is not defeated. Power Cord Protection - Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against

8、 them, paying particular attention to cords at 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 should be unplugged from the outle

9、t when left unused for a long period of time. Object and Liquid Entry - Care should be taken so that objects 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

10、. Servicing - The user should not attempt to service the ap- pliance beyond that described in the operating instruc- tions. All other servicing should be referred to qualified service personnel. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO RE

11、DUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. POUR VITER LES CHOCS LECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRE- SPONDANTE DE LA PRISE E

12、T POUSSER JUSQU AU FOND. CAUTION: ATTENTION: The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and mainte- nance (servicing) instructions in the literature accompanying the appliance. The lightening flash with arrowhead symbol,

13、within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the products en- closure that may be of sufficient magnitude to constitute a risk of electric shock to persons. “WARNING” “TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPO

14、SE THIS APPLIANCE TO RAIN OR MOIS- TURE.” 1. 2. 3. 4. 5. 6. 7. 8. The power supply cord or the plug has been damaged; or Objects have fallen, or liquid has been spilled into the appliance; or The appliance has been exposed to rain; or The appliance does not appear to operate normally or exhibits a m

15、arked changed in performance; or The appliance has been dropped, or the enclosure damaged. 9. 10. 11. 12. 13. 14. 15. 16. 17. RadioFans.CN 收音机爱 好者资料库 VM200 3 Parts marked with this sign are safety critical components. They must always be replaced with identical components. Refer to the Fostex Parts

16、List and ensure exact replacement. CAUTION TABLE OF CONTENTS 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. CONTROLS, INDICATORS & CONNECTORS . . . . . . . . . . . . 3. SOFTWARE UPDATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4. UTILITY MODE .

17、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST . . . . . . 6. CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Owners manual: 8288433100 (for export model) : 8288434100 (for domestic model) Owners manual supp

18、lement: 8288671000 (for export model) Service mode, error code list, exploded view, PCB assembly, parts list and circuit diagrams are given in this manual to assist the service technician in maintaining the Model VM200. NOTES The following accessories are supplied with VM200 as the standard accessor

19、ies.* * Following is the packing material for the Model VM200.* Carton, inner, VM200: 8228728000 Carton, outer, VM200: 8228907000 Packing, side, L, VM200: 8228453001 Packing, side, R, VM200: 8228453002 Sheet, power cable: 8228462000 4 6 8 9 12 33 RadioFans.CN 收音机爱 好者资料库 4 VM200 1. SPECIFICATIONS DEF

20、INITION Specification Unit0 dBV = 1 Vrms Standard 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) EFFECT RETURNAt 70 90 % position DATA OUT S/P DIF INIEC 60958 (S/P DIF) ADAT INAlesis Proprietary Multi Channe

21、l Digital Interface Standard 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 more (33 load) STANDARD FADER POSITION STEREO BUSSSet the INPUT / MASTER faders at “0” position wh

22、en -10 dBV / 1 kHz signal 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 MONITOR OUT when -10 dBV / 1 kHz signal is fed to the INPUT (INSERT) jack. OUTPUT LEVEL INPUT (1 8) STEREO-10 dBV +2, -1 dB (Standard fader po

23、sition) INPUT (1 8) MONITOR-10 dBV +2, -1 dB (Standard fader position) FREQUENCY RESPONSE INPUT MONITOR OUT Input: -60 dBV20 20 kHz +1, -3 dB Input: -10 dBV20 20 kHz +1, -3 dB INPUT STEREO OUT Output: -10 dBV20 20 kHz +1, -3 dB INPUT PHONES Output: 50 mW / 33 50 20 kHz +1, -3 dB EQUALIZER HI / HI MI

24、D / LOW MID / LOW +18+18 dB 3 dB -18-18 dB 3 dB S/N Residual Noise AUX 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, PAD: OFF, Rs: 150) MONITOR OUT (VR: MIN)-100 dBV or less PHONES-95 dBV or

25、less (VR: MIN) RadioFans.CN 收音机爱 好者资料库 VM200 5 S/N CH IN AUX 1 4, ST BUSS OUT 1 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 or more (4 Ch: 72 dB or more ) THD CH I

26、N ST BUSS OUT0.08 % or less (0 dBV output) LINE IN PHONES OUT0.1 % or less (50 mW / 33 output) DYNAMIC RANGE LINE IN ST BUSS OUT90 dB or more CROSSTALK68 dB or more (1 kH) CLICK NOISE Power On / Off-20 dBVp-p or less Other switching (except +48 V SW)-30 dBVp-p or less MIDIOperation check by Test Mod

27、e when connecting MIDI IN and OUT WORDOperation check by Test Mode when connecting WORD IN and OUT ADATOperation check by Test Mode when connecting ADAT IN and OUT S/P DIFOperation check by Test Mode when connecting S/P DIF IN and OUT POWER CONSUMPTION30 W Specifications and appearance are subject t

28、o change without notice for product improvement. RadioFans.CN 收音机爱 好者资料库 6 VM200 1. A/B Input Selectors A/ B 2. PAD (26dB) switches PAD/ 26dB 3. TRIM control TRIM 4. 2 TRK IN switch 2TRK IN 5. Monitor Gain knob MONITOR GAIN 6. Phones Gain knob PHONES GAIN 7. Contrast dial 8. LCD Display 9. Meters ME

29、TER, ST BUSS/SOLO 10. Data wheel DATA 11. /-1 and +1/ keys 12. ENTER key ENTER 13. EXIT key EXIT 14. SYSTEM key SYSTEM 15. MIDI key MIDI 16. Current Scene Status key CURRENT SCENE STATUS 2. CONTROLS, INDICATORS & CONNECTORS QFREQ GAIN QFREQ GAIN QFREQ GAIN INPUT 4INPUT 3INPUT 2INPUT 1 PAD 26dB A B P

30、AD 26dB A B PAD 26dB A B PAD 26dB A B -16-60 +10-34 -16-60 +10-34 -16 -60 -16-60 TRIMTRIMTRIMTRIM +10 0 -10 -20 -30 -40 - +10 0 -10 -20 -30 -40 - +10 0 -10 -20 -30 -40 - +10 0 -10 -20 -30 -40 - +10 0 -10 -20 -30 -40 - +10 0 -10 -20 -30 -40 - +10 0 -10 -20 -30 -40 - 16 PAN Q PAN ONONONONONONON SOLOSO

31、LOSOLOSOLOSOLOSOLOSOLO EQ EDITEQ EDITEQ EDITEQ EDITEQ EDITEQ EDITEQ EDITEQ EDIT SOLO ONON SOLO STORERECALL EQ ON STORERECALL STORERECALLSOLO +1/ /-1 DATA EXIT ENTER MASTER 1514131211109 1-8 ANALOG IN9-16 ADAT IN17-20 EFF RTN AUX1AUX2 AUX3AUX4 EFF1EFF2 ADD.AUX TRIM -10-50 TRIMTRIMTRIM -10-50-10-50-10

32、-50 INPUT 5INPUT 6INPUT 7INPUT 8 MINMAX GAIN MAXMIN GAIN 2TRK IN PHONESMONITOR +10 0 -10 -20 -30 -40 - ADAT IN 0 -10 -20 -30 -60 - -40 PANPANPANPANPANPAN -40 -36 -24 -18 -12 -9 -6 -3 OL ST BUSS/SOLO LR METER +10-34+10-34 CHANNEL FADER MODE KEY MODE METER CHANNEL/ CH VIEW PHASEGROUP ROUTING/PAIR/ MMC

33、 SEND CURRENT SCENE STATUS SETUP SYSTEMMIDI EQ/LOEQ/LO-MIDEQ/HI-MIDEQ/HI-MID FREQ GAIN EFF EDIT EFF 2EFF 1 EQ LIBRARYEFF LIBRARY SELECTED EQ SCENE MEMORYREC BUSS 8 87 76 65 54 4 2020 1 12 23 3 191918181717 ANALOG INANALOG IN EFF REFF RTNTN PAGE SELECT 123465879 11 12 13 14 15 16 17 18 19 20 21 22 23

34、 24 25 26 27 29 28 30 31 32 33 34 35 36 37 38 10 RadioFans.CN 收音机爱 好者资料库 VM200 7 17. ROUTING/PHASE key ROUTING/PHASE 18. PAIR/GROUP key PAIR/GROUP 19. CH VIEW key CH VIEW 20. CHANNEL/METER key CHANNEL/METER 21. AUX1 4 keys AUX1, AUX2, AUX3 AUX4 22. EFF1 2 key EFF1, EFF2 23. CHANNEL key CHANNEL 24. E

35、Q ON key EQ ON 25. EQ LIBRARY RECALL key RECALL 26. EQ LIBRARY STORE key STORE 27. EFF1 2 keys EFF1, EFF2 28. EFF LIBRARY RECALL key RECALL 29. EFF LIBRARY STORE key STORE 30. REC BUSS SOLO key SOLO 31. SCENE MEMORY RECALL key RECALL 32. SCENE MEMORY STORE key STORE 33. Faders 34. ON key ON 35. SOLO

36、 key SOLO 36. EQ EDIT key EQ EDIT 37. EQ Section Rotary Controls GAIN, FREQ /PAN, Q /PAN 38. Page Select keys 1-8 ANALOG IN, 9-16 ADAT IN, 17-20 EFF RTN 1. PHONES PHONES (Phone jack) 2. MONITOR OUT MONITOR OUT (RCA jack) 3. 2 TRK IN 2TRK IN (RCA jack) 4. ST BUSS OUT ST BUSS OUT (Phone jack) 5. REC B

37、USS 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/OFF 9. Inputs 5 8 (Phone jack) 10. Inserts 1 4 INSERT (Stereo phone jack) 11. AC Inlet AC IN 12. Power switch POWER 13. ADAT IN & OUT ADAT IN/OUT

38、(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/OFF 17. WORD IN/OUT WORD IN/OUT (BNC) CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS: WARNING: RLRLRLR4L3218765 1234 AAA 1234 +48V OFF ON +48V OFF ON +48V OFF ON +48V OFF

39、ON PHONES OPTICAL WORD OUTIN AC IN POWER S/P DIFADAT INOUTOUTIN MIDI INOUTTHRU 75 OFFON INPUT INSERT B INSERTINSERT BB ADD.AUX SEND AUX SENDST BUSS OUT2TRK INMONITOR OUTREC BUSS OUT TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. RISQUE DE CHOC ELECTRI

40、QUE NE PAS OUVRIR 956234178 71015161714131211 RadioFans.CN 收音机爱 好者资料库 8 VM200 3. SOFTWARE UPDATE In 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. When updating the sof

41、tware, make sure that the switch SW1 on the ROM CARD PCB is set to “EPROM” side. 3-1. Preparation 3-2. Procedures Turn the data wheel and select the menu “004 Program_Flash_ROM”. Press the ENTER key. The VM200 starts transferring the program data from the EPROM into the flash ROM on the MAIN PCB. Th

42、e following is the LCD display while updating the software inside the 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 PCB Assy. When plugging the ROM CARD PCB, check if th

43、e EPROMs are facing the bottom side. 2) Turn on the power of VM200. On condition that the ROM CARD PCB is correctly plugged in, the LCD display indicates the following. 3) 4) After transferring the software is completed, the following is displayed on the LCD display. Press the ENTER key. The followi

44、ng is displayed on the LCD display.5) 8251984 001 U2 C9 1 J1 49 250 C8 EPROM FLASH SW1 TP2 NMI TP1 TP3 U1 /RST DGND M27C2001 -10F1 M27C2001 -10F1 ROM CARD PCB TOP VIEW SME 16V 10uF SME 16V 10uF (M)85C (M)85 VM200 BOTTOM PANEL FRONT side REAR side VM200 BOTTOM PANEL MAIN PCB FRONT side REAR side Conn

45、ector J18 (50-pin) ROM CARD PCB EPROM/FLASH SW ROM COVER RadioFans.CN 收音机爱 好者资料库 VM200 9 Press either the ENTER or EXIT key. The VM200 returns to the initial 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, put the VM200

46、into the Utility Mode by pressing the EXIT key while holding down the /-1 and +1/ keys. Then, select the menu “002 Version_Disp.” 7) Press the ENTER key. Confirm that the flash ROM is correctly updated. The LCD display below indicates that the software version number is “V01.02” and its programming

47、date is “990621 (June 21, 1999)”. 8) 4. UTILITY MODE There are various Utility Modes available in the VM200. Please utilize them when servicing the unit. The way of putting the VM200 into Utility Mode is as follow. 4-1. Putting VM200 into Utility Mode Turn on the power of VM200. The normal Init Mix

48、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 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

49、 execute. To exit from the Utility Mode, press either the ENTER or EXIT key in the above display condition. RadioFans.CN 收音机爱 好者资料库 10 VM200 4-2. 002 Version Disp. Please refer to the section “3-2. Procedures 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 ROM CARD PCB must be plugged into the J18 (50-pin) connector on the MAIN PCB, so that all the data in the Flash ROM can be erased. 4-4.