Teac A-7300 Скачать руководство пользователя страница 9 | Manualshive

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Содержание A-7300

Страница 1: ...tor Capstan all controlled by Integrated Cir cuit IC Logic Circuitry these decks provide highly reliable operation at greatly reduced noise and heat levels With almost all relays replaced by Logic Cir...

Страница 2: ...Weight 62 lbs 28 Kg net Dimensions 21 5 8 H 17 3 8 W 9 3 4 D 548 H x440 W X246 D mm ELECTRICAL _ _ Y TS TST MTTTTT O dB 0 aa Frequency Response Measured at 20 dB below the Spesified level Refer to pag...

Страница 3: ...juster R 154 for Take up Adjuster R 155 for Back Tension C155 Reel Motor L Reel Motor R Reel Motor Drive Unit Power PC Board Ass y Stabilizer Unit Capstan Motor Tape Counter Ass y REAR VIEW Fig 1 1 Ta...

Страница 4: ...rol circuitry 1 Remove terminal A from the Control PC board See Fig 1 2 2 Disconnect the 11 pin connector from the motor Connector Block Adjustment Procedure 1 Remove the rear panel 2 Remove terminal...

Страница 5: ...quency counter to either line OUTPUT jack The indicated frequency should be LOW Speed 0 3000 Hz 10 Hz or less for Fig 5 Tape Speed Adjusters both speeds If necessary adjust adjustable resistors on the...

Страница 6: ...aft 3 Place the unit in the PLAY mode P and holding the spring scale as illustrated slowly draw it away from the pinch roller Do not allow the string to rub against the pinch roller 4 Note the reading...

Страница 7: ...tension of 450 20 g cm calculated value using T R X W 9 Repeat all the above for the REEL SMALL position Reading should be 300 g cm FWNF an TAKE UP TORQUE 1 Place the REEL size switch to the LARGE pos...

Страница 8: ...a thin pencil line PLAYBACK HEAD The forward playback head pole should be even with the top FORWARD of a threaded tape PLAYBACK HEAD The pole of the reverse head should be even with the bottom REVERS...

Страница 9: ...e top of the head Then slide off the shield case C To replace a single head a nut driver is required Remove the 2 nuts D on the defective head through the access hole provided This releases the head f...

Страница 10: ...os on ELECTRICAL ADJUSTMENT Procedure Charts on the next page oscilloscope OUTPUT REPRODUCE PLAYBACK Fig 12 Specified Output Level Position Decrease 2dB 2T Decrease peak 348 A 7300 io A B wn ie io a j...

Страница 11: ...t 31m jack TAPE on Head Assy 3 Both channels on the Oscilloscope to be in Phase 1 Depress REC and PAUSE buttons Bias Trap VTVM or L 503 2 Using TEAC Test Tape YTT 8013 Adjustment Oscilloscope SOURCE L...

Страница 12: ...ips 4T YTT 1002 2 Set output controls to specified level Compare output reading to following charts RESPONSE IN 48 50 100 00 FREQUENCY IN Hz FREQUENCY IN He 7 ips 2T 50 100 500 1K 5K 10K 20K 50K FREQ...

Страница 13: ...ps 27 YTT 8003 RESPONSE IN dB 50 100 500 1K 5K 10K 20K SOK FREQUENCY IN He FREQUENCY IN Hr 50 100 500 1K BK 10K 20K Recommended BIAS and EQ switch settings for various types of tape 1 1 2 mil base tap...

Страница 14: ...oe 10K RESPONSE IN dB 50 100 500 1K FREQUENCY IN Hz 7 14 ips 47 _YTT 8003 me He RESPONSE IN dB 50 100 500 1K FREQUENCY IN Hr cope 3 34ips 4T YTT 8003 Rare 500 1K FREQUENCY IN 10K 50K sO 100 00 1 5K 1...

Страница 15: ...prox 3V present on the SOLENOID DRIVE UNIT J121 Pin 3 Lnefective Q121 or Q122 High Level output voltage not present on the CONTROL UNIT P41 Pin 1 Lnefective CONTROL UNIT Right Reel Motor does not rota...

Страница 16: ...ound distorted Defective Q201 203 205 VU Meter inoperative in TAPE Monitor mode Defective Q306 or associated parts sound is normal Faulty VU Meter ass y Hum in playback signal eeereeeeees Defective Pl...

Страница 17: ...n 12 19 evenable ee Tw MIC MIXING AMP UNIT 12 20 In such a case the entire assembly including the mM Ber URESARAP IAI vie atte 13 20 part requested will be sent to you 11 6 METER PHONE AMP UNIT 13 21...

Страница 18: ...1 EXPLODED VIEWS AND PARTS LIST I 1 CENTER BASE SECTION Exploded Front View 3 B M3x 0 B M26x4 NYLON W SH7KO 25t 41 fosM4x 25 eo 42...

Страница 19: ...4T 2CH 4T 1 22 55507170 Bracket Head Plate 1 23 50220500 __ Spring Head B 1 24 55305100 Plate Head 1 25 55507180 _ Head Shield 1 26 50664520 Head Record 2T 2CH 2T 50664540 Head Record 4T 2CH 4T 1 27 5...

Страница 20: ...I 2 CENTER BASE SECTION Exploded Rear View E 2 2 BSB See 2...

Страница 21: ...tor Assy Socket Multi 117P Spring Tension Arm Actuating Spring Pressure Arm Solenoid not used Spring Lifter Washer Shoulder 3 x 7 Spring Pinch Roller Link Plunger Clamp Wire A Solenoid Piunger B Dampe...

Страница 22: ...oe 2 SF M4x6 f i 3 BSA M3x6 J g 3 ay 2 BSA M3x6 aes 5 Par a 7 4 BSF M4x8 oN el BSA M3x6 3 BSA M4x8 26 PM26xi8 27 4 BSF M4xl0 SG PM2 6x8 S28 y 38 va 2 BSi M3x6 35 oS 2 BSA M4xl0 4 BSAMA4xI0 5 A i 38 a...

Страница 23: ...ge Selector Plug Voltage Selector Switch Slide 6P PC Bd Assy STABILIZER UNIT PC Bd Assy POWER SUPPLY UNIT Stud PC Board A Plug 12P Socket 12P Bracket PC Board B PC Bd Assy REEL MOTOR DRIVE UNIT PC Bd...

Страница 24: ...1 4 AMPLIFIER SECTION 12 w36 os 3 2 Bsa M3x6 oh u a 95 NY 61 3M 46 SS PO BY AS EY xX ES Fee 47...

Страница 25: ...0B 4 26 55305361 Guide Memory Marker B 4 27 55305330 Knob Lower 4 28 50253750 Knob Small 4 29 50444730 Switch Slide 6PDT 4 30 50436580 Jack Pin 4P 4 31 55540820 sAngle PC Board 4 32 51681220 PC Bd Ass...

Страница 26: ...el Chassis R 5 6 55520290 Cover Top 5 7 55340590 Mounting Foot Round 5 8 55530200 Sash Trim Side 5 9 55020080 Panel Assy Side L 5 10 55020090 _ Panel Assy Side R 5 11 50241850 Spacer Sideboard 5 12 55...

Страница 27: ...Casz I750V APSO He ae F Res2 100k a Reee 33K Rew 39 Ww D601 WZ 090 De02 XZ 75 PC BOARD SECTION Diagram Resi iook vg RN Rees 12k Rael 33k oa Q253 E C B 25 493 GR ein 27k R23 18K R285 18k Ree 100 _ Gar...

Страница 28: ...1 3 BIAS OSC UNIT 4 7K 1 2W Rssi 11 4 MIC MIXING AMP UNIT 12 4 7 172W ie KES bZ2 0C24v P LI7 Caor i 1 35V 0 T z Raos 100 2SC1000 GR e E C B_ C40522P 50V0 001 50V P 139 Foil Side Foil Side...

Страница 29: ...3s3zo 4 7 Ts ae i w R334 10 Rase 47 a ats Ok Raa 20K i STs aso Abe BCE ae 8 oreo eae OOeten Rasa 560 MR302 2k B gla car era age eT aise Raso 2 7k R3s2 680 Oo VRass JOOK BY Rese 47k Rag 33k Ras3 tk Cas...

Страница 30: ...6445 F R208 56k eae 725V 47 25V Rais 33k Res 2k R227 R228 recs 5k B Qz208 2SCI3I7 R Foil Side P 133 0 0274 F 50V 0 0056yF 50V 0 001 5uF 50V 100pF 50V Oo fo 2 8 2 2 ON oO o 8 Oo Oo ra Q ue a S ise C503...

Страница 31: ...1 9 SOLENOID DRIVE UNIT O15 _ 2SC IBIS P 121 Foil Side R77 Q73 28C1384 Eterm D7g 1N4006 P 122 Foil Side 15...

Страница 32: ...I3I7 R E C B C 8 Rs9 REO 2 2k 1c44 7402 5 i 35 2 3 os 8 z s 2 od 8 SP 1c47 7427 i IC48 7427 nazE 1c49 7400 3 aed po Pf 873 o C30 auiti o 50 ete Rs7 150 Rse 100 3 SOO PUOMY aes sonsn nn minnananns a E...

Страница 33: ...R SUPPLY UNIT Ds IN4004 es 7 Re 3 3 2W 8 OOI 500V e eet INa004 ae oe maces Rts 22 22Wee WA Gi 001 500v 2A 125V Die FR2 06 oD FR2 06 B C E 029 280288 C22 470 25V _ 0 FR2 06 O17 FR2 06 28 2scezs s m O o...

Страница 34: ...__ Board Terminal A 2 63 51681600 PC Bd Assy Delay Signal Unit 2 64 55541860 Angle PC Board 2 65 51681622 PC Bd Assy CONTROL UNIT 2 66 51670250 PC Board Terminal B 2 67 50436560 _ s Plug Multi 11P 2 6...

Страница 35: ...0 01yF 50V C267 C268 50554260 Elec 33uF 16V C269 C270 50554350 Elec 10uF 50V C271 C272 50554540 ___ Elec 1pF 50V C273 C274 50547370 Dip Mica 270pF 50V C275 C276 50547440 Dip Mica 100pF 50V C277 C278 5...

Страница 36: ...R410 50573520 820k 50573260 68k2 50572580 1002 50573000 5 6k2 50573040 8 2 kQ REF NO PARTS NO DESCRIPTION R411 R412 50572800 82002 R413 R414 50573280 82k R415 50573240 56 k2 R416 50572820 1 kQ R417 50...

Страница 37: ...2260 4 72 50574500 4702 1 2W 50573280 82 kQ 50573060 10kQ 50V 50V 25V 25V 50V 50V 50V 16V 50V 50V REF NO R343 R344 R345 R346 R347 R348 R349 R350 R351 R352 R353 R354 R355 R356 C301 C302 C303 C304 C305...

Страница 38: ...03 R504 50573180 33kQ2 22 REF NO PARTS NO DESCRIPTION R505 R506 50572980 4 7kQ R507 R508 50573160 27kQ R509 R510 50573140 22k0 R511 R512 50573200 39k2 R513 R514 50573200 39k0 R515 R516 50573380 220k2...

Страница 39: ...84 50554950 Elec 22yuF 25V K71 K75 50611270 Relay DC 24V 1 11 CONTROL UNIT REF NO C41 C42 IC44 IC45 IC46 PARTS NO DESCRIPTION 51681621 51671470 ICs 50427250 50427130 50427270 50427120 PC Bd Assy PC Bo...

Страница 40: ...572660 2202 1 4W 5 R33 50572760 5602 1 4W 5 51670680 PC Board R34 50572820 1kQ 1 4W 5 Q161 Q162 50424600 __ Transistor 2SC828 S R35 50572980 47k2 1 4W 5 R161 R163 50572820 Carbon 1k 1 4W 5 R162 R164 5...

Страница 41: ...Cc A MACHINE Truss apping Screw A Typ SUREW Round Head Binding Head Screw Tapping Screw B Type Flat Countersunk SF Hex Socket Setscrew Flat Point Head Screw Hex Socket Oval Countersunk serscrew sc x...

Страница 42: ...Moz J e Bere 2 Aasl C409 38 Raig 1k Can 3 op Hrs C4 Rag Bv 2 y REFS basi oge 6e0 S METER i Bai R377 270 33 W a o Pas We S8FO V 50V RY 3597 Taev vse i I dino 8g Pie fae eens e 23 8V pa Rate y cas oR 3...

Страница 43: ...E TAS aT PTI UREW 10k Gay 8 i Reo 2 2k ps 8 js J8 Js i 560 22 25v Be ep v2 sas I i 42 2SCI3I7 R I one ara ee 1 ois 270 aby nh oe SREOR eh 4 2Sci3e4 a 680n E i Ro eee Tor Q907 Rei2 100k j j Tc Ee ee a...

Страница 44: ...e YD a e PAUSE LAMP 7 __ 042 2SCi3i7 R Ree ion Reo 2 2k SOLENOID DRIVE UNIT T giaoi3 c15 25c1318s OI2I mmo Saree 3 0123 0124 0126 280 288 K r POWER UNIT 1 ro n 4 VOLTAGE fe Se ee ISELECTOR 240v TIS F...

Страница 45: ...vel a So ee el _ ___SS O_ TIMING SEGUENCE CHART FAST FWO REWIND REC MODE SW RECORD SIG EDIT UNIFORM WIND SW Ches CAPSTAN SOL 1 BRAKE SOL CAPSTAN SOL 2 RECORD LAMP PAUSE LAMP 1c4 3 INVERTER 12 C42 NOR...

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