Service Manual Model VM200 DIGITAL RECORDING MIXER CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. ATTENTION: POUR ÉVITER LES CHOCS ÉLECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU' AU FOND. The lightening flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. "WARNING" "TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE." SAFETY INSTRUCTIONS 1. 2. 3. 4. 5. Read instructions - All the safety and operating instructions should be read before the appliance is operated. Retain instructions - The safety and operating instructions should be retained for future reference. 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, kitchen 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 manufacturer. 9. Heat - The appliance 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 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 them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance. Cleaning - The appliance should be cleaned only as recommended by the manufacturer. Nonuse Periods - The power cord of the appliance should be unplugged from the outlet 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 enclosure through openings. Damage requiring Service - The appliance should be serviced by qualified service personnel when: A. The power supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the appliance; or C. The appliance has been exposed to rain; or D. The appliance does not appear to operate normally or exhibits a marked changed in performance; or E. The appliance has been dropped, or the enclosure damaged. Servicing - The user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be referred to qualified service personnel. 10. 11. 12. 6. 13. 14. 15. 7. 8. An appliance and cart combination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn. 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 proper ventilation. For example, the appliance should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings. 16. 17. VM200 TABLE OF CONTENTS 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. CONTROLS, INDICATORS & CONNECTORS . . . . . . . . . . . . 3. SOFTWARE UPDATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4. UTILITY MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. EXPLODED VIEW, PCB ASSEMBLY & PARTS LIST . . . . . . 6. CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6 8 9 12 33 NOTES * 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. * The following accessories are supplied with VM200 as the standard accessories. Owner's manual Owner's manual supplement : 8288433100 (for export model) : 8288434100 (for domestic model) : 8288671000 (for export model) * Following is the packing material for the Model VM200. Carton, inner, VM200 Carton, outer, VM200 Packing, side, L, VM200 Packing, side, R, VM200 Sheet, power cable : 8228728000 : 8228907000 : 8228453001 : 8228453002 : 8228462000 CAUTION Parts marked with this sign are safety critical components. They must always be replaced with identical components. Refer to the Fostex Parts List and ensure exact replacement. 3 VM200 1. SPECIFICATIONS DEFINITION Specification Unit Standard Input (Impedance) MIC LINE INSERT 2TRACK IN EFFECT RETURN DATA OUT S/P DIF IN ADAT IN Standard Output (Impedance) STEREO MONITOR AUX REC BUSS HEADPHONE 0 dBV = 1 Vrms -60 dBV, -34 dBV (3 k or more) -10 dBV (10 k or more) -10 dBV (20 k or more) -10 dBV (10 k or more) At 70 ~ 90 % position IEC 60958 (S/P DIF) Alesis Proprietary Multi Channel Digital Interface -10 dBV (10 k load or more) -10 dBV (10 k load or more) -10 dBV (10 k load or more) -10 dBV (10 k load or more) 50 mW or more (33 load) STANDARD FADER POSITION STEREO BUSS Set the INPUT / MASTER faders at "0" position when -10 dBV / 1 kHz signal is fed to the INPUT (INSERT) jack (TRIM: MIN, PAN: L (R), EQ: OFF). Set 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. -10 dBV +2, -1 dB (Standard fader position) -10 dBV +2, -1 dB (Standard fader position) MONITOR OUTPUT LEVEL INPUT (1 ~ 8) STEREO INPUT (1 ~ 8) MONITOR FREQUENCY RESPONSE INPUT MONITOR OUT Input: -60 dBV Input: -10 dBV INPUT STEREO OUT Output: -10 dBV INPUT PHONES Output: 50 mW / 33 20 ~ 20 kHz +1, -3 dB 20 ~ 20 kHz +1, -3 dB 20 ~ 20 kHz +1, -3 dB 50 ~ 20 kHz +1, -3 dB EQUALIZER HI / HI MID / LOW MID / LOW +18 -18 +18 dB ± 3 dB -18 dB ± 3 dB S/N Residual Noise AUX 1 ~ 4 ST BUSS OUT MIC INSERT MONITOR OUT (VR: MIN) PHONES 4 -88 dBV or less (All input / master faders: MIN) -75 dBV or less (All input / master faders: At 0 dB) -68 dBV or less (GAIN: MAX, PAD: OFF, Rs: 150) -100 dBV or less -95 dBV or less (VR: MIN) VM200 S/N CH IN AUX 1 ~ 4, ST BUSS OUT 1 ~ 4 Ch (-4 dBV) 1 ~ 4 Ch (-48 dBV) 5 ~ 8 Ch (-4 dBV) 5 ~ 8 Ch (-38 dBV) 87 dBV or more (4 Ch: 82 dB or more ) 70 dBV or more (4 Ch: 62 dB or more ) 87 dBV or more (4 Ch: 82 dB or more ) 76 dBV or more (4 Ch: 72 dB or more ) THD CH IN ST BUSS OUT LINE IN PHONES OUT 0.08 % or less (0 dBV output) 0.1 % or less (50 mW / 33 output) DYNAMIC RANGE LINE IN ST BUSS OUT 90 dB or more 68 dB or more (1 kH) CROSSTALK CLICK NOISE Power On / Off Other switching (except +48 V SW) -20 dBVp-p or less -30 dBVp-p or less Operation check by Test Mode when connecting MIDI IN and OUT Operation check by Test Mode when connecting WORD IN and OUT Operation check by Test Mode when connecting ADAT IN and OUT Operation check by Test Mode when connecting S/P DIF IN and OUT 30 W MIDI WORD ADAT S/P DIF POWER CONSUMPTION Specifications and appearance are subject to change without notice for product improvement. 5 VM200 2. CONTROLS, INDICATORS & CONNECTORS < TOP PANEL > 321 INPUT 1 INPUT 2 INPUT 3 7 INPUT 4 8 INPUT 5 INPUT 6 INPUT 7 INPUT 8 9 5 MONITOR 4 PHONES 6 A A A A 2TRK IN B PAD 26dB TRIM B PAD 26dB TRIM B PAD 26dB TRIM B PAD 26dB TRIM TRIM TRIM TRIM TRIM GAIN GAIN -16 +10 -60 -34 -16 +10 -60 -34 -16 +10 -60 -34 -16 +10 -60 -34 -10 -50 -10 -50 -10 -50 -10 -50 MIN MAX MIN MAX METER OL -3 -6 -9 -12 -18 -24 -36 38 37 PAGE SELECT 1-8 ANALOG IN 9-16 ADAT IN 17-20 EFF RTN -40 L R ST BUSS/SOLO SETUP EQ/LO MIDI GAIN EQ/LO-MID GAIN EQ/HI-MID GAIN EQ/HI-MID GAIN SELECTED EQ EQ ON EFF 1 EFF EDIT EFF 2 14 15 16 36 18 17 35 19 20 34 21 22 23 33 SYSTEM EQ LIBRARY CURRENT SCENE STATUS FREQ Q FREQ Q FREQ Q FREQ Q RECALL STORE RECALL EFF LIBRARY STORE PAN PAN PAN PAN PAN PAN PAN PAN EQ EDIT KEY MODE ROUTING/ PHASE PAIR/ GROUP EQ EDIT EQ EDIT EQ EDIT EQ EDIT EQ EDIT EQ EDIT EQ EDIT REC BUSS SOLO MMC SEND CHANNEL/ METER SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SCENE MEMORY RECALL STORE CH VIEW ON ON ON ON ON ON ON ON ON FADER MODE AUX1 AUX2 /-1 +1/ 25 24 26 27 29 28 31 32 30 11 13 10 12 AUX3 AUX4 +10 +10 +10 +10 +10 +10 +10 +10 0 EXIT DATA ADD.AUX 0 EFF1 EFF2 0 0 0 0 0 0 0 -10 -10 -10 -10 -10 -10 -10 -10 -10 -20 -30 CHANNEL -20 -20 -20 -20 -20 -20 -20 -20 -40 -30 -40 -30 -40 -30 -40 -30 -40 -30 -40 -30 -40 -30 -40 -30 -40 -60 ENTER - - - - - - - - - ANALOG IN ADAT IN EFF RTN RTN 1 9 17 2 10 18 3 11 19 4 12 20 5 13 6 14 7 15 8 16 MASTER 1. 2. 3. 4. 5. 6. 7. 8. A/B Input Selectors [ A/ B] PAD (26dB) switches [PAD/ 26dB ] TRIM control [TRIM] 2 TRK IN switch [2TRK IN] Monitor Gain knob [MONITOR GAIN] Phones Gain knob [PHONES GAIN] Contrast dial LCD Display 9. 10. 11. 12. 13. 14. 15. 16. Meters [METER, ST BUSS/SOLO] Data wheel [DATA] /-1 and +1/ keys ENTER key [ENTER] EXIT key [EXIT] SYSTEM key [SYSTEM] MIDI key [MIDI] Current Scene Status key [CURRENT SCENE STATUS] 6 VM200 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. ROUTING/PHASE key [ROUTING/PHASE] PAIR/GROUP key [PAIR/GROUP] CH VIEW key [CH VIEW] CHANNEL/METER key [CHANNEL/METER] AUX1~ 4 keys [AUX1, AUX2, AUX3 AUX4] EFF1 ~ 2 key [EFF1, EFF2] CHANNEL key [CHANNEL] EQ ON key [EQ ON] EQ LIBRARY RECALL key [RECALL] EQ LIBRARY STORE key [STORE] EFF1 ~ 2 keys [EFF1, EFF2] EFF LIBRARY RECALL key [RECALL] 29. 30. 31. 32. 33. 34. 35. 36. 37. EFF LIBRARY STORE key [STORE] REC BUSS SOLO key [SOLO] SCENE MEMORY RECALL key [RECALL] SCENE MEMORY STORE key [STORE] Faders ON key [ON] SOLO key [SOLO] EQ EDIT key [ EQ EDIT ] 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] < REAR PANEL > 1 2 3 4 5 6 9 7 8 PHONES MONITOR OUT 2TRK IN ST BUSS OUT REC BUSS OUT AUX SEND INPUT A R L R L R L R 4 L 3 2 1 8 7 6 5 4 3 A A ADD.AUX SEND 2 1 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. +48V ON OFF +48V ON OFF +48V ON OFF +48V ON OFF AVIS: R I S Q U E D E C H O C E L E C T R I Q U E N E PA S O U V R I R AC IN ADAT POWER OPTICAL IN OUT IN S/P DIF OUT IN MIDI 75 OUT THRU ON OFF IN WORD OUT B B B INSERT INSERT INSERT 4 3 2 1 11 1. 2. 3. 4. 5. 6. 7. 8. 9. 12 13 14 15 16 17 10 7 PHONES [PHONES] (Phone jack) 10. MONITOR OUT [MONITOR OUT] (RCA jack) 11. 2 TRK IN [2TRK IN] (RCA jack) 12. ST BUSS OUT [ST BUSS OUT] (Phone jack) 13. REC BUSS OUT [REC BUSS OUT] (Phone jack) 14. AUX SEND [AUX SEND] (Phone jack) 15. Inputs 1 ~ 4: A, B [A, B] (A: XLR, B: Stereo phone jack) 16. +48V Phantom Power [+48V ON/OFF] 17. Inputs 5 ~ 8 (Phone jack) Inserts 1 ~ 4 [INSERT] (Stereo phone jack) AC Inlet [AC IN] Power switch [POWER] ADAT IN & OUT [ADAT IN/OUT] (Optical) S/P DIF IN & OUT [S/P DIF IN/OUT] (Optical) MIDI In/Out/Thru [MIDI IN/OUT/THRU] (MIDI) 75 On/Off switch [75 ON/OFF] WORD IN/OUT [WORD IN/OUT] (BNC) 7 VM200 3. SOFTWARE UPDATE 3-1. Preparation 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 software, make sure that the switch SW1 on the ROM CARD PCB is set to "EPROM" side. 8251984 001 FLASH M27C2001 -10F1 U1 SW1 EPROM TP2 NMI M27C2001 -10F1 3-2. Procedures 1) Loosen 4 x screws (BBT3 x 8 BZn) and remove 2 pcs. ROM Cover (P/N: 8221142000) on the VM200 bottom panel. U2 TP1 /RST TP3 DGND 1 2 3) Turn on the power of VM200. On condition that the ROM CARD PCB is correctly plugged in, the LCD display indicates the following. ROM COVER Turn the data wheel and select the menu "004 Program_Flash_ROM". REAR side 4) Press the ENTER key. The VM200 star ...