Teac A-280 Cassette Recorder Service Manual (Teac 1972) 电路图 维修手册.pdf

RadioFans.CN 收音机爱 好者资料库 ) TEAC OPTIONAL TEAC CORPORATION SALES OFFICE: SHINJUKU BUILDING 1-8-1, NISHI-SHINJUKU, SHINJUKU, TDKYO TEAC HONGKONG LIMITED ROOM NO. 1105 MAIN OFFICE: MELBOURNE PLAZA, 33 QUEENS ROAD C. HONG KONG MC2800El00 A-280 CASSETTE RECORDER SERVICE MANUAL U.S. DISTRIBUTOR: TEAC CORPORATION OF AMERICA 7733 TELEGRAPH ROAD MONTEBELLO, CALIFORNIA 90640 U.S.A. EUROPEAN DISTRIBUTOR: TEAC EUROPE N.V. KABELWEG 45-47, AMSTERDAM-W. 2, HOLLAND RadioFans.CN 收音机爱 好者资料库 TRACK TYPE: HEADS: TAPE: TAPE SPEED: FAST WIND TIME: FLUTTER: MOTOR: POWER REQUIREMENT: WEIGHT: SEMICONDUCTOR COMPLEMENT: BIAS FREQ.: FREQ, RESPONSE: SN RATIO: ERASE FACTOR: CROSSTALK: OUTPUT (DIN) : POWER OUTPUT: PHONE: MIC: LINE: SERVICE DATA Four track, two channel stereophonic REC/PB Head xl (Permalloy type). Erase Head xl Cassette type C-60, C-90 1-7/Sips 3kHz30Hz Within 100 seconds for C-60 Bellow 0.3% rms Flutter measured according to weighted NAB standard using TEAC flutter free test tape. Four pole hysteresis synchronous outer rotor type, AC lOOV drive 100 117 200 220 240V AC 0/60Hz 20W 5.4kg (12 lbs). Speaker 2.5kg Nineteen silicon transistors. Two zener diodes. Six diodes. Two silicon stacks. Two thermistors. 55kHz5kHz Refer to FREQUENCY RESPONSE LIMIT 45dB or better (overall) Reference level (2% THD) to unweighted noise. Using TEAC record test tape MTT-501HF. 60dB or better at lkHz Between channel; Adjacent track; 30dB or better at lkHz 40dB or better at 125Hz 0.3V/10kn max.(-2dB) SW/Sn x2, music power 0.3mW/Sn (-24dB) -70dB/600Q (0.3mV/600Q) min. -18dB/100kO (O.lV/lOOkO) min. The above technical data is subject to change with the incorporation of future modifications or improvements. Since this technical data is for use by service qualified personnel it may differ in some respects from that depicted in advertising material or that found in the owners instruction manual. NOTE OdB = 0. 775V J-9 llll I -1 Dimensions RadioFans.CN 收音机爱 好者资料库 CASE REMOVAL 1 BOTTOM COVER REMOVAL 2 TOP COVER REMOVAL I COMPONENTS LOCATION TENSION CAPSTAN COUNTER L l 02 L l 03 L203 L202 PULLEY BELT BELT MUTING SWITCH ELECTRICAL ADJUSTMENT CHECK STEP CONTROL Ii SWITCHING TEST SIG AL ADJUSTMENT ltEADl G REMARKS SETTING 1 PLAYBACK PERFORMANCE 1-1 Head Azimuth OUTPUT LR cont to Azimuth adj. Azimuth adj. Maximum Adjustmnt max. signal lOkHz screw (M 826A) (MTT 116L) TONE SW to CLEAR Connect M 826A(level meter) to DIN jack #3 or #5 1-2 nct Operating ref-VR 101 /201 -2dB Levtl Se erence signal (M 826A) 333Hz/OdB (MTT ll 6L) - 1-3 5PK1fied Adjust OUTPUT cont Adjust OUTPUT -BdB OUtpvt Level cont for (M 826A) s specified output 1 evel l-4 vu ,-ie OUTPUT cont should VR 103/203 0 vu 100% -ntn,1on specified level set (VU meter) ,_ 1-5 freq Resse Freq. response l 590s+ l 20s See freq. Operational check ClNlck check signal Fixed response only. If is not l OkHzo,40Hz equalization limit readjust azimuth /-1 OdB (M 826A) or clean the head. ,_ 1-6 Ltvel Varfation 333Hz ST TAPE MTT-111 FREQ. COU-lTER TAPE SPEED : ! I ! Atul.l,i:;, r-1 I .;1._ R . I .i a:, I ? .:.W.:.:)1 1oeoa I ID111our I ! 1 I ,_ , -. ) ) H ii - I : r-,t.l.10 ), _ l ,. 5;: .- ,._ . 1 . : ? !: r:- : I l o10,_ ,i b(g,;, -H, O / ; I l L. . J A i i I -0101 ) ; g r, 0103-) 5 NQ1oau -l . 1 -i: :112 -t a a:I I ; : I :; : : ;!; i I< 7; ! I !J J ; o .:; Ii I; 1i Qao1 I ila: j;:-u ST 2 I i R,17 2 u t-r- g I g I I iM012il( 1Uol221C C.ci1) -L -J 6 ! i I rrY, 101 = _ .- ; - I : I 1 l(J,lli ., i 1,. i : ; : 5 ; ! l; : , : V . ,., : - g 1 1 , Ii i s .r .Lr 2! . . =: , . o : ! s- . L;,-J ; .; Q 0 N : : ! ; : : it -1 1 o:l : : : I : a :uR I ; I G- . u ! er: -= 0: 3 ! II a a :!. i , 0 = IH r -, 0 1 g Um I $ .: er: I lu ,! I ,! : i . 00: l I lfl v,oum I L-ii: 0:;J L.tt-I . 0 N j I e ! -; 0.001/ R,u I.ZIC I ! - ,i;: o,: rt . 41IC r-, 1 I i s o ruiov R111 6,!IIC I I .i=.:! IL) IMIOI I _ _ _ _ _. -. -._ . -_L _ _ . : El ! i t;-. m K : :- : -, fff il; r-rrmr-ni-rn-r-nr-nr; ! 1 !M U ! 1 - rF! : . -. i REClY, C: I I 11: I L -ll ,11 I ,_, tti-.:1- . -, . ,., I HEAD(R) ,_.) r 1 I h3 r;l :1-( -1,. _ .J .-, < I I I T H10,-b I I I I I I I : 1 1 I !NORMAL! I I I In I I I I I I ClllI I I,: I , 0 ., J I I tiirtt1 I RUlel!M S101 J (< l . , . I I , . ,; J : F ,II I L-J L J ) l ! -7 I ,.-. -, . ,-, - .l r-, I ,-,-e,.,._ _ , I I r-.,:._ I T,o, JI04-C -11!0.-: IL) I J004 I I i I 3 I I ! :JL %;t;J=: I I I h H;,01-a IR) I I - I I I I I I I I I .J _J I I ltlGe UOlll2W) I I -U/ I I I ., 11.iiv I I 1, ., I -_. OIOI 11 - . I 1 ,. t!: I I - . f I (Fl) J104-d l!RA!E HEAD l g :!IE li 11 ,. -, !,_ I I . . J L 01- ( !?Cto1ZM)fM11j 5 i 11 : I : : J , 11 1 _, _ r :iv I -;.:.:- X it- 1 i T i I O JI I I o t I 1 -. L-;-7 V Q 6 I I V I . -r ,-11, I I C101l/:10V I I ,! L-J I I r -. 9TMIIIIIH 1 I I I I I ill I (SRI IR) + J104 H1-01: I I -rt) l o I -.J L-,._. _ .J 0OV -C . T . J . I l (0.111) ll J I - I TAPE RUN METER LAMP REC I u -,.1 -1 0.U I T 6T : L- PL.IO I PltOI Pl.101 PLI04 f I I _fl -I f r<O .,:. IA I I FIOI ACPOWERIN =t _ _) -I NI JIO . NOTES Scherwat1c diagram shown in playback mode. Unless otherwise specified: All rMlstor value!. in otuns, 1/4 watt, k, 1,000 ohril!. A11 capacitor values in iaicro farads. TONE switch shown in the CLEAR position. L- . . . I -I 1-1 ;J J1oe A-280 STEREO CASSETTE RECORDER PARTS LIST ALSO APPLICABLE FOR A- 210 AND A-220 REPLACEMENT INFORMATION Replcement part are available through your nearest TEAC dealer or directly from the TEAC office. Changes are constantly being made to make TEAC products better and more reliable. Therefore, when ordering parts, always include the following in- formation: MODEL SERIAL NO. REF NO. PART NO. D ESCRIPTION r-NOTE- - 1. Tape transport exploded views are illustrated in the order that the machine is assembled. 2. The exploded views in this manual are for A-28O. Since A-21O/A-22O is almost identical to A-28O, only impor- tant parts of A-21O/A-22O are included in this list. TEAC CORPORATION EXPLODED VIEW A-2eo 1 2 TAPE TRANSPORT 1 2 r- 1 I I I I I I I E-3 30 1-,-3 I I I I I I I L-2 4 - . M2.6 X 6 2-M2.6x 6 M 0166 POINT I TAPE TRANSPORT 1 1. FAST WIND LEVER REF. TEAC NO. PARTS NO. DESCRIPTION 1-1 50845790 Switch Actuator Plate Assy 1-2 50845240 Fast Wind Lever Assy 1-3 50846210 Spring, Fast Wind Lever 1-4 50846220 Spring, FW Lever 1-5 50845840 Spring, Switch Actuator 2. IDLER ASSV REF. TEAC NO. PARTS NO. DESCRIPTION 2-1 2-2 2-3 50846100 50846180 50845970 Idler B Assy Spring, Idler B Idler A Assy 3. PAUSE LEVER REF. TEAC NO. PARTS NO. DESCRIPTION 3-1 3-.2 Pause Arm Pause Lever 4. PILOT LAMP REF. TEAC NO. PARTS NO. DESCRIPTION 4-1 50845230 Chassis Mount Bracket 4-2, 50828040 Mount Bracket, Lamp 4-3 50414510 Lamp, 8V 4-4 50415250 Socket, Lamp 1st 1st 1st 1st 2nd 2nd 2nd 2nd PARTS LIST A 280 3rd 3rd 3rd 3rd EXPLODED VIEW A -280 7 a Ef.2 M-0190 TAPE TRANSPORT 2 6 M-0187 g 4 2-M2x6 2 E-2 2.5 $ M-0191 PARTS LIST A-2B0 TAPE TRANSPORT 2 5. METALLAIZED HOLDER CCAPSTANJ REF. TEAC NO. PARTS NO. DESCRIPTION 1st 2nd 3rd 5-1 50120151 Metallized Holder 6.REVERSE SWITCH REF. TEAC NO. PARTS NO. DESCRIPTION 1st 2nd 3rd 6-1 50441240 Switch, Reverse 6-2 50845390 Plate, Reverse Switch 7. BRAKE ASSV REF. TEAC NO. PARTS NO. DESCRIPTION 1st 2nd 3rd 7-1 50845430 Brake Lever, Left 7-2 50845440 Brake Lever, Right 7-3 50845960 Braker Retainer 7-4 50845450 Spring, Brake Lever B. PAUSE LOCK PLATE REF. TEAC NO. PARTS NO. DESCRIPTION 1st 2nd 3rd 8-1 50846430 Pause Lock Plate 8-2 50845500 Tension Spring, Pause Lock 9. HEAD BASE ASSV REF. TEAC NO. PARTS NO. DESCRIPTION 1st 2nd 3rd 9-1 50845551 Head Base Plate 9-2 50845540 Spring, Rec/PB Head 9-3 50660410 Head, Rec/PB, Permalloy (A-210,A-280) 50660420 Head, Rec/PB, Ferrite (A-220) 9-4 50663070 Head, Erase 9-5 50845551 Head Base Actuator Plate 9-6 50845620 Spring, Head Actuator 9-7 50845631 Head Actuator Shaft 9-8 50846440 Torsion Spring, Pinch Roller 9-9 50140195 Pinch Roller Arm Assy EXPLODED VIEW A 280 13 TAPE TRANSPORT 3 10 j:.5 I M-0192 14 11 E-2 M-0193 M-0196 ) TAPE TRANSPORT 3 10. EJECT SAFTV BRACKET REF. TEAC NO. PARTS NO. DESCRIPTION 10-1 50845930 Eject Safty Bracket 11 . REEL TABLE ASSV REF. TEAC NO. PARTS NO. DESCRIPTION 11-1 50845440 Reel Table Assy, Right 11-2 50161823 Reel Table Cap 11-3 50846261 Reel Table Assy, Left 12. EJECT ASSV REF. TEAC NO. PARTS NO. DESCRIPTION 12-1 50845850 Eject Assy 12-2 50845941 Spring, Eject 12-3 50845950 Spring, Hook 13. MOTOR REF. TEAC NO. PARTS NO. DESCRIPTION 13-1 70701520 Motor 13-2 7111190 Rubber Grommet, Motor 13-3 70701520 Pulley, Motor 14. CASSETTE CARRIER ASSV REF. TEAC NO. PARTS NO. DESCRIPTION 14-1 14-2 14-3 14-4 14-5 14-6 50845731 50828970 50828960 50845801 50845791 50845761 Cassette Carrier Assy Tape Guide, Right Tape Guide, Left Spring, Cassette Carrier Cassette Carrier Shaft Carrier Mount Bracket 1st 1st 1st 1st 1st PARTS LIST A-2B0 2nd 3rd 2nd 3rd 2nd 3rd 2nd 3rd 2nd 3rd EXPLODED VIEW A-280 TAPE TRANSPORT 4 16 M2.6x6 M2.6x6 I 2-M2.6 x6 M-0199 TAPE TRANSPORT 4 15. TENSION PULLEY REF. TEAC NO. PARTS NO. DESCRIPTION 15-1 50826460 Tension Pulley 15-2 50846190 Spring, Tension Pulley 16. CAPSTAN FLYWHEEL REF. TEAC NO. PARTS NO. DESCRIPTION 16-1 16-2 16-3 16-4 16-5 50845680 50845690 50123251 50845160 50845640 Flywheel Bearing Plate Thrust Plate Belt, Capstan Belt, Fast Wind Flywheel Assy 17. CASE MOUNT BRACKET REF. TEAC NO. PARTS NO. DESCRIPTION 17-1 50845810 Mount Bracket, Case 1B. INDEX COUNTER REF. TEAC NO. PARTS NO. DESCRIPTION 18-1 50845810 Mount Plate, Counter 18-2 50829251 Index Counter Assy 18-3 50274 712 Belt, Index Counter 19. INDICATOR LENS REF. TEAC NO. PARTS NO. DESCRIPTION ) 19-1 50827670 Indicator Lens 19-2 50827680 Mount Bracket, Lens 1st 1st 1st 1st 1st PARTS LIST A-280 2nd 3rd 2nd 3rd 2nd 3rd 2nd 3rd 2nd 3rd EXPLODED VIEW A-280 TAPE TRANSPORT 5 20 M3x6 M3x 4 21 E-3 E-3 f) /A 4 /4 2 I I . M-0203 PARTS LIST A -280 TAPE TRANSPORT 5 20. PUSH BUTTON ASSV REF. TBAC NO. PARTS NO. DESCRIPTION 1st 2nd 3rd 20-1 50829870 Push Button Assy 21. RECORD LEVER REF. TEAC NO. PARTS NO. DESCRIPTION 1st 2nd 3rd 21-1 50845390 Record Stopper 21-2 50845400 Spring, Record Stopper 21-3 50845370 Rec Lever 22. PUSH BUTTON SPRING REF. TEAC NO. PARTS NO. DESCRIPTION 1st 2nd 3rd 22-1 50846240 Spring, Head 22-2 50845480 Spring, Pause Lever 22-3 50845383 Spring, Rec Lever EXPLODED VIEW A-2B0 AMPLIFIER CHASSIS / / 30 ,/ - / / ; . - ,l i -, 21 ,rjrr, 33 M-020!5 ) AMPLIFIER CHASSIS REF. TEAC NO. PARTS NO. DESCRIPTION 1st 23-1 23-2 23-3 23-4 23-5 23-6 23-7 23-8 23-9 23-10 23-11 23-12 23-13 23-14 23-15 23-16 23-17 23-18 23-19 23-21 23-22 23-23 23-24 23-25 23-26 23-27 23-28 23-29 23-30 23-31 23-32 23-33 23-34 23-35 23-36 23-37 23-38 23-39 23-40 50331602 504,90430 50490410 50829780 50490460 50490420 50447290 50447210 50162470 50561980 50561990 50490450 50555620 50829791 50829761 50451310 50412143 50412170 50421300 50430010 50233530 50271670 50535220 50829750 50447250 50829711 50828180 50430230 50432440 50828150 50826850 50331610 50829770 50452540 50330971 50415250 50414510 50414310 50828190 50581401 50828170 50535230 50411010 50411130 Shield Paper, Power Ampl. PC Board Assy, Preampl. PC Board Assy, Power Ampl. Heat Sink, A PC Board Assy, Thermistor Spacer PC Board Assy, Tone SW Switch, Lever, TONE (A-280) Switch, Lever, TAPE (A-220) Transformer, Power (A-280 EX) Transformer, Power (A-210,220 DM/TEAC 210,220) Transformer, Power (A-210,220 EX) PC Board Assy, Capacitor Cap., Elec. lOOOF 50V Muting SW Actuator Assy Stand-off Pin Jack Strip Voltage Selector, with Fuse (All model EX) Fuse Holder (A-210,220 DM) Fuse Holder (TEAC 210,220) Connector, DIN Bracket, DIN Connector Grommet Linear Potentiometer, 50kQ A, x2 (Rec.) Bracket, Power Ampl. Switch, Rocker (Power) Chassis, Amplifier Insulator Sheet, B Phone Jack, Mic. (2 cond) Phone Jack, Headphone (3 cond) Bracket, Phone Jack Spacer Shield Paper, Jack Heat Sink, B Terminal Strip, lLlP Bracket, Lamp, C Socket, 8V Lamp Lamp, 8V (VU-Meter) Lamp , (RECORD) Cushion Meter VU Meter Sheet Insulator Sheet, A Linear Potentiometer 20kQ A, x2 (PB) Fuse lA (A-280 EX) Fuse 0.5A (All model except A-280 EX) 2nd PARTS LIST A-260 3rd EXPLODED VIEW AND PARTS LIST A-2B0 TAPE TRANSPORT ANO AMPLIFIER REMOVAL M3x6 REF. TEAC NO. PARTS NO. DESCRIPTION 1st 2nd 3rd 24-1 50490350 PC Board Assy, Bias Osc. (A-280) 50489830 PC Board Assy, Auto End Stop(A-220) 50490141 PC Board Assy, Start Motor(A-210) 24-2 50828871 Angle, D 24-3 Tape Transport 24-4 50845420 Spring, Wire Linkage 24-5 50845411 Wire Linkage 24- 6 Amplifier Chassis EXPLODED VIEW AND PARTS LIST A-280 6 I 1 6 6 M-0110 M3x6 REF. TEAC NO. PARTS NO. DESCRIPTION 1st 2nd 3rd 25-1 50829390 Trim Case Assy (A-210 only) 50829400 Trim Case Assy (A-220 only) 50829650 Trim Case Assy (A-280 only) 25-2 50828540 Cover, Cassette Compartment 25-3 50828830 Knob 25-4 50829591 Escutcheon, VU-Meter 25-5 50829561 Lens, Record 25-6 Chassis, Tape Transport 25-7 Chassis, Amplifier EXPLODED VIEW AND PARTS LIST A-280 TRIM PARTS 2 REF. TEAC NO. PARTS NO. DESCRIPTION 26-1 26-2 26-3 26-4 50829761 50829611 50829700 Stand-off Wooden Case (A-210,A-220 only) Wooden Case (A-280 only) Washer, Flat 3 x 0.5t M3xl0 1st 2nd 3rd PRINTED CIRCUIT BOARD AND PARTS LIST FOR A-2101 A-220 AND A-2B0 REPLACEMENT INFORMATION Replcement part are available through your nearest TEAC dealer. or directly from the TEAC office. Changes are constantly being made to make TEAC products better and more reliable. Therefore, when ordering parts, always include the following in- formation: MODEL SERIAL NO. REF NO. PART NO. DESCRIPTION TEAC CORPORATION 0 a: ( 0 o m 0 D. <I D QI a: w - IL - .J D. <( w a: D. ll A K C2oe22 Q R2oel,?R) g .;/6-3V C2,047/IGV -ur-o: C .i._ ,-,.= 0 :/= .I, i- _,. U 2 ,v, f, f.,. ,(-o ._ 2 = f, -C,o : =Wico R2,42IK t :;jf ,g;rV -e-J./-M -!l Gi 2-2/25V!,q oJV/1,4 . - , . R,a.,sK fl vR20,471<. R227,00K L ,lg l f)li ur._ r; o: R21056 c:jf ?-Q R 2 4447K 6 ,. , -. . o o, . -. 0, - :,.t,. - !,_, ,i,. o 1i o,