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VM08

Service Manual

Model

8ch Digital Mixer with DSP Effects

FOSTEX CORPORATION  3-2-35 Musashino, Akishima, Tokyo, Japan 196-0021

FOSTEX CORPORATION OF AMERICA 15431 Blackburn Ave., Norwalk, CA 90650, U.S.A.

© PRINTED IN JAPAN  DEC 1999  8288788000

Summary of Contents for VM08

Page 1: ...nual Model 8chDigitalMixerwithDSPEffects FOSTEX CORPORATION 3 2 35 Musashino Akishima Tokyo Japan 196 0021 FOSTEX CORPORATION OF AMERICA 15431 Blackburn Ave Norwalk CA 90650 U S A PRINTED IN JAPAN DEC 1999 8288788000 ...

Page 2: ...n 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 9 Heat The appliance should be situated away from heat sources such as radiators heat registers stoves or other ap pliances including amplifiers that produce heat 10 Power Sources The appliance should be connected to a power supply only of the type describe...

Page 3: ... 5 PARTS LIST 9 6 PCB PATTERN DRAWING 11 7 CIRCUIT DIAGRAMS 18 8 BLOCK DIAGRAM 31 NOTES Parts List and circuit diagrams are given in this manual to assist the service technician in maintaining the Model VM08 The following accessories are supplied with VM08 as the standard accessories Owner s manual 8288448000 AC adaptor AD 9B 8270818003 for USA CND 8270818006 for EUR 8270818007 for UK 8270818010 f...

Page 4: ...1 2 0dBV Non input channel is measured 60dB or more 1kHz CLICK NOISE Power ON OFF Stereo Out 20dBVp p or less Aux Out 20dBVp p or less Other switching Stereo Out 30dBVp p or less Aux Out 30dBVp p or less SHOCK NOISE 30dBVp p or less LEVEL INDICATION Type LCD Bargraph Meter Number of Indicated Levels 10dots 48 30 24 18 12 9 6 3 1 OL Reference Level 10dBV Indication 12dB DIGITAL SECTION SAMPLING FRE...

Page 5: ...1 50 49 48 47 46 45 44 43 42 41 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG39 SEG40 COM16 COM15 COM14 COM13 COM12 COM11 COM10 COM9 COM8 COM7 COM6 COM5 COM4 COM3 COM2 COM1 LCD_D7 LCD_D6 LCD_D5 LCD_D4 LCD_D3 LCD_D2 3 2 1 D 5_1 1 2 3 GND 2 1 DGND D 5_1 D 5_1 DGND D 5_1 R256 220K R255 1K R254 1K R253 1K R252 1K R251 1K ...

Page 6: ...ADER Display Confirm that 7 8 channel parameter value 00 99 correctly appears on the MASTER FADER Display Confirm that Master Fader parameter value 00 99 correctly appears on the SCENE NO Display If the EXIT key is pressed the VM08 returns to Normal mode display 3 3 Display Check While holding down both the PAN EQ and EFF AUX keys press the EXIT key All the LEDs and LCD segments are supposed to st...

Page 7: ...x mode display The Scene No 00 is displayed and the memory will not be initialized Pressing the RESET SW would also clear the memory and the message ClearMem appears Gain Table The value appears in the LCD display corresponds to the gain in dB as shown below CAUTION Replacing the battery with the new one would basically initialize the backup data In order to retain the backup data please replace t...

Page 8: ... 8270818003 AC ADAPTOR AD 9B USA CSA 8270818006 AC ADAPTOR AD 9B EUR 8270818007 AC ADAPTOR AD 9B UK 8270818010 AC ADAPTOR AD 9B JPN 19 8216723000 SHEET ISOLATION VM08 20 8207012000 FOOT FF 822 21 8221300000 PANEL BOTTOM VM08 MAIN 8 9 ANALOG IN 2 3 2 8 4 1 AGND 6 5 7 5 4 2 3 7 8 1 INPUT5 6 10dBV J501 YKB21 5006 AGND AGND AGND AGND AGND A 5 1 2VCC L501 BEAD R501 62K C501 10 16 C503 NON C505 NON R507...

Page 9: ...25V 0 1µF 80 CC11F C007 010 8233513103 CAP ST CER 50V 0 01µF 15 CC11R C011 8233513471 CAP ST CER 50V 470pF 15 CC11R C012 8232143477 CAP VT ALU 16V 470µF 20 SME VB C013 016 8232142107 CAP VT ALU 10V 100µF 20 SME VB C017 8232363127 CAP VT ALU 6 3V 120µF 20 LXV DS C018 019 8232143106 CAP VT ALU 16V 10µF 20 SME VB C020 8232146105 CAP VT ALU 50V 1µF 20 SME VB C021 8232143107 CAP VT ALU 16V 100µF 20 SME...

Page 10: ... 8230510242 RES ST CARBON 1 15W 2 4K 5 R317 417 8230510102 RES ST CARBON 1 15W 1K 5 R318 418 8230510102 RES ST CARBON 1 15W 1K 5 R319 419 8230510102 RES ST CARBON 1 15W 1K 5 R320 420 8230510104 RES ST CARBON 1 15W 100K 5 R321 421 8230510471 RES ST CARBON 1 15W 470 5 R322 422 8230510472 RES ST CARBON 1 15W 4 7K 5 R323 423 8230510100 RES ST CARBON 1 15W 10 5 R324 424 8230510103 RES ST CARBON 1 15W 1...

Page 11: ...3 CTG2 CTG1 IS2 IS1 M2 M1 DO2 DO1 BLOCK UBDA LRS LRCK BCK DATA VLDY EMPH COPY FS1 FS2 CKS XI VSS 28 27 26 25 24 23 22 21 20 19 18 17 16 15 2 1 3 5 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 TESTI1 INIT_RESET CODEC_RESET DSP_RESET SMUTE DVB SDINA SDOUTA SDOUTD1 SDIND1 SDIND2 SDOUTD2 SDOUT1 SDOUT2 SDIN1 SDIN2 LRCK BITCLK CLKO CTRL DVDD DVSS OPCL XTI XTO EECS EESK EEDI EEDO D...

Page 12: ...A2 A3 A4 A5 A6 A7 VDSS DVDD AINL AINL AINR AINR VRADH AVDD AVSS VRADL VCOM VRDAH AVDD AVSS VRDAL NC VOUTL1 VOUTL1 NC VOUTR1 VOUTR1 NC VOUTL2 VOUTL2 NC VOUTR2 VOUTR2 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 L5 EMI DGND R156 100 RST_INIT1 RST_CODEC RST_DSP1 AIN2 AIN2 AIN1 AIN1 AIN2 AIN2 AIN1 AIN1 R157 330 C173 1500P C172 1500P C150 0 1 C169 10 16 C151 0 1 AGND AGND ...

Page 13: ...SI SI1 SI2 SI3 SO3 SO2 RST_DSP SO1 D 5 U21A 74VHC00 U21B 74VHC00 U21C 74VHC00 U21D 74VHC00 R74 100 SCK1 SCK2 SCK3 R75 100 R76 100 R78 100 CPU CPU SO R77 100 SELECT 1 3 D 5 D 5 D 5 SELECT 1 3 SELECT1 SELECT2 SELECT3 SELECT1 SELECT2 SELECT3 SELECT1 SELECT2 SELECT3 CPU U22A 74VHC00 U25A 74VHC10 U22B 74VHC00 U22C 74VHC00 1 2 4 5 9 10 U9A 74HC86 U9B 74HC86 U24C 74VHC00 U24D 74VHC00 U25C 74VHC10 WRDY_DS...

Page 14: ...2 AUX_SEND_AL AUX_SEND_AL AUX_SEND_AR AUX_SEND_AR AUX_SEND_BL AUX_SEND_BL AUX_SEND_BR AUX_SEND_BR AIN3 AIN3 AIN4 AIN4 AUX_SEND_AL AUX_SEND_AL AUX_SEND_AR AUX_SEND_AR AUX_SEND_BL AUX_SEND_BL AUX_SEND_BR AUX_SEND_BR WRDY_DSP2 DRDY_DSP2 WRQ_DSP2 RST_DSP2 SO2 SI2 SCK2 AD_OUT2 AD_OUT3 AD_OUT4 DSP1_OUT1 DSP1_OUT2 DSP1_OUT3 DSP1_OUT4 AD_OUT1 DSP2_OUT1 DA1_IN_D2 STEREO_OUT_L STEREO_OUT_L STEREO_OUT_R STER...

Page 15: ...C15 100 10 C54 NON C7 0 01 L1 22µF C8 0 01 C14 100 10 A 5 AGND DGND D 5 R30 10K R29 10K BATT_VOL CPU PIN9 C16 100 10 D 9 R5 1 U1 NJM2360 R6 1K D 5 R7 3K C11 470P L2 220µF C17 120 6 3 D3 EK13 DGND DGND ADGND AD 5 D 5B C9 0 01 D1 DSK10C D2 DSK10C D8 DSK10C J3 FPC 17P to FADER J1 YKB31 0014 9V DC IN STOP MODE STOP MODE SETTING VCC 7V STOP U3 NJM2103 U5 TA78DM05 U11 78M05 Vin DGND GND Vout B1 CR2032 D...

Page 16: ...1 R510 R419 R330 C322 R331 R319 C330 1 2 1 8 PHONES PCB Foil Side J412 J411 J413 C423 R423 R323 R324 C323 C324 R317 C420 C331 U410 U210 C413 PCB PHONES VM08 C427 C415 C320 R321 R320 R318 C319 U413 U414 C328 R322 C321 R420 R421 C422 C421 W301 C419 R418 C313 C315 R416 C416 R4145 R316 C316 R314 R315 C314 R313 R312 R311 C327 1 1 8 J451 C321 C311 C412 C411 C417 R411 C317 R510 1 1 2 R422 R424 L411 U411 ...

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