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Tascam M-300 Series

1. con 4 21 4 21 BLOCK DIAGRAM M 312 M 320 1 2 3 1 ASS Y 312 CHANNEL 112 M 320 CHANNEL 14520 I 7 1 iN fuu d ONLY CHANNEL FROM MASTER PCB TAME IN B EO CHEE Wa TAPE LEVEL p EN 1 utut OuBV lt 1 0 775 Vs 0 176 Vres 2 OPERATIONAL LEVEL i0d6V 3 INPUT EQUALIZER C 4 mwa ue a IY 104 JACK D oux 0 www uq H LINEAR STEREO K D XLR 3 32 ae VU METER OM LEO gt WVERTING 4 CONNECTION MODE gt NON INVERTI AMD Suwa NODE 5 BALANCED o 9 E Ve i gu 00 ETE T hide 1 METER ASS Y 292222 m he E THER PCB Mt ai i RAL B z EE ue s s 4 22 LEVEL DIAGRANMS M 308 1 1 2 3 4 MAIN SIGNAL FLOW eee he RIA CH 1 4 40v I deen a
2. 3 10 3 11 MONO AMP 5 3 12 3 12 MONITOR Ass y 3 13 3 14 3 13 MON BUSS Ass y 3 16 3 14 METER ASSY 3 16 3 15 TALKBACK Ass y M 312 M320 3 18 3 16 JACK PCB ASS 3 20 3 17 JACK PCB e eec i EE RD 3 20 3 18 PCB Ass y n e X aG 3 20 3 19 SUB IN PCB ASS eR Dee 3 22 3 20 PCB Ass y 312 320 3 22 3 21 TR PCB A in u ODE E RUE 3 23 3 22 TR PCB Ass y B 3 23 3 23 POWER SUPPLY Ass y 3 24 3 24 SW 606 89 3 24 3 25 Ass y 308 Japan Model 3 27 4 SCHEMATIC DIAGRAMS 4 1 Wiring Diagram 308 4 1 4 2 Wiring Diagram 312 4 2 4 3 Wiring Diagram M 320 4 3 4
3. EN 5 DESCRIPTION Ceramic 22pF Ceramic 22pF 312 M 320 Ceramic 22pF Ceramic 68pF Cersmic 68pF 312 320 Ceramic 68pF Elec 47uF 25V Elac 47uF 25V M 312 M 320 Elec 47uF 25V Ceramic 0 1 Elac 47gF 25V M 312 M 320 Elec 47 10V M 312 M 320 RESISTORS D D 313 32 50k2 0 20k11 A C with c click 1 J301 J302 P303 P303 P304 P305 J306 J307 301 S302 5303 PAN PARTS NO DESCRIPTION CONNECTORS 5336164900 5336164600 5336128600 5336129000 5336129000 5336128400 5122373000 SWITCHES 5300037800 5300039300 9P F 6P F 6P 10P M 10P M 4P M 2P F M 308 M 312 M 320 Push sw 2 2N Push sw 4 2N 312 320 MISCELLANEOUS 5181761000 5181763000 5181764000 Jumper wire 5mm Jumper wire 10mm Jumper wire 12 5mm MONITOR PCB Ass y REF NO PARTS NO DESCRIPTION 5200156200 PCB Ass y M 308 5200156210 M 312 M 320 5210156200 PCB ICs U401 U403 5220416600 NJM2041DD U404 5220468000 NJMO72DE U405 5220362000 66 U406 5220416600 NJM2041DD TRANSISTORS 0401 0402 5146151000 25 1815 Q403 5145150000 25 1015 68 Q404 5145151000 2SC1815 GR DIODES 0401 0404 5224015000 15133777 D405 5225009700 LED Ass y ALE0606 AR R403 R404 R405 R406 R407 R408 R409 R414 R415 R416 R417 R418 R419 R420 R421 R422 R423 R424 R426 R
4. T B IN I sodsv TALKBACK LEVEL 9 098 Lee 1 8 CONTROL 4 1 sao SENSE 10 EFFECT RTN umm cuo SUB IN EXT SOLO TO BUSS F ROMA EFFECT T LEVEL _ OTHER 1 190987 50 60 MAX Me OTE xm Uum mur e w 70 80 790 EFFECT LEVEL 73 1484 Tio ae 2990 LEFEECT AUX OUT 7 1348 lt 0 1 asvt EFFECT AUX 7 E 26 2 f 1 ieu ipii 1 e eae LMON OUT Lj 1 Coen 1 1 H 2 8948 M TITI MON OUT Rj lt MONITOR roc TEB li 2 s 1088 I d 12280 PHONES 5010 L5W L5w 2 20 FROM SOLO CONTROL gt min 4 2248 5 min HOV 1 0 489 A T EFFECT AUX MON OUT 14 EFFECT AUX MON 90LO OUT FROM SUSbsv 20 dBV NOTE OPSRATIONAL LEVEL I dBV O d8V Vrms 008 0 775 Vrms Od6m 4 SOLO EFFECT AUX MASTER MONITOR MAINTENANCE 1 LEVEL SETTING AND OPERATION CHECK
5. 342 CHANNEL 2 ly high Mic signals line level signals insert the 30 dB Pad b LINE Tape TRIM Lower Knob Provides variable attenuation for signals from the LINE INput connector and the TAPE Return INput jacks EQualizer The 300 equalizer or EQ section offers the user a comprehensive control network for the ad justment of the tonal structure of the signal The EQ system is divided into three sub sections High Frequency controlling all signals above 10 kHz Midrange for control over signals from 200 Hz to 4 kHz and Low Frequency provid ing control over frequencies from 1 kHz down to 50 Hz and below The high frequency section is shelving type and allows the 12 dB boost or cut at 10 kHz The midrange section is a quasi parametric or sweep type network The concentric lower knob selects the center frequency from 200 Hz to 4 kHz The upper knob provides for 15 dB of boost or cut at the chosen center frequency The band width also known as the Q is fixed at 7 6 of an octave or a Q of 1 6 The low frequency section is also a quasi para metric sweep type network The center frequen cy range is from 1 kHz down to 50 Hz The gain range is 15 dB of boost or cut The band width is 7 6 of an octave corresponding to Q of 1 6 320 CHANNEL 120 Both the mid and low frequency networks peak dip designs For more information on EQ see page 44
6. SOPRANO f ALTO 8 ELUL ELECTRONIC MUSIC INSTRUMENTS Ae EFGABCDEFGABCDEFGABCDEFG t 2222 38 84882852 588815515883585588888808885883885882558282585855 e w See eA Owr or ONOONO GO 5 855288599 2 22 9582222 858688388885 88888 28826898885 gt 0 45 Pre amp Post EQ When Using a Limiter Many engineers like to EQ the low end before limiting to help avoid excessive pumping of the signal If this is what you want to do and you have another channel free do this Take the DIRECT OUT from the first nput Channel go to the limiter use the first channel for your send and Dont Assign The First Channel To Any Output It is not going to have all of your signal control modifications and will not be limited To reach a BUSS patch from the limiter out to the se cond nput Channel s INSERT jack Now you can set the limiter input level with the first channel s TRIM and fader do part of your EQ and run your final signal with the second channel s fader You will have EQ available both before and after the limiter with the minimum of electronic stages This patch is also recom mended when pre amp post EQ are desired for use with any signal processing unit and will also give you double using the smallest possible electronic package for those stubborn processing
7. tN 55041 sj ge 38 22 INPUT ASS Y Cic 1 OEY CORE IN ay AUX 1 4 Signal Routes t L lt UE METER PCB ASS Y aad d E MASTER ASS Y i I ES es ar H q CONTROL 24 25 AUXILIARY AND EFFECTS MASTER SEND CONTROLS MASTER Level Controls Each of the two M 308 or four M 312 or M 320 AUX systems and the EFFECTs system has its own independent MASTER LEVEL control allowing up to five different AUX or EFF signals or mixes to be controlled Each of these rotary controls functions in an identical manner sending its finalized signals to the respective outputs AUX 3 amp 4 SUM Switch 312 amp M 320 ONLY This switch allows the signals from AUX amp 4 MASTER controls to be summed together creating a monaural mix of the signals which is then available at both the AUX 3 amp 4 OUT PUT jacks AUX and EFFects OUTPUTs This series of 1 4 Phone jacks provide output from the AUX amp EFF busses found on the 300 Each jack provides an independent line level signal whose output level references are 1 4 0dBu RCA 10 from its corresponding MASTER CONTROL EFFECTS RETURN SYSTEM The 300 Series is equipped wit
8. 1 wa Aan 4 20 101 si 4 3 0 10 P i wau E 1 ord 4 840 5 301 4 sors 404 2 m aux 3 4 aux 1 21 0 CENT 1 STEREO 4 8407 39 g gt gt 2 k I gt 4 2 0 10 10 M H 5 010 11 AF x Sc mor 39026 2 3 _ 5402 4 aux s MX i 1 ie vARNssO MONITOR 4 14 STEREO 1 STEREO 342 Poge a 21C 10 320 4 3 101 Wr 312 4 C 10 Ext 2 amp 320 3 10 ext o L 3 Page 4 4 s METER L METER put FADER L M 312 Page 4 2 C 9 10 FACIE M 320 Pre 4 54C 9 01 59 7 4 21 9 101 our 42060 4 3 6 94 SOLO 2 4 2tC M MONITOR BED Pogo 4 5 C 40 8 20 Page 4 0 8 4 00 61 mows R NIM 20400 NJ4204 00 204 DO NJMOT20 E 1 4966 20 00 GR 25 09 GRI 2200 7 89153777 189133777 138133777 81 0606 R Hii 4 15 METER PCB ASS Y 1 2 i 3 090 090 0
9. 4 3 0 5 TO PINS OF 0201 0203 R205 C207 22 204 C206 12 0716 C208 22 020 272 AUX BUSS 3 AUX BUSS 4 BUSS IN 312 4 2 D M 320 Poge 4 3 D ST t BUSS ST R BUSS SOLO BUSS ow D SENSE 0203 RED 312 Page 4 2 0 5 302 Page 4 3 0 5 0201 NuM204100 0202 0 U203 NJM204IDD DE 93 1 0201 SLP235 B O 0202 SLP235 8 ME 0203 SLPI35 8 BUSS ANP PCE 9202 2 Ueo3 1212 6 8k R214 10k 2210 0 C21 47 9206 217 0 9207 5 6 7 8 MASTER QUA MASTER 6 924 BAL UNBAL 8209 534 EL is P5 BUSS JACK PCB ASS Y 4 254 U 5 RTN 567 8 214 10 6V y Ae 65 Page 4 4 C 2 P204 METER 312 4 2 5 i E M 320 Page 4 3 C 5 assy 4 6 4 7 AUXILIARY PCB ASS Y M 308 0305 0306 0305 6 0301 u302 U302 030 0302 N 2206 dee Tp PIN BOF IOI 0302 0308 U306 ov Py lt Page 4 1 0 1 BUSS aux buss 2 Ci EFFECT 8053 enge 4 14 82 EFFECT 0 1
10. P567 5336167200 12 M 312 M 320 P568 5336166400 4P M M 312 M 320 P569 6336127000 10 M P570 5336126300 M MISCELLANEOUS 5240031420 Carbon res 22k2 1 8W 5 5181761000 Jumper wire 5mm 6181762000 Jumper wire 7 5mm 5181763000 Jumper wire 10mm 5181764000 Jumper wire 12 5 mm METER PCB REF NO PARTS NO DESCRIPTION PARTS NO DESCRIPTION 5200145800 Ass y P901 Mounted CAPACITORS 5200145810 PCB Ass y P901 Not mounted C901 C902 5260211450 Elec 2 2uF 5210145800 PCB 5260213150 Elec 22uF 5260212950 Elec 22uF IC 6260211050 Elec 0 47uF 5260212450 Elec 10uF 0901 5220406700 RC4558P VARIABLE RESISTORS TRANSISTORS R905 R906 5053446000 Semi fixed 1 2 B O901 Q902 5230779520 2SC1815 GR Q903 Q904 5145150000 2SA1015 GR MISCELLANEOUS DIODES P901 5336128500 Connector M 5800606900 Spacer LED 0901 0904 5224015400 1k60 5181761000 Jumper wire 5 0905 0906 5225005400 LED SLP135B RED CARBON RESISTORS Ail resistors are rated 5 tolerance 1 6W and of carbon type uniess otherwise noted 8901 R902 5240033020 100k2 R903 904 5240028420 1 2 0 R907 R908 5240030620 10ks2 R909 R910 5240029020 2 2kN R911 R912 5240028420 12 0 R913 R916 5240032220 47k h R917 R920 5240030620 10k R921 R922 5240027220 3800 3 15 TALKBACK PCB Ass y M 312 M 320 TALKBACK LEVEL PGM STEREO AUX 2 3 AUX 4 TB PCB Ass y M 312
11. 3 19 SUB IN PCB Ass y SUB IN NOON 77 PGM L R EFF 3 20 TB MIC PCB Ass y M 312 M320 T8 IN 3 2 EXT IN 308 Not mounted 3 21 PCB Ass y 3 22 TR PCB Ass y 23 3 23 POWER SUPPLY Ass y PHONES 3 24 SW PCB Ass y PCB Omitted PARTSNO DESCRIPTION 5200145400 PCB Ass y 13 GE 5200145410 lusi 5200145420 Ass y ICI 5200145430 IE UK Al 5210145400 PCB SPARK KILLERS 2001 5052907000 0 01nF 3002 300 J GE 2001 255052910000 0 033uF 12051 125 lus 2001 2 5292002600 0 0330 12082 125V 2001 2002 5267702500 SWITCH ius U S A 5001 5300030900 SDL P CANADA GE GENERAL EXPOR1 MISCELLANEOUS AUSTRALIA 5327007200 Terminal Lapping 2P EUROPE UK U K LL LIMITED AREA 2 JAPAN 3 24 POWER SUPPLY PCB Ass y REF NO PARTSNO DESCRIPTION REF NO PARTSNO DESCRIPTION 5200155300 fJ GE 308 C013 5260161150 Elec 22uF 50V 5200155310 Assy US C M 308 C014 5260165052 Elec 474 10V 5200155320 Ass y E UK 308 C015 0016 A 5173088000 Elec 220000 C017 C018 A 5173433000 Ceramic 0 010 5200157400 GE M 312 C019 C020 5173433000 Ceramic 0 01 5200157410 US C
12. 4 22 4 23 Level Diagrams M 30B 4 23 4 24 4 24 Level Diagrams 312 320 4 25 4 26 2 MECHANICS EXPLODED VIEWS AND PARTS LISTS 2 1 EXPLODED VIEW 1 DRESS PANEL M 308 Exploded View 1 Parts marked with require longer delivery time COMMON REF NO PARTS DESCRIPTION MODELS REMARKS 1 1 5800666000 Cover Meter L 1 2 5800665100 Board Side L 1 3 5800666100 Cover Meter Ass y R 1 4 5504411000 Screw Ass y Side Board 1 5 5800666801 Chassis Side L 1 6 5800662601 Holder Bottom Cover Bracket 1 7 5800665501 Plate Upper Reinforcement 1 8 5800611300 Knob Ivory M 106 1 9 5800611600 Knob Ass y D Blue M 106 1 10 5800611700 Knob Ass v E Green M 106 1 11 5800645800 Knob B 1 12 5800662300 Knob Ass y Small C Yellow 1 13 5800611500 Knob Ass y Yeilow 1 14 5800662200 Knob Ass y Smell B Red 1 15 5800611400 Knob Ass y B Red 1 16 5800607000 Escutcheon 1 17 5800677100 Knob Fader G 1 18 5800677200 Knob Fader H 1 19 5800677300 Knob Fader J 1 198 5800677400 Knob Fader K 1 20 5800667900 Pad Ass y A 1 21 5800664501 Angle Front 1 22 5800665401 Panel Front 1 23 5800664201 Bottom Cover 1 24 5800668900 Cover Bottom L 1 25 5800669001 Cover Bottom R 1 26 5800669101 Cover Bottom 1 27 5504676000 Foot 191 1 28 5800665200 B
13. E UTE 2 i NOLLO3S it 48 i eme 2 8 5 i ucc icu E Ear 2 3 h f 3 31 Psi 1 t MI ism ES Se eee S xj sn 1 BUSS PCB ASS Y 4 2 WIRING DIAGRAM 312 5508 H het g Assv NOV INP BUSS 45577 HHI TO O 6597 1057 26 Pte PN al INP BUSS PC8 ASS Y 11 10 ALAR 1 E MONO K vom a s zat i 4 uH ASS Y 8AL AMPR ar T 72 d EE E 1 ig H 0 3 SE nu I p gt a 9d I 25 z Z z i i 1235 E SSNS H i 148 zs lt r m ma m AM H 1 i 2 i 4 al pee i i i i HEL di i E id 1 5576 i i 4 i unn LTU gt a ret me
14. O O WIRE l i i CH 8 CONTROL SIGNAL 9 I i Nu MASTER ASS v Edna M 308 LEVEL DIAGRAMS L MAIN SIGNAL FLOW TT oe oon ee 1g FROM POM MASTER ASS Y IN 98 10 Low HIGH AIT MIC TRA 70 60 Lt Xo 2 NOTE INPUT OPERATIONAL LEVEL FADE O ABN 1 Vra 069 0 775 wae On 0 779V me ait iid GE SENSE 1 1 08 1 1098 01 FROM STEREO CHANNEL MASTER STEREO MONO MONO OUT POM STEREO OUT eo TO EF ECT AUX BUSS STEREO 4 46 8 o oa PGM STEREO MONO MASTER TO STERBO BUSS FROM IO MM M IN 20 30 40 EFFECT chica 80 LEVEL 69 EFFECT MONITOR SIGNAL FLOW 20 730 40 50 80 po FERO R RTN s X ULIS PM E s s TO BUSS E
15. 10680 8 1 MONITOR 1 848 FREE 12248 7 MAX i 2 gt FROM SOLO CONTROL F T TT x J ow m 8 01 EFFECT AUX MON OUT meee wasa A 1048 EFFECT AUX MON SOLO OUT 10 720 OPERATIONAL LEVEL 1049 dBV Vrms dBu O 775Vrms O dBm 0 775 Wms b SOLO EFFECT AUX MONITOR MASTER 4 23 LEVEL DIAGRAMS M 312 M 320 1 2 l 3 4 MAIN SIGNAL FLOW ke yu LMC IN soav B FUNE RI dev 216 LOW TOEFFE 50 i 2 1 30 1 I D t eo M1 1 _ BAX 1 1 1 is LINE LEVEL i NOTE FADER amp FFECY AUX OPERATIONAL LEVEL Qd8V 1 Vrms 0 0 775 Vrms E 0 775V me STERE M 9093 2 3 AX BUSS 4 65 ass POM MASTER c FT REDE HER V ga 4 i S FROM STEREO R CHANNEL WAUX 8055 ve PGM STEREO
16. 312 5200157420 Ass y UK 312 C021 C022 5260162550 Elec 10uF 16V C023 C024 5260165052 Elec 470 5200158100 IJ 320 C025 C026 5173453000 Ceramic 47pF 5200158110 PCB Ass y 05 320 C027 C028 5263167423 Meta 0 039uF 5200158120 Ass y E UK A M 320 FUSES M 308 5210155300 PCB M 308 5210157400 PCB M 312 F001 F004 5307004100 2A 250V US C J GE 5210158100 PCB M 320 001 F004 5142189000 2 250 E IC s FUSES M 312 U001 55220413100 NJM78M15A 001 002 5307021200 2 5 250 Siow blow 0002 5220420500 05 J GE 0003 5220411000 NJM78M06A F001 F002 5142190000 2 5 250 E UK A 0004 5220411100 NJM4560DX F003 F004 5307021600 4A 250V blow j US C J GE TRANSISTORS F003 F004 5142192000 T4A 250V E UK 2005 A 5307020400 1A 250V Slow blow 0007 0008 5230779520 25 1815 GR IUS J GE 0009 0010 5230750000 25 1015 GR F005 55041140000 T1A 250V E UK A Q011 Q012 5230780600 25 2877 0 0013 Q014 5230018500 2SA1217 FUSES M 320 DIODES 2001 2004 530702160 4A 250V US J GE D001 A 5228005900 602 001 004 514219200 T4A 250V 0002 0003 5143089000 3 2005 5307021000 2 250 Slow 0004 0005 5143016000 0058 05 GE 0006 A 5228005000 W02 F005 A 5142189000 T2A 250V 0007 0014 5224015000 15133777 MISCE
17. 70 dBV 0 3 mV 32 dBV 40 V 34 2 dBm 40 V 30dB 16 k ohms 1048 03 V 20 dBV 0 1 V Shelving High Sweepable Middle Low 10 kHz High 200 4 kHz Middle 50 1 kHz Low 112 dB High 1508 Middle Low Sat to light at 25 dB above nominal 100 ohms 2 k ohms 10 k ohms TOdBV 0 3 V Maximum Output Level Input Impedance Nominal Input Level Maximum Input Level DirectOutput Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level 18 dBV 8 V 5 k ohms 10 dBV 0 3 V 11 dBV 35 V 100 ohms 2 kohms 10 k ohms 10 dBV 0 3 V 18 dBV 8 V Buss Sub Input PGM STEREO EFF ECT AUX Input Impedance Nominal Input Level Maximum Input Level PGM Insertion Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Input Impedance Nominal Input Level Maximum Input Level PGM Output XLR Type Output Impedance Minimum Load Impedance Nominal Load Impedence Nominal Output Level Maximum Output Level RCA Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level AUX Output Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Laval Maximum Output Level RCA Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Effect Output 1
18. COMMON REF NO PARTS NO DESCRIPTION PARTSNO Description REMARKS MODELS REMARKS 3 1 5334041700 Connector Socket BNC type M 320 M 312 3 2 5800677500 insulater M 320 M 312 3 3 5800662700 Washer Insulating M 320 M 312 3 4 5800666201 Panel Top 20 M 320 5800666301 Panel Top 12 M 312 5800666401 Panel 8 M 308 3 5 5200157700 PCB Ass y TB MIC M 320 M 312 3 6 5800664001 Bracket BUSS PCB 3 7 5800663300 Support PCB 3 8 5600429400 Button Push C Red 3 9 5800429200 Button Push A Ivory 3 10 5800429300 Button Push 8 Orange 3 11 5800429600 Button Push Green 3 12 5800429500 Button Push D Blue 3 13 5200155500 PCB Ass y INPUT 3 14 5800664800 Holder PCB M 308 5800664900 Holder PCB 8 M 312 5800665000 320 3 15 5200155810 PCB Ass y BUSS AMP M 320 M 312 5200155600 PCB Ass y BUSS AMP M 308 3 16 5200156110 PCB Ass y AUX M 320 M 312 5200156100 PCB Ass y AUX M 308 3 17 5200156210 PCB Ass y MONITOR M 320 M 312 5200156200 PCB Ass y MONITOR M 308 3 18 5200157600 PCB Ass y TB M 320 M 312 3 19 5800475700 Button P I 3 20 5284009100 Ver Res Slide 10 k 2 D 3 21 5284009000 Ver Res Slide 5 k2 D 3 22 5200157900 PCB Ass y INP BUSS C M 320 3 23 5200157800 PCB Ass y INP BUSS B M 320 M 312 3 24 5200157100 PCB Ass y INP BUSS A 3 25 5200157210 PCB Ass y MON BUSS M 312 M 320 520
19. U403 0404 0405 0404 0401 0403 9404 0402 040 04020405 s a 0 ANIM MO TOLD TO FIN OF 0404 0404 ov od 5426 9 ov ep Er 91 gt E d C TO 4 OF U40 v 4 406 2 Raog Page 4 1 IG D IO 540 5 341 3 ie DE 16 5429 87 25 425 J402 5 U404 1 V404u a ha NE iri CI p MI 00501 4 1 10 ee MONITOR ASS Y STEREO Page 4 1 101 STEREO L ET IL ext i Ext au Ext 2k Page 4 iC 5 4 1 B C 2 TI a Pos 4 1 C 10 STOUT Pegs 4 6 1 out SOLO our 8 L momor w Pope 4160 10 PHONES L 0 6 7 PHONES 0400 204100 LC 4986 488204100 25 5 2906 Gas gm 15613377 88153177 133133777 38133777 00806 R 4 14 MONITOR PCB ASS Y M 312 M 320 1 2 0403 0404 0401 U405 U402 U404 U406 0401 0403 0404 0402 0401 04024 0405 mag 28 Anin TO Pin 9 OF usol 9406 yaos REESE Spe e
20. gt iji i i i 4 4 2 4 3 WIRING DIAGRAM 320 E M none i n d m PN E M EE PCB ASS Y noi INP JACK INP BUSS PCR ASS Y i 8 ASS Y 4 3 10 xw x Fen a MONITOR ASS Y 64 1 41111 H 0 varsa AUX PCB ASS Y kr BAL AMP R 771 00 NO 123S 5 5578 i 5 4 BAL AMP L 1 t H t t t 2222 12 7 1 M T i b UCCELLI HEE i t S E k e gt HI trf gi m Sr r 1 J 1 8 EL i 1 i o ma 3 z i i 1 n ASSY 82d i i i 1 NOIL23S p d THIEL 5808 pa i U o o i i 4 4 INPUT PCB ASS Y 1 UiO 003 QIC 0102 o SET 8 r 1 i5 1 5
21. o first A S MASTER PCR TAPE CMPLD GOAT w ne a eme PROGRAM MASTER SECTION Program Master Fader Each of the four PROGRAM sections contain a 100 mm Fader for the setting of the final PRO GRAM output level As in the case of the Channel Faders each carries gradient scale markings for relat ve level indication Program INSERTion Jack As in the channel section the PROGRAM SECTIONS are fitted with a standard 1 4 stereo break jack providing POST FADER access to the signal flow within the respective PROGRAM The input ring side of this jack provides the final PROGRAM signal to the TAPE RTN SELECT SWITCHES AFL circuit and of course the various PROGRAM final outputs AFL After Fader Listen Switch The selection of this locking switch sends the PROGRAM signal to the SOLO buss providing the operating engineer access for monitoring the final PROGRAM content The take off point is after the PROGRAM FADER and INSERTION JACK PROGRAM GROUP OUTPUT SECTION REAR PANEL FEATURES OUT put Connector XLR
22. 0 dB reference voltages O dBV is referenced to 1 Vrms 0 dBm O dBu is referenced to 0 775 Vrms 1 1 MASTER FADERS AND POTS Connect a 10 dBV 1 kHz signal to the input jacks listed in the table and by adjusting the MASTER faders and MASTER pots of the channels being checked confirm that the relative outputs provide nominal output level signals Controls Input Jacks PGM Master Faders between 7 8 on the scale Output Jacks PGM OUT 1 PGM OUT 2 PGM OUT 3 PGM OUT 4 Output Nominal Levels 4 dBm at XLR connectors 10 dBV at RCA phono jacks Stereo Master Fader L between 7 8 on the scale Stereo Master Fader R between 7 8 on the scale MONO Master Fader between 7 8 on the scale STEREO OUT L 4 dBm at XLR connectors 10 dBV at RCA phono jacks stereo STEREO OUT R Or 0 dBu at 1 4 phone MONO OUT jack mono EFFECT Master Pot AUX 1 Master Pot AUX 2 Master Pot EFFECT OUTPUT AUX 1 OUTPUT AUX 2 OUTPUT 0 dBu at 1 4 phone jacks 10 dBV at RCA phono jacks AUX 3 Master Pot AUX 4 Master Pot EXT SOLO SOLO level pot AUX 3 OUTPUT AUX 4 OUTPUT SOLO OUT 10 dBV EXT 1 and EXT 2 in the MONitor select switch rack MONITOR level pot PHONES level pot EXT IN 1 L amp R EXT IN 2 L amp R M 312 M 320 only 1 2 VU METERS Check that the VU meters indicate 0 VU when PGM OUT 1 4 and STEREO OUT amp R provide the nominal level readings If the meters
23. 3 4 35 INPUT BUSS M 320 3 4 36 BUSS Ass y 3 6 37 BUSS JACK PCB 3 8 38 BAL L 3 8 39 BAL AMP R PCB 3 8 3 10 AUX 3 10 3 11 MONO 3 12 3 12 MONITOR Ass y 3 13 3 14 3 13 MON BUSS PCB Assy 3 16 3 14 METER As y 3 16 3 15 TALKBACK Ass y M 312 M 320 3 18 3 16 JACK Assy 3 2 3 17 JACK PCB Assy 3 2 3 18 JACK C 3 20 3 19 SUB IN PCB 3 22 320 TB 312 320 3 2 321 TR PCB Assy 3 23 322 TR Ass y B 3 23 3 23 POWER SUPPLY 3 24 324 SW Ass y 3 24 3 25 RIAA 308 Japan Model Only 3 27 4 SCHEMATIC DIAGRAMS 4 1 Wiring Diagram M 308 4 1 42 Wiring Diagram 312 4 2 4 3 Wiring Diagram M 320 4 3 44 Input PCB 4 4 4 5 Buss Amplifier Ass y 308 4 5 48 4 7 4 8 45 4 10 4 11 4 12 4 13 414 4 15 4 16 4 17 4 18 4 19 4 20 4 21 4 22 4 23 4 24 Buss Amplifier Ass y 312 320 4 6 Auxiliary
24. 5334041400 5781012605 TR PCB Ass y A REF NO PARTS NO DESCRIPTION REF NO 5200156900 PCB 5210156900 PCB 1801 1803 5330011400 1 4 Jack T RS J601 3804 2805 5330010800 1 4 Jack SW JACK B PCB Ass y REF NO PARTSNO DESCRIPTION REF NO 5200157000 Ass y 5210157000 3811 2813 5330011500 1 4 Jack 1814 5330011400 1 4 Jack TRS PARTS NO 5200145600 5210145600 5230017700 DESCRIPTION PCB Ass y PCB 8 F Screw Pan head Tapping 6 x 5 DESCRIPTION PCB PCB Transistor 2541264 0 JACK REF PARTS NO 5200156400 5200156410 5210156400 J821 J823 5330011500 4824 JB25 5330011500 DESCRIPTION PCB Ass y Ass y PCB 1 4 Jack 1 4 Jack TR PCB Ass y B 308 312 320 312 320 SUB Ass y PARTS DESCRIPTION 5200156300 5200156310 5210156300 CARBON RESISTORS All resistors are rated 5 tolerance 1 6W and of carbon type unless otherwise noted RB61 R809 5240031420 R870 R871 5240031420 22k2 22 0 CONNECTORS 3861 5330507200 4862 5330507300 J862 5330507200 3864 5330507200 RCA jack 4P RCA jack 6P RCA jack 4P RCA jack 4P 308 312 320 312 320 312 320 5200145610 5210145600 5230779400 DESCRIPTION PCB Ass v PCB Transistor 2SC3181 0
25. EQ ON Switch This switch allows the signal to be sent to routed around the EQUALIZER section Wher the switch is in the down position the signa in the channel is sent to the EQ for processing Use the up off position if the signal it the channel has already been sent through equalizer or requires no tonal adjustment it car be routed to bypass the EQ electronics entirely AUXiliary 1 amp 2 Controls The AUX systems are non dedicated busse which can be used for Headphone Cue Effect Send Echo Send Monitor Foldback Broadcast Remote Feed and reference Recording Busses These two controls provide identical functions Each determines the level of signal sent to theil 1 PCE coa t 8531 DS MASTER ASS Y i p O EE DC m respective circuits or busses Each control can receive and process a signal from a different source or point within the channel 5 signal path AUXiliary LINE and POST Select Switches These two switches determine the source of the signals sent to the AUX controls The LINE switch located beneath the AUX 1 control al lows the selection of signal between either the LINE INput or the channel The LINE signal can be selected even if the channel signal is derived from the MIC INput If the channel signal is selected the signal is taken just after or post the EQualizer Additionally there is an internal ju
26. MIC IN gt D OUT 1 4 7 3008 1 5 B OL OverLoad Indicator MIC IN INSERT Send Contact 1 6 9 Channel Assign Switches and Controls MIC IN gt 0UT 1 4 STEREO OUTPUT amp 1 6 15 MON ITOR OUT L amp R 1 7 16 EFFECT RTN SYSTEM EFFECT RTN STEREO OUT L amp R MON OUT L amp R 1 7 PGM OUT TAPE RTN MONITOR SYSTEMS 1 OUT Monitor System PGM gt STEREO OUT L amp R 5 1 8 2 Select Switch 1 18 AUX 3 AUX 4 OUTPUTS 312 amp 320 ONLY 1 10 1 9 TALKBACK SYSTEM 312 amp 320 ONLY 1 10 1 10 FREQUENCY RESPONSE 1 11 1 11 1 11 1 12 S N 1 11 EXPLODED VIEWS ASSEMBLIES PARTS LISTS AND CIRCUIT SCHEMATICS 2 MECHANICS EXPLODED VIEWS AND PARTS LISTS 21 Exploded View 1 Dress Panel 308 2 1 2 2 Exploded View 2 Dress Panel 312 320 2 3 2 3 Exploded View 3 Panel 2 5 24 Exploded View 4 Meter Section Side Chassis R Section 2 25 Exploded View 5 Rear Panel 2 on 3 ELECTRONICS 5 AND ELECTRONIC COMPONENTS 3 1 INPUT PCB As y 3 1 3 2 32 INPUT JACK PCB 3 2 3 3 3 3 INPUT BUSS A 3 4 3 4 INPUT BUSS B PCB Assy 312 320
27. A 4 Track Recorder Stereo Synthesizer Electric Guitar Lead Track 2 gt N AJ Vocal Mic Lead Track 3 37 Also shown 15 the performers CUE system which provides selective signals to headphones In our example we use a TASCAM MH 40B Head phone Amplifier The CONTROL ROOM system is driven from MONitor OUTPUT system The signals available are switchable using the MONITOR SWITCH RACK allowing the engineer to make critcial evaluation of the various mixes Additionally the SOLO system automatically switches any signal selected to the SOLO buss to appear at the MONitor OUTPUTs The STUDIO system is connected to the MONO OUTPUT jack This allows the engineer to play back various mixes or other sources for the rehearsal usage by the in studio talent Once actual recording commences this output is closed to eliminate track bleed through and the performers can hear only through their head phones Since the CUE system is driven from the AUX sends the composition of the signal can be quickly changed and controlled depend ing on the needs of the performers Recording the Basic Tracks Remember in the live session we needed to mix all the signals simultaneously ultimately achiev ing a stereo left and right signal pair Here we will use the four PGM busses but we don t have to mix and record all the signals at one time By building the multitrack master tape in layers on
28. Rod Bracket Switch PCB Ass y SW J GE PCB Ass y SW US Ass y SW PCB Ass y SW E UK A Transformer Power J Transformer Power US Transformer Power E UK Transformer Power GE Transformer Power J Transformer Power US C Transformer Power IE UK A Transformer Power GE Chassis Side R Bush 4N 4 J GE E A Bush 4N 5 US C UK Cord AC Power J Cord AC Power US C Cord AC Power E Cord AC Power UK Cord AC Power A Cord AC Power GEI PCB Ass y TR A PCB Ass y TR B Plate Insulating Heatsink Bracket HP Jack PCB Ass y PONER SUPPLY J GE PCB Ass y POWER SUPPLY US PCB Ass y POWER SUPPLY IE UK A PCB Ass y POWER SUPPLY J GE PCB Ass y PONER SUPPLY US C PCB Ass y POWER SUPPLY IE UK A PCB Ass y PONER SUPPLY J GE PCB Ass y PONER SUPPLY US C Ass y POWER SUPPLY IE UK A Bracket Voltage Selector GE Socket Voltage Selector IGE Plug Voltege Selector Rivet Push M 320 M 312 M 308 M 308 M 308 M 308 M 308 M 320 M 312 M 320 M 312 M 320 M 312 M 320 M 312 M 308 M 320 M 320 M 320 M 312 M 312 M 312 M 308 M 308 M 308 9 US A CANADA GE GENERAL EXPORT AUSTRALIA E EUROPE UK U K LIMITED AREA 1 JAPAN 2 5 EXPLODED VIEWS REAR PANEL Exploded View 5 Parts marked with require longer delivery time COMMON R
29. 10pF 100pF Etec Ceramic Elec 47uF Elac 104F RESISTORS Sk A 20kn 20 0 47uF 0 0 5 5336164400 5336164700 5336128600 5336128800 5336128200 5336128700 5336128400 612237300 SWITCHES 5300039000 5300038900 5300039400 5300039500 F 7P F 6P M 8P M 2P M 7P M 4P M 2P F Push sw 2 2N 6 gang M 308 Push sw 2 2N 6 gang M 312 M 320 Push sw 2 2N 7 gang IM 308 Push sw 2 2N 9 gang M 312 M 320 MISCELLANEOUS 5181761000 5181763000 5800663300 5781023008 Jumper wire 5 mm Jumper wire 10 mm Support PCB Serew Pan head tapping M3 x 8 3 12 MONITOR PCB Ass y MONITOR PHONES Li 54 31220 AUX 2 EFF MONO AUX 2 STEREO EXT iI 3 14 M 312 M 320 STEREO EXT EXT 2 MONO 3 15 3 13 BUSS Ass y 3 14 METER PCB Ass y 290 Mounted METER Assy 520014580 2301 Not mounted METER PCB Assy H 3 16 MON BUSS PCB Ass y PARTSNO DESCRIPTION 5200157200 PCB Ass y M 308 5200157210 PCB Ass y M 312 M 320 5210157200 PCB CONNECTORS P551 P654 5336166400 555 558 5336166300 M P559 P562 5336166600 6P 563 5336166900 9P P564 5336166600 5336158400 66 566 5336166700 7P
30. 2 mM zE cis 6 INP JACK PCB ASS Y ew 1 re m INPUT FADER 479 CI23 47 RIZT 22 UIO2 2 2 A133 6 2k R129 I00k 8 RI32 Sk B 200 C CI RI3 SkiB 200k C C IOkHz 200HMz 4kHz 50 v kHz t UIO3 NJM55320 9101 902 25 1844 DIO DIOG 195133777 Q103 25085 68 0107 0108 SLP 1358 9104 25 5 0109 SLP 2358 2 004 DIO7 DIOS 0106 DIO9 07 10 25v T RI23 3 9 0102 1000 6 3 4 3 5 RD 12 RI24 100 MIC G LINE o RHS Sk 201 cos TRIM 10 25 TO PIN 8 OF UtOl UIO3 lt col Aro 5 0 01 47 25 22 21 ar 1 280 f M 308 Poge 4 1 0 1 TO PIN 4 VOIN UIOS Iz 312 Page 4 2 0 1 rs AUX BUSS 1 320 Poge4 3 0 1 po buss 2 ren Bees I 105 R163 I 22k RIS 09 o 0 2 wio2 7 5 64 22k 152 3 91 x RISG 22x GJ ON RISS SktA CI 559 EG 090 A AN 16 36 cerei TTE RISO 54 39 i 08 100k 1 5 8088 POM MUSS 2 3 POM 0USS
31. 53 1111 SALES OFFICE 4 15 30 SHIMORENJAKU MITAKA TOKYO PHONE 0422 45 7741 TEAC CORPORATION OF AMERICA 7733 TELEGRAPH ROAD MONTEBELLO CALIFORNIA 90640 PHONE 213 726 0303 TEAC CANADA LTD 3610 NASHUA DRIVE UNIT 1 8 2 MISSISSAUGA ONTARIO L4V 1L2 PHONE 416 673 3303 TEAC AUSTRALIA PTY LTD 115 WHITEMAN STREET SOUTH MELBOURNE VICTORIA 3205 PHONE 699 6000 PRINTED IN JAPAN 0285U1 D 47398 p
32. AUX 1I 4 14 1 aun 2 48 4 1 FECT R30 Pags 4 1318 3 030912 2 22 22 8309 cie lt ih I c 9 0306 2 21 P305 411 2 4 11C 91 5 Ju ipm ame T 8 D 7 Page 4 110 91 Q 1342 390 301180 302 JL 2 0302 7 305 NJM0720 306 NJM20 4100 0301 0302 S4 PR358 AUX ASS Y 4 8 AUXILIARY PCB ASS Y M 312 M 320 1 2 3 930 0306 3010306 0301 0302 e TOPINGOF U306 ov gt TO PINGOF 4301 0506 aux MOS i aux aus 2 Aux 0088 ses 4 M 312 pose 4 2 0 8 320 69084 3 10 6 AUX Auk oe aux 3 ow 31 0008 4 2 C 3012721 3 0 4 3 01 AUX 4 040 Aux auk 2 049 994 1210 6 aux 3 4 EBV Erf CT 4 00 1 aux n3 aux P aux Poge 4 14 8 31 aux 4 32 4 2 9 M 320 Page 4 51 lt 9 EFFECT 312 4 2 C 9 erect ATN 2 M 320 Page 4 3 C 9 312 4 2 10
33. Ass y 308 4 7 Auxiliary PCB Ass y M 312 M 320 4 8 Balanced Amplifier L PCB 9 Balanced Amplifier R PCB Ass y 10 Mono Amplifier PCB Ass y 308 4 11 Mono Amplifier PCB Ass y M 312 M 320 4 12 Monitor Ass y M 308 4 13 Monitor PCB Ass y 312 320 4 14 Meter PCB Ass y 4 15 Talkback Ass y 312 320 4 16 Power Supply Section 308 4 17 Power Supply Section 312 320 4 18 RIAA PCB 308 Japan Model Only 4 19 IC Internal Block Diagrams 4 20 Block Diagram M 308 4 21 Block Diagram 312 320 4 22 Level Diagrams M 308 23 4 24 Level Diagrams 312 320 4 25 4 26 C panana e 531111111111 101111111111 071 Ss i S OS ISO i a LO liey FUNCTIONAL SEQUENCE M 312 M 320 Pad 30 Psl OL Indicator PFL Paien o gi oN INSERTion lt mic IN Leb 288 2 chal LINE iN 1 Pre Post EQ EFFECT 62 C POST Switch ince LY PGM 1 Fader PGM I
34. MASTER MONO MASTER 79 ouse _ FROM 2 OR TAPE IN LEVEL LEFEECT RIN tO Bu 50 60 MONITOR SEL TALKBACK LEVEL SO 1008 EFFECT RTN SEER emu SUB IN EXT SOLO U 2 age I From pus MIN OTHER I l 1 pees MEG 1 T 8 LEVEL l MAX LEVEL 4 2 00 17 1396 69 EFFECT AUX MASTER FROM STERED MONO EXT i 2 ESVELT AUX t 3o48v 09 I I H 1 2 7848 1 i i L SOLO EFFECT AUX MASTER CERT 1 OUT L3 9 t o 2 tod j7 IO Graa MONITOR A gt 2246 PHONES 150 v 2248 PHONES 10400 EFFECT AUX MON OUT SOLO 1048 EFFECT ALIK MON SOLO OUT NOTE OPERATIONAL LEVEL IOdBV OdBV Vrms OdBu 0775 048 0775 MONITOR TASCAM TEAC Professional Division TEAC CORPORATION MAIN OFFICE 3 7 3 MUSASHINO TOKYO PHONE 0422
35. Nonfiammabie C201 C202 5260165252 Elec 47uF 25V R203 5240031 420 222 C203 5260165952 Elec 100 10V R204 5240030820 1265 C204 5173449000 Ceramic 22pF R205 5240032020 39k C205 5260165252 Elec 47uF R206 5240033020 007 C206 5260162550 Elec 10uF 16V f M 3I2 M 3201 LEVEL PAN RTN 920 9202 0203 i 1 POST i j i i T 0 I 1 PARTS DESCRIPTION 5 DESCRIPTION SWITCHES 5300039200 Push sw 2 2N 5300037800 Push sw 2 2N 5300037800 Push sw 2 2N M 312 M 320 5300039300 Push sw 4 2N 5300037800 Push sw 2 2N 5300037800 Push sw 2 24 M 312 M 320 5207 5208 5300039300 Push sw 4 2 MISCELLANEOUS C207 5173449000 Ceramic 22pF C208 5260163452 Elec 22uF C209 5260162550 Elec 10 C210 5173457000 Ceramic 100pF C211 5173453000 Ceramic 47pF C212 C213 5260166052 Elec 100uF C214 C215 5280162550 Elec 10 C216 C217 5260165252 Elec 47 pF C218 C223 5173433000 Ceramic 0 01 VARIABLE RESISTORS 5181771000 Jumper wire 30 mm R223 R224 5282013800 5kQ 5181761000 Jumper wire 5 mm R225 R226 5282409700 20kQ A C with c click R235 R236 5282013100 50 0 M 313 M 320 CONNECTORS J201 5336164400 J202 5336164300 F J203 5336164600 F P204 5336126200 26 M J205 J207 5122373000 3 7 BUSS JACK PCB Ass y PGM 0UT TAPE iN PGM OUT INSERT OUTPUT STEREO OUT L
36. RIAA PCB Ass y M 308 Japan Model PHONO IN PHONO OUT B A _R963 R RIAA PCB Ass y M 308 Japan Model Only REF NO PARTSNO OESCRIPTION PARTS NO OESCRIPTION 5200163600 CAPACITORS 5210163600 PCB C951 C952 5260165252 Elec 47uF 25V IC s C953 C956 5260162550 Elec 10uF 16V 957 960 5172210000 Ceramic 68pF 1951 0952 5220416600 4 2041 C961 C964 5171858000 Poly 0 012 uF 9 N C965 C968 5170364000 Poly 0 0033 uF CARBON RESISTORS 9 6969 972 5173054800 Elec 220uF 6 3V All resistors are rated 5 tolerance and C973 C976 5260162650 Elec 10 0 of carbon type unless otherwise noted MISCELLANEOUS R951 R952 5183562000 220 1 4 Nonflammable R953 R956 5240034620 470 8957 R960 5240025820 1000 R961 R964 5240026420 1800 R965 1968 5240032220 6 47 4951 J952 5330507200 Pin jack 4P R969 R972 5240034020 270k2 R973 R976 5240031420 22k R977 R960 5240033020 100 R981 R984 5240025820 1000 4 SCHEMATIC DIAGRAMS 4 1 WIRING DIAGRAM M 308 NOI123 ssne EE emas H i INP JACK ASS Y mesa 4 1 11 10 ASSY 823 N 805 ch n ES x BAL AMP R 7 7 fs eni poH sa us 8 Hz i 15 Yu gt 7
37. SOLO OUTPUT CE SOLO Sig To EXT SOLO 27 TALKBACK MIC Connector This female XLR type connector allows a dedicated talkback mic such as the TASCAM model MC 701G to be added to the M 312 and M 320 mixers TALKBACK LEVEL Control This rotary volume control determines the signal level sent from the TB mic to the selected busses TALKBACK SELECT Switches These six 6 switches provide bussing of the Talkback signal to the following internal cir cuits PGM Busses 1 4 STE REO Left and Right busses AUX 1 AUX 2 AUX 3 and AUX 4 Any combination of switches be selected simultaneously TALKBACK MASTER Switch This large protected momentary switch con nects the output or the Talkback section to the select switches Pressing this switch also sends an electronic control signal to the Solo Control circuit which mutes the normal signal and replaces it with the Talkback signal This elimi nates any possibility of feedback loops through the Monitor system METER Select Switch The last two meters L and R display levels of the signals selected on the METER select switch rack The meter L displays the signal level at the STEREO OUT L EXT IN 1 L EXT IN 2 L EFFECT OUTPUT AUX 1 OUTPUT or AUX 3 OUTPUT when the respective METER select switches are pressed The meter R displays the signal level at the STEREO OUT R EXT IN 1 R EXT IN 2 R MONO OUT AUX 2 OUTPUT or AUX 4 OUTPUT depending on the METE
38. This XLR type connector is designed to pro vide an electronically balanced output derived pet fader from programs 1 4 Below each XLR is a two position slide switch which allows the signal to be selected as either balanced or un balanced as required When in the balanced position the output level is 4 dBm with pin 3 high and pin 2 low and pin 1 shield In the unbalanced position the output remains at 4 dBm however the pinout changes as follows Pin 3 hot 2 and pin 1 shield OUTputs RCA These RCA type jacks provide the same signal as found at the XLR connector except it is always unbalanced and the nominal level is 10 dBV The OUT RCA and XKRs con nected in parallel and can be used simultaneous ly 21 METER SELECT AND TAPE RETURN MONITOR SECTION 6 VU Meters Each of the first four meters display either the level of the PGM busses or that of the TAPE RETURNS The metering source is determined by the METER Select Switches see 29 The two meters on the right L and R allow monitoring the level of the signals selected on the METER Select Switch Rack 60 All these six meters respond to the average signal level using standard volume unit ballistics and do NOT show peak levels Peak LEDs The light emitting diode provided for each meter will react much more quickly than the meters and is set to flash 1048 above O VU They are telling you the truth about the REA
39. except it cannot be switched to receive signals from various points The EFFECT signal is always derived post F ADER and ON Channel Assign Switches The five push button switches allow the se lection of each of the four PROGRAM busses independently plus the STEREO MASTER busses Any combination of busses can be selected simultaneously The switches receive their signal after the channel PAN control with the PROGRAM 1 amp 3 and the STEREO LEFT busses receiving the output from the PAN LEFT while PROGRAMS 2 amp 4 and STEREO RIGHT receiving the output of PAN RIGHT PAN Control As described above the PAN short for pano rama control acts as a left to right balance device for placing the channels signal in the stereo spectrum Placing the PAN control in the center or 12 o clock position sends the signal to both the left and right busses equally Channel ON Switch This switch determines the status of the chan 5 signal Pressing the switch allows the signal to flow to the PAN control and also to the EFFECTs and AUX post fader send point When the channel is ON the LED next to the switch will be lighted giving a positive visual indication of the specific channel 5 status PFL Pre Fader Listen Switch This is a locking switch which when pressed provides access to the channel signal ahead of or pre the fader This allows the signal to be accessed even if the fader is closed or if the
40. passa 3 cou 6 00 16 3 2 0000 16 5201 coir 091 22007 16V Be WP PIE Be 200716 v 549 mi _ PHONES Ll H 520 4 14 D 3 4 7 e pe one K 3 na M Masa 17 9 93 04 SUPPLY PCB ASS Y 4 19 RIAA PCB M 308 JAPAN MODEL ONLY 1 2 i 3 095 U952 A 7 7 7 R969 270k 221 6 R961 C969 50 180 220 63 C973 R9 I 10 25 700 095 2 2 8965 8977 7k 100k R957 955 100 0 R953 C957 4 J951 470k 680 PHONO IN i n B 962 8962 C970 0 012 180 220 63 C966 0 0033 9 R982 10 250 100 R958 100 0 R954 C958 68 8971 R975 270k 22k 095 1 21 R966 6963 80 975 10 25 R983 100 R959 955 100 IO l6V R955 C959 68 6972 6 270 22 R964 C972 180 220 6 3 976 R984 100 R960 C956 100 10 6 L QR C Bee ee 195 47 p PHONO GUT gt D R R951 A 22 PIN 8 0951 AND 0952 15 C951 Page 4 1 47 25 D 3 p U951 0952 TO PIN 4 OF USS AND U952 R952 NJM204ID t
41. which in turn can mix the signal into the final STEREO mix Some thought and caution must be used when applying this approach as the MONITORS are also used to mix the PGM GROUP signals to the STEREO masters When using the PGM GROUPS in a mix and using the TAPE RETURNS for adding signals always make sure each PGM GROUP has at least one MONITOR section assignable to the PGM This means that if all four PGM GROUPS are in use during the mix only four external signals can be added through the remaining unused MONIT OR sections These extra systems add flexibility to the 300 Series Each model therefore becomes more than 8 12 or 20 input 4 buss stereo and mono output mixer For example the smallest version the M 308 can mix up to 8 MIC and 8 LINE signals simultaneously and if these signals are sent directly to the STEREO MAS TERS 8 additional line level signals can be added through the TAPE IN jacks By merely patching the AUX 1 amp 2 outputs back into the EFFECT RTN jacks 24 different signals could be easily mixed and controlled creating a final stereo and or mono output signal The models M 312 and M 320 with their additional input channels and AUX sends can easily mix more than twice their number of channel signals See chart on Page 11 Setting Auxiliary and Effects Send Levels When using the additional subsystems found on the 300 Series mixers setting the signal levels is equally important as the channels levels
42. 10 0 3 V 20 dBV 0 1 V Shelving High Swespable Middie Low 10 kHz High 200 4 kHz Middie 50 1 kHz Low 1248 High 115 dB Middle Low Set to light at 25 48 above nominal 100 ohms 2 k ohms 10 k ohms 10 dBV 0 3 V 18 dBV 8 V 5 k ohms 10 0 3 V 11 dBV 3 5 V DirectOutput Output Impedance 100 ohms Minimum Load Impedance 2 ohms Nominal Load Impedance 10 ohms Nominal Output Level 10 dBV 0 3 V Maximum Output Level 18 d8V 8 V Bus Sub Input PGM STEREO EFFECT AUX Input Impedance 22 k ohms Nominal Input Level 10 dBV 0 3 V Maximum Input Level 18dBV 8 V PGM Insertion Output Impedance 100 ohms Minimum Load Impedance 2 k ohms Nominal Load Impedance 10 k ohms Nominal Output Level 10 0 3 V Maximum Output Level 1BdBV 8 V Input Impedance 9 k ohms Nominal Input Level 10 dBV 0 3 V Maximum Input Level 11 dBV 3 5 V PGM Output XLR Type Output Impedance 20 ohms Minimum Load Impedance 200 ohms Nominal Load impedance 600 ohms Nominal Output Level 4 dBm 1 25V Maximum Output Level 25 dBm 14 V Balanced 20dBm 8 V Unbalanced RCA Output Impedance 100 ohms Minimum Load Impedance 2 ohms Nominal Load Impedance 10 k ohms Nominal Output Level 10 dBV 03 V Maximum Output Level 18 dBV 8V AUX Output 14 Output Impedance 20 ohms Minimum Load Impedance 2 k ohms Nominal Load Impedance 10 k ohms Nominal Output Level 0 dBu 0 78 V Maximum Output Level
43. 2 15 5800611400 Knob Ass y 8 Red 2 16 5800607000 Escutcheon 2 17 5800677200 Knob Fader L 2 18 5800677400 Knob Fader K X Y 2 19 5800668100 Pad Ass y C M 320 5800668000 Pad Ass y B M 312 2 20 5800664701 Angle Front C M 320 5800664601 Angle Front B M 312 2 21 5800665901 Panel Front C M 320 5800665801 Panel Front B M 312 2 22 5800662601 Holder Bottom Cover Bracket 2 23 5800664401 Bracket Bottom Cover C M 320 5800664301 Bracket Bottom Cover B M 312 2 24 5800668900 Cover Bottom 2 25 5800669301 Cover Bottom C M 320 5800669201 Cover Bottom B M 312 2 26 5800669500 Cover Bottom E M 320 5800669400 Cover Bottom D M 312 2 27 5800669001 Cover Bottom R 2 28 5504676000 Foot 19L 2 29 5800865200 Board Side R 2 31 5781073010 Screw Tapping x 10 BLK 2 32 5781023008 Screw Pan Tapping 3 x 8 2 33 5780964008 Screw Tras Tapping 4 x 8 BLK 2 34 5781503008 Screw Pan washer Tapping 3 x 8 BLK 2 35 5781024008 Screw Pan Tapping 4 x 8 2 36 5781074008 Screw Pan Tapping 4 x 8 BLK 2 37 5781023008 Screw Pan Tapping 3x 8 2 38 5781503008 Screw Pan washer Tapping 3x 8 BLK 2 39 5781504008 Screw Pan washer Tapping 4 x 8 BLK 2 40 5781024020 Screw Pan Tapping 4 x 20 2 41 5780963006 Screw Tras Tapping 3 x 6 EXPLODED VIEW 3 TOP PANEL 2 3 Exploded View 3 Parts marked with require longer delivery time
44. 20 dBu 8 V RCA Output Impedance 490 ohms Minimum Load Impedance 2 ohms Nominal Load Impedance 10 k ohms Nominal Output Level 10 dBV 0 3 V Maximum Output Level 10 dBV 3 1 V Effect Output 1 4 Output Impedance 20ohms Minimum Load Impedance 2k ohms Nominal Load Impedance 10k ohms Nominal Output Level OdBu 0 78 V Maximum Output Level 20 dBu 8 V RCA Output Impedance 490 ohms Minimum Load Impedance 2 k ohms 51 Nominal Load Impedanee Nominal Output Level Maximum Output Level Effect Return Input Input Impedance Nominal Input Level Minimum Input Level Tape Return Input Input Impedance Nominal Input Level Minimum Input Level Stereo Insertion Output Impedance Minimum Load Impedance Nomina Load Impedance Nominal Output Level Maximum Output Level Input Impedance Nominal Input Level Maximum Input Level Mono Insertion Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Input Impedance Nominal Input Level Maximum Input Level External Input Input Impedance Nominal Input Level Maximum Input Level Stereo Output XLR Type Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level RCA Output Impedance Minimum Load Impedanca Nominal Load Impedance Nominal Output Level Maximum Output Level Mono Output XLR Type Output Impedance Minimum Load Impedance Nominal Load impedance Nomina Output Level
45. 20kHz EQ OUT 50 dB above nominal input level and MIC 3098 on with 30kHz L P F connected 1 Line Input to 1 PGMOutput 0 02 20 Hz 20kHz EQ OUT nominal input level with 30kH2 L P F connected Intermodulstion Distortion SMPTE Method 1 Mic Input to 1 PGM Output 0 06 EO OUT 50 dB above nominal input level and MIC ATT 30d8 on 1 Line Input to 1 PGMOutput 0 045 EO OUT nominal input level Frequancy Response Mic Input to Output 20 30kHz d Line Input to Any Output 20 30 2 198 Cross Talk At 1 kHz Better than 70 dB At 18kHz Better than 60 dB In these specifications 0 dBV is referenced to 1 0 Volt OdBu and dBm are referenced to 0 775 Volt Actual voltage levels are also given in parenthesis 0 316 Volt for 10 dBV is rounded of and given as 0 3 Volt and 0 775 Volt for 0 dBu as 0 78 Changes in specifications and features may be made without notice or obligation M 320 SPECIFICATIONS MECHANICAL CHARACTERISTICS Input Selector Fader Length Assign AUX Select Monitor Select Matrix Mater Select Switch Dimensions W x H x 0 Weight net MIC LINE 100 mm Odd 1 3 L Even 2 4 R AUX 1 Pre Equalizer Line AUX 2 AUX 1 Post Fader AUX 3 4 PGM Buss TAPE RTN Pre Fader Post Fader switchable Stereo Ext 1 Ext 2 Mono Effect Aux 1 2 Aux 3 4 1 4 PGM 1 4 TAPE RTN 1 4 5 8 L Stereo Ext 1 Ext 2 Mono Effect Aux 1 2 Aux 3 4 switc
46. 3 9 BAL AMP R PCB Ass y OUTPUT EFF SOLO MON L R 1 5 UN 9 BAL OUT R BUSS JACK PCB Ass y J206 J207 P208 S209 PARTSNO DESCRIPTION 5200155900 5210155900 5330011400 5330509500 5334041500 5300911400 5781012605 Ass v PCB 1 4 Jack TRS pin jack 4 XLB M Slide sw 2 2N Screw Pan head Tapping M2 6 x 5 BAL AMP L Ass y REF NO PARTS NO DESCRIPTION BAL AMP R PCB Ass y 9701 R701 5240034620 470k2 R702 5240032220 47k R703 5240029920 5 lk R704 5240029120 2 4k R705 5240030220 6 BkQ R706 R707 5240030620 10612 R708 R709 5240033020 100 R710 R711 5240023400 100 R712 8713 45183562000 221 1 44 Nonflammable CAPACITORS C701 C702 5260165252 Elec 47u4F 25V C703 5260162550 Elec 10 16 C704 5173457000 Ceramic 100pF C705 5173453000 Ceramic 47pF C706 C707 5260166100 Elec 100 25V MISCELLANEOUS P701 5336128300 Connector 3P M P702 5334041500 XLB M J703 5330509500 RCA jack 4P S701 5300911400 Slide sw 2 2N 5781012605 Screw Pan heed Tapping M2 6 x 5 5200156600 5220419600 5210156600 PCB NJM5532D CARBON RESISTORS All resistors are rated 5 tolerance 1 6W and of carbon type unless otherwise noted REF NO PARTS NO 5200156700 5210156700 IC 5220419600 DESCRIPTION PCB Ass y PCB NJM5532D CARBON RESIS
47. 320 models there is an additional control not found on the 33 M 308 This is an AUX send control similar to those found on the input channels On MONITOR sections 1 4 this control is identifi ed as AUX 3 while those found on MONITORS 5 8 are labeled AUX 4 Each PGM GROUP has one of each MONITOR set in its domain PGM 1 carries 1 amp 5 PGM 2 has 2 amp 6 PGM 3 has 3 amp 7 and PGM 4 has 4 amp 8 Each MONITOR sec tion can be independently assigned to receive its input from one of two sources the corre sponding TAPE IN jack or the PGM buss in which it physically resides The MONITOR LEVEL and PAN controls determine the overall strength and distribution of the signal to the STEREO MASTER busses The ON switch provides the means to mute the MONITOR thus signal can be isolated from the final mix if desired Since each PGM GROUP has two MONITOR sections each buss can be mixed by one while the other can be used as an addi tional LINE input or EFFECTS RETURN As we will show further on in this manual the double MONITOR mix system while redundant for some applications considerable expands the flexibility of the 300 Series for sound reinforce ment Adding More Input Signals In our example we are adding the synthesized rhythm signal to the PGM 3 buss SUB IN jack As we ve just seen we could also add this signal through any of the 8 MONITOR sections by simply connecting the signal to one of the TAPE INs When us
48. 4 PEB ASE Y y Gece ern ba Onus 4 4 4 5 Buss Amplifier PCB Ass y 308 4 5 4 6 Buss Amplifier PCB Ass y M 312 M 320 4 6 4 7 Auxiliary PCB Ass y M 308 4 7 4 8 Auxiliary PCB Ass y M 312 M 320 4 8 4 9 Balanced Amplifier L 55 4 9 4 10 Balanced Amplifier 4 10 4 11 Mono Amplifier Ass y M 308 4 11 4 12 Mono Amplifier PCB Ass y M 312 M 320 4 12 4 13 Monitor PCB Ass y M 30B 4 13 4 14 Monitor Ass y 312 320 4 14 4 15 Meter PCB Ass y t aa 4 15 4 16 Talkback Ass y 312 320 4 16 4 17 Power Supply Section 4 17 4 1B Power Supply Section M 312 M 320 4 1B 4 19 RIAA PCB 308 Japan Model Only 4 19 4 20 IC Internal Block Diagrams 4 20 4 21 Block Diagram M 30B 4 21 4 22 Block Diagram 312 320
49. 4 Output Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level 22 k ohms 10 dBV 0 3 V 18 8 V 100 ohms 2 k ohms 10 k ohms 10 08 0 3 V 18dBV 8 V 9 k ohms 10 dBV 033 V 11 dBV 35 V 20 ohms 200 ohms 600 ohms 4 dBm 1 25 V 25 dBm 14 V Balanced 20dBm 8V Unbalanced 100 ohms 2 k ohms 10k ohms 10 dBV 03 V 18 dBV 8 V 20ohms 2 k ohms 10k ohms OdBu 0 78 V 20dBu 8V 490 ohms 2k ohms 10 k ohms 10dBV 0 3 1008 3 1 V 20 ohms 2 k ohms 10k ohms 0dBu 0 78 V 20dBu 8 V Output Impedance Minimum Load impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Effect Return Input Input Impedance Nominal Input Level Minimum Input Level Tape Return Input Input Impedance Nominal Input Level Minimum Input Level Stereo Insertion Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Input Impedance Nominal Input Level Maximum Input Level Mono Insertion Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Input Impedance Nominal Input Level Maximum Input Level External Input Input Impedance Nominal Input Level Maximum Input Level Stereo Output XLR Type Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Meximum Output Leve
50. 4 37 5780022618 Screw Bind M2 6 x 1B BLK 4 38 5781024006 Screw Pan Tapping 4 x 8 US U S A GE GENERAL EXPORT AUSTRALIA E EUROPE UK U K LIMITED AREA Jj JAPAN 3 ELECTRONICS PCB S AND ELECTRONIC COMPONENTS INPUT PCB Ass y REF NO PARTSNO DESCRIPTION DE 5200155500 PCB Ass y 5210155500 PCB IC s 0101 0103 5220419600 NJM5532D TRANSISTORS 101 0102 5145119000 2SC1844 F 0103 5230779520 25 1815 GR Q104 5145150000 2SA1015 GR DIODES 0101 0102 5224015000 155133777 D105 D106 5224015000 1SS133T77 D107 D108 5225005400 LED 5 1358 RED D109 5225006400 LED SLP 235B CARBON RESISTORS resistors are rated 5 tolerance 1 6W and of carbon type unless otherwise noted R101 R102 A5183562000 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R114 R116 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R130 R131 R133 R134 R135 R136 R138 R139 R140 R141 R142 R143 R144 R145 R146 R147 R148 R149 R150 R151 R152 R183 R154 R156 R164 R168 5240028220 5240025420 5240029120 5240023420 5240030620 5240028620 5240023820 5240029820 5240030620 5240033020 5240028820 5240029620 5240033020 5240031420 5240029620 5240030620 5240030420 5240030620 5240030220 5240033020 5240025820 5240033020 5240030520 5240030620 5240027220 5240031420 5240027220 5240033020 5240028820
51. 45 dB approx aee cM i 5 LENE IN d M a 2 MM s umm INPUT PCB ASS Y 312 CHANNEL 1412 M 320 CHANNEL 120 ON 8 MASTER PCE TAPE W tam eo CRANE TAPE IN Ne 5 INPUT ASS Y IM 3I2 CHANNEL L f 320 CHANNEL 1 20 Oo 1 LOW I i t papa oon rt l ONLY CHORE w gt E E 3 i Fi i i i i E 84 2 uit ha x 118 dH db dd 5 J ROB MET EE lt 655 2 MA 1 IFI ssAa ss E gt il U LINSER NE CE CES CSE pe 7 j 4 DO Par t oy ASR z t 7 Mic Pad 30 dB With TRIM MIC set as in paragraph 1 4 6 press the mic pad switch labeled 30 dB Increase the input level by 3098 to compensate the inserted 30 dB pad Confirm that the output level at D OUT is 10 dBV 2 dB After check ing reset the input level to nominal 60 dB V and the mic pad switc
52. AUX 4 are available on the M 312 amp M 320 MONITOR Level Control This dual control adjusts the level of the signal selec ted by the MONitor Select Switch MONIitor OUTPUTs These 1 4 Phone and jacks provide stereo output signals from the MONitor SELECT SWITCH RACK PHONES Level Control This determines the final signal level available to the headphone amplifier The signal is derived before the MONITOR LEVEL control but is otherwise the same Headphone Output Jack This is located on the front of the mixer below the arm rest This circuit is designed to be used with 8 ohm stereophones CAUTION MONO 2 WIRE HEADPHONES WILL CAUSE CIRCUIT FAILURE your headphones have this connector don t use them 1 4 phone 2 connector 1 4 phone 3 connector Your headphone connector must have 3 sections to be safe While accidents do happen and pro tection circuits have been built in use of mono 2 wire headphones will eventually cause circuit failure 2 to 3 minutes Using the 2 wire con nector shorts out one of the amplifiers driving the headphones which will cause it to burn out EXTernal INputs These RCA phono jacks are provided on the rear panel so that any stereo input such as an addi tional submix a half track master recorder or cassette machine can be connected and can be switched in and out of monitor system using the EXT 1 and 2 MONitor Select Swit
53. E O 43 HOW TO USE THE EQUALIZER EQ SECTION ON THE 300 MIXER Equalization can be used to alter the tonality of a signal Unfortunately the same ability to favorably change one signal may result in an unfavorable alteration in another When using EQ care must always be taken to not over do it While we can describe the mechanics of the EQ section found on the 300 Series we cannot offer specific control settings for achiev ing the best results Our idea of what sounds best may not be the same as yours so once again we will only describe the science or objective portion The subjective portion of the art of applying this knowledge properly must remain the responsibility of the person per forming the mix The EQ section found in the 300 Series is a three band semi parametric or sweep type de sign with a shelving type high frequency portion Both the low frequency and midrange portions have two controls each One control determines the center frequency of the affected band while the second control determines the amount of boost or cut applied to the band The frequency ranges are as follows low frequency 50 Hz 1 kHz midrange 200 Hz 3kHz Both offer 15 dB boost or cut The high frequency circuit is fixed at 10 kHz with 12 dB of boost or cut When mixing an input signal the first decision regarding equalization is wether any EQ is need ed If not you can bypass the unused electronics by releasing th
54. FRE QUENCY control through its entire range As the control is turned you will hear the change in the signal s content When the desired fre quency is isolated set the GAIN control to the necessary amount of boost or cut required for the desired change Whenever possible avoid making these changes during an actual performance or recording The sweeping action can create an undesired effect The illustration shows how different instruments will be affected by changes in EQ settings and indicates how some instruments will be un affected by changes in one EQ band Cymbals and flutes for instance would not be altered much by changes in the low frequency section especially if the FREQUENCY control was set below the 12 o clock position This is because these instruments have very little signal content in this range On the other hand the sweep capability allows you to boost or cut specific parts of signals or instruments without altering the sound of other signals On drums for instance the kick or bass drum can be brought out by carefully turning the low frequency section of the EQ thus allowing the one drum to sound more prominent than the rest The same technique can be used on vocals or any multiple mix of signals as long as the various components operate normally in slightly dif ferent frequency ranges As with all other aspects of mixing audio ex perience will help you learn the capabilities and limits of the EQUALIZER
55. Maximum Output Levet 18 dBV 8 V Input Impedance 9k ohms Nominal Input Level 10 dBV 0 3 V Maximum Input Level 11 dBV 3 5 V PGM Output XLR Type Output Impedance 20 ohms Minimum Load Impedance 200 ohms Nominal Load Impedance 000 ohms Nominal Output Level dBm 1 25 V Maximum Output Level 26 dBm 14 V Belanced 20 dBm Unbalanced RCA Output Impedance 100 ohms Minimum Load Impedance 2k ohms Nominal Load Impedance 10 k ohms Nominal Output Level 10 dBV 0 3 V Maximum Output Levet 18 8 BV AUX Output 1 4 Output Impedance 20 ohms Minimum Load Impedance 2 ohms Nominal Load Impedance 10 ohms Nominal Output Level 0 dBu 0 78 V Maximum Output Level 20 dBu 8 V RCA Output Impedance 4900hms Minimum Load Impedance 2 ohm Nominel Load Impedance 10 ohms Nominal Output Level 10 dBV 03 V Maximum Output Level 10 dBV 3 1 V Effect Output 1 4 Output Impedance 20ohms Minimum Load Impedance 2k ohms Nomina Load Impedance 10 ohms Nominal Output Level 0 dBu 0 78 V Maximum Output Level 20dBu 8 V 57 RCA Output Impedance Minimum Losd Impedance Nomina Load Impedance Nomina Output Level Maximum Output Level Effect Retum Input Input Impedance Nominal Input Level Minimum Input Level Tape Return Input Input Impedance Nominal Input Level Minimum Input Level Stereo Insertion Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Input impe
56. Mixers were designe for maximum flexibility without compromisin performance in any way They are equipped with a very flexible combina tion of features and functions so they can be suc cessfully used in an extremely broad range applications from small studio recording t mixing for live sound reinforcement to audit broadcast production and video sweetening A mixers value and usefullness can be determine by its flexibility The more flexible a mixer tht greater its value to you This flexibility however may make the mixer difficult to understand a first With study and experience you will the 300 Series readily understandable eas to use and very flexible To understand the full capabilities of the Series Mixers it is important to realize the Series are mixer systems comprised of multipk submix systems These submix systems art designed to perform specific functions whic allow the 300 Series to adapt to many differen applications These subsystems are The MAIN MIX the AUX 1 SUBMIX the AUX 2 SUBMIX the EFFECT SUBMIX the EFFECTS RETURN SUBMIX and the MONITOR SUBMIX On thi models 312 320 the MONITOR SUBMI contains two 2 additional submix systems AUX 3 and AUX 4 Each of these subsystems performs the sam basic function it takes signals in through it input processes them and sends them ou through its outputs The processes performe involve gain contro and routing in simple terms
57. NF 1 E 4 20 IC Internal Block Diagrams NJM4558 NJM78M0SA NJM5532D NJM78M15A NJM2041DD NJM79M00 NJM4560DX NJM072DE 8 __ 7 66 SW D SW Voo CONTA CONTO LN SW SW 4 20 BLOCK DIAGRAM 308 2 t 3 1 1 is yz ES VN 1 UNIT 648 dB 0775W Odam gt OTTS OPERATIONAL LEVEL IN OUT JACK PUSH SWITCH a 3 3 EQUIVALENT Q But e ELECTRIC SWITCH t wit Ont RIAA FOR ASSY L JAPAN MOGEL OR Y INPUT PCB ASS Y CHANNEL 8 Lue w CCAPA KU CH TAPE In Ba gt Im gt MON INVERTING gt BALANCED ROTARY LINEAR ta iem 1 1 I 123 L i 1 i I w METER ASS Y i Dal Dal 1 I 4 UZIL I e _ T 222222 80 MASTER PCB ass y a us 4 am m um e 7 A p rere ene tr
58. PHONO oUF 1 0 00V l i JAPAN MODEL ONLY kap 8v LOW MIC ATT 10 i 20 d t 20 1 I 1 30 40 I 50 1 t 60 MIC t r 60 LIN 1 3 Rad INPUT FADER EFFECT AUX OPERATIONAL LEVEL OdBVe 1 0080 0 775 0775 HH 35 di EET I MASTER _ ins m 090 771 E i rr FROM STEREO R CHANNEL 4 EFFECT AUX BUSS 1 0 49v 410 on 97m PGM SYEREO MONO MASTER MASTER STEREO puss paavi FROM rs OR IN tm 40 60 LEVEL 4 23 50 60 70 HHL EEE as 4 1 6 EFFECT RTN 4 SUB IN EXT SOLO I TO BUSS FROM BU EFFECT 240 OTHER 7722771 457 84 FROM STEREO MONO EXT 1 2 EFFBCT AUX TO MON 710 Sl se 7 T 2 A 1T 7 mal oe i gt M i 1 11 7 898 69 2
59. SWEETENING 40 CALIBRATING THE 300 SERIES MIXERS FOR RECORDING 4 HOW TO USE EQUALIZER SECTION ON THE 300 MIXER 44 Pre amp Post EQ When Using a Limiter 46 A WORD OF MIXING ADVICE 46 ACCESSORIES FOR THE 300 SERIES MIXERS MC 701G Gooseneck Microphone 47 PW 2Y PW AY Insertion Cable 47 MH 40B Headphone Amplifier 47 2 23 Fader Link Knobs 47 PB 64 Patch Bay 48 TASCAM PB 32 Series Patch 48 TASCAM Cables 50 M 308 SPECIFICATIONS 51 M 312 SPECIFICATIONS 53 M 320 SPECIFICATIONS 55 VOLTAGE CONVERSION 60 NOTE FOR U K CUSTOMERS 61 M 308 BLOCK DIAGRAM 63 M 312 M 320 BLOCK DIAGRAM 65 M 308 LEVEL DIAGRAMS 67 M 312 M 320 LEVEL DIAGRAMS n MAINTENANCE 1 LEVEL SETTING AND OPERATION CHECK 1 1 MASTER FADERS AND POTS 1 1 1 2 VU 5 1 1 1 3 LEDS 1 1 1 4 CHANNEL FADERS AND 1 Channel Faders INSERT gt D OUT 1 4 2 TRIM LINE Pot LINE IN gt D OUT 1 4 3 EQualizer LINE IN gt D OUT 1 4 4 AUX 1 and AUX 2 Level POT LINE IN gt AUX 1 AUX 2 QUTPUTS 1 4 5 EFFECT Send Control LINE IN EFFECT OUTPUT 1 4 6 TRIM MIC Pot
60. System Electric Guitar 32 capacitors to discharge then continue to turn off the remaining equipment Turn the mixer off last When the system is operational begin making the initial control settings We suggest starting with all the EQ controls set at 12 o clock and the AUX send controls off fully counter clockwise Set the channel input select switches LINE to the appropriate position MIC up or LINE down Assign the channels to the desired groups using the assignment switches and PAN controls Remember even if a channel is assign ed to only one PGM group the PAN control will still affect the signal Thus the PAN should be turned all the way to the left or right if only one group 15 selected Begin setting the input gain levels starting with the first channel by turning the MIC or LINE TRIM control to the 12 o clock position the channel is assigned to a group raise the corresponding PGM FADER to the 7 B position If the channel is assigned to the LEFT and RIGHT STEREO MASTERS raise those FADERS to the 7 B position These settings approximate the unity gain position of the PGM and STEREO MASTER section amplifiers and allow relatively accurate VU meter readings Remember this procedure is the initial gain setting step In the actual rehearsal prior to the performance minor adjustments are usually made to fine tune the various control settings If the channel is processing a MI
61. The procedure is very similar however different controls come into use our example we need to use AUX 1 for an on stage monitor feed Since most stage monitor signals are derived pre fader AUX 1 will provide this signal when both AUX select switches are in the up position Begin by setting the channel AUX 1 control of each desired channel to the 12 position Next press the AUX 1 2 switch in the SELECT SWITCH RACK With signal present in a channel raise the AUX 1 MASTER control until the Left VU meter reads about the same as the PGM meter Set each selected channel AUX 1 control for about the same level Once all the desired channels are set adjust the overall mix This can be done using the HEADPHONE MONITOR section selecting AUX 1 and listening through a pair of headphones while making the necessary changes to the various AUX 1 controls When setting stage monitor levels several pre cautions should be taken If feedback howling occurs reduce the AUX 1 MASTER control and reposition either the monitor speakers or the mics These actions should allow the level to be raised to the desired point Often several various combinations of speaker and mic posi tions must be tried before the most useable combination is found Keep in mind that moni tor output levels generally do not need as high as the program level The object of on stage monitoring is to allow the performers to im prove their indivi
62. U72 55320 IR MON R OUT 55 L MON OUT D MON L OUT 308 Page 4 1 A 8 OUTPUT SOLO OUT M 308 Page 4 I A 8 557 M 320 Page 4 3 5 8 SOLO OUT BAL AMP R 411 MONO AMPLIFIER PCB ASS Y 308 1 1 2 3 4 0742 U742 R747 68k R749 C744 100 R748 6 z R752 BAL UNBAL Bat IN 4 5 BAL 574 Q iens 7 4 206 U741272 H I R744 R750 47 100k 4 R745 5 i 751 1 54 BAL 100k I 3 UN 0 is Q 77 2 10 25V R 1 10 _ _ LMONO OUT 4 1 4 9 R756 6 8k C746 10 16 2758 ei 4 U742 2 2 421 755 RTS 4 7 0741 55320 0742 204060 ASSY Page 4 7 8 3 4 12 MONO AMPLIFIER ASS Y M 312 M 320 1 2 3 074 0742 0742 H 9747 6 8k R749 10 44 100p C746 R752 BAL UNBAL 0 5 10 BALIN 4 8 4 B U74lt2 2 R750 100k 1 C747 753 25 10 M 312 l US FT SS m Page 4 2 ta 8 9 M 320 Page 4 3 14 89 C750 R758 47 25 22 C H U742 2 2 V4 OUT 3 D 074 NJM55320 U742 NJM204IDD 1 LOUTPUT J743 MONO AMP PCB ASS Y 4 13 MONITOR ASS Y M 308 1 2
63. a BLOCK DIAGRAM is the same thing as the second illustration except it offers a little more detail and uses different symbols Using the numbers on these illustrations you can see how a control on the first drawing relates to a function on the second drawing and a symbol on the third Studying these relationships will help you learn to read the BLOCK DIAGRAM This is valu able skill which will aid you in getting the most performance from your 300 Series Mixer Ex perienced engineers can operate a sophisticated mixing console b v using only the block diagram 10 SYSTEMS INTRODUCTION This manual presumes nothing about your past experience with the multi channel process except a willingness to learn An expert in the field might see the significance of a control or jack with just a simple statement of its location but in this manual we will point out the obvious There are numerous basic signal input connectors on the M 308 M 312 and M 320 mixers as shown on this chart QUANTITY Connector Function M 308 M 312 M 320 MIC XLR INPUT 12 20 LINE 1 4 INPUT 8 12 20 MULTI PURPOSE RETURN INPUTS 8 8 8 EFFECT RETURN INPUTS 2 2 2 MULTI PURPOSE E F Each specific feature and function is explained in the FEATURES AND FUNCTIONS section Whenever possible an explanation of when a specific control would be used will be given Main Mix System The
64. amp 4 receive their signals afte or post the TAPE RTN Switch see the previous description the setting of this switch determines the signal processed b y the AUX SENDS AUX 3 amp 4POST Switch M 312 amp 0 ONL Y This switch allows the AUX SENDS to receive signal either before pre or after post the respective MONITOR LEVEL control see below Monitor LEVEL Control Once the signal source has been determined and selected by the TAPE RTN switch the overall volume is set by the MONITOR LEVEL cont rol This level is then sent to the AUX POST circuit and the MONITOR PAN control Monitor PAN Control As with the channel PAN controls the MONI TOR PAN determines the left to right placement of the signal in the MONITOR system The PAN sends the signal to the STEREO LEFT and RIGHT BUSSES Monitor ON Switch and LED Indicator This switch allows the signal in the MONITOR system to pass to the STEREO BUSSES and on models M 312 and M 320 to the AUX POST circuit The LED indicator is lit when the switch is in the position down The switch does NOT affect the signal sent to the AUX PRE circuit 78 SSN L LI ee TS RULES CX N 424 5574 wes bg i t 1 i i 1 1 7 H 1 i i I t 3 t
65. an art as wel as a science A suc cessful recording is often judged primarily on the quality of sound as art and we obviously cannot guarantee that A company that makes paint and brushes for artists cannot say that the paintings made with their products will be well received critically The art is the province of the artist TASCAM can make no guarantee that the 300 Series Mixers by themselves will assure the quality of the recordings you make Your skill as a technician and your abilities as an artist will be significant factors in the results you achieve This unit has a serial number located the rear panel Please record the model number and serial number and retain them for your records f Mode Number Serial Number WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE TABLE OF CONTENTS FEATURES AND FUNCTIONS Input Channel Section 1 MIC INput Connector 14 2 LINE INput uz seen 14 3 RETURN INput Channels 180 14 4 LINE Switch 14 5 5 14 6 TRIM 22450200443 14 7 EQualizer cree ores 15 8 EQ ON Switch 1 9 10 AUXiliary 1 amp 2 Controls 15 11 12 AUXiliary LINE and POST Select Switches 16 13 INSERTion Jack 17 14 EFFECTSendControl 17 15 Channel Assign Switche
66. lt M 308 4 1 0 1 8 6 si neuss M312 4 2 0 Sou euss M 320 Page 4 3 0 1 INPUT PCB ASS Y 4 5 BUSS AMPLIFIER ASS Y M 308 1 2 3 A 0203 020 0202 ea C S wer 7 TS P O OF 20 0 3 28 C220 C222 ISU TO PIN 4 OF V20 i 0203 sa R203 22k R208 39k B 0201 2 2 m 6 1 C Page 4 1 0 5 NJM204I DO U202 NJM5532D U 03 NJM204IDD SLP2351B D2O2 SLP235 8 0203 51 135 8 U202 U202 U203 apna CINSERT 2 3 4 0212 6 6 R214 R210 to gt 5 6 7 8 c209 061 3207 R208 5 202 12 2 470 Y 1 2 3 4 4 j 213 00 25 5 6 7 8 MASTER OUT t 2 3 4 n 8 BAL UNBAL 1 2 3 4 9 BUSS JACK PCB ASS Y e tQ ev 9203 i72 R221 R29 4TOk 4 4 C 2 METER Page 4 1 C 5 ERTEN ME GEI TAPE LEVEL RYN EE 47 R224 5205 Q 9 Sh e c2is Q 10 16 203 2 21 7 R222 220 Qi 47k 470 4 6 BUSS AMPLIFIER 55 312 320 1 1 2 I 3 4 2 001 0203 0201 D202 R201 t n 920 gt TO PIN 8 OF 020 0203 312 kid Page 4 2 0 5 ov 320
67. specifically to address the needs of the audio professional whose demands may include live sound reinforce ment as well as recording Each model in the series is capable of handling equal numbers of MIC and LINE level inputs plus additional signals processed through the EFFects TAPE RETURNS and various buss SUB INputs In our first example we show a simple yet very common mixing situation using four 4 mics and four 4 line level signals As you can see by our system diagram the 308 is being used to mix a live performance of a musical group con sisting of an acoustic guitar an electric guitar a bass guitar and two different keyboard instru ments a stereo synthesizer and an electric piano Three of the performers have vocal microphones with one of them performing most of the lead vocals Additionally since the group does not have a drummer an electric rhythm unit is used In our example we show a model M 308 but a M 312 or M 320 could also be used in a similar manner Basic Connections The mics are connected to input channels 1 4 while the line level signals are added through channels 5 8 The rhythm unit is connected to the PGM 3 SUB IN jack although on the larger models of the 300 Series it could be mixed through another input channel We will detail other ways of mixing additional signals several places in this manual Since the 300 Series is a four buss design the signals can be sub mixed or grouped prior to the ste
68. the EXTernal 1 Stereo L INput jacks Any effects devices required can be patched through the various access points described on page 31 In addition to these patch points a fifth method is possible This technique is trickier but is handy if the returning signal is subject to level variations or requires equalization The input of the effects device can be driven from any appropriate access point or output The output of the device can then be connected to the LINE INput of any unused channel The returning signal can then be routed and controlled as if it were a normal input signal Caution must be exercised to prevent the returning signal from being mixed with the original outgoing signal or a feedback loop will be created This will cause a loud howling sound and could cause damage to your equipment Since the multitrack machine s outputs are connected to the TAPE INs the mixdown can be done entirely in the MONITOR and STEREO MASTER sections Simply calibrate the equip ment select the desired tape returns set the tape return level and pan controls set the final stereo levels rehearse or preview the mixdown and roll tape If you need to re equalize a track or use ex ternal effects no re patching is required For example let s say track 1 our basic rhythm track needs more low frequency power or punch Simply de select the TAPE RTN switch on MONITOR section 1 Make sure no connector is plugged into channel 15
69. the recorded tracks at relatively the same mix levels that occurred during the recording 9 LINE Selects the Channel s line input The LINE position is very useful as a way to return submixes or effects into the AUX system Each of these position can be used for various reasons and this ability to select the signal source can be extremely beneficial during complex situations INSERTion Jack This 1 4 Phone jack is actually two connectors in one The jack is a stereo break design and is wired a standard TIP RING SLEEVE configuration channel s signal or SEND is wired to the connectors TIP contact The INSERT or RECEIVE which allows outside signals back into the channel path is wired to the RING middle contact The shield connection for both signals is the SLEEVE The jack contains a mechanical switch or break which opens or breaks the normal contact between the TIP and RING portions whenever a plug is inserted into the jack This mechanical switching technique is called normalling A connector is normalled if it provides the signal to be disconnected when a plug is inserted but T Tip send signal R Ring receive signal Sleeve ground allows normal signal flow if no connector is plugged in This jack is located on the rear panel just above the MIC IN connector EFFECT Send Control The EFFECT control is similar to the AUX controls
70. through the STEREO L amp or MONO SERTion jacks for continuous processing of the final mix of signals Once the basic system configuration has been determined it s time to physically wire the various components together the house and monitor speakers amplifiers microphones etc When installing this or any audio system make sure the signal processing devices are turned off and all the level controls are turned down Once all the connections are made and double checked begin energizing the system by first turning on the mixer then any active effects devices and finally the power amps Note When shutting a sound system down ALWAYS turn the power amps off FIRST Wait at least for 30 seconds for SOUND REINFORCEMENT Stage Monitor Systern Monitor Speake Power Amplifier Electronic Rhythm Unit fey Compressor Limiter Vocal Mic SN Reverb Mics es up L5 E codiiie d Guitar Electric Bass Mono Keyboard L House Speaker Z Main Power Amplifier Main System Electric Guitar 32 SOUND REINFORCEMENT Stage Monitor Systern Monitor Speake Power Amplifier Electronic Rhythm Unit fey Compressor Limiter Vocal Mic SN Reverb Mics es up L5 E codiiie d Guitar Electric Bass Mono Keyboard L House Speaker Z Main Power Amplifier Main
71. 0 01 180 2 807 gt A A 9 04 J 0 gt Page 4 1510 3 4 50V 90 00 50 20 00 POWER SUPPLY PCB 7 4 18 POWER SUPPLY SECTION M 312 M 320 1 2 3 4 SW PCB m 7 L U S A CANADA SW PCB ASS Y 4 B OR A E H 2004 ji 0001 R A A OV GRY 4 NJM7BMISA 9062 NJM79MISA woes B U003 NuM78MO6A C 004 NJM4560DX 7000 254126440 9002 25318 O 1 9003 2SAI264 01 l 4 A 0007 5 5 A HN 0009 000 2SAIOI5 GR 1 QO 0012 2502877 0 220 A COo 000 9013 0014 254 217 0 DOO KBPC 602 0002 0003 wosC 0004 0005 U058 0006 0007 0044 155133777 D 150529070 00 0 0047 pF 250 Not used 52677025 00 53070212 00 54290000 78 PPE reci T4A 250V 0 Foos e 0914219007001 2 73 SEDENS BOT UN U K 2 0 SLOWSLOW 53070210 00 muc 00 004 0003 uoaz 9002 000740014 9003 0007 0014 0002 0003 55 TR peas Ass 18 PCB pin A 5 er J E bof fear bs A A 8 9 Ll 150 uw amp 4 15 0 2 005 A
72. 0157200 PCB Ass y MON BUSS M 30B 3 31 5780423006 Screw Tras M3 x 6 BLK 3 32 5780423008 Screw Tras M3 x B BLK 3 33 5780963006 Screw Tras Tapping 3 x 6 BLK 3 34 5785 113000 Lock Washer 3 External Teeth 2 4 EXPLODED VIEW 4 METER SECTION SIDE CHASSIS R SECTION 320 312 Exploded View 4 REF NO 4 1 4 4 4 4 4 4 NONA 4 9 4 10 4 22 4 23 4 24 4 25 Continued page 2 10 5 5800667301 5800667201 5800667101 5800606500 5296007100 5800663400 5200145800 5200145810 5800278200 5800 116200 5800663100 5200145400 5200145410 5200145420 5200145430 5320032600 5320032700 5320032800 5320032900 5320033000 5320033100 5320033200 5320033300 5800666901 5534650000 5317001700 A 5128027000 A 5350010700 A 5350008200 A 5128047000 A 5350008300 5350010800 5200145600 5200145610 5800665300 5800663500 5200158100 5200158110 5200158120 5200157400 5200157410 5200157420 5200155300 5200155310 5200155320 5800663201 5332014400 A 5043299000 A 5534118000 DESCRIPTION COMMON MODELS Parts marked with require longer delivery time REMARKS Panel Ass y Meter C Panel Ass y Meter 8 Panel Ass y Meter Escutcheon Meter Meter VU Bracket Meter METER P 901 Mounted PCB Ass y METER P 901 Not Mounted Button Power
73. 1 pe EFFECT OUT 0 d8u 10 48 AUX 1 OUT 0 dBu 10 48 AUX Z OUT 9 dBu 10 AUX 3 OUT 9 10 dBV AUX 4 QUT 0 dBu 10 STEREO OUT L 4 dBm 10 dBV x2 STEREO OUT 4 dBm 10 08 x2 MONO OUT 4 dBm 0 dBu MONitor OUTPUT L 0 dBu 10 dBV MONitor OUTPUT 0 dBu 10 dBV Headphones SOLO OUTPUT 10 dB FUNCTIONAL SEQUENCE M 308 8 di 2 OL Indicator PFL Switch o5 gi EQuatizer 9 oN INSER Tin YP lt O switch Switch mic otk PRS gt 5 oem F rare iN 6 LE Pre Post EQ e EFFECT npe Co POST Switch 2 LY m E 1 Fader LINE Switch ii PGM RTN 1 Selector RTN 1 LEVEL Buss 1 oF APE RIN v Pius 82 5 Selector 7 5 LEVEL PFL Indicator a PFL From Z n 45 SOLO Buss EFFECT e d t EFFE Buss 5 67 METER Function PFL Indicator Switch 7 by SUB IN AUXI a Meter 1 5 AUX 2 FFF STEREO SUB IN L 5 Q stereo Master Fader L oo om Stereo uss INSER j p Stereo Master Fader R ass Stereolk uss 2 inem STEREO punt yf SUB IN R MONO Master Fader D el EXT N 1 MONitor Swit
74. 20 312 320 AUX 5 W349 350 R316 R317 R318 R319 R320 R321 R322 R323 R324 R325 R326 R327 R328 R329 R330 R331 R332 R333 R334 R335 R336 6337 040 8345 8346 8347 R348 R349 R350 C301 C302 C303 C304 C305 C306 C307 C309 AUX 4 EFFECT PARTS NO DESCRIPTION REF NO 5240029820 5240031020 5240031020 5240031020 5240024220 46 1 15 156 229 5240024220 5240024220 5240028420 5240028420 5240028420 222 2282 1 261 126 1 2 0 5240028020 5240028020 5240028020 5240031420 5240032420 8209 8202 8202 222 56 5240027220 3900 5240029820 4 76 CAPACITORS 5260165252 5260165952 5260165952 5260165952 Elec Elec Etec Elec M 312 M 320 M 312 M 320 M 312 M 320 312 M 320 M 312 M 320 47uF 25V 1004F 10V 100uF 10V M 312 M 320 1000 10 soni 26304 5305 C310 C311 C312 C313 C314 C316 C317 C318 C319 C320 C321 C322 C323 C324 C325 C326 C330 6331 4 C335 C336 C337 C338 R303 R304 R305 R306 R307 R341 R342 R343 R344 PAN E NO 5173449000 5173449000 5173449000 5173456000 5173455000 5173465000 5260165252 5260165252 5260165252 5173433000 5260165252 5260165052 VARIABLE 5282013100 5282013100 5282013100 5282409700 5282011500
75. 427 R428 R429 R431 R432 R433 R434 R435 R436 R437 R438 R439 R440 R442 R445 R446 R447 R452 R453 C401 C402 C403 C404 C405 C408 C409 C410 C411 C412 C413 C414 C415 CARBON RESISTORS resistors are rated 1596 tolerance 1 6W and Of carbon unless otherwise noted R401 R402 25183562000 5240033020 5240028820 5240029620 5240030620 5240033020 5240025820 5240029820 5240033020 5240028820 5240029620 5240025820 5240033020 5240030620 5240031820 5240033020 5240025820 5240033020 5240028220 5240030220 5240033020 5240024220 5240030620 5240026620 5240033020 5240031420 1 1 8k 3 9k 102 100 9 10012 4 762 1001 1 3 9k 1002 10062 10 3311 100 10002 100 2 1 6 8k2 100 7 222 106 2205 100417 222 CAPACITORS 5260165252 5260625500 5173457000 5260165252 5173457000 5260165252 5260162550 5173457000 5260165252 Etec Elec Ceramic Elec Ceramic 47uF 104F 100pF 470 100pF Elec Etec Ceramic Elec 47 uF 10 uF 100pF 47 pF 220 1 4 Nonflammadie 002 2 1 25V 26V 16V 25V C416 C417 C418 C419 C420 C421 C422 C423 C424 C425 4268 428 C429 C430 PARTS NO 6260165952 5173449000 6260165252 5260162560 5173457000 5260165252 5173433000 5260165252 5260162560 VARIABLE 5282013800 5282410300 6282410300 DESCRIPTION Elec Ceramic Elec Elec Ceramic 100 uF 22pF 47 pF
76. 5240029620 5240025820 5240033020 5240031420 5240033020 229 1 4 Nonflammable 12 682 27 102 106 17 152 471 106 1002 17 372 1002 2272 372 105 82 106 6 8 100 2 10082 1002 91677 106 39022 2271 39022 100k2 1 8k2 3 17 1002 1002 222 100k C101 C102 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 C115 C116 C117 C118 C119 C120 C121 C122 C123 C124 C125 C126 C127 C128 C129 C130 C131 C132 R115 R129 R132 R137 R155 R165 R167 J105 J106 3107 4109 5101 5105 5106 5107 5108 CAPACITORS 5260165252 5260162950 5172216000 5260162650 5173457000 5172216000 5173079000 5260163452 5260162550 5173457000 5260165252 5260162550 5173449000 5170366000 5173453000 5263102620 5263166023 5173453000 5263104020 5263103020 5260165252 5260160550 5260162550 5173457000 5260165252 5173433000 VARIABLE 5282707400 5282013700 5283505200 5282410200 5282013100 CONNECTORS 5336164700 5336165000 5122373000 SWITCHES 5300037800 5300039100 5300039200 5300039300 MISCELLANEOUS 5181761000 5181771000 DESCRIPTION Elec 47 25V Elec 10uF 63V Ceramic 220 Elec 10 25V Ceramic 100pF Ceramic 330pF Elec 100000 6 3V Elec 220 25V Elec 1 16V Ceramic 100pF Elec 47 25V Elec 10uF Ceramic 22pF 0 0039y
77. 8 M 320 4 3 0 6 RIN 2 7 29 U30 AU3O5 06 0306 400 0301 0302 4 AUX 4 9 BALANCED AMPLIFIER L PCB ASS Y 1 2 3 4 R7O5 6 Bk R7O7 C704 R7O5 47p R706 6 7 BAL UNBAL B 0 7 2 E 0 t 670 E on UN O R701 4 i 108 01 070 272 1 R702 R704 R708 P702 47k 100 2 I R709 1 R703 3 2 d ME 1 UN LEJ i C707 iini STEREO OUT f Eo E BENE Page 4 1 8 7 312 Page 4 2 8 7 320 4 3 8 7 P7O 1 ov 470 NJM5532D 15 Page 4 10 11 15 i ov 5 D ST R OUT R STEREO OUT 3 as J703 BAL AMP L 4 1 B 7 55 Y 312 4 2 6 ___ __ _ _ aa a M 320 E Page 4 371 4 10 BALANCED AMPLIFIER R ASS Y 1 2 3 4 0721 725 6 8 R727 10k i 1 1 I C724 100 C725 47p C726 R730 BAL UNBAL 100 250 10 572 4 9721 272 1 C723 10 16V l B M 308 Page 9 11 0 1 U 2lti 72 312 4 12 0 1 R724 R728 M 320 4 12 0 1 R727 R73 1 P9 100 26 i5v
78. 903 0905 DSO 0902 308 Page 4 8 C 3 4 L CH IN i 312 E 1 Page 4 14 8 C 3 4 R CHIN um 4 320 age 4 14 B C 3 4 R909 2 2k Page 4 17 8 6 id c 909 4 17 B D M 312 bs 10 25 25 4 18 6 15 n I5V 320 METER ASS Y 52001458 9 Mounte METER PCB ASS Y 52001458 10 69 0 Not mo 090 RC4558P 090 10904 IK60 090 0902 25 1815 GR 0905 0906 SLPI3 0903 0904 254105 GR 090 9902 9904 0906 0903 0904 6902 R908 2 2 50V 10k R9IO 2 2k C906 2 M 308 Page 4 1 A 11 age 4 2 A 320 Page 4 3 1 4 16 TALKBACK PCB ASS Y M 312 M 320 1 2 t 3 4 1601 Q602 Q603 0601 060 605 100k 606 C607 R608 C608 CONNECTOR V DE y 10725 gt R603 C604 9604 8 R603 4 2 IOOk 68p 7 4 7k qJ 100k Lc du M 312 Page 4 2 10 93 2 320 od Page 4 3 E 1O 6 O 50 RD 55 C 0601 RC4558P 960 2SK304 9602 9603 25 8 5 GR 0601 ISSI33T77 5 l 6 l 7 060 6 33k C609 47p 860 2 47 25V 6601 10 25 aan 0 l es Ux ss AUX BUSS 2 AUX BUSS 3 3 86 22k AUX BUSS 4 O PGM B
79. Bu 8V 22 ohms 2 k ohms 10k ohms 0 dBu 0 78 V 20dBu 8 V 490ohms 2 k ohms 10k ohms 10 dBV 0 3 V 10 dBV 3 1 V 22 k ohms 10 dBV 0 3V 18dBV 8V 100 ohms 2k ohms 10k ohms 10 dBV 0 3 V 18 dBV 8V 8 ohms stereophones 1 5W 1 5W 6 VU Type 10 dB above nominal output level 80 dB 120V AC 60 Hz 41 W 220 60 Hz 41 W 240V 50 Hz 41 W 100 120 220 240 V AC 60 60 Hz 41 W PERFORMANCE CHARACTERISTICS Equivalent Input Noise DIN Audio A 150 source 130 48 13248 tignal to Noise Ratio DIN 8 Mic to PGM Output 60 98 62 dB 1 Line to PGM Output 86 98 87 dB 8 Line to PGM Output 80 48 82 dB 1 Line to Effect Aux Output 85 08 87 dB 1 Line to Stereo Output 86 dB 88 dB 1 Line to Mono Output 83 98 85 dB 1 Line to Monitor Output 84 6 dB 1 Line to Solo Output 86 dB 88 dB Totd Harmonic Distortion 1Mic Input to 1 PGM Output 0 025 20 Hz 20kHz EO OUT 50 dB above nominal input level and MIC ATT 30dB on with 30kHz L P F connected 1 Linelnputto 1 PGMOutput 0 02 20 Hz 20kHz EO OUT nominal input level with 30kHz L P F connected Intermodulation Distortion IMD SMPTE Method 1 Mic Input to 1 Output 0 06 EO OUT 50 dB above nominal input level and MIC 30dB on 1Linalnputto 1 PGMOutput 0 045 EO OUT nominal input level Frequency Response Mic Input toPGM Output 20 30 kHz d8 Line Input to Any Output 20 30 kH
80. C signal have someone speak into the MIC Engage the channel ON switch and slowly raise the FADER The level will be correct if the assigned PGM or MASTER VU meter reads near or at and the channel FADER is set between 7 8 the shaded area on the fader scale If the fader is below this range reduce the gain trim slightly and raise the fader to the desired position if the fader is above 8 lower the fader to the proper range then slowly increase the gain trim until the VU reading is correct at or near O If the MIC signal level is too high or strong the channel OL overload LED will fire If this indicator is on constantly turn the MIC TRIM control down If this fails to correct the over load condition press the PAD switch This inserts a 30 dB pad into the mic circuit prior to the first stage of gain thus reducing the possibility of overloading and distortion If the OL LED only flashes periodically but the channel fader is at a low position below 6 adjust the MIC TRIM control down until the fader can be raised to the proper level These procedures are designed to provide you with the proper amount of gain the lowest noise and the most headroom possible Line level signals such as those generated by a synthesizer as in our example may be set in a similar fashion as the MICS Merely select LINE as the source and adjust the LINE TRIM control and fader for the desired level Unlike MIC signals instruments which
81. EF NO PARTS NO DESCRIPTION MODELS REMARKS 5 1 5800666701 Panel Rear M 320 5800666601 Pane Rear M 312 6800666501 Panel Rear M 308 5800670901 Panel Rear IJ M 308 5 2 5200156310 PCB Ass y SUB M 320 M 312 5200156300 PCB Ass y SUB IN 308 5 3 5317003200 Plate Jack Mounting 5 4 5800663601 Holder Ass y Jack 5 5 5200156900 PCB Ass y JACK 5 6 5200157000 PCB Ass y JACK B 5 7 5200156410 PCB Ass y JACK C M 320 M 312 5200156400 PCB Ass y JACK C M 308 5 8 5200155900 PCB Ass y BUSS JACK 5 9 5200156600 PCB Ass y BAL AMP L 5 10 5200156700 PCB Ass y BAL AMP R 5 11 5200156810 PCB Ass y MONO AMP M 320 M 312 5200156800 PCB Ass y MONO M 308 5 12 5800664100 Holder Input Jack 5 13 5200155600 PCB Ass y INP JACK 5 14 5200163600 Ass y RIAA 308 5 21 5781503008 Screw Pan washer Tapping 3 x 8 BL 5 22 5780423008 Screw BIND M3 8 5 23 5781073010 Screw Pan Tapping 3 x 8 BLK Continued from page 2 8 Exploded View 4 COMMON REF PARTS DESCRIPTION MODELS REMARKS 4 26 5800674101 Heatsink B M 312 M 320 4 27 5800674201 Heatsink M 312 320 4 31 5780133006 Screw Sems x 6 4 32 5781024006 Screw Pan Tapping 4 x 6 4 33 5780003008 Screw Bind M3 x 8 4 34 5781023008 Screw Pan Tapping x 8 4 35 5781223008 Screw Flat Tapping 3 x 8 4 36 5781162606 Screw Bind Tapping 2 6 x 6 BLK
82. F Ceramic 47pF Poly 0 0075yF Meta 0 0027 Ceramic 47pF Poly 0 03 uF Poly 0 011 Elec 47uF 25V Elec 470 0 50V Elec 10uF Ceramic 100pF Elec 47uF 25V Ceramic 0 017 RESISTORS 561 RD 20 kt A 100 9 B with c click 8 with c click 200 C C A C with c click 7 10P F 2P F Pusn sw 2 2N Push sw 2 2N 5 gang Push sw 2 2N Push sw 4 2N Jumper wire 5mm Jumper wire 30 mm 3 1 INPUT PCB Ass y TRIM _ s EQ ean 3 2 INPUT JACK PCB Ass y MIC IN LINE IN D OUT INSERT EFFECT INP JACK PCB Ass y REF NO PARTS NO 5200155600 5210155600 5330011400 5330011500 5330010800 5330041400 5800664100 5317003200 5781012605 DESCRIPTION PCB 1 4 Jack TRS 1 4 Jack TRS 1 4 Jack SW XLB F Holder Input jack Plate Jeck mounting Screw Pan head Tapping M2 6 x 5 3 3 INPUT BUSS A PCB Ass y JAFAN MODEL ONLY 3 4 INPUT BUSS B PCB Ass y 323 2528 3 5 INPUT BUSS PCB sS sitoxor nccosapiox spores eie 74 C POG INP BUSS A PCB Ass y REF NO PARTSNO DESCRIPTION 5200157100 Ass y fall except J 5200157110 PCB 5210157100 CONNECTORS P501 P508 5336166700 7P P509 P516 5336167000 10P M
83. FFECT t I0 2 av OTHER I EFFECT LEVEL Hil ni 10980 174348 EFFECT AUX MASTER FROM STERED MONO EXT 1 2 EFF CT AUX TO MON 1048v TD T 7 gt Q gt P 0404 ats eS OO C ii HE f 1 P 1848 2 11 gt gt Gi x eL v gt VON DUTT MONITOR 4 7 10dBV1 i4 2 gt Wee i 12248 PHONES SOLO 1 SW LSW 1 bLg FROM Soto CONTROL v cm 5 CREWE 2 0 EFFECT AUX MON OUT EFFECT AUX MON SOLO OUT 20 NOTE OPERATIONAL LEVEL O Vrms O 680 0775 Wms O dBm 0 775Vrms 00 SOLO EFFECT AUX MONITOR MASTER 312 320 LEVEL DIAGRAMS MAIN SIGNAL FLOW IN j DUE GRO LLINE 19 49V 10 20 40 80 LOW IN TRIM LINE LEVEI N INPUT FADER OPERATIONAL LEVEI 4 O d8V 1 Vems 048 0 775 Vrms 0 775 Vrms EFFECT MONITOR SIGNAL FLOW wa EFFECT RIN EFFECT
84. GM 2 has 2 amp 6 PGM 3 has 3 amp 7 and PGM 4 has 4 amp 8 These are RCA type IN jacks and are designed to handle line signals with a nominal level of 10 dB As mentioned previously these signals are routed to 1 the corresponding LINE IN connector usable only if no connection is made to the 1 4 LINE IN jack and 2 to the respec tive TAPE RTN select switch Thus returning tape signals can be selectively routed to inputs input auxiliaries or to the tape monitor sections Tape Return Signal Routes M 312 CHANNEL t i2 M 32O CHANNEL i 201 LOW HIGH FROM ANOTHER MASTER PCO ASS Y 4 I TO PCB Ags RIN L PGM MASTER PCB ASS Y esa A 30 OPERATIONAL NOTES AND APPLICATIONS This of the manual is designed to assist you in initially connecting and using your 300 Series Mixer We provide several examples to aid you but these guidelines should not be considered as the only way to perfrom the task at hand As you learn the various sub systems of the 300 you will discover alternative work methods which may suit your particular mixing situation more appropriately BASIC SOUND REINFORCEMENT The 300 Series was designed
85. L level The average level shown on the VU meter is not always a safe concept Rely on the peak LEDs the meters are only a guide METER Select Switches Each of the four 4 PGM VU meters can be swtched to provide visual monitoring of either the PGM busses or the TAPE RTN s When the switch is in the up position the meter receives signal from either the corresponding PGM buss or from TAPE RTN s 1 4 depending on the position of the TAPE RTN SELECT switch When the Meter Select switch is in the down position the meters can receive signal from either the buss or 5 5 8 Once the metering source is sdected the meters will follow the selection of the RTN 5 switches in the TAPE RETURN MONITOR sections see below 22 Q TAPE RTN Select Switch When pressed this switch connects the specific TAPE RETURN to the corresponding TAPE MONITOR section allows access of the return ing signal to the METER and provides signal to a specific AUX SEND control If the returning signal is not chosen the switch replaces the TAPE signal with that of the PROGRAM Thus the MONITOR and AUX sends can receive process signals from either of the TAPE RE TURNS or the PROGRAM AUX 3 AUX A Send Controls M 312 amp M 320 ONL Y Each MONITOR section contains one of these controls AUX 3 is accessed from TAPE RE TURNS 1 4 while AUX 4 derives signals from TAPE RETURNS 538 Since the AUX 3
86. LINE INput jack then press the LINE switch on channel 1 This automatically routes the track 1 return to input channel 1 By assigning the channel directly to the LEFT and RIGHT STEREO busses the remixed signal can be re introduced to the remainder of the signals As with any recording session once the mix down is completed review the results before you repatch or put the equipment away If the results indicate the need to make changes go back and do it again 39 VIDEO PRODUCTION POST PRODUCTION AND AUDIO SWEETENING Mixing audio for video has become a demanding field due to the rising sophistication of both the production facilities and the viewing audience With the proliferation of cable T V systems offering stereo audio feeds as well as the coming stereo and multichannel sound MTS systems for over the air programming the awareness of the importance of quality audio will continue to grow Another rapidly emerg ing area of importance is non broadcast video As corporate and industrial telecommunications expand the need for improved audio quality will keep pace The TASCAM 300 Series has all the features necessary to fulfill the audio control needs of the small to medium produc tion house or off line editing sweetening facility Virtually all popular brands and models of 1 2 and 3 4 VCR s and 1 VTR s will interface directly with the 300 s Typically MONO or STEREO audio signals from a variety of sou
87. LLANEOUS 0 5 3001 5330010401 Jack PHONES jack All resistors are rated 5 tolerance 1 6W and P002 5336126400 4 of carbon type unless otherwise noted 5041237000 Holder Fuse Normal E US C J GE R001 80022 5183582000 1500 1 4W Nonflammable 5332014200 Holder Fuse Mini R005 A 5183582000 1500 1 4 Nonflammabie IE UK A R007 RO08 5185648000 2 20 1 2 Nonflammable 5555590000 Earth plata R009 R010 5240032220 47k2 1 BW 5800607500 Heatsink RO11 RO12 5240028220 1k2 1 BW 5033291000 Plata Insul 1S 313D R013 R014 5240030820 120 5033295000 Tuba Insul R015 8016 5240027420 4702 1 8W 5788102000 Tube NL 0 85 x 1 45 10 8017 8020 5240029220 2760 5800663500 Blackat Jack 8021 8022 5183586000 2200 1 4W Nonflammable 5780103008 Screw Panhead M3 x 8 R023 R026 5183530000 10 1 4 Nonflammable 8027 RO28 5240021820 220 1 BW 5181761000 Jumper wire 5 mm 5181763000 Jumper wire 10 mm CAPACITORS C001 C002 A 5263164500 Meta 0 047uF 250V C003 C004 5173433000 Ceramic 01 0 005 0006 A 5173090000 Elec 2200uF 36 m M 0005 006 5260091600 Elec 3300uF 35V M 313 M 320 US U S A C007 C008 5260161150 Elec 2 20 50V CANADA 009 C010 5260165252 Elec 47uF 25V 74 C011 5173433000 Ceramic 0 01uF GE GENERAL EXPORT C012 5260092700 Elec 6800uF 16V AUSTRALIA M 308 M 312 E EUROPE C012 A 5260093200 Elec 10000uF 16V UK U K 00 IL LIMITED AREA J JAPAN 3 25
88. M 320 PARTSNO DESCRIPTION a nae H ARRAS 5200157600 PCB Ass y 5210157600 IC 5220406700 RC4558P TRANSISTORS 5232007000 2SK304 T B 5230779520 25 1815 GR DIODE 5224015000 155133777 CARBON RESISTORS All resistors are rated 35 tolerance 1 6W and of carbon type unless otherwise noted R601 R602 5183562000 220 1 4W Nonflammable R603 5240033020 100 R604 5240030080 10k R605 5240033020 100k2 R607 5240028220 165 R608 5240030620 167 R609 5240029820 4 7 0 R610 5240033020 100k2 R611 5240031820 33kn R612 5240033020 100k R613 R616 5240031420 22 0 R617 R618 5240030620 10 0 R619 R622 5240031420 22 0 623 628 5240033020 100k2 R629 5240036220 75 7 R630 5240033020 100k CAPACITORS 5260162650 Elec 104F 5260162550 Elec 104F 5173455000 Ceramic 68 5260165052 Elec 47uF 5173449000 Ceramic 22pF 5260162650 Elec 10 uF 5260162550 Elec 10 5173453000 Ceramic 47pF 5260165252 Elec 474 5173433000 Ceramic 0 010 VARIABLE RESISTOR 5262410400 5Ok RD x 2 MISCELLANEOUS 5336165200 12P F 5336164400 Connector F 5300039600 Push sw 4C 5 x 2C L 2C NL NS 5181761000 Jumper wire 5mm 5800663300 Support PCB 5781023008 Screw Pan head tapping M3 x 8 3 16 JACK A PCB Ass y INSERT MONO EFFECT RTN 3 17 JACK B PCB Ass y JACK A PCB Ass y TB MIC PCB Ass y M 312 M 320 5200157700 5210157700
89. MAIN MIX system is the most complex of the submix systems It is capable of accepting a number of different types of signals and pro cessing them for a wide variety of applications This is the primary mixing system It is used to mix signal sources such as mics or tape playback and route them to the PROGRAM PGM GROUPS and STEREO LEFT and RIGHT BUSSES These busses can be used to provide signals to tape recorders P A amplification systems video recorder or any other sound system The EQUALIZER EQ network resides in the input channel section of the MAIN MIX system and is selectable Since other subsystems may derive their input from the channel either PRE before or POST after the EQ section it is important to understand the various inter relationships of the multiple subsystems In some cases the where or how much of one subsystem may greatly affect the signal sent to another Each channel has either two or three input sources from which it may receive its input As we will see later each source can be used independently of the others allowing the 300 Series to accept and mix multiple signals For now the input source don t worry about what type of signal it is or where it comes from will proceed through the channel strip After processing the signal is assigned to a BUSS or BUSSES These may be the PGM GROUPS 1 4 or the STEREO LEFT and RIGHT or a combination of both depending on the applica tion Mu
90. Maximum Output Level 10 k ohms 10 dBV 0 3 V 10dBV 3 1 V 3 5 k ohms 0 dBu 0 78 V 10 dBu 0 25 V 12 k ohms 10 dBV 0 3 V 20 dBV 0 1 V 100 ohms 2 k ohms 10 k ohms 10d8V 0 3 V 1808 8 V 7 k ohms 10dBV 03 V 11 dBV 35 100 ohms 2 k ohms 10 k ohms 10dBV 0 3 Vj 18 dBV 8V 6 k ohms 10dBV 0 3 V 11 dBV 3 5 V B k ohms 10 dBV 0 3 V 18dBV 8 V 20 ohms 200 ohms 600 ohms 4 dBm 125 V 25dBm 14 V Balanced 20d8m 8 V Unbalanced 100 ohms 2kohms 10k ohms 10dBV 0 3 V 18 dBV 8 V 20ohms 200ohms 600 ohms 4dBm 1 25 V 25 dBm 14 V Balanced 20d8m 8 V Unbalanced 14 Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Monitor Output ya Output Impedance Minimum Load impedance Nominal Load Impedance Nominel Output Level Maximum Output Level RCA Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Solo Input Input Impedance Nominal Input Level Maximum Input Level Solo Output Output Impedance Minimum Load Impedance Nominal Load Impedance Nomina 00 Level Maximum Output Level Headphone Output Load impedance Maximum Output Level Meter Peak Indicator Level Fader Attenuation 1 kHz Power Requirements Europe U K Australia General Export 20 ohms 2 k ohms 10 k ohms OdBu 0 78 V 20d
91. NE IN OUT 0 02 or less IN gt STEREO OUT 0 02 less 1 LINE IN MON OUT 0 02 or less 1 LINE IN EFFECT OUT 0 02 96 or less 1 LINE IN gt AUX OUT 0 02 296 or less 1 LINE IN gt SOLO OUT 0 02 96 or less 1 12 S N RATIO S N ratio should be measured with the input and output levels set to nominal as previously described and a 150 ohm dummy load con nected to the MIC IN connector Specs are given in the table below 308 DIN IHF A 125 MIC 62 5 OUT 150 2 SOURCE HC 50dB 20 LINE 60 dB 86 dB 87 dB ezuw 80 dB 82 dB LINE TO PGM OUT LINE OUT EFF AUX OUT 82 dB 84 dB 85 dB 87 dB TO ST OUTPUT 1 LINE TO MONO OUT 1 LINE TO SOLO OUT 1 LINE TO MON OUT 84 dB C L B6dB B8 dB EXPLODED VIEWS ASSEMBLIES PARTS LISTS AND CIRCUIT SCHEMATICS INSTRUCTIONS FOR SERVICE PERSONNEL BEFORE RETURNING APPLIANCE TO THE CUSTOMER MAKE LEAKAGE CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT NOTES Parts marked with require longer delivery time All resistors are 1 6 watt 5 unless marked otherwise Resistor values are in ohms K 1 000 ohms M 1 000 000 ohms All capacitor values are in microfarads p pico fa
92. NSERTion LINE Switch D PGM 1 Selector 1 LEVEL RTN _ sus IN 1 5 Selector RTN 5 LEVEL PFL Indicator 2 2 PFL y From EFFECT p Cc RTN 1 VEL Dz 1 EFFECT Function AUX 4 PFL Indicator Switch POST Switch AUX 4 Mater 1 5 LEVEL SUB IN AUX2 43 STEREO SUB IN L 2 Stereo Master r L STEREO St Buss L INSE Stereo Master Fader STEREO Stere Buss INSE sus in MONO Master Fader e Assign Buttons ue E A To PGM Busses To STEREO Busses To AUX 1 To AUX 2 To AUX 3 To AUX 4 EXT iN 1 MONitor Switch Rack EXT IN 2 a 9 SOLO Buss e O80 On SD SEE PFL Indicator Buss Channel ON Indicator 52 RTN TON Indicator RTN 1 PAN Mute SRS ll ee SIN Y g Master Level s S AUX 2 N 2 M oa 3 a 26 ED sim Swen e rion LG Co Master amp RTion To Meters L amp MONO MONITOR Level AUX 2 METER Switch Rack PHONES Level Channel D OUT 10 Y Busses STEREO Busses 9 4 dBm 10dev OUT
93. No amount of tonal change can for example correct instru ments which are out of tune or signals which are distorted To help you learn and properly respect the capa bilities of the EQUALIZER section we offer these two guidelines 1 The BEST equalization is non at all 2 If EQ is required use the east amount possible to perform the task nl B gt 5 20Hz 50Hz 100Hz 200H2 500Hz 1kHz 2kHz 5kHz 10kHz 20kHz WE EH w 8 4 RESPONSE IN dB BA N Zl N JT A ft X AR 1 N ZW N woodwind instruments X r p ct T i pk lt w wan wt es ED Gun UE harmonics musical instruments _____________ instruments Hm korr merde dace N em a s 400 OR instruments n MP s wa Um um FUP A
94. P517 5336126300 518 5336126200 2 M P519 5336127200 12P M P520 5336126300 3P M 308 141 INP BUSS B PCB Ass y M 312 M 320 PARTSNO DESCRIPTION 5200157800 Ass y 5210157800 PCB CONNECTORS 521 524 5336166700 7P P525 P528 5336167000 INP BUSS C PCB Ass y M 320 REF NO PARTS NO DESCRIPTION 5200157900 PCB Ass y 5210157900 CONNECTORS P531 P538 5336166700 7 P539 P546 5338167000 3 6 BUSS AMP PCB Ass y AUx 3 2 3201 LEVEL PAN l i 5 BUSS PARTSNO DESCRIPTION REF NO PARTSNO DESCRIPTION 5200155800 308 8207 5240025820 1000 5200155810 Ass y M 312 M 320 R208 5240034620 470kQ R209 5240032220 476 5210155800 PCB 210 5240029120 2 46 211 5240029920 7 R212 5240030220 6 8 5220416600 2 204100 R213 R214 5240030620 1065 5220419600 NJM55320 8215 8216 5240033020 100 0 5220416600 80 R217 8218 5240023420 1082 R219 A220 5240034620 470 02 DIODES R221 R222 6240032220 47k 0201 2202 5225006400 LED SLP 235B GRN A227 R230 5240031420 22 0203 5225005400 LED SLP 1358 RED R231 R232 5240027220 3900 233 234 5240031420 22 2 312 320 CARBON RESISTORS R237 5240031420 22 0 R238 5240027220 39082 All resistors are rated 5 tolerance 1 6W and of carbon type unless otherwise noted CAPACITORS R201 R202 45183562000 2282 1 4
95. R select switch settings Light Terminal This connector is provided 1 on the 312 and 2 on the 320 for the attachment of Little Lights The connectors supply 12 V 5 W max 28 ADDITIONAL REAR PANEL FEATURES SUB IN Jacks These jacks all perform the same function they provide access into the intermediate stages of various busses The signals are added to the buss just prior to the master level or output fader control This allows externally produced and mixed signals to be added to the internal signals being mixed thus the signals from another 300 Series or similar mixer could be patched into the yours The second mixer would then become the master controlling the final signals of both units PGM SUB IN Jacks 1 4 Provide access to the four sub groups R and L SUB IN Jacks Provide access to the main STEREO BUSSES EFF SUB IN Jacks Provide access to the EFFECT SEND buss AUX SUB IN Jacks Provide access to the AUX 1 and 2 busses on the M 308 And the AUX 1 2 3 and 4 busses on the M 312 and M 320 EXT SOLO and SENSE This 1 4 stereo phone jack allows external solo signals and control signals to be added to the on board system The Tip connector accepts the external solo signal the Ring connector accepts the external solo control signal while the sleeve is gound TAPE INs Each Program section carries the TAPE IN connectors for two tape tracks or inputs PRO GRAM 1 has TAPE INs 1 amp 5 P
96. T EQUALIZER 4 aca evo p ux Qf mmm ENIM W LINEAR FADER VA STEREO JACK 63 XLR 3 32 5 6 vu M TER EQUIVALENT Wi TN gt INVERTING P MON IWERTING AMP SUMMING NODE 1 H I 1 BALANCED gt oa 1 PEN qp e L 2 6 d H if 312 320 BLOCK DIAGRAM nad BEE DH H 9 INPUT PCB ASS Y M 3I2 CHANNEL 16212 M 320 CHANNEL 15 20 lt 1 wos 069 0 776 Wes i Vc 0 7739 2 OPERATIONAL 5 INPUT EQUALIZER PUGH SWITCH IN o PUSH SWITCH V4 JACK e V4 JACK Venet ORE gt ROTARY POF LINEAR FADER 8 3 0 XLR 3 32 VALENT METER Phan LEO INVERTING CONNECTION 7 NON INVERTING ES SUMMING NODE 1 BALANCED mdp n i e 8 2 V la f 7 m 9 ELECTING 917
97. TASCAM TEAC Professional Division 3OOseries Mixing Consoles OPERATION MAINTENANCE CAUTION CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK 00 NOT REMOVE COVER OR BACK NO USER SERVICE ABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The lightning 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 of the presence of important operating and mainte nance servicing instructions in the literature accompanying the appliance The guarantee of performance that we provide for the 300 Series Mixers must have several restrictions We say that the 300 Series Mixers will perform properly only if they are adjusted properly and the guarantee is that such adjust ment is possible However we cannot guarantee your skill in adjustment or your technical com prehension of this manual Therefore setup is not covered by the Warranty If your attempts at internal adjustment are unsuccessful we must make a service charge to correct your mistakes Recording is
98. TORS All resistors are rated 5 tolerance 1 6W and of carbon type 55 otherwise noted R721 R722 R723 R724 R725 R726 R727 R728 R729 R730 R731 R732 R733 R734 R735 C721 C722 C723 C724 C725 C726 C727 P721 J722 5721 5240034620 5240032220 5240029920 5240029120 5240030220 5240030620 5240033020 5240023420 5240028420 5240028020 47 47 5 15 271 6 8 1011 1005 1053 126 82082 CAPACITORS 5173433000 5260162550 5173457000 5173453000 5260166152 Ceramic Elec Ceramic Ceremic Elec 0 014F 104F 100pF 47pF 1004F 25V 16v MISCELLANEOUS 5334041500 5330509500 53009 11400 5181761000 5781012605 XLB M RCA jack 4P Stide sw 2 2N Jamper wire 5 mm Screw Pan head Tapping M2 6 x 5 3 10 AUX PCB Ass y AUX PCB Ass y REF NO PARTS NO 5200156100 5200156110 5210156100 IC s 5220416800 5220416800 5220416800 5220416600 DIODES 8225005400 U301 U302 9303 0304 U305 U306 D301 D302 DESCRIPTION Ass y PCB Ass y M 308 IM 312 M 320 PCB NJMO72D E 0720 6 NJMO72D E NJM204100 M 312 M 320 LED SLP 1358 RED CARBON RESISTORS All resistors are rated 596 tolerance 1 6W and of carbon type unless otherwise noted R301 302 5 183620000 8308 R309 5240031420 8310 8311 5240029820 8312 8313 5240029820 8314 315 5240033020 228 1 4 Nonflammable 22 2 42 1006 312 3
99. The edit MASTER RECORDER receives signals from the STEREO OUTputs while a clean inter national dub mix minus narration and v o is being recorded from PGM OUTputs VIDEO PRODUCTION Clean Feed Dub 2 Voice Over Mics Cue Feed Studio IFB and PL Clean Feed Dub 1 99 GO F i NS q QO 2 Back Up Work Copy Audio oniy Stereo Cassette Ambience 000 O cox3caca Edit Master VCR WD lt gt lt gt Cart Machine Sound Effect Source VTR 2 Source VTR 1 41 CALIBRATING THE 300 SERIES MIXERS FOR RECORDING Calibrating the 300 Mixers is simply the process of matching the consoles outputs to the rest of the equipment being used In this example we will assume you are using a 4 track recorder The method we describe here can be used with virtually any type of equipment you are likely to encounter 1 The first step is to connect the appropriate PGM 1 4 OUTs from the 300 Mixer to the inputs of the recorder Remember the 300 Series have three different output configura tions unbalanced referenced to 10 using RCA type phono jacks balanced ferenced to 4dBm using XLR type con nectors and unbalanced referenced to 4 dBm using XLR type connec
100. USS 1 O PGM BUSS 2 OQ PGM BUSS 3 8615 22k PGM BUSS 4 0 Q 5601 R6I7 10k i o R618 10k 5601 2 R6I9 22k NE i 5601 3 o I R620 22k O I 1 4 R62 22k I O I i 8601 5 I R622 22k M AUX 4 E 60 560 6 J603 312 4 2 10 11 320 Page 4 10 11 312 Page 4 2 M 320 Page 4 3 E 11 4 17 POWER SUPPLY SECTION M 308 A SW CPOWER A 0 voee 0 OY MATES U S A CANADA B C NJMTBMISA 000 254126410 DOOI KBPC 0002 283181 0 0002 0005 WO3C D 72 0003 2541264 0 0004 0005 1058 NJM45600X 0006 wo2 0007 0008 25 1615 60 00075004 15513 0009 000 2541015 68 9912 902877101 0033 0014 25 1217 0 150529100 00 162920026 419823070 00 _ CAUSE ake E U K QOO Q002 9007 9004 9003 0004 0003 0001 0002 200 0006 D007 0002 0003 ASS ASS xX A TR PCB ASS ASS Y Y B TR PCB ASS Y A Aco H Moo Aqos j 15 TTT 1 mE Ls 29 sasa 2008 Ay pone NP 425v tA i aey 4 15 0 2 Hi SEW 000i
101. With the level at the PGM OUT 1 4jacksset to nominal level see paragraph 1 4 9 press the monitor ON switch situated in the TAPE RTN monitor control rack green LED lights By adjusting the RTN PAN and LEVEL pots Stereo Master Faders should be in the shaded area as set in paragraph 1 1 confirm that the STEREO OUT jacks provide nominal levels indicated in the table in paragraph 1 6 1942 LIWO 156 800007 Monitor ON switches 1 and 5 select the OUT 1 monitor ON switches 2 and 6 the PGM OUT 2 monitor ON switches 3 and 7 the PGM OUT 3 and monitor ON switches 4 and 8 the PGM OUT 4 2 TAPE RTN Select Switch Connect a 10 086 1 kHz signal to the IN jacks and confirm that the STEREO OUT source switches from OUT TAPE IN when the TAPE RTN select switch is depressed MASTER PCB assy 1 8 AUX 3 AUX 4 OUTPUTS 312 amp 320 ONLY AUX 3 is accessed from INs 1 4 while AUX 4 derives signals from INs 5 8 Press the select switches 1 4 set the respective AUX 3 send controls to max and confirm that nominal level is obtainable at the AUX 3 OUTPUT Check also the signal path from TAPE INs 5 8 to the AUX 4 OUTPUT With the AUX 3 amp 4 POST and monitor ON switches depressed post signals are sent to the AUX amp 4 OUTPUTS With the AUX 3 amp 4 SUM switches d
102. able in lengths from 6 inches to 20 feet or in color coded sets of 8 for fast channet or function identification 50 TASCAM cable 15 also available in 500 foot spools If TASCAM professional cables are not available in your area please try to find the next best cables really does make a difference in system performance M 308 SPECIFICATIONS MECHANICAL CHARACTERISTICS input Selector Fader Length Assign AUX Select Monitor Select Matrix Meter Select Switch Dimensions W x H x D Weight net MIC LINE 100 mm Odd 1 3 LJ Even 2 4 R AUX 1 Pre Equalizer Line AUX 2 AUX 1 Post Fader switchable Stereo Ext 1 Ext 2 Mono Effect Aux 1 2 1 4 1 4 TAPE 1 4 58 L R Stereo Ext 1 Ext 2 Mono Effect Aux 1 2 switchable 584 x 220 x 692 mm 23 x 8 11 16 x 274 4 21 kg 46 5 16 Ibs ELECTRICAL CHARACTERISTICS Mic Input Mic Impedance Input Impedance Nominal Input Level Minimum Input Level Maximum Input Level Attenuation Line Input Input Impedance Nominal Input Level Minimum Input Level Equalizer Type Frequency Boost Cut Channel Overload Indicator Channel Insertion Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Input Impedance Nominal Input Level Maximum Input Level 200 ohms to 600 ohms nominal 28 k ohms 60 1 mV 70 dBV 0 3 mV 32 dBV 40 V 342 dBm 40 V 30dB 16 k ohms
103. an eight track multitrack recorder The first step is to connect the four track to the mixer Since the 300 Series has 4 OUTputs the simplest method is to connect PGM OUT 1 to track 1 input of the recorder PGM OUT 2 to the track 2 input etc Next connect the four track outputs of the recorder to the TAPE IN jacks 1 4 found on the rear of the 300 Series Again the simplest way is to connect the corresponding numbers track 1 to TAPE IN 1 and so on Once these connec tions are complete you can proceed to calibrate your system see page 42 Since both the recording engineer and the in studio performers will need to hear the mix our example shows both a CONTROL ROOM monitor system and a STUDIO monitor system TO CONTROL ROOM SOUND SYSTEM STEREO MONITOR MSTR SELECT STUDIO RECORDING Performer s Cue System dur MH 40B Studio Monitor Playback System Control Room Monitor System Electronic Rhythm Synthesizer Track 1 20 0 000 Mono Synthesizer Track 1 O66 X es e eg e e OY GO oy aly wq 06 86 o Slo 3 OF 7 9 2 Master Recorder Electric Bass Track 1 12 0000000 gi Vocal Mics Back Up Track 4 8 2 L R Track 2 Track 4
104. atio DIN 20 Mic to Output 50 dB 55 dB 1 Line to PGM Output 96 d8 87 dB 20 Line to PGM Output 7398 7598 1 Line to Effect Aux Output 78 48 80 dB 1 Line to Stereo Output 84 dB B6 dB 1 Line to Mono Output 83 dB 85 dB 1 Line to Monitor Output 84 dB 86 dB 1 Line toSolo Output 86 dB 88 dB Total Harmonic Distortion THD 1 Input to t Output 0 025 20 Hz 20kHz EQ OUT 50 dB above nominal input level and MIC 304dB on with 30kHz L P F connected 1LineInputto 1 PGMOutput 0 02 20Hz 20kHz EQ OUT nominal input level with 30 kHz connected intermodulation Distortion SMPTE Method 1 Mic Input to 1 PGM Output 0 06 EQ OUT 50 dB above nominal input level and MIC ATT 30 dB on 1Linelnputto 1 PGMOutput 0 045 EQ OUT nominal input level Frequency Response Mic Input to PGM Output 20 30 kHz 98 Line Input to Any Output 20 30kHz ng Cross Telk At 1 kHz Better than70dB At 18kHz Better than 60 dB In these specifications 0 dBV is referenced to 1 0 Volt 0080 and d m are referenced to 0 775 Volt Actual voltage levels are also given in parenthesis 0 316 Volt for 10 dBV is rounded of and given as 0 3 Volt and 0 775 Volt for 0 dBu as 0 78 Volt Changes in specifications and features may be made without notice or obligation VOLTAGE CONVERSION This mixer is adjusted to operate on the electric voltage specified on the packing carton Note This voltage
105. ch Rack 2 EXT I 2 SOLO Buss es s FL Indicator SOLO Buss Assign Buttons Channal ON indicator egs SZ IL e IL T s ZZ AALS S p A 554 gt zy O laster L ion ais use 9 0 7 STERI To Meters L amp R Nw MONITOR MR EFFECT LD ux i METER Switch Rack S Channel D OUT 10 dBV 77 22 2 2 6 PGM Busses STEREO Busses 9 OUT 1 CD 10 6 SOLO Buss EFFECT OUT 0 dBu 10 JBV AUX 1 OUT 0 10 dBV AUX 2 OUT 0 dBu 10 3BV STEREO QUT L 4 48 10 x2 STEREO OUT A 4 dBm 10 x2 MONO 4 dBm 0 dBu MONitor OUTPUT L 0 dBu 10 dBV MONitor OUTPUT R 9 10 7 Headphones 6 SOLO OUTPUT 10 Understanding what s going on inside your equipment will help improve your sound This manual as a reference book You may not need to know all of what is here to begin and it is certainly not necessary to memorize it but do try to find the time to read it thoroughly at least once That way you will be familiar with the contents and if you need answers to any questions or solutions to problems you will know where to turn Good luck with your sound INTRODUCTION The TASCAM 300 Series
106. channel is tumed off The signal is sent to the SOLO buss Next to the PFL switch a LED indicator which lights when the function is in use OL OverLoad Indicator f excessive signal levels are present in the cnan nel the OL LED will light The overload detec tion circuit is designed to monitor the signal ZR and to fire the LED whenever signals of 15 dB KE dB prior distortion are detected 0 Our c9 Direct OUT put Jack Located on the rear panel directly below the INSERT jack the Direct OUTput provides access to the channel signal in its final form The signal present is derived post fader pre channel ON allowing the channel signal to be taken out of the mixer for processing to make up additional poast fader mixes or to feed a one mic per track signal to the recorder Channel The Channel Fader determines the final signal level sent to the various post fader derived cir cuits The 100 mm linear design provides fast visual reference to the overall channel level relative to other channels while the gradient scale markings provide accurate relative level indication The Faders are individually mounted for easy service Additionally the mounting screw spacing is standard allowing in field replacement with after market units if desired TI Solo PF L AFL Signal Routes INPUT PCB ASS Y 312 CHANNEL 1712 M 320 CHANNEL 17 20 wat
107. ches SOLO Level Control and Indicator The SOLO BUSS receives signal from the channel PFL switches from the program AF L switches and EFFECT RTN PFL switches The LEVEL control allows the signal to be adjusted to the desired level Below the control is the SOLO indicator This large red lamp lights whenever any PFL or AFL switch is pressed This indi cates 1 A signal is present in the buss and 2 The MONITOR and HEADPHONE circuits are switched from their normal signal as deter mined by the switch and are receiving instead signal from the SOLO circuit This one switch automatic switching logic allows fast easy changes in the monitor signal and is very useful during complex mixing sessions EXT SOLO This 1 4 Stereo Phone jack provides external access to the SOLO Buss and the Solo Control signal line This connector when combined with the SOLO OUTPUT jack of another 300 series mixer allows the two SOLO systems to be combined This is a valuable tool when assembling various pieces of equipment for studio production work For this connect the first mixer s SOLO OUT PUT and EXT SOLO to the second mixer s EXT SOLO SOLO OUTPUT Jack This RCA Phono connector provides a SOLO Buss output from the mixer It is essential when two mixers are to be cascaded patched together to work as one larger mixer Combining the two SOLO systems 2nd Mixer To EXT SOLO pamm 715010 Control Sig
108. ck When the recording is complete rewind the tape and play it back through the control room speaker system You don t have to change any control settings to do this You should hear exactly the same mix as while you were recording If playback is also desired on the STUDIO speaker system raise the MONO MASTER FADER When finished remember to lower the MONO MASTER FADER Once you are satisfied with first track you can continue to build the tape one track at a time This technique is known as overdubbing Over dubbing is the process of adding new material to one track of tape in time with a previously recorded track Again for example track 2 could be the lead guitar and the left hand side of the stereo synthesizer track 3 the lead vocals and track 4 could contain the right side STEREO section and the background vocals Keep in mind as each track is recorded the previous tracks can be sent to the cue system for re ference by selecting the LINE input to AUX 1 of the appropriate channels After every pass play back the newly recorded material first alone then together with the previous tracks This will allow you to hear if any audio or acoustical problems are emerging such as improper tuning voicing timing errors etc If problems are found correct the cause and re record the track While certain tonal characteristics can be equalized and adjusted later many problems are impossible to fix in the mix Eight Track Recordin
109. conversion is not possible on models sold in the U S A and Canada U K Australia or Europe For general export units if it is necessary to change the voltage requirements of this mixer to match your area use the following procedures ALWAYS DISCONNECT POWER LINE CORD BEFORE MAKING THESE CHANGES 60 gt m Turn the mixer upside down on soft surface Remove screws two and B quantity of B differs among models Remove the panel Locate the voltage selector plug near the transformer inside the unit Pull out the plug and reinsert it so that the desired voltage can be read through the cut out window of the plug Replace the panel 61 M 308 BLOCK DIAGRAM INPUT PCB ASS Y 1 CHANNEL 1 1 9 0 e EM 4 966 Ou 0779 9 2 OPERATIONAL LEVEL 7 r INVERTING amp LEO VU METER NON Vwit PEAR LOY METER PCB ASSY T l uil i e TJ e e emae 0 0 4 i i ja LP I L 64 M 312 M 320 BLOCK DIAGRAM 1 INPUT PCB ASS Y 312 CHANNEL 14212 M 320 CHANNEL 14 20 1 OBV 048 v 0 775 2 DPERATIONAL LEVEL iOd8V 3 INPU
110. ctrics but far more resistant to extreme cold or heat and it doesn t let the center strands migrate It also avoids the possibility of shearing the center conductor when the cable is crushed so the cable does not suddenly fail Rather than loosely braided shield or spiral wrapped shield that can open up we use bare copper braided shield with 97 coverage This excludes electrostatic noise buzz and RFI CB interference etc We also use a 7 strand center conductor 4 pure copper strands for minimum resistance and 3 copper weld stainless steel strands for strength The multiple strands increase flexibility and strength while offering less resistance at ultra high frequencies due to increased surface area for the skin effect This improves transient response The outer PVC insulating jacket resists abrasion and is tightly fitted to the shield so it will not elongate The connectors are special too Their nickel plated brass center pins are a bit longer than most to establish good contact in all RCA jacks The cadmium plated steel outer shell includes a gentle ridge which burnishes the mating jack when the connector is twisted to ensure good contact For maximum RF shield ing the braid is terminated inside the shell and 2 radian soldered not just spot soldered for maximum strength The plugs are clad with an oval jacket of molded plastic to further in crease strength and make the ends easier to handle TASCAM cable is avail
111. d as an Bx2 submix of external signals or as a submix of up to eight various external and internal signals On the M 312 and M 320 the two additional AUX systems also provide extra mixing capability as each can be used separately or summed to a mono configuration The only limiting factors are the number of input choices and output configurations All these submix systems are interconnected and configured so as to provide tremendous programability making the 300 Series incredibly powerful mixing consoles FEATURES AND FUNCTIONS INPUT CHANNEL SECTION INput Connector This is a three pin XLR type connector for use with balanced signals with an impedance of from 50 to 600 ohms While the connector is identified as a MIC input in actuality it can be used for balanced LINE LEVEL signal as well By using the TRIM and 30 dB Pad Switch the MIC INput Connector can accept balanced line level signals of 28 dBm 19 5 V LINE INput This 1 4 Phone jack is provided for use with unbalanced LINE LEVEL signals with a source impedance of 10 k ohms or less or RETURN INput Channels 1 8 ONLY These RCA type phono jacks NOT located with the rest of the channel input connectors but can be found near the PGM OUTputs Signals from these jacks are internally routed to channels 1 8 for remix and talent cues To the monitor system for contrd room monitoring of 4 or 8 track recorders without having to change t
112. d tone 14 Play the tape The four PGM meters on the 300 Mixer should read O VU This allows you to verify the accuracy of the preceeding steps Since you will also need to calibrate your system when remixing down to a stereo master tape we will describe this process as well Continuing with the steps detailed above proceed as follows 15 Set the LEVEL and PAN controls on MONI TOR sections 1 4 to 12 o clock position 16 Raise the STEREO LEFT and RIGHT MASTER FADERS to the shaded area about 7 8 on the fader scale 17 Press STEREO on the METER SELECT SWITCH RACK 18 Repeat steps 14 and 15 above Since we ve already verified the returning levels here we are focusing only on the readings of the STEREO VU meters 19 The STEREO METERS should read 0 VU If the readings are too low adjust the four MONITOR LEVEL controls slightly higher If the meters are too high adjust the levels down ward slightly A handy tip for making this adjustment faster and simpler turn two of the MONITOR PAN controls fully left and the other two fully right then make the necessary level adjustments When all four PANS are returned to the center position the meter readings should remain at O Test Tone Source VU Meters 42 2 D A ed f e e e e fo NE LINE OUT 1 4 5 10 4 5 3210154 201 TED LED 41111 0
113. dance Nominal Input Level Maximum Input Level Mono Insertion Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Input Impedance Nominal Input Level Maximum Input Level External Input Input Impedance Nominal Input Level Maximum Input Level Stereo Output XLR Type Output Impedance Minimum Load Impedance Nominal Load Impedsnca Nominal Output Level Maximum Output Level RCA Output Impedane Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Mono Output XLR Type Output impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level 490 ohms 2 k ohms 10 k ohms 10 d amp V 0 3 V 10 dBV 3 1 V 3 5 k ohms 0 dBu 078 V 10 dBu 0 25 V 12 k ohms 10 d8V 0 3 V 2048 01 V 100 ohms 2 k ohms 10 k ohms 10dBV 03 V 18 8 V 7 k ohms 10 dBV 0 3 V 11 dBV 3 5 V 100ohms 2 k ohms 10 k ohms 10d8V 03 V 18dBV 8 V 6 k ohms 10 d8V 0 3 V 11 dBV 35 V Bkohms 10 dBV 03 V 18 d8V BV 20 ohms 200 ohms 600 ohms 4d8m 1 25 V 26 dBm 14 V Balanced 20dBm B V Unbelsnced 100 ohms 2 k ohms 10 k ohms 10 48 0 3 V 18 dBV 8 V 20 ohms 200 ohms 600 ohms 4 dBm 125 V Maximum OutputLevel 14 Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Talkback Mic Input Input Imp
114. do not indicate 0 VU adjust VRs with a slot blade screwdriver inserted into an access hole located above each meter MON OUT L amp R 0 dBu 1 4 phone jacks 10 dBV at RCA phono jacks Headphone output 8 ohm impedance Max level 1 5 W 1 5 W 1 3 PEAK LEDS Peak LEDs are preset to light at 11 VU and extinguish at 8 5 VU Increase the input level by 11 dB from 10 dB V to 1dBV without altering the settings in paragraph 1 1 and check to see that the peak LEDs light at a 11 VU reading INPUT ASS Y 312 CHANNEL 1 12 M 320 CHANNEL TN 7 xry lt ww ww xor R taedis 0 gt LM A lod ANO MA LIE R um ri MC X E ENCEINTE nc e dms Cie zai ed ala Wa tas uf e qa aa m e at m SL 1 4 CHANNEL FADERS AND POTS Input Channel Sections of the 300 Series Mixers are all identical TAPE INs 1 8 are internally connected to LINE INs 1 8 and disconnected when 1 4 phone plugs are inserted to LINE INs 1 Channel Faders INSERT D OUT Connect a 10 dBV 1 kHz signal to the channel INSERT jacks and set the channel faders for a 10d8V reading at D OUT Confirm that se
115. dual sound and timing Setting the EFFECTS SEND and RETURN levels is similar to the preceeding procedure There are however several important dif ferences 1 Setting the output and return levels is more a matter of taste 2 Setting and balancing the out going signal to the effect device is required mixing and balancing the returning or wet signal with the existing or dry signal within the console In the diagram shown on page 32 our example shows a typical reverb unit patched from the EFF OUTPUT and back into the EFFECT RTN 1 Using a single mic input set the channel EFFECT send control to about 12 o clock Next press the EFFECT MONO switch onthe METER SWITCH RACK Watching the STEREO LEFT VU meter raise the EFFECT MASTER control until the meter reads about 10 At this point our instructions must move from the science of mixing audio to the art of technique Setting the return level can be done by either head phone monitoring or by listening to the signal through the house speaker system The on board controls used are the EFFECT RETURN 1 LEVEL and PAN The LEVEL determines the ratio of returning wet signals to the exist ing dry signals The PAN sets the left to right balance of the wet signal As we can only il lustrate a typical example of this type of ap plication we can only tell you which controls perform pertinent functions Since many external signal processing devices contain their own inp
116. e EQ ON switch If EQ is desired begin by determining which band requires alteration Sometimes more than one portion of a single signal requires changing thus it is possible to boost or cut all three sections ofthe equalizer Usually however only one band will need to be adjusted Keep in mind there are two ways to alter the tonality of a signal using EQ One is to adjust the specific controls which affect the desired frequency range The second way involves making the opposite adjustment to the other portions of the signal For example if a vocal signal is a little too bass heavy or boomy one way to correct the problem is to reduce the low frequency con tent This is the direct method The second method provides the same end result but is in direct by increasing the amount of mid and high frequency signal content the boominess may come in handy on those occasions where the direct approach doesn t yield the desired 44 results Once you have determined that 1 the signal does require EQ and 2 the proper frequency range has been identified the final steps involve turning the proper controls Sounds simple doesn t it But if the proper range is either low or mid range there are two controls to adjust so how will you adjust the FREQUENCY control correctly The technique is actually rather simple first adjust the GAIN control of the band so there is an exagerated amount of boost or cut then slowly sweep the
117. e track at a time we can actually record more information overall than if we recorded all four at once The first track to be recorded is the basic rhythm track consisting of the electronic rhythm synthesizer LINE IN Channel 4 mono synthesizer LINE IN Channel 1 and the bass LINE IN Channel B Assign channels 1 4 8 to PGM buss 1 Track 1 Set the PAN control all the way to the left Using the techniques described in the preceeding section set and balance the signal levels Now we can begin to set up the studio cue feed so the performers can hear each other and play in time with the other instruments The cue mix is created in the same way the stage monitor mix was done in the previous section Since in this mix only the bass and synth players need to hear the rhythm signal use the AUX 1 send on 38 the electronic rhythm input channel This feeds the headphone amp used in the previously detailed cue system To create your control room monitor mix which will probably be different from the cue mix simply press the TAPE RTN switch on MONITOR section 1 set the LEVEL and PAN controls and the STEREO L and R FADERS Select STEREO on MONITOR SWITCH RACK and set LEVEL CONTROL for a comfortable listening level This allows you to 1 Hear the signal as it s actually being recorded and 2 Verify the signal continuity to and from the mixing console and the recorder Once these steps are complete you can record the tra
118. edance Mic Impedance Nominal Input Level Minimum Input Level Maximum Input Level Monitor Output 14 Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level RCA Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Solo Input Input Impedance Nominal Input Level Maximum Input Level Solo Output Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Headphone Output Load Impedance fizximum Output Level deer Peak Indicator Level Attenuation 1 kHz Requirements US A CANADA Europe UK Australia General Export 25 dBm 14 V Balanced 20dBm BV Unbalanced 20 ohms 2k ohms 10 kohms 0 dBu 0 78 V 20 dBu 8 V 9 k ohms 200 to 600 ohms 50 dBV 3 mV 60 dBV 1 mV 9 dBV 2 8 V 22 ohms 2k ohms 10 k ohms 0 dBu 0 78 V 20 080 8V 490 ohms 2k ohms 10 ohms 10 dBV 0 3V 10 31 V 22k ohms 10 dBV 0 3 V 18 dBV 8 V 100 ohms 2 k ohms 10 k ohms 10d8V 0 3 V 18 dBV BV ohms stereophones 1 5W41 5W 6 VU Type 10 dB above nominel output level 8048 120 V AC 60 Hz 75W 220 V AC 50 Hz 75 W 240 V AC 50 Hz 75 W 100 120 220 240 V AC 50 60 Hz 75 W PERFORMANCE CHARACTERISTICS Equivalent Input Noise DIN Audio A Wid 150 ohm source 130dB 132dB Signal to Noise R
119. epressed the AUX 3 amp 4 send signals are summed to gether This mono mix is available at both the AUX 3 amp 4 OUTPUT jacks 1 9 TALKBACK SYSTEM 312 amp 320 ONLY Apply a 50 dBV signal to the talkback mic XLR connector Select output buss es on the Talkback Assign Switch Rack Press the T B switch and by increasing the TALKBACK LEVEL control setting confirm that the signal connected is available at the selected output jack s When assigned to the STEREO OUT busses the signal is available at both the STEREO OUT L amp R jacks Jesse M IR ac DESE REE SPITS 15 1 x t ey Qa Q b tsoa 6 1 10 FREQUENCY RESPONSE Set the input and output levels to nominal as in previous paragraphs and connect an oscillator to the input jack and a wide range more than 100 kHz level meter to the output jack Frequency response ranges are as follows MIC IN gt OUT 20 Hz 30 kHz 21 dB Other Inputs gt Other Outputs 20 Hz 30 kHz dB 1 11 T H D T H D is also measured with the input and out put levels set to nominal as previously described Connect a low distortion oscillator to the input jack and a 30 kHz L P F and a distortion meter to the output jack Set the oscillator output to 1 kHz and read the distortion meter Specs are as follows 1MIC IN gt OUT 0 025 or less 1 LI
120. fic points of the signal path of the 300 Series Mixers Its tip ring sleeve plug connects to the INSERT jack while its Y ed end accommodates connection to the input and output terminals of the out board equipment being used Available in two lengths 2 m PW 2Y and 4 m PW 4Y The PB 64 Patch Bay 482 19 When your system begins to expand beyond the basic sorting out where things go can take much time away from the recording process This accessory will allow you to speed things up and get back to what you really want to do Sixty four RCA pins on a panel So you can bring all those jacks to where you are It will get you off the floor and back to recording Connect all your inputs and outputs to the back and you can reroute your signals with short jumpers quickly 465mm 18 5 16 354 mm 13 15 16 x 32mm 1 1 4 qi 47 1 7 8 R 290 mm 11 7 16 TASCAM PB 32 Series Patch Bays Model PB 32P The PB 32 Series Patch Bays are ideal for any application in multitack recording process They are available in four basic configurations and can be mounted in 19 EtA rack They also feature normalled connections to provide the maximum in patching convenience without the need to patch through unused circuits 48 Specifications Number of circuits 16 Type of jacks RCA jacks and or 1 4 phone jacks Front jacks with switches white Rear jac
121. g Before we discuss the mixdown procedure this is an appropriate place to discuss another aspect of the 300 Series flexibility By this time you should be familiar with the eight 8 outputs labelled PGM OUT and eight 8 inputs labelled TAPE IN 1 8 This would indicate that the 300 Series can perform eight track recording and mixdown which indeed they can Since the 300 Series is a four buss design each buss supplies signal to a pair of PGM RCA type outputs Each pair 15 controlled by a single fader and the signal is identical at either jack The pairs are grouped as follows PGM 1 out puts 1 and 5 PGM 2 outputs 2 and 6 PGM 3 outputs 3 and 7 and PGM 4 outputs 4 and 8 By connecting an 8 track recorder in place of the 4 track deck as we have described the track building process could be continued until all 8 tracks are recorded Mixdown Procedure Once the multitrack master tape ha been com pleted the next step is to mix it down to a standard two track stereo format The procedure is similar to the recording process however there is usually no need for the studio musicians to be present unless overdubbing is going to occur The only additional equipment required is a two track mastering recorder and any auxiliary effects devices you feel may be needed The basic hookup is straightforward the STEREO LEFT and RIGHT OUTPUTS are connected to the inputs of the 2 track while the machine s output are connected to
122. generate line levels usually provide an output level control This external control must be properly adiusted to prevent overload of the LINE INput When all the various channel levels have been set and the channels assigned the final PGM and STEREO levels can be determined In our example we have assigned several signals to the four PGM GROUPS and others directly to the LEFT and RIGHT STEREO MASTERS The obvious questions arising from these actions are Why use the PGM GROUPS and How is a PGM GROUP signal mixed to the STEREO MASTERS First let s look at the assignments We ve assigned different instruments or voices which perform similar musical tasks to the same groups As an example the two background vocal mics are assigned to PGM 1 This allows the operator to control the final level of both mics with only one fader In other instances such as the lead or main vocal mic the signal is sent directly to the STEREO MASTERS bypassing the PGM GROUPS This allows the signal to be varied in the final mix without disturbing any other signal This method of mixing reduces the complexity of the mix while still allowing full creative control Adding the PGM GROUP signals to the STEREO mix is relatively simple Above each GROUP FADER there are two identical yet separate MONITOR sections Each section is numbered 1 8 and contains an input select switch TAPE RTN a LEVEL control a PAN control and an ON switch On the M 312 and M
123. h to the off position 8 OL OverLoad Indicator MIC IN gt INSERT Send Contact With TRIM MIC set as in paragraph 1 4 6 increase the MIC IN level and confirm that the OL indicator turns on at 17 dBV at the IN SERT Send Contact and turns off at 13 dBV T Tip send signal Ring receive signal S Sleeve ground 9 Channel Assign Switches and PAN Controls MIC IN gt PGM OUT 1 4 STEREO OUT PUT L amp R Checking the PGM OUTs 1 4 and STEREO OUTPUTs L amp R should be performed with the MIC IN circuits set as in paragraph 1 4 6 Confirm that nominal output levels are obtained RT BG mw 4dBm at XLR connectors 10dBV at RCA phono jacks when PAN is turned fully left assignment to ODD PGM STEREO L busses and fully right assignment to EVEN PGM STEREO R busses Also confirm that the read ings decrease 1 5 3 5 dB from nominal level when PAN is set to the center position 1 5 MON itor OUT L amp R With the output level at STEREO OUT L amp R EXT IN 1 amp 2 MONO OUT EFFECT OUT PUT AUX OUTPUT 1 4 AUX 3 4 312 and 320 only set as in paragraph 1 1 confirm that each of those output signals appears at the MON OUT jacks when the relative MON select switches are pressed Use the MONITOR level control for a 0 dBu reading at 1 4 phone jacks and 10 dBV at RCA phono jacks When the PFL and AFL switches are depressed the monito
124. h two independent EFFECTS RETURN networks Each is identical in both features and function EFFECT RTN These two 1 4 Phone jacks provide the ability to bring external line level signals into the STEREO BUSSES The signals may be from effects devices such as echoes or reverbs or may be independent signals generated elsewhere EFFECT RTN LEVEL Control The LEVEL control allows the returning signal to be adjusted thus providing the ability to match existing signal levels EFFECT RTN PAN Control The EFFECT RTN PAN determines the left to right balance of the returning signal sent to the L amp R STEREO BUSSES EFFECT RTN PFL Switch When pressed the EFFECT signal is taken off before the action of the EFFECT RTN LEVEL control and delivered to the SOLO buss An LED indicator next to the PFL switch lights when the func is in use STEREO AND MONO MASTER SECTIONS in the preceeding sections some of the sub systems eventually send the processed signals to the STEREO BUSSES These busses in turn deliver the combined signals to the STEREO MASTERS 171700 00 Master Faders left and right MASTER FADERS 00 mm units designed to provide accurate MONO Master Fader This control receives its signal from both the LEFT and RIGHT MASTER FADERS This summed signal provides the user the ability to create monaural masters from stereo masters or to create both simultaneously Like the other FADERS t
125. hable 992 x 220 x 692 mm 39 1 16 x 8 11 16 x 271 4 36 kg 79 6 16 Ibs ELECTRICAL CHARACTERISTICS Mic Input Mic Input Impedance Nominal Input Lavel Minimum Input Level Maximum Input Level Attenuation Line Input Input Impedance Nominai Input Level Minimum Input Level Equalizar Type Frequency Boost Cut Channal Overload Indicator Channel Insertion Output Impedane Minimum Load Impedance Nominal Load Impedance Nominal Output Level 200 ohms to 600 ohms nominal 2 8k ohms amp 0dBV 1 mV 70 dBV 0 3 mV 32 dBV 40 V 342 dBm 40 V 3098 16 k ohms 1 0 3 V 20 dBV 0 1 V Shelving High Sweepable Middia Low 10 kHz High 200 4 kHz Middle 50 1 kHz Low 112 dB High 115d8 Middle Low Set to light at 25 dB above nominal 100 ohms 2 k ohms 10 kohms 10 dBV 0 3 V Maximum Output Level 18dBV 8 V Input Impedence 5k ohms Nominal Input Level 10dBV 0 3 V Maximum Input Level 11 dBV 3 5 V OirectOutput Output Impedance 100 ohms Minimum Load Impedance 2 ohms Nominal Load Impedance 10k ohms Nominal Output Level 10dBV 0 3 V Maximum Output Level 16 dBV BV Buss Sub Input PGM STEREO EFFECT AUX Input Impedance 22 k ohms Nominal Input Level 10 0 3 V Maximum Input Level 18dBV 8 V PGM Insertion Output Impedane 100 ohms Minimum Load Impedance 2k ohms Nominal Load Impedance 10k ohms Nominal Output Level 10 dBV 0 3V
126. hannel faders are set too low while the group faders are wide open the signal won t be distorted but it will pro bably be excessively noisy This second illustra tion shows this type of error Ideally the faders should all be set in about the same relative positions Obviously there will always be situations and signals which cannot be set to our ideal positions so reasonable compromises in the various control settings are not uncommon ACCESSORIES FOR THE 300 SERIES MIXERS MC 701G Gooseneck Microphone MH 40B Headphone Amplifier m 5 We HEA UST i ye 4 The MH 40B is headphone distribution ampli fier that can be used to feed four sets of studio cue headphones and can be mounted in a 19 EIA rack aqa 7 2 23 Fader Link Knobs CCE 2 23 is used to link pairs of faders to gether providing the easiest and most consistent way to accomplish cross fades One set includes six 6 knobs 7016 5 moving coil dynamic phone with unidirectional pattern Originally designed for use as a high quality talkback mic to be plugged into the TASCAM 300 Series Mixers the MC 701G can also be used as a general purpose panel jack plug in microphone PW 2Y PW 4Y Insertion Cable The TASCAM PW 2Y PW 4Y is a connecting cable that allows signal processing such as a graphic equalizer to be inserted at speci
127. he MONO MASTER is a 100 mm design INSERTion Jack Stereo and MONO Masters As with the other INSERTion jacks found in the channels and program masters these jacks provide the ability to alter the signal with external devices such as equalizers limiters etc The access points are POST FADER STEREO and MONO OUTputs XLR amp RCA PHONO The XLR connectors provide an output level of 4dBm from both the LEFT and RIGHT stereo BUSSES and the MONO BUSS Each connector is paited with a two position slide switch which allows the selection of either a balanced or unbalanced configuration of the signal The RCA jacks provide the same signals but at a lower level 10 dB The signal at the MONO OUT XLR connector is also available at the OUTPUT MONO 1 4 Phone jack MONITOR SECTION The MONITOR system in the 300 Series is very comprehensive allowing the operator to select and hear virtually any signal or combination of signals found in the console MONitor Select Switches This switch rack allows selection of either seven M 308 or nine M 312 amp M 320 se parate signal sources or busses In addition where the selection is a left right pair such as the STEREO busses the separation is main tained throughout the MONITOR This allows in place monitoring of critical material The selections are STEREO EXTernal 1 EXT ernal 2 both are left right pairs MONO AUX 1 AUX 2 and EFFECT Additionally AUX 3 and
128. he controls or setting of the input channels See page 29 for Tape Return Signal Routes LINE Switch This switch determines the signal to be routed through the input channels In the up position mic the signal from the XLR is selected In the LINE or down position the signal in the channel will be either the signal from the LINE IN connector or the TAPE INs on inputs 1 8 ONLY The tape signal is automatically available if no signal is plugged into the 1 4 LINE INput jack Pad Switch The pad switch allows the addition of 30 dB resistive pad to the channels MIC input level This is provided for use and control of either extremely high mic signals or when the XLR is used with balanced line level signals OTRIM This dual concentric control is used in conjunc tion with the OL OverLoad Indicator TRIM will reduce the level of those input signals which would otherwise overload the channel s elec tronics Each channel has a MIC TRIM and a 14 1 5 6 INSERT 4 7 s s 8 UX f 9 LINE e 1 UX 2 ran Gr INSERT PGM OUT LINE to avoid having to reset the TRIM and or Fader when switching between INput and LINE INput TRIM Upper Knob This control provides variable attenuation for signals from the XLR connector If addi tional signal reduction is needed for extreme LINE IN Signal Routes 2
129. heir inclusion is to allow signals sent from the EFFECTs send outputs to be modified by the chosen external device then brought back to the MAIN MIX system The EFFECTs RETURNSs receive their signals from the EFFECTs RETURN inputs Each of the jacks feeds signal to a separate LEVEL control From here the signals are distributed through the PAN controls and sent to the STEREO LEFT and RIGHT BUSSES The EFFECTs RETURN system is dedicated its signals always go to the MAIN MIX STEREO LEFT and RIGHT BUSSES Monitor System The MONITOR submix system is an independent 8 input 2 output mixing system which can receive its inputs from either the PGM GROUPS or the TAPE RETURNS or a combination of the two The MONITOR system is a necessary sub 12 system for multi track recording as it allows various signals to be heard or monitored during the actual recording process Since these signals can be live prerecorded or in combination the engineer can use the MONITOR to aid in making critical artistic decisions regarding the final mix There are two horizontal rowsof four MONITOR sections located above the PGM GROUP FADERS each GROUP contains two MONI TOR sections The upper row contains sections 1 2 3 and 4 while the lower row sections 5 6 7 and 8 Each section consists of TAPE RTN source switch a LEVE L control a PAN control and an ON switch The TAPE RTN switch determines the signal source of the individual MONITOR secti
130. ing the method shown best results will occur when the external device generating the signal has an output level control because the SUB IN jacks have no provision for control ling the incoming level If on board control of the external signals is necessary there are several other methods which can be used 1 Signals be added through the EFFECTS RETURN sections Each of the two networks is identical but independent and consists of a LEVEL and a PAN control The signal can be controlled balanced then added to the LEFT and RIGHT STEREO busses This allows the signal to be controlled independently from the PGM GROUPS 2 On all 300 Series mixers the AUX 1 and AUX 2 channel send controls are assignable either to the channel signal path or directly to the LINE INput a given channel is used to 34 process a MIC signal a separate LINE signal can be connected to that channels LINE INput and routed to either AUX 1 or AUX 1 amp 2 by pressing the AUX LINE switch and de selecting the AUX POST switch The external signal is now controlled by the selected channel AUX send and MASTER controls and is avail able at the AUX 1 or AUX 1 amp 2 outputs This can then be patched back into the mixer through the appropriate SUB IN jack for in clusion into the final STEREO mix 3 Extra signals can also be added using the eight 8 TAPE IN jacks As explained previously these provide signal to the corresponding MONI TOR sections
131. jobs that onlv brute force will fix A WORD OF MIXING ADVICE All finished mixes must be balanced each individual signal and its contents judged by how well it blends and augments the other signals Don t rely on EQ to create the perfect in dividual sound because the minute you add your perfect sound back into the remaining mix the signals tone may not be so perfect Always try to make the mix as near to ideal as possible before beginning the equalization process The results will be superior to those mixes which rely heavily on extreme EQ settings Also keep in mind the important relationships between the input TRIM controls and the chan nel faders as well as the relationship between the channel and GROUP faders the TRIM is too low the channel fader may have to be set too high This can result in poor signal to noise performance on the other hand the TRIM is too high the result may be reduction of headroom and possibly distortion Try to always balance the TRIM and channel fader levels so the desired sound is obtained when the fader is setting at or near the shaded portion of the fader scale 7 to 8 46 The relationship between the channel and group faders is equally important If the channel faders are all the way up as shown below while the group faders are set much lower you are pro bably overdriving the output stages causing reduced headroom and distortion Conversely if the c
132. ks without switches red Dimensions 482 x 44 x 75 W x H x D 19 x 1 3 4 x 3 Weight 1 3 2 14 16 165 Model name Type of jacks Internal circuit connection FRONT REAR 1 4 phone jack 32 front and RCA jack front and rear 1 4 phone jack front RCA jack rear Upper 1 4 phone jack leftmost 12 jacks front and rear Lower Rightmost 20 jacks same as PB 32R Upper RCA jack rightmost 20 jacks front and rear External Dimensions 482 mm 19 432 mm 027 0000000000000000 000060600000000060200 xu 11866 75 mm 13 p 0 D 2mm 1 16 1 4 phone jacks 1 7 mm 1 4 RCA jacks D 49 TASCAM Cables Cable because of its inherent capacitance and resistance is an active component in an audio system There are vast differences in cable design and performance that have significant effect the sound quality you ll get from your equipment TASCAM Professional Audio Cables are the best available Our cables feature very low capacitance under 15 picofarads foot so they don t act as low pass filters and roll off high frequencies The capaci tance is also consistent it doesn t change when the cable is bent or compressed You don t get noise or degraded results when the cable has been used a while Our 5 long term stability is provided by special insulator that is as flexible as foam core diele
133. l RCA Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Mono Output XLR Type Output Minimum Load Nominal Load Impedance Nominal Output Level 55 490ohms 2 k ohms 10 k ohms 10 03 V 10 dBV 3 1 V 35 k ohms 0 dBu 0 78 V 10 dBu 0 25 V 12 k ohms 10 dBV 0 3 V 20 dBV 01 V 100 ohms 2 k ohms 10 k ohms 10dBV 0 3 V 18 8 V 7 k ohms 10 dBV 0 3 V 11 dBV 3 5 V 100 ohms 2 k ohms 10k ohms 10 dBV 03 V 1B dBV 8 V 6 k ohms 10 dBV 0 3 V 1118 3 5 V 8k ohms 10 dBV 0 3V 18 dBV 8 V 20ohms 200 600 ohms 4 dBm 1 25 V 25 dBm 14 V 20dBm 8 V Unbalanced 100 ohms 2 k ohms 10k ohm 10dBV 0 3 V 18dBV 8 V 20 ohms 200ohms 600 ohms 4 dBm 1 25 V Maximum Output Lavel 1 4 Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Talkback Mic Input Input impedance Mic Impedance Nominal Input Level Minimum Input Level Maximum Input Level Monitor Output 15 Output Impadance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Solo Input Input Impedance Nominal Input Level Maxim
134. ltiple signals from the channels can be mixed together either in the PGM GROUPS or in the STEREO MASTERS resulting in the finished mix Auxiliary and Effects Submix Systems On the channel strips are three controls marked AUX 1 AUX 2 and EFF ects These represent three separate submix systems all of which can perform various tasks Think of these three sub systems as additional mixers their respective titles are for identification purposes These are handy for performing mixing duties separately from the MAIN MIX although in some cases they derive their input from the channel itself The AUX 1 SUBMIX system derives its signals from either the channel strip in which it resides or from the corresponding LINE INput con nector On the first eight inputs if the LINE INput is not used the corresponding TAPE IN jack is automatically connected to the LINE IN put circuit The AUX 1 input source is de termined by the LINE switch located next to the AUX 1 control This determines whether the AUX 1 system input is taken from the LINE IN put connector or from the channel The AUX systems are independent of the channel or main mix system Their input source choices are the same but their actual source selection may be different If the channel signal is selected the signal is taken post after the EQ If LINE is chosen the LINE INput signal is sent to the AUX 1 control bypassing the channel controls even if the same signal is selec
135. mper provided to enable the channel signal to be derived ahead of or pre EQ Once the LINE switch has been set the signal flows to the AUX 1 control and to the POST switch This switch offers the choice of either the signal selected by the LINE switch or a signal taken from the channel after post the FADER and ON switch The signal selected here is sent to AUX 2 Thus by using these two switches AUX 1 can be LINE CHANNEL pre EQ or CHANNEL post EQ while AUX 2 can be the same as AUX 1 or can be CHANNEL post FADER a Pre Pre fader signal is taken from the channel before the fader so it is not affected by the channel s fader setting making it useful for stable Cue mixes b Post Post fader signal is taken from the channel at a point right after the ON switch Because post fader signals are subject to any change in the channel s fader setting they are usually preferred for effects or echo mixes c LINE Tape Input Channel 1 8 Only Selects the TAPE Return Input if no con nector is connected to the LINE INput terminal It is the preferred signal to set up 16 the performer s Cue mix for overdubbing which requires the ability to combine the already recorded tracks with the new material By monitoring the recorders outputs while in the Sync mode you will have both the new and pre recorded material available for independent Cue mix When checking the overdub the Cue system will now be fed all of
136. o Master Sections 43 Stereo Master Faders 26 44 MONO Master Fader 26 45 INSERTion Jack Stereo and MONO Masters 26 46 STEREO and MONO 0UTpu XLR amp RCA PHONO 26 Monitor Section 47 MONitor Select Switches 26 48 MONITOR Level Control 26 49 MONitor OUTPUTS 27 50 PHONES Level Control 27 51 Headphone Output Jack 27 52 EXTernal INputs 2 53 SOLO Level Control and Indicator 27 54 EXT SOLO 27 55 SOLO OUTPUT 27 56 TALKBACK MIC Connector 28 57 TALKBACK LEVEL Control 2 56 TALKBACK SELECT Switches 2 59 TALKBACK MASTER Switch 2 60 METER Select Switches 28 61 Light Terminal 28 Additional Rear Panel Features 62 SUB IN Jacks 28 EXT SOLO and SENSE 28 ocio ror eae 28 OPERATIONAL NOTES AND APPLICATIONS BASIC SOUND REINFORCEMENT 3 Basic Connections 31 Adding More Input Signals 4 Setting Auxiliary and Effects Send Setting the Final Output Level 35 BASIC RECORDING PROCEDURE 36 Basic Connections Recording the Basic Tracks 3 Eight Track Recording 3 Mixdown Procedure 3 VIDEO PRODUCTION POST PRODUCTION AND AUDIO
137. oard Side R 1 31 5781073010 Screw Pan Tapping 3 x 10 BLK 1 32 5781023008 Screw Pan Tapping 3 x 8 1 33 5780964008 Screw Tapping 4 x 8 1 34 5781503008 Screw Pen washer Tapping 3 x 8 BLK 1 35 5781024008 Screw Tapping 4 x 8 1 36 5781074008 Screw Pan Tapping 4 x 8 BLK 37 5781023008 Screw 3 x 8 38 5781503008 Screw Pan washer Tapping 3 x 8 BLK 39 5781504008 Screw Panwasher Tapping 4 x 8 BLK 1 40 5781024020 Screw Tapping 4 x 20 1 41 5780963006 Screw Tras Tapping 3 x 6 2 2 EXPLODED VIEW 2 DRESS PANEL M 312 M 320 Exploded View 2 320 3 12 Parts marked with require longer delivery time COMMON MODELS REF PARTS DESCRIPTION REMARKS 2 1 5800666000 Cover Meter Ass y L 2 2 5800665100 Board Side L 2 3 5800666100 Cover Meter Ass y R 2 4 5504411000 Screw Ass y Side Board 2 5 5800666801 Chassis Side L 2 6A 5800677100 Knob Fader 2 68 5800677200 Knob Fader my SA 4 m 2 7 58006 11500 Knob Ass y A Ivory 00 foe n Kz 2 2 8 5800611600 Knob Ass y D Blue 2 9 58006 11700 Knob Ass y E Green 2 10 5800645800 Knob B 2 11 5800662300 Knob Ass y Small C Yellow 2 12 5800662200 Knob Ass y Small 8 Red 2 13 5800611500 Knob Ass y C Yellow 2 14 5800665700 Plate Upper Reinforcement C M 320 5800665607 Plate Upper Reinforcement 8 M 312
138. on either the corresponding TAPE RE TURN input or the PGM GROUP in which the section resides The LEVEL and PAN controls are used to set the signal level and distribution of the signal which is sent to the STEREO LEFT and RIGHT BUSSES The ON switch allows the MONITOR output to be muted stopping the signal from reaching the MAIN MIX Additionally on the models M 312 and M 320 each MONITOR section contains an AUX send control and an AUX POST switch In the upper row MONITORS 1 4 the controls are labeled AUX 3 while the lower row sections 5 8 contains AUX 4 Each is independent sending signal to either AUX MASTER 3 or 4 The POST switch determines whether the AUX signal is derived before or after the MONITOR LEVEL control If POST is chosen the MONI TOR ON switch will affect the AUX signal as well These AUX systems allow the MONITOR mix to be utilized independently from the MAIN MIX For example a previously recorded signal could be added to new signals through the TAPE INput and the proper MONITOR section Additionally the same signal could be sent from the MONITOR through the AUX 3 Or 4 system to an external effects device This modified or wet signal could then be brought back to the MAIN MIX via the EFFECTS RETURN system The two signals could be compared and blended if desired to create the proper sound quality Because of this flexibility the MONITOR section can be used in a number of ways it can be use
139. or a live performance can only be judged and set by the operator 35 BASIC RECORDING PROCEDURE In the preceeding section on Live Sound Rein forcement we went into some detail regarding the proper set up and usage procedures of the various submix systems When using the 300 Series for mixing audio for multitrack record ing these same systems and procedures can be used although not necessarily for the same purposes or reasons While sound reinforce ment mixing requires two mixes house amp stage monitor recording is divided into THREE separate mixing tasks 1 We must route the input signals to the desired tracks of the recorder at the proper level to achieve the best signal to noise ratio This is NOT always consistent with the best sounding mix 2 We need one CUE mixes fortheartists 3 We must create a MONITOR MIX in the trol room for the engineer and or producer To be most effective these three 3 mixes must be independent of each other We will not repeat the basics of setting levels routing AUX signals using effects etc Here we will describe the techniques primarily ap plicable to recording 36 Basic Connections In our examples for recording we will assume you are using a four track recorder When we discuss the basic mixdown procedure we will assume you will use a standard two track re corder Later in this section we will discuss using the 300 Series in conjunction with
140. r signals above are interrupted and the channel signal and the PGM signal respectively are sent to the MON OUT jacks passing through the SOLO level control Switches Indicators Monitor Pre input fader PFL PFL LED lights red EFFECT RTN input SOLO LED lights red AFL LED lights red AFL SOLO LED lightsred EXT SOLO input PGM OUT 1 4 Confirm that all the monitor signals are inter rupted when the T B TalkBack switch on M 312 M320 is depressed 1 6 EFFECT RTN SYSTEM EFFECT aba Wa OUT R MON OUT L amp R Connect a 10 dBV 1 kHz signal to the EFFECT RTN 1 4 phone jacks Turn the EFFECT PAN fully left and adjusting the EFFECT RTN LEVEL control check that nominal levels are obtainable at STEREO OUT L Then turn the PAN fully right and check the level at STEREO OUT R Note Be careful not to reduce the input level too much because there is a low input im 3 5 1 1 1 ced L Br A 1 1 1 1 1 1 1 t t PAN STEREO OUT Set fully left L 4 dBm at connectors 10 dBV at RCA phono jacks By pressing the PFL switch the signal connected to the EFFECT RTN 1 4 jack is delivered to the MON OUT jacks Refer to paragraph 1 5 lt L 3 17 PGM OUT TAPE RTN MONITOR SYSTEMS OUT Monitor System PGM gt STEREO OUT L amp R
141. rads A Parts marked with this sign are safety critical components They must always be replaced with identical components refer to the TEAC Parts List and ensure exact replacement PC boards shown viewed from side Effective November 1984 INDEX 2 MECHANICS EXPLODED VIEWS AND PARTS LISTS 2 1 Exploded View 1 Dress Panel M 308 2 1 2 2 Exploded View 2 Dress Panel 312 320 2 3 2 3 Exploded View Top 2 5 2 4 Exploded View 4 Meter Section Side Chassis R Section 2 7 2 5 Exploded View 5 Rear Panel 2 9 3 ELECTRONICS PCB S AND ELECTRONIC COMPONENTS 3 1 INPUT Ass y 3 1 3 2 3 2 INPUT JACK Ass y 3 2 3 3 3 3 INPUT BUSS PCB lt 3 4 3 4 INPUT BUSS PCB Ass y 312 320 3 4 3 5 INPUT BUSS PCB Ass y 320 3 4 3 6 BUSS Ass y 3 6 3 7 BUSS JACK PCB Ass y 3 8 3 8 BAL AMP L PCB 3 8 39 BAL R PCB Assy 3 8 3 10 AUX PCB
142. rces be mixed simultaneously These signals could originate from studio feeds VCR s 5 voice over v o mics turntables audio cassette or cart machines or any other mic or line level source The mixed signals can then be assigned to the master video cassette editing recorder Since the 300 Series features four PGM outputs in addition to the stereo outputs multiple master copies of the audio program may be recorded These additional signals may be remixed as clean feeds without the normal narration and voice over mix These mix minus masters can be used for later dubbing in a second language The AUX sends may be used to generate cue feeds to the v o announcer or for connection to the studio IFB Interruption Foldback or P L Private Line systems The EFFECTS SEND and RETURN sections can be used for side chains of special audio effects In the example shown two source VT R s are shown a typical A B roll editing situation Two v o mics are also connected as well as two additional audio sources a cassette and a cart machine These latter two pieces can be used to add mono or stereo sound effects or wild track ambience to the final mix These machines could also be used to roll effects into the mix live or on the fly 40 Monitoring of the various mix components and the final mix is handled through the 300 s comprehensive MONITOR section and outputs while the v o cues are taken from the AUX 1 send
143. reo or mono mixing stage This method of signal grouping allows the operating engineer to concentrate on mixing a small number of groups rather than afl the input channels This reduces the complexity of the mix and chances of error In our example the 31 background vocal mics are grouped together in PGM 4 the keyboards are in PGM s 1 and 2 the bass is in PGM 3 summed together with the electronic rhythm unit The acoustic guitar and lead vocal mics are routed directly to the LEFT and RIGHT STEREO MASTERS The final stereo signal is mixed through the PGM group monitor sections to the LEFT and RIGHT STEREO MASTERS This signal then feeds the main power amplifier and house speaker system On stage monitoring is controlled by the AUX 1 sends which are in the pre position This allows the monitor signalto operate independent ly from the main or house signal The stage monitor amplification system is connected to the AUX 1 output Special audio effects devices such as reverb echo compression etc can be patched into the signal path at four different points 1 through the individual channel INSERTion jacks for processing a single signal 2 through the INSERTion 1 4 jacks for continuous processing of a selective mix or group of signals 3 through the EFF OUTPUT and TAPE IN RETURN jacks for top panel control of both level and distribution over a selective individually adjustable group of signals or 4
144. s 17 16 PAN Control 17 17 Channel ON Switch 18 18 PFL Pre Fader Listen Switch 18 19 OL OverLoad Indicator 18 20 Direct OUTput Jack 18 21 Channel Fader 18 Program Master Section 22 Program Master Fader 21 23 Program INSERTion Jack 21 24 AFL After Fader Listen Switch 21 Program Group Output Section Reer Panel Features 25 OUTput Connector XLR 21 26 PGM OUTputs 21 Meter Select and Tape Return Monitor Section 27 VU Meters 22 28 Peak LEDs 22 29 METER Select Switches 22 30 TAPE Select Switch 22 31 AUX 3 AUX 4 Send Controls M 312 8 M 320 22 32 AUX 3 amp 4 POST Switch M 312 amp M 320 22 33 Monitor LEVEL Control 22 34 Monitor Control 22 38 Monitor ON Switch and LED Indicator 22 Auxiliary and Effects Master Send Controls 36 MASTER Level Controls 25 37 AUX 3 8 4 SUM Switch M 312 amp M 320 25 38 AUX and EFFects OUTPUTs 26 Effects Return System 39 EFFECT RTN 26 40 EFFECT RTN LEVEL Control 26 41 EFFECT RTN PAN Control 26 42 EFFECT RTN PFL Switch 26 Stereo and Mon
145. ted to the channel Once sent to the AUX 1 BUSS the signal is combined with any other AUX 1 signals This composite signal is then controlled by the AUX 1 MASTER and sent to the AUX 1 OUTPUTs The AUX 2 submix system is similar to the preceeding system but offers a slightly different signal source choice The AUX 2 signal input is determined by the POST switch In the up position PRE the signal is the same as that selected for AUX 1 regardless of the AUX 1 choice In the POST or down position the AUX 2 system receives its signal from the chan nel post EQ and FADER Thus AUX 2 can be different from AUX 1 or the same depending on the selection of the sources As with AUX 1 the AUX 2 signals are summed and controlled by the AUX 2 MASTER control The final signal mix is available at the AUX 2 OUTPUTs The next submi x system is the EFF ECTs send system Unlike the AUX 1 and 2 systems the EFF ECTs system is dedicated its signal source is always the channel The signal is taken post fader so whatever EQ and channel fader changes are applied to the channel signal will be apparent in the EFF ECTs signal as well The composite EFF ECTs signal from all the selected send trols are sent through the EFFECTs BUSS to the EFFECTs MASTER control and on to the EFFECTS output jacks Effects Return System The EFFECTs RETURN subsystem should be viewed as a pair of separate or extra line inputs The specific reason for t
146. tors Make sure you choose and connect the proper signal level for the equipment being interfaced 2 Next you need to apply a signal to the system A test tone generator or test tape is handy to have for this procedure Assuming you are using a tone generator set the fre quency to 1kHz and connect the signal to the channel MIC or LINE INput whichever is appropriate 3 Select the proper input for channel B Turn the EQ section off and turn the channel on 4 Assign channel 8 to PGM s 1 4 and set the PAN control to the 12 o clock center position 5 Raise all four PGM faders to the shaded area about 7 8 on the gradient scale 6 Make sure the TAPE RTN switches on MONI TOR sections 1 4 are in the UP position TAPE RETURNS de selected make sure the four METER select switches are in the UP posi tion 7 Set the proper input TRIM control on chan nel 8 to 12 o clock 8 Raise the channel 8 FADER until the VU meters read O The channel FADER should be in the shaded area If it isn t adjust the TRIM control until it is correct 9 When all four output meters read O VU raise the input level controls until the recorder s meters all read O VU 42 10 Record the 1 kHz tone with the level set at O VU for about a minute 11 Connect the outputs from the recorder to TAPE IN jacks 1 4 on the 300 Mixer 12 Press the TAPE RTN switches on MONITOR sections 1 4 13 Rewind the tape to the beginning of the recorde
147. tting of the faders to the shaded area be tween 7 8 on the scale provides a 10 d8V output 2 TRIM LINE Port LINE IN gt D OUT Connect a 10 dBV 1 kHz signal to LINE IN Press the LINE switch to select the LINE IN signal Adjust the T RIM LINE pot for a 10 dBV reading at D OUT 3 EQualizer LINE IN gt D OUT Connect a 10 dBV 1kHz signal to LINE IN and press the EQ ON switch Read the levels at D OUT while turning the GAIN knobs of the three sections HIGH MID and LOW If the readings vary approx 15dB in regard to a 10 dBV nominal level the EQ electronics are considered normal 4 AUX 1 and AUX 2 Level Pots LINE IN gt AUX 1 AUX 2 OUTPUTs Connect 10 dBV 1 kHz signal to LINE IN and press the AUX 1 LINE switch Confirm that AUX 1 2 OUTPUTS provide nominal levels O 08 at 1 4 phone jacks 10 at RCA phono jacks when the AUX 1 2 level pots are set to the max position or fully right 5 EFFECT Send Control LINE IN EFFECT OUTPUT Connect a 10 dBV 1 kHz signal to the LINE IN jacks and press the channel ON switches Confirm that setting of the EFFECT send control to maximum provides nominal levels to the EFFECT OUTPUT 0 dBu at 1 4 phone jacks 10 dBV at RCA jacks 6 TRIM MIC Pot MIC IN gt D OUT Disengage the LINE switch to select the MIC IN signal Connect a 60 dBV 1 kHz signal to MIC IN and adjust the TRIM MIC pot for a 10 08 reading at D OUT TRIM MIC control range is
148. um Input Level Solo Output Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level Maximum Output Level Headphone Output Load Impedance Maximum Output Level Meter Peak Indicator Level Fader Attenuation 1 kHz Power Requirements US A CANADA Europe U K Australia General Export 25d8m 14 V Balanced 20dBm 8 V Unbalanced 20 ohms 2k ohms 10 k ohms 0 dBu 0 78 V 20dBu BV 9 k ohms 200 to 600 ohms 50 dBV 3 mV 80dBV 1 mV dBV 2 8 V 22 ohms 2 kohms 10 k ohms 0 dBu 0 78 V 20d8u 8 490 ohms 2 ohms 10 k ohms 10 dBV 0 3 10dBV 3 1 V 22 k ohms 10 dBV 0 3 V 18 dBV 8V 100 ohms 2 k ohms 10 k ohms 10 dBV 0 3 V 18 d8V B V 8 ohms stereophones 1 5W 1 5 W 6 VU Type 10 dB above nominal output level 8098 120V AC 60 Hz 46 W 220 50 Hz 46 W 240 50 Hz 46 W 100 120 220 240 V AC 50 60 Hz 46 W PERFORMANCE CHARACTERISTICS Equivalent Input Noise DIN Audio A Wtd 1500hm source 130 dB 132 dB Signal to Noise Ratio DIN Audio A Wtd 12 Mic to PGM Output 52 dB 58 dB 1 Line toPGM Output 86 dB 87 dB 12 Line toPGM Output 77 dB 80 dB 1 Line to Effect Aux Output 82 dB 84 dB 1 Line to Stereo Output 85 dB 87 dB 1 Line to Mono Output 83 dB 85 dB 1Line to Monitor Output 84 98 86 dB 1 Line to Solo Output 86 98 88 dB Total Harmonic Distortion THO 1 Mic Input to 1 Output 0 025 20 Hz
149. ut and output controls achieving the desired effect becomes a matter of adjusting the EFFECTS output level both channel and MAS TER the device s controls and the EFFECTS RETURN LEVEL and PAN controls If during the mixing process you need to visually monitor the wet signal de select the specific channels buss assignment switches This leaves on y the returning signal the STEREO MASTER busses These can be meter ed by pressing the STEREO switch in the METER SWITCH RACK Setting the Final Output Level The preceeding sections have covered the various input and intermediate stages available for mixing audio on the 300 Series Our examples and recommendations are designed to provide the lowest possible noise with the highest possible headroom Obviously the considerations of the program content artists and audience will require some variations from these in structions For this reason we intentionally excluded subjective areas such as EQ settings For more information on the use of EQ see page 44 The setting of the final output level is a similar consideration While the final level is determined by the STEREO MASTER FADERS or if a single output is desired the MONO MASTER FADER it would be presumptuous for us to suggest the level setting Ideally the STEREO VU meters should read below or the same as the PROGRAM meters but this is an ideal and cannot be offered as an absolute The actual final setting f
150. where both where from and when to and how much Every control found or the top panel regardless of its specific label o system membership performs one or both o these functions Keeping this in mind may hel overcome the inevitable intimidation caused 6 the apparent sea of knobs presented by you mixer These three illustrations will help you to under stand the submix systems The first is an illustra tion of the top panel controls The second i a pictogram this shows the controls laid according to how they are wired their Func sequence Note that the functiona sequence is not the same as how the controls art t ic FL Indicator 36 OL Indicator gt oU erue PR ose RO 288 2 eee lt Fade _ r INE ins i z f O rare 3 5 4 LINE Switch Channel ON indicator BM INPUT PCB ASS Y M 312 CHANNEL 2 320 CHANNEL 14 20 6 ONLY CHANNEL FROM MASTER PCB IN ACQUPLED WITH TAPE IN e physically laid out Also keep in mind that each symbol in the pictogram represenw either a where or how much point or in the case of the PAN control a where AND how much point The third illustration simplified electrical sequence called
151. z 148 Cross Tatk At 1 kHz Better than 70 dB At 18kH Better than 60 dB In these specifications 0 dBV is referenced to 1 0 Volt OdBu and dBm are referenced to 0 776 Volt Actual voltage levels are also given in parenthesis 0 316 Volt for 10d8V is rounded of and given as 0 3 Volt and 0 775 Volt for 0180 as 0 78 Volt Changes in specifications and features may be made without notice or obligation M 312 SPECIFICATIONS MECHANICAL CHARACTERISTICS Input Selector Fader Length Assign AUX Select Monitor Select Matrix Meter Select Switch Dimensions W x H x DJ Weight net MIC LINE 100 mm Odd 1 3 L Even 2 4 R AUX 1 Pre Equalizer Line AUX2 AUX 1 Post Fader AUX3 4 PGM Buss TAPE RTN Pre Fader Post Fader switchable Stereo Ext 1 Ext 2 Mono Effect Aux 1 2 Aux 3 4 1 4 1 4 RTN71 4 5 8 L R Stereo Ext 1 Ext 2 Mono Effect Aux 1 2 Aux 3 4 switchable 720 x 220 x 692 mm 28 3 8 x 8 11 16 x 27 114 26 57 5 16 lbs ELECTRICAL CHARACTERISTICS Mic Input Mic Impedance Input Impedance Nominal input Level Minimum Input Level Maximum Input Level Attenuetion Line Input Input Impedance Nominal Input Level Minimum Input Lavel Equalizer Type Frequency Boost Cut Channel Overload Indicator Channel Insertion Output Impedance Minimum Load Impedance Nominal Load Impedance Nominal Output Level 54 200 ohms to 600 ohms nominal 2 8 k ohms 60dBV 1 mV

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