Tascam M-300 Series Operation & Maintenance Manual
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Tascam M-300 Series Operation & Maintenance Manual

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TASCAM
TEAC Professional Division
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Series
Mixing Consoles
OPERATION/MAINTENANCE
5700064400

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  • Page 1 TASCAM TEAC Professional Division Series Mixing Consoles OPERATION/MAINTENANCE 5700064400...
  • Page 2 CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, 00 NOT REMOVE COVER lOR 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 uninsu\ated "dangerous voltage"...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS n System have The guarantee of perfol'llli n ce that we provide INTRODUCTION . . . • ....9 Effects R for the Series Mixen must several Systems Introduction ....
  • Page 4 2) TAPE RTN Select Switch ..1· 9 (Japan Model Only) . 3 - 27 ..TASCAM Cables ..... 50 3, AUX 4 OUTPUTS 4. SCHEMATIC DIAGRAMS (312&3200NLY) .... 1-10 &...
  • Page 5 &...
  • Page 7 FUNCTIONAL SEQU ENCE (M-31 2/M-320) INSERTion TAPE IN 1 • SUB IN l 'U../1 SUB IN STEREO �� =·� �· St e " GlStereoMaster Fader R �C:E � MONO Master �� SUB IN R F•der (D t>��lo...
  • Page 8 Busset au ..STEREO STEREO OUT L +4 dBm (K2) Master STEREO OUT R !RTion +4dBm -10d8V (x2) MONO T4d8m l · v OdBu MONitor OUTPUT L , AUX 1 OdBu MONO ''ux EFFECT -10dBV '• MONitor OUTPUT IIX3 0 dBu -10dBV Headphones SOLO OUTPUT...
  • Page 9 FUNCTIONAL SEQUENCE (M-308) � SUB IN SOLO Buss SOLO...
  • Page 10 t!ftJ Fllndicator =!><t/ SOLO PGM Busses Busses STEREO OUT 1 laster L EXT 1 EXT 2 �X 1 MONO EFFECT...

  • Page 11: Introduction

    INTRODUCTION Understanding what's going on inside your The T ASCAM Series Mixers were designet equipment will help improve your sound. This for maximum flexibility without compromisin! manual as a reference book. You may not need performance in any way. to know all of what is here to begin, and it is certainly not necessary to memorize it, but do They are equipped with a very flexible comb ina try to find the time to read it thoroughly at...
  • Page 12 oo • [J � . l!)l.: :�"' .. " ' physically laid out. Also keep in mind that each symbol in the pictogram represe nts either a "w here" or "how much" point , or, in the case of the PAN control, a "where AND how much" point.

  • Page 13: Systems Introduction

    sources from which it may receive its input. SYSTEMS INTRODUCTION Each channel has either two or three input This manual presumes nothing about your As we will see later, each source can be used past experience with the multi-channel process independently of the others, allowing the 300 except a willingness to learn.
  • Page 14 The AUX 2 submix system is similar to the system for multi-track recording as it al lows preceeding system, but offers a slightly different various signals to be heard or monitored during signal source choice. The AUX 2 signal input is the actual recording process.
  • Page 15 Because of this flexibility, the MONITOR section can be used in a number of ways; it can or as a 11t1bmix of up to eight various external be used as an Bx2 submix of external signals, and internal signals. On the M-312 and M-3 2 0, the two additional AUX systems also provide extra mixing capability as each can be used separately or summed to a mono configuration.

  • Page 16: Features And Functions

    FEATURES AND FUNCTIONS INPUT CHANNEL SECTION MIC INput Connector This is a three pin X LR-type co nnecto r fo r use with balanced signals with an i mpedance of fro m 50 t o 600 o hms . While the co nnecto r is identified INSERT as a "M IG"...

  • Page 17: Equalizer

    iii� ��� � t Ll N E IN Signal Routes lJ!!! !.J ly high Mic signals or line level signals, insert the 30 dB Pad. b. L I NE (Tape) TRIM- Lower Knob Provides variable attenuation for signals from the LINE I Nput connector and the TAPE Return INput jacks.

  • Page 18: 11, 12. Auxiliary Line And Post Select

    Ei�' respective circuits or busses. Each control can a signa l taken from the channel after (post) the rece ive and process a signal from a different FADER and ON switch. The signal selected here source or point within the channel's s ignal path. is sent to AU X 2.

  • Page 19: Effect Send

    the performer's Cue mix for overdubbing allows normal signal flow if no connector is which requires the ability to combine the plugged in. already recorded tracks with the new This jack is located on the rear panel just above material. monitoring the recorders the MIC IN connector.

  • Page 20: Channel On Switch

    f& el O N Switch : . � This switch deter mines the status o f the chan­ nel's signaL Pr essing the switc h allows the signal to flow to the PAN co ntro l, and also, to the E F F ECTs and AUX po st-fader send po int.
  • Page 22 " , ii!i l· mlli "'•' �; ·-· ·--�1 L� .J...

  • Page 23: Program Master Fader

    PROGRAM MASTER SECTION Program Master Fader Each o f the fo ur PROGRAM sec tio ns co ntain a '»} \.Llll.wt,l 1 00 mm Fader fo r the se tting o f the final PRO­ GR AM o utput leve l . As in the case of the Channel Faders, e ach carries gradient scale mark i ngs fo r re lative leve l indicatio n .

  • Page 24: Meter Select And Tape Return

    0 TAPE RTN Select Switch Whe n pressed, this switch connects the specific TAPE R ET U R N to the corresponding TAP E MONITOR section, a llows access of the re tur n­ ing signal to the M E T E R , and provides signal to ',�.
  • Page 25 �HS AUX 1 4 Signal Routes ; ....---- r�.- - �JJ ......, _se!'!, _ _ _ _ a*· i�.J. n "--::!t: = -=-=::!1=-=-=-=-=-=-=-=- : ____________ _ L-------------------...
  • Page 26 ·-- · n,..,., ·-- · � ] - · •o-• 10-l .. ._. ,... , -- - - -' -- -- --- --- - -- -- -- --...

  • Page 27: Auxiliary And Effects Mester

    AUXI LIARY AND E F F ECTS MASTE R SEND CONTROLS �MASTE R Level Controls Each of the two ( M-3 08) o r fo ur ( M - 3 1 2 o r M-320) AUX systems and the E F F ECTs system has its own independent MASTE R LE V E L co ntro l , allo wing up to five different A U X o r E F F signals o r mixes to be co ntro lled.

  • Page 28: Monitor Section

    MONO Master Fader AUX and E F F ect s OUTPUTs This series of 1 /4" Pho ne jacks provide o ut put This co nt ro l receives i t s signal f ro m bot h t he L E F T and R IGHT MAST E R FADE RS.

  • Page 29: Monitor Outputs

    G> cates; 1) A signal is present in the buss, and, MONitor OUTPUTs These 1 /4" Phone and RCA phone jacks provide 2) The MONITOR and HEADPHONE circuits are switched from their normal signal, as deter· stereo output signals from MONitor mined by the MONitor switch, and are receiv ing, SE LECT SW ITCH RACK.

  • Page 30: Talkback Mic Connector

    ADDITIONAL REAR PAN E L FEATURES This female XLR-type connector allows a ded icated talkback mic such as the TASCAM SUB IN Jacks model MC-70 1 G to be added to the M -3 1 2 and These jacks all perform the same function - M-320 mixers.
  • Page 31 ..::..� . 1 ·-· "'" �N-· � j [;-,;.: IJ 1-10 .. , ·�·· IG-1 ..� ... r.�. !!!:if j. J <-10-1...

  • Page 32: Operational Notes And

    OPERA TIONAL NOTES AND APPLICATIONS PGM 4; the keyboards are in PGM's 1 and 2; This sEICtion of the manual is designed to assist background vocal mics are grouped together in you in initially connecting and using your 300 Series Mixer. We provide several examples to the bass is in PGM 3, su mmed together with the aid you, but these guidelines should not be electronic rhythm unit.
  • Page 33 SOUND R E I N F O RCEMENT Power Amplifier Unit Electronic Rhythm Compreaor/ Limiter Vocal {Lead} Reverb Acoustic Guitar House [=:J House Speaker Speaker Main Power Amplifier Main System Electric Guitar...
  • Page 34 SOUND R E I N F O RCEMENT Power Amplifier Unit Electronic Rhythm Compreaor/ Limiter Vocal {Lead} Reverb Acoustic Guitar House [=:J House Speaker Speaker Main Power Amplifier Main System Electric Guitar...
  • Page 35 capacitors to discharge, then continue to the fi rst stage of gain, thus reducing the to turn off the remaining equipment. possibil ity of overloading and distortion. If the Turn the mixer off last. O L L E D only flashes periodically, but the channel fader is at a low position(below 6).

  • Page 36: Adding More Input Signals

    M-308. This is an AUX send control, similar process a M I C signal, a separate L I N E signal can to those found on the input channels. On be connected to that channel's L I N E I Nput MON ITOR sections 1 - 4, this control is identifi·...
  • Page 37 feed. Si nce most stage monitor signals are the return level can be done by either head­ derived "pre-fader", AUX 1 will provide this phone monitoring or by listening to the signal through the house speaker system. The on· signal when both A U X select switches are in the board controls used are the E F F ECT R ET U R N up position.

  • Page 38: Basic Recording Procedure

    BAS IC RECORDING PROCEDURE Basic Connections In our examples for recording, we will assume In the preceeding section on Live Sound Rein­ you are using a four track recorder. When we forcement, we went into some detail regarding discuss the basic mixdown procedure, we will the proper set-up and usage/procedures of the assume you will use a standard two track re­...
  • Page 39 STUDIO R ECO R D I NG Performer's Cue System Electronic Rhythm Synthesizer Mono Synthesizer (Track Control Room Studio Monitor Playback System Monitor System Vocal (Load) (Track D O D D Track Recorder 2-Track Master Recorder Electric Electric Guitar (Load) (Track 1 ) (Track 2)

  • Page 40: Tracks

    Also shown 1s the performers' CUE system which the electronic rhythm input channel. This feeds provides selective signals to headphones. In our the headphone amp used in the previously example we use a T ASCAM MH-40B Head­ detailed cue system. To create your control phone Amplifier.

  • Page 41: Eight Track Recording

    Since the mu ltitrack machine's outputs are E ight Track Recording Before we discuss the mixdown procedure, this connected to the TAPE I Ns, the mixdown can is an appropriate place to d iscuss another aspect be done entirely in the MON ITO R and STE R E O of the 300 Series' flexibility.

  • Page 42: Video Production, Post Production, And Audio

    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...
  • Page 45 Test Tone Source VU Meters LINE OUT ( 1 - LINE IN - 4) ���� ���� � � � � � �...

  • Page 46: How To Use Equalizer (Eo) Section On The 300 Mixer

    HOW TO USE THE EQUALIZER (EQ) SECTION ON THE 300 MIXER Equalization can be used to alter the tonality results. Once you have determined that 1 I the signal does of a signal. Unfortunately, the same ability to favorably change one signal may resu lt in an require EO, and 2) the proper frequency range unfavorable alteration in another.
  • Page 47 To help you learn and properly respect the capa­ bil ities of the EQUALIZER section, we offer 1 ) . The BEST equalization is non at all. these two guidelines: 2). If EQ is required, use the least amount possible to perform the task. 1kHz 20Hz 50Hz...

  • Page 48: Pre Post Eo When Using A Limiter

    Pre & Post EO When Using a Limiter The relationship between the channel and group Many engineers like to EO the low end before faders is equally important. If the channel faders limiting to help avoid excessive "pumping" of are all the way up, as shown below, while the the signal.

  • Page 49: Accessories For The 300 Series Mixers

    PW-2Y /PW-4 Y Insertion Cable The TASCAM PW-2Y/PW-4Y is a connecting cable that al lows signal processing such as a graphic equalizer to be inserted at specific points of the signal path of the 300 Series Mixers. Its tip-ring-sleeve plug connects to the I NSERT jack while its "Y'ed"...

  • Page 50: The Pb-64 Patch Bay

    The PB-64 Patch Bay 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 real ly want to do. Sixty­ four RCA pins on a panel.
  • Page 51 Internal ci r cu i t connection � � � � = �� �� � Model name Type of jacks ( REAR) (FRONT) �- - -- - --- � Upper 1/4" phone jack PB-32P (front and rear) lower Upper - - - - RCA jack PB-32R (front and rear)

  • Page 52: Tascam Cables

    There are vast d ifferences in cable I f TASCAM p rofessional cables are not available design and performance that have significant in your area, please try to find the next best effect on the sound qual ity you'll get from cables.

  • Page 53: Specifications

    M-308 SPECIFICATIONS MECHANICAL CHARACTERISTICS 10 k ohms Nominal load lmpedanct Maximum OutpUt Level 100 ohms OutpUt lmptdan<e N'"" i nal Output l.ml -10 dBV 10.3 VI MIC/LINE Input Selector Minimum Load lmpedarn:e 2 k ohms +10 dBV 13.1 VI 3.5 k ohms 100 mm Fader Length N'""...
  • Page 54 1 Mic T Olill Harmonic Distortion ITHDI 1/4" Input to 1 PGM OutpUt 0.025 % {20 Hz - Output Impedance 20 ohms Minimum Load Impedance 2 k ohms 20kHz, EO OUT, Nominal Load Impedance 50 dB above nominal 10 k ohms Nominal Output Level input level and MIC DdBu {0.78 V)
  • Page 55 M-312 SPECIACATIONS Maximum 0u1pll t Level MECHANICAL CHARACTERISTICS +18 dBV 18 VI 490ohm• Output Impedance Input lmped811C1 5 k ohms 2 k ohms Nominal Input Level Minimum Load Impedance M I C/L I NE Input Sela<tor -10 dBV 10.3 V) Nominal OuiPUt Lewel Nominal Load Impedance 10 k ohms...
  • Page 56 �imum Output level +25d8m 114 VI PERFORMANCE CHARACTERISTICS Balanced +20d8m 18 VI Equivalent Input Noise DIN Audio/" A" Wtd Unbalanced 150ohm ""'""' -130 dB/-132 dB 1/4" Signal-to-Noise Ratio DIN Audio/" A" Wtd 20 ohms lmpada""' 12 Mic to PGM Output Ou!put 52 dB/58 dB Minimum load IIJIII Idanct...
  • Page 57 M-320 SPECIRCATIONS MECHANICAL CHARACTERISTICS Maximum Output le"l +18dBV (8 VI Input Impedance 5 k ohms Output Impedance 4 90 ohms Input Selector Nominal Input lml -10 dBV 10.3 V) MIC/LINE Minimum load Impedance 2 k ohms Fader length 1 00 mm Muimum Input lovtl +11 dBV 13.5 V) Nominal load Impedance...

  • Page 59: Voltage Conversion

    VOL TAGE CONVERSION is adjusted 1 . Turn This mixer to operate on the e the mixer upside-down on a soft surface. ls ) . voltage specified on the packing carton. 2. Remove screws A (two) and B (quantity of B differs a 3.

  • Page 60: Block Diagram

    M-308 BLOCK DIAGRAM Ml<; IN • r. ; ; � ti NOTE 1. UNIT 0.., • IVINI o • • o.nsvrn 0 ..• 0.11'5V ... E> E> L>' 114" oiiC K ·-·-... , I'USH s••TCH 114"11t·OUf.w:tl: ·--· 1-QI •...
  • Page 61 '"'"''"' '"'! r:�:. M J ··· · --··"'' / ..__________ ..

  • Page 62: M-312/M-320 Block Diagram

    M-3 1 2 /M-320 BLOCK DIAGRAM """ ii i -" illi Jfll ! I II CiCM: tCtfli!M'; ..! l�:� :=t :�\ 1 •111 I'!OWI• ..� @ t,.!•l I.OW • �0 t!IQi 1?)- £:> - .,..-- - ..... ---'""'�- -'- - -!- - ----<>...
  • Page 64 M-31 2/ M-320 BLOCK DIAGRAM . - - -�-- - I UfltiT 0 41¥ • ' *­ o• • o.n&'Pflll o-.• o:nsv ..Z. Of'IIIAT101Ml -K>f!IV LEY£1. .[ffi:J <lf' ' . ,_, ::-- ""' I'U6H SWI 'ItM "" """ IUJe•lP! 1 1 4"...
  • Page 68 EFFECT RTN I MON I TOR SIGNAL FLDW 10.1 =- �.f.. m HOdBVI c@:�J 1 -IOdfVI + 10 ------------, EfFECT RTN SUB IN I EXT SOLO TO BUSS EFFECT 1-10.2 � 1 OTHER HOevl - <» EFFECT LEVEL...
  • Page 69 [��fi�-Ci!.!l I O d(lld t-IOdBV! FROM TO WN STEREO/MONO/ EXT 1 , 2 / EFFECT / AUX 1-IO.VI f-IOdiYI U4ffi iN!I J ( Odlul I-1Dci8VI [�_Q"Qt�J ' j '1 1 0 116111 t-IOtiBVI !MAlliA !.SW+L!WJ >---------..J FROM SOLD CONTROL >---- ______ 122(18) PHONES...

  • Page 70: Level Diagrams

    M-31 2/M-320 LEVEL DIAGRAMS FLOW MAIN SIGNAL 111 1 0 .JJ II.@ -�..1 HIGH - ·· +>0 MIC ATT LINE. IN - •o MtfiJRIM _ ,., MIC IN .., MIC TRIM LONE LEVEl EFF fl! INPUT FAO[R OPERATIONAL lEVEl. Od8o .. 0.175\lrrnl -104BV O d!W "...
  • Page 71 EFFECT RTN I MONITOR SIGNAL FLOW 10.81 @'/Ei, ] 1-IO.zdBV) �·-¥ [I2!J �<> - l STEREO 1 -&0.VI T/8 IN TALKBACK LEIIEL I !W"'!OdB I >- CONTROL !=:.=:; _ _ _ _ _ __ _ _ [EXr:� J 1-IOdiVl dB\/ ----- -------, EFFECT RTN >­...
  • Page 72 Lfff.E£1 1¥i §!IT] ! O dllll 1-tO.avt TO MON STEREO/MONO/ t�IOdiV I FROM 2 /EFFECT/AUX 1 t : : I r r 1 1 r D�!C@!.hJ l \ \ t \ 1048111 � , .. 100\'1 fM9!:L®!�J 1-IO!ItVl UrW! &Q L5W-tL!SWl -- - - - - - - - - - - - - - - - t O !liM ! -l.78dB¥l...

  • Page 73: Maintenance

    MAINTENANCE...

  • Page 74: Level Setting And Operation Check

    LEVEL SETTING AND OPERATION CHECK "0 dB" reference voltages: 0 dBV is referenced to 1 Vrms. 0 dBm/0 dBu is referenced to 0.775 Vrms. 1 - 1 . MASTER FADERS A N D POTS Connect a - 1 0 dBV, 1 kHz signal to the mput jacks l isted in the table, and by adjusting the MASTE R faders and MASTER pots of the channels...
  • Page 76 TU AMOTHEJI - - - POll a$S'Y • M4STU PC e !i ii]) ,.,.,,,_, <lf.Q IIII ; � - - -- · ·· - - - - - - - - - - - - - - - - -...

  • Page 77: Channel Faders And Pots

    1-4. CHANNEL FADERS AND POTS I nput Channel Sections of the 300 Series Mixers are all identical. TAPE I Ns 1 -8 are internally connected to L I N E I N s 1 ·8 and disconnected when 1 /4" phone plugs are inserted to Ll NE I Ns.
  • Page 78 !ii i ii I iiii Ul l l i iiii fl s liii �� � U l l 1111 i i...
  • Page 79 . . . r _ _ _ TIB IN...
  • Page 81 STEREO OUT fully loft connectors 1 -6. E F F ECT RTN SYSTEM phono jacks fully riiJrt (EF FECT RTN..,-STEREO OUT L & R +4 dBm dBV at RCA Connect a - 1 0 dBV, 1 k H z signal to the E F FECT RTN 1 /4"...

  • Page 82: Levels

    PGM OUT/TAPE RTN MONITOR Monitor O N switches 1 and 5 select the PGM 1-7. OUT 1, monitor ON switches 2 and 6 the PGM SYSTEMS OUT 2, monitor ON switches 3 and 7 the PGM OUT Monitor System PGM OUT 3, and monitor ON switches 4 and 8 (PGM -->...

  • Page 84: (Line In

    1-10. F R EQUENCY RESPONSE output to 1 kHz and read the distortion meter. Set the input and output levels to nominal as in previous paragraphs and connect an oscillator Specs are as follows : to the input jack and a wide range (more than 1 00 kHz) level meter to the output jack.
  • Page 85 INDEX 2. MECHAN I CS - EXPLODE D V I EWS AND PARTS L I STS 2-1 . Exploded View - 1 ( D ress Panel - M-308) ......2 - 1 2·2.
  • Page 86 4-1 1 . Mono Amplifier PCB Ass'y (M-308) ....... 4 . 1 1 4-12.
  • Page 88 Exploded View-1 • Parts marked with require longer delivery time. COMMON REF. NO. PARTS NO. DESCRIPTION REMARKS MODELS Cover, Meter Ass 'y; •5800666000 Board, Side; L 1 . 2 *5800665100 Cover, Meter Ass'y; R 1 . 3 •58oosss1oo Screw Ass'y, Side Board 1 .

  • Page 89: Exploded View

    2- 2. EX PL O D ED V I EW -2 (D RE SS PA N E L - M -3 12 /M -3 20 2 - 3...
  • Page 90 Exploded View-2 (M-320/M-3 12) Parts marked with * require longer delivery time. COMMON REF. NO. PARTS NO. DESCRIPTION REMARKS MODELS • 2 · 5800666000 Cover Meter Ass'y, L · *58006651 00 Board, Side; L · * 58006661 ()() Cover Meter Ass'y, R 2 ·...

  • Page 91: Exploded View- 3 (Top Panel)

    2-3- EXPLODED V I EW-3 (TOP PANEL) 2 - 5...
  • Page 92 Exploded View-3 Parts marked with • require longer delivery time. COMMON REF. NO. PARTS NO. DESCRIPTION REMARKS MODELS 3 · 1 5334041 700 Connector Socket, BNC�type M·320. M·312 lnsulater 3 · 2 "5800677500 M-320, M·312 3 · 3 "580066 2 700 Washer, Insulating M·320, M-312 3 ·...
  • Page 93 2-4. EXPLODED VI EW-4 (METER SECTION, SIDE CHASSIS R SECTION) M-320/M-312 2 - 7...
  • Page 94 Exploded View-4 Parts marked with • require longer delivery time. COMMON REF. NO. PARTS NO. DESCRIPTION REMARKS MODELS 4 · •5800667301 Panel Aas'y, Meter; C M·320 •5800667201 Panel Ass'y, Meter; 8 M·312 Meter •5800667101 Panel Ass'y, Meter; A M-308 4 · 2 •5800606500 Escutcheon, 4 ·...
  • Page 95 ( R EAR PAN EL) 2-5. EXPLODED VI EW-5 2 - 9...
  • Page 96 Exploded View-5 Parts marked with • require longer delivery time. COMMON DESCRIPTION REMARKS REF. NO. PARTS NO. MODELS Panel, Rear M-320 *58006 66 7 01 5 · Panel, Rear M-312 *5800666601 M-308 *6800666501 Panel, Rear Panel, Rear (J] M-308 *5800 6 70901 PCB Ass'y, SUS IN M-320, M-312 5 ·...

  • Page 97: Electronics- Pcb's And Electronic Components

    3. ELECTRONICS - PCB'S AND ELECTRONIC COMPONENTS INPUT PCB Ass'y REF. NO. PARTS NO. DESCRIPTION REF. NO. PARTS NO. DESCRIPTION CAPACITORS 52001 55500 PCB Ass'y 52101 55500 5260165252 47J.LF C 1 0 1 , C102 IC's 5260162950 Elec. 10�F C103, C104 5172216000 Ceramic 220pF...

  • Page 98: Input Jack Pcb Ass'y

    3·1. INPUT PCB Ass'y 3-2. INPUT JACK PCB Ass'y MIC IN LINE IN D OUT I NSERT 3 · 2...
  • Page 99 AUX 2 EFFECT INP JACK PCB Ass'y PARTS NO. DESCRIPTION R E F . NO. 5200156600 Ass'y 52101 55600 53300 1 1 400 1 /4" Jack ITRSl J101 J102 53300 1 1 500 1/4 " Jack ITRSI J103 53300 1 0800 1/4"...
  • Page 101 I N P BUSS A PCB Ass'y R E F . NO. PARTS DESCRIPTION 5200157100 PCB Ass'y IAII oxcopt 5200157 1 1 0 PCB Ass'y 5210157100 CONNECTORS P501 -P508 5336166700 7P IMl P509-P5 16 5336167000 10P IM) P517 53361 26300 3P IM) (M·308 1Jil P518...
  • Page 102 3-6. BUSS AMP PCB Ass'y BUSS AMP PCB Ass'y REF. NO . PARTS NO. DESCRIPTION REF. NO. PARTS NO. DESCRIPTION 52001 55800 PCB Ass'y (M·308) R207 5240025820 1000 PCB Ass'y (M-312, M-3201 5200155810 R208 5240034620 470k0 R209 524003nzo 47k0 5210155800 R210 5240029120 2.4k0...
  • Page 103 PARTS NO. DESCRIPTION REF. NO. PARTS NO. DESCRIPTION REF. NO. Ceramic 22pF C207 51 73449000 SWITCHES Eloc. 22�F 25 V C208 5260163452 El oc . 10�F C209 5260162550 5201 5300039200 Pu•h sw. 2·2N Ceramic 100pF C210 51 73457000 5202 5300037800 Pu•h sw.

  • Page 104: Buss Jack Pcb Ass'y

    BUSS JACK PCB Ass'y 3-7. PGM OUT TAPE IN PGM OUT I NSERT 3-8. BAL AMP L PCB Ass'y OUTPUT l/R UN - BAL STEREO BAL AMP R PCB Ass'y 3-9. OUTPUT MON L/R EFF /SOLO STEREo OUT R , .._ Q--4t �...
  • Page 105 BUSS JACK PCB Ass·y PARTS NO. DESCRIPTION REF. NO. 5200155900 PCB Ass'v 5210155900 J206 533001 1400 1 /4" Jack (TRSI J207 5330509500 RCA pin jack, P208 5334041 500 LB (M I 530091 1400 Slide 2-2N 5209 5781012605 Tapplng M2.6 x 5 Sc<ew, Pan haad, B A L AMP L PCB Ass'y BAL AMP R PCB Ass'y...

  • Page 106: Aux Pcb Ass'y

    MASTER 3-10. AUX PCB Ass'y "'o --w.- .., !-"- <�· . \ 17 AUX PCB Ass'y REF. NO. PARTS NO. DESCRIPTION R E F . NO. PARTS NO. DESCRIPTION PCB Ass'y 5240029820 4.7kU 5200156100 (M-308} R316 PCB A"'y R317, R318 5240031020 15kU 5200156110...
  • Page 107 .. - - �· � · � - � ���--��--� ·· ··· PARTS NO. DESCRIPTION REF. NO. PARTS NO. DESCRIPTION REF. NO. C310, C31 1 51734490 00 Ceramic 22pF CONNECTORS C312, C313 51 73449000 Ceramic 22pF IM-312, M-3201 J301 5336164900 9P (F) C314-C316 51 73449000...

  • Page 108: Monitor Pcb Ass

    MONITOR PCB Ass'y -.. -..-�--� .. � REF. NO. PARTS NO. DESCRIPTION REF. NO. PARTS NO. DESCRIPTION Aill'V 52001 56200 (M-308) C416 62601 65962 Elec. 100#F 52001 56210 PCB Au'y IM-312. M-3201 5 1 73449000 Ceramic 22pF C41 7 . C418 47 #F 6260165252 Elec.
  • Page 109 3-12. MONITOR PCB Ass 'y --_;;_ME;:;T .;.:Ec cR_ .._ MONITOR PHONES ········--��---·"·· 1·2 EXT 2 EFF /MONO 3 - 1 4...
  • Page 110 ....3 - 1 5...
  • Page 111 3-13. MON BUSS PCB Ass'y ooo'-""o"'' -"'oW"CO• ' <11- - I --� ..j " �-- "-- " ' "-"' o�o''-'-" � '- " --- � " · � � ��- ¥ 8- : J 3·14. METER PCB Ass'y 1-'901 Mounted P901 Not mounted...
  • Page 112 MON BUSS PCB Ass'y REF. NO. PARTS NO. DESCRIPTION Au'y 52001 57200 PCB IM·306) 5200157210 PCB Ass'y IM·312. M·320l 52101 57200 PCB CONNECTORS IM l P551 -P654 5336166400 4P P555-P558 5336166300 3P (M) P559-P562 5336166600 6P IMl P563 5336166900 9P IM l P564 5336166600 6P IMl P565...
  • Page 113 3-15. TALKBACK PCB Ass'y (M-312, M-320) TALK BACK LEVEL STE R EO AUX 3 AUX 4 AUX 2 n n n n 3 - 1 8...
  • Page 114 TB PCB Ass'y (M-312, M -320) REF. NO. PARTS NO. DESCRIPTION PCB As5'y ·········-·--·-- 52001 57600 52101 57600 RC4558P U601 5220406700 TRANSISTORS 060 1 T / B 0602, 060 3 5232007000 2SK304 5230779520 2SC1815 IGRI DIODE 0601 5224015000 1SS133T77 CARBON RESISTORS resistors tolerance type...

  • Page 115: Jack A Pcb Ass'y

    JACK A PCB Ass'y 3·16. 3- 1 7 . JACK B PCB Ass'y OUTPUT JACK C PCB Ass'y 3·18. OUTPUT ;-- · - · - · · ··· 3 . 20...

  • Page 116: Jack B Pcb Ass'y

    JACK A PCB Ass'y TB M I C PCB Ass'y (M-312, M-320) REF. NO. DESCRIPTION REF. NO. PARTS NO. DESCRIPTION PARTS NO. PCB Au'y 52001 56900 5200157700 PCB A>s'y 5210156900 5210157700 1 /4" Jack (T RSI 53300 1 1 400 5334041400 XLB (F) J801 -JB03...
  • Page 117 3-19. SUB I N PCB Ass'y L / R / EFF 3·20. TB M I C PCB Ass'y (M-312, M320) TB I N...
  • Page 118 EXT IN 3·2 1 . TR PCB Ass'y (A) 3·22. TR PCB Ass'y ( B ) 3 - 23...
  • Page 119 3-23. POWER SUPPLY PCB Ass ' y 3-24. SW PCB Ass'y (PCB Omitted) REF. NO. PARTS NO. DESCRIPTION PCB Ali'Y 5200145400 IJ, GE l PCB A>•'V 5200145410 PCB Ass'y IUS I 5200145420 5200145430 PCB A>s'y IE, UK, A I 5210145400 SPARK KILLERS Z001 L5052907000...
  • Page 120 3 - 25...

  • Page 121: 3·21. Tr Pcb Ass'y (A)

    POWER SUPPL V PCB Ass ' y REF. NO. REF. NO. PARTS NO. DESCRIPTION PARTS NO. DESCRIPTION IM-308) Elec. C013 52001 55300 PCB Ass'y IJ, GEl 52601 6 1 1 50 Elec. 2.2"F 5200155310 (US, C) C014 5260165052 471Jf PCB Aso'y (M-306) Elec.

  • Page 122: Riaa Pcb Ass'y (M-308) (Japan Model Only)

    3-25. R I AA PCB Ass'y (M-308) (Japan Model Only) PHONO I N PHONO OUT R IAA PCB Ass'y (M-308) (Japan Model Only) Ass ' v OESCR IPTION PARTS NO. PARTS NO. OESCRIPTION REF. NO. REF. NO. 52001 63600 CAPACITORS 52101 63600 C951.

  • Page 123: Schematic Diagrams

    SCHEMATIC DIAGRAMS 4-1. WI RING DIAGRAM (M-308) TR Pal TR Pal TR Pal ASS'Y IAJ ASS ' Y IBI /JSS ' Y lA) " r--------- , !JAPAN IIQS. CK.Yl r---------------- r-------- INP JACK PC8 ASS' Y �� I "'z !,.ot-t! •...
  • Page 125 4-2. WIRING DIAGRAM IM-312) TR PCB TR PCB TR PCB ASS'Y CAl ASS'YCBJ ASS ' Y CAl -------- �� � � §B �� ..INPUT PCB ASS'Y - - - - - - - - - - - - - - - -- - - - ----- - - - - - - - - - - - BUSS ii! iiii m PCB ASS'Y...
  • Page 128 r· ·: METER ·-, METER LJ[ . ME T ER • • AS&Y ASS ' Y ASS ' Y • · ' ..J • - 1!1 lflll lt • llll • • •. ·' . --- - - ' - _ - �...

  • Page 129: Input Pcb Ass'y

    4-4. I NPUT PCB ASS'Y UIOZ Ul03 UI03 QI03 QIC 0101 0102 30d8 JIOI ()10! =Q� fJ r• :... !? CIO� 10-'filV AIOl '"' " JI02 0102 IO• �!4��� RIO! RI09 coos Rl06 2.411 ..RIIO • 10/IUV Jl04 RI04 CI04 RI04...
  • Page 130 UIOI Ul02 QI02 0104 107 0105 0106 0108 0109 ClOT 1012�V ..----; Clll UIOI Rl2!1 3.9k ,.,,. 1 1121 Q I 02 cu• . L} . Cll� 100� Cll6 47/2t\V 1000/8.3Y U I 02 0121 tOO� 0120 Rl21 Rl22 Rl24 "'"' 1,81c...

  • Page 131: Buss Amplifier Pcb Ass'y (M-308)

    4-5. BUSS AMPLI F I E R PCB ASS'Y ( M·308) U201 U201 0203 0201 0202 f� Z?. INF! ·{: · UZOI"'-0203 0.01 <11/Z!>V 0.01 Poqa 4 - 1 - I�V �15V R202 n I NF I R203 22k R205 39k "' tz06 "...
  • Page 132 U202 U203 U202 ·-· · - · ·· ... · ·· -- ·· - ·· -· · - ···· - � , , R212 &.Bk R2l4 IOk 1,2,:5, C211 ""' rPG M IQ(V25\I' 1.. --- ...1 C210 lOOp 5,6,7 R213 2.4k C21l R217...

  • Page 133: Buss Amplifier Pcb Ass'y (M-312/M-320)

    4-6. BUSS AMPLI F I E R PCB ASS ' Y (M-31 2/M-320) U201 U201 0203 0201 0202 l'D.. 2: Z ;Ji j I.IFl ... I�V 0.01 J201 [ " TO PIN 8 OF U201 '\.0203 47125\' C201 0.01 O.QI M-312: czoz Ow5)
  • Page 134 U202 U202 U203 r · -� LT�S.fRfJ 1 , 2 , 3, 4 1212 6.8k R214 iOk J206 1 , 2, 3, 4 [�ci��� � "t � C 2 1 1 47p R213 5, 6,7,8 fl2 17 C212 100r2sv U202 I, 2 , 3, 4 U202 11121...

  • Page 135: Auxiliary Pcb Ass'y (M-308)

    4-7. AUXI LIARY PCB ASS'Y ( M-308) U302 U301 U302 u� u306 U305 U306 0 301 030 2 U301 Pap •HOlD· I I · •o.�•• · � '] IOOIIGY f'o!II 4-ISI8-31 •u• 1 �!.07 (fP!(T J Pait UMUT D · -I(C- SI) MOSTI•...

  • Page 136: Auxiliary Pcb Ass'y

    4-8. AUXILIARY PCB ASS'Y (M-31 2/M-320) U301'\.U306 U30l"'U306 ,- - --­ TO�IMIOF " '"'' ..• U)()l -.. U3 0& JlOI " " &f/t��� TO PIM40F '" Ul01 "-Ul<>ll ..� · ­ (JI7 ..- . P303 ..·...

  • Page 137: Balanced Amplifier L Pcb Ass'y

    4-9. BALANCED AMPLI F I ER L PCB ASS'Y U701 U701 R 70 � l O O p 6 Bk R707 R705 BAL-UNBAL C704 l O O k R706 J&'l!� C703 R7 1 0 10/ 16V 5701 U701 U701 < l O O k R701 470k...

  • Page 138: Balanced Amplifier R Pcb Ass'y

    4-10. BALANCED AMPL I F I E R R PCB ASS'V U721 U 72 1 R725 R727 G.Bk C724 lOOp R726 BAL-UNBAL C723 C 726 R730 5721 U721 U721 1 1 t 2 1 M - 3 0 8 : Poge 4 - I I I O - I I 1 2 1 2 1 M - 3 1 2 :...

  • Page 139: Mono Amplifier Pcb Ass'y

    4-1 1 . MONO AMPLI F I E R PCB ASS'Y (M-308) U741 U742 U741 U742 R747 6.Sk R749 C744 lOOp C745 47p R748 C743 BAL- UNBAL C74 6 R752 I0/16V R743 470k U7 41!2121 R750 R744 R746 P7A2 47 k 2.4k lOOk 5 .1k...

  • Page 140: Mono Amplifier Pcb Ass'y (M-312/M-320)

    4-12. MONO AMPLI FIER PCB ASS'Y (M-312/M-320) U741 U742 U742 U741 R747 6.Bk R749 BAL-UNBAL C744 C745 47p lOOp R748 C746 R75 2 C743 i0/16V 100/25V 5741 SAL I N R743 U741tt12l 470k U74lf212l lOOk R750 R744 R746 P742 2.4k S , l k lOOk R745...

  • Page 141: Monitor Pcb Ass'y (M-308)

    4-13. MONITOR PCB ASS'Y (M-308) U403 U404 u� 0400 Q404 U401 U402'\tU404 0402 Q401 0401 [)402'\t040!5 · l 1'40 3 .,..0 !'ofi "·I IC•IOJ AUX 1 · 2 ____/ _ ·-��-- --� ... 3 . )-·_ , . , _ , , "W - ·] .

  • Page 142: Monitor Pcb Ass

    4-14. MONITOR PCB ASS'Y (M-31 2/M-320) U404 � IM03 0402 U401 U403 U402.., U 404 Q40I 0404 0401 0402"-040& uoo o to �·• • •• uooo , •- : : : : : j · · " I ..,..
  • Page 143 4·15, METER PCB ASS'V U901 Q901 Q903 0905 0901 090<: R917 090 3 R918 R921 R 913 R915 11-308 : CH I >age 4-13 (B,C-3,4l C907 11-312: R914 R916 P oge4 -14 181C - 3 , 4 l R CH I PEAK 11-320: •age 4·14...

  • Page 144: Meter Pcb Ass'y

    U901 0902 0904 0906 0903 0904 R919 0904 R922 P EAK C 902 R908 C9 04 7 22 , f ,2 5V R 910 2.2k R904 1 .2k :905 R902 R906 0903 R912 22/IOV lOOk J .2k M-308: Paga 4- l ( A - I l l M-312: Page 4 -2_1 A- I I l M-320:...

  • Page 145: Talkback Pcb Ass'y

    4-16. TALKBACK PCB ASS'Y (M-312/M-320) lJ60 1 0602 0603 0601 0601 C606 C607 R608 C608 TB MIC 0601 CG03 CONNECTOR 1 0116¥ R60 9 R603 C605 C604 R604 4.7 k lOOk M-3 1 2 : Poge 4-2 (E-10) R607 M-320: Page 4-3 ( E -10) R606 50k f RD)
  • Page 146 U60 1 R611 3.3k C6 09 & R601 22 1NF l C610 C601 R612 lOOk C602 +15V •ux euss & -15 V 221NFI R602 •ux auss 2 M-312 : 4 - 2 ( E-I O , I I l AUX BUSS 3 Page M-320: Page 4 - 3 ( E-10,1 1 ) AUX BUSS 4...

  • Page 147: Power Supply Section (M-308)

    4.17. POWE R SUPPlY SECTION ( M-308) 0004 DOO! & "''" U. S . A . , CANADA (N !WilTl GENERAL EXPORT SW PCB ASS'Y &SOOI JAPAN '"' Lt\=� EUROPE 0003 W03C NJM79MI!lA 0002 DOO Z , KBI'C 0001 UOO I NJM18MI!SA 0001 2SAI264101...
  • Page 148 uoo2 0002 0003 Q007-v0014 0001 0007'\. 0014 000 2 0003 u004 uoo3 uoo r )00 [ 0006 ,- -- --, � 0002 &. :-� - , TR PCB ASS'Y ( B l TR PCB ASS'Y ( A ) rR PCB ASS ' Y (A) I r�l ooo•...
  • Page 149 4·18. POWER SUPPLY SECTION ( M-31 2/M-320) .&. " l r · SW PCB ASS'Y TR PCB !f\SQOI ,. [ i'OW£ii1--, PCB ASS' Y 2"!0V 11'1£01 TOOl ""'' 0,0"17121)0V IN lwtiTI GENERAL EXPORT SW PCB ASS'Y ,--- .&. .&.. SOOI &...
  • Page 150 1.1004 U003 UOO I 1.1002 Q002 Q007-vQOI4 000 7 '"V 0014 Q003 0002 0003 TR PCB ASS'Y (9) ��� ASS ' Y (Al 0002 """ ..47/Z5V -I !IV "' ,�, .... . C017 "'' 4 - 18...
  • Page 151 4·19. R I AA PCB (M-308) (JAPAN MODEL ONLY) U951 U952 R969 R973 270k C961 C965 C969 R961 0.0033 0.012 R981 220/6.3V C9 73 10125V U95l R957 l212l :-pH Q NO TNi \0/16V A977 ••• R965 R953 C957 lOOk L - - - - - - -' 470k J951 R974...
  • Page 152 4-20. I nternal Block Diagrams NJM78M06A NJM4558 NJM78M15A NJM5532D NJM79MOO NJM204 1DD NJM4560DX NJM072DE 78M06A 79MOO 78M 15A LC4966 SW D SW C CONT A CONT D Vs s ..J CONT B CONT C SW B SW A ____ 4 .

  • Page 153: Block Diagram (M-308)

    4-20. B LOCK DIAGRAM ( M-308) iiii U 1 ii II � """ · ?fJ - : e : � : : _t;:_ J- I. UNIT J. INPUT B:IUAUZEII 200 H: '\.<1Utl Od8V ,. l v- >iiGti ·· 50�., 1 -tii · 0 <18�...
  • Page 154 ·············-·-·-·-·-·-·-·-·-··-·-·-·-·-··--···- 4 . 21...
  • Page 155 4-2 1 . BLOCK DIAGRAM (M-312/M-320) �- (.�.t'J!.f.(( ,i] - - - - -- _ _ _ 0 ..0.7751/ml [Jf.�)l�j o.., . o.nsvro... :--- .."""'"""" "" , . ·-· ... . . ] .JM: I( ;;-., 114 M...
  • Page 157 DIAG RAMS (M-308) 4-22. LEVEL MAIN SIGNAL FLOW C�Do ' ·���� LOW MIO HIGH F- 115 -(§-!ISJ MUT£RPQ ASt'Y = :" r - - - - - - - - - - --- --, � · · · - : , 1 r.���...
  • Page 158 !iii ii II II ! i ...,. , 110111 1 [f�� I N_: .., _. , fiiE'1'(Jt PC8 ..,. j - - 1 [�T�\!$..MJ , .._ . ST£1!ro '"" � +>0 :>GM/STER E O MAST E R ..
  • Page 159 EFFECT RTN I MONITOR SIGNAL FLDW 1 ··· ··· · · · · ·· CEff E< T iit!D --- , [Eii � ] 10.1 �o---- '1'lrl HOoi8V l l [�!t1�J L.. � >£f � �i � - -- - - --- -- - - - - - - - -- - - - - - - -- -- -- -- -- c---- - - - - + 10 ---- -----...
  • Page 160 [�@J�MJ I O <t8u l 1 -t0ev1 FROM TO MON EFF ECT EXT I , 2 I I "lJX t-IO IIIVI STER'£0/MONO/ r--- � [ii.!lif.M !;] 10.1 1-10�1 < I ' , � 1 r�-=-�-r� J tOdlu;l 1-IOdiVI 1-IOdiVl [i>iicj jESJ IIM"IC In UM'+1.5WJ >---- FROM SOLO CONTROL...
  • Page 161 4-23. D I AGRAMS (M-312/M-320) L E V E L MAIN SIGNAL FLOW LOW MID HIGH r"TAIM'l : '-"' · !lJ!!: . J MASTfR PC8 AW'I' = :fiM """ ••• HIGH MIC ATl -·· 1··'(. TOEff'f LINE IN -��� e MIC 'mlM •••...
  • Page 162 LS!�. · �J 1+4-! 1-IDCJ <+-"�"'"' """" "" PGM MASTEJttSTEREO TIAOX IWSS """" OUT " PGM/ST£8 ••• · 00 TO STEAIEO 81JSS F'GMISTEREO 1-on..ev• FAOM ..• PGlf Qfl lAI't: IN III AS TER ··· _ .., -·· LEVEL 4 . 25...
  • Page 163 EFFECT RTN I MONITOR SIGNAL FLOW 10481 ----- I..J/).2dBVl + ;-E FFfcT- RTN tOoiBu .. __ _ _ _ _ _ _ _ , r()-SENS{. MONITOR f-�diVJ SEL E CT T/B IN <>-, IOdll l �� ... L---------�=.:: TIS CONTROL EFFECT ------------, SUB IN/EXT SOLO...
  • Page 165 TASCAM TEAC Professional Division M·300series SALES OFFICE: 4 - 1 5-30 SHIMORENJAKU MIT AKA TOKYO PHONE (0422) 45-7741 TEAC CORPORATION MAIN OFFICE: 3-7-3 NAKACHO MUSASHINO TOKYO PHONE (0422) 53-1 1 1 1 TEAC CORPORATION OF AMERICA 361 0 NASHUA DRIVE UNIT 1 & 2 MISSISSAUGA ONTARIO l4V 1 L2 PHONE 4 1 6-673-3303 7733 TELEGRAPH ROAD MONTEBELLO CALIFORNIA 90640 PHONE ( 2 1 3) 726-0303 TEAC CANADA LTD.

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