Technics RS-TR979 Service Manual Download | Manualshive

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Summary of Contents for RS-TR979

Page 1: ...5kHzi 3dB 20 Hz 17 kHz 20Hz 16kHz DIN Technics I RS TR979 Area Colour I K Black Type HX Pro headroom extension originated by Bang Olufsen and manufactured under license from Dolby laboratories Licensing Corporation DOLBY the double D symbol and HX PRO are trademarks of Dolby laboratories Licensing Corporation METAL 40Hz 16kHzi 3dB For PP area 20Hz 18kHz For others 20Hz 17kHz DIN SIN Signallevel ma...

Page 2: ... servicing be sure to restore the lead dress insulation barriers insulation papers shields etc 5 Before returning the serviced equipment to the customer be sure to make the following insulation resistance test to prevent the customer from being exposed to a shock hazard INSULATION RESISTANCE TEST 1 Unplug the power cord and short the two prongs of the plug with a jumper wire 2 Turn on the power sw...

Page 3: ... L R R L Stereo mini cables included R L L R PLAY IN Household AC outlet AC 120 V 60 Hz AC OUTLET 3 AC power supply cord included _Stereo mini cable not included REMOTESYNCHRO EDIT Compact disc player not included REMOTE CONTROL OUT The REMOTE CONTROL and SYNCHRO EDIT terminals can only be used with selected Technics Components Please contact your dealer for details The following functions can be ...

Page 4: ...ncy response during recording 11 1 13 1 0 0 DECK 1 Control section continued Controls applicable to tape deck 1 and or 2 Cassette holder Reverse mode selector REVERSE MODE This selector is usedfor selectionof the reversemode for eitherplaybackor recording j Headphones jack PHONES Synchro start button SYNCHRO START This button is used to start a tape to tape recording simultaneously starting deck 1...

Page 5: ... functions as the tapellinear counter display During ATC auto tape calibration displays the status of the ATC operation ATC memory indicator m Flashes duringATC auto tape calibration and then remains il luminated when the ATC operation is completed ATC graphic display Shows a graphic display of the ATC auto tape calibration operation Tape to tape recording speed Indicators x1 One of these indicato...

Page 6: ...mple Performing ATC on tape deck 2 U U U U indicator flashes E j E u u U u CDPress theATC button t I 30 2 20 U O R t Bias setting in progress f J B I 1 C II II II II E i Ju 1 _I t 1 ill ill II l1 II II WIo1 AY CID Equalizer setting in progress U U U U C L Ij t 1 II ill II II ill II W o I AY Level setting in progress E J I II 1 I UU UU E JuLCVCL t 1 iII ill fl ill iH II W1o1 AY R CID ATC completed ...

Page 7: ... entered Write mode At this point the four digit counter will indicate 00 Blinks n n U U U u dB 30 25 20 15 12 8 6 2 rn 2 4 678 I L I I R I _J The counter shows a four digit hex number The two high order digits indicate a ROMaddress and the two low orderdigits indicate the data stored at that address uu H L i 0 9 w h lset these digits using the FF or REW button The high and low order digits of the...

Page 8: ...isplays n n n n u U U U U U U U rd B 30 2S 20 1S 12 10 8 6 4 2 DO 2 4 6 8 L I R I _J Blinks Remove the shorting clip from the Test Mode terminals The FL display will stop blinking Fig 1 t 13 0 1 2 3 4 5 6 7 Low 0 80 68 30 88 1 00 78 68 68 2 DO 68 38 80 FF 3 80 78 64 6C 80 4 EO 38 A8 FF C4 5 7C 64 50 AD 1C 6 F8 A8 80 FF 8A 68 7 F5 00 58 74 2C 78 8 OF 18 88 50 9 28 80 30 72 A 12 88 4A 8 07 96 55 C 8...

Page 9: ...or 6000 Test tape Head azimuth adjustment 8kHz 20dB QZZCFM Tape speed adjustment 3kHz 10dB QZZCWAT Playback frequency response 315Hz 12 5kHz 10kHz 8kHz 4kHz 1kHz 250Hz 125Hz 63Hz 20dB QZZCFM Playback gain adjustment 315Hz Ode QZZCFM Overall gain adjustment and Overall frequency response Normal reference blank tape QZZCRA CrO2 reference blank tape QZZCRX Metal reference blank tape QZZCRZ Adjustment...

Page 10: ...y of DECK 2 is within t30Hz for the value of the output frequency of DECK 1 IRS TRS EVM Fig 1 E HEAD RIP HEAD Azimuth Screw Azimuth Screw Forward Reverse Fig 2 LINEOUT 0 j 1 0 0 l_ _0 OigitallreQuency counler Fig 3 PLAYBACK GAIN ADJUSTMENT DECK 1 2 1 Set the AF oscillator s output frequency to 315Hz 2 With no tape loaded in the deck press and hold the REC button on DECK2 or DECK1 Adjust the test s...

Page 11: ...ndard value 320mV tO 5dB I 4 Apply test signals with the specified test frequencies covering the range from 50Hz to 10kHz whose levels are 20dB lower than the reference signal level 1kHz to the Rec input and record these signals in sequence 5 Play back the test signals just recorded and verify that the levels at the test frequencies fall in the ranges specified in Fig 8 with respect to the referen...

Page 12: ...3 O U_ T OATA I SIP CONV DATACONTROl l c L__ 1 T V 13 114 l 0 D3 UPC 97CA D354 DOL PRO r v NCHRD 1 ED T DECKI osc OSO i OS O EI 16 0 KE SW 035 IID30 ERASE HEAD 1 lle n SO e O 5973 IC O 1 1 ALJ OlSS IS9 SO6 SO CAPSTAN MOTOR AG REEL oi S S30 I mol I OSOI 504 UPCI 9CA DOLBY HX PRO 0303 09 5 1 DEC I M SOL O l l RVSGP S 4 C mID V IVv 1 0 SGP S 4 t RPSI EmD Z 7 g 1 SmA Y r METAL r II IX3 I XI ox cr I C ...

Page 13: ... _ 0 9 AN SAse lED OOLBY BIC NR ENC IS I B I I I I AF u 1 lD T I SYNCHRD i EDIT L AD DATA SYNC CAP AN73S35 1 B REC EQ AMPIOEC K2 I 7 IS r J 1 m GND 1 23 r EO I IGREe L I iIi2i I I I Lu GP I p l AN73S35 lID RECEQ AMPIOECKI tl k j 2 r GND T i l 3 T h J GH O GPI PI I J POWER R R HSPD fl SOL CSOL R SGP2S BC BfiD ADSlAD91 I I I CL 01 I 17 1 J P ADA 6235 PEl IIIID 12 ch D A CONVERTER L AOIO AD 1A012 LD ...

Page 14: ...0 0 a J J r C nM 5ci V t R2 R9 2 2M 2 2MI 0 r NI c OV 0 02 D S OV OV D S03 OV OV 0 102V5 5VI c i nM 5g g l I r R6 RIO I L 2 2M 2 2M J r I 0 r c V 25 5VI D S OV OV 04 H I 0 a a 8 8 f N8 1 JIJ J J 08 1 t J 0620 ISR35200TB 15 2V 0601 1 82V 14 5V 15 2V g v 0 r a v 01 4 2SJ 164PQRTA HEAD RIP SELECT IPLAY ONI r136V r 0 0 0 0 a g8 g J a t C604 6800P 2 J O 02 0 C J 5 6 4V NOr veil 1 8 vo 0 o I RI3 100 IC2...

Page 15: ...UPC 1297CA DOLBYHX PRO 0301 351 2SAI309AOSTA POWER SUPPLY 13 4V E C D351 g g MTZJ7R5eTA 1 u IC351 R355 150K 0603 DTCI14ESTP POWER ON DET 0604 615 2SAI309AOSTA STABI LIZER 0606 60B 610 613 2SD2037EFTA REGULATOR 0612 2SB621ARSTA STABILIZER ABCDEFGH J R351 15K e619 25V220 134V 7 9V 5 GV 21 j 0 U 0 rJ L R356 150K D 0 Uo e604 f 6BOOP 2 0 D 1 o g 1 D I o o 1 D B 0 1 2 ifQ A L 2V l D604 ISR35200TB 7 BV 0...

Page 16: ... 8v 0304 354 2SB621ARSTA BIAS OSc CONT T LI 3OmH CI9 120P II C20 120P B 0306 356 2SBIO30AOSTA 81AS OSC CONT R324 1 2K R378 2 2K At tI 6 0 I r8V fI A 0 13 R26 10K L2 30mH C62 560P C320 2 P 0302 R322 10 0303 0 0 6 3 O 0 5g 3 e 1 fi N 0 o N 3 r 8V 14 2 V r 8V O tJo L3 30mH C57 560P R379 47K TC59 2 r R57 10K 0356 0 C60 20P R58 10K L4 30mH r C58 560P C370 L353 22P 1 t R375 R362 112W27 6 8K t R377 112W2...

Page 17: ...06 2 4K Q401 404 2SC3311AOSTA MPX SELECT IC40 I AN7354SC E2 DOL8Y 81C NR o Q 1 0 U D IC5 AN7353S E2 REC EQ AMP DECK I 1 0 0 D o u 1 IC5 Dol by 8 0r C 3 5V DOlb C 2 BV N I 00 v D 0 0 Do I UN A B IC 150 M62353 FPE I 8eh DIA CONVERTER D A B C ICI50 D E F G 8 A E F G C I Q 150 151 DTAI14TSTP SWITCHING 31 ...

Page 18: ...i HIFT IR f P D A L IDDRESS ECODER 112 u r Ie F 1 1 ii 2 1V II 7V 7 OV 4 5V OV 51 IV F 19 4 5v A C D I K ov 0150 0 9V G 4V C33 16V22 C616 10VI000 N NO IC i I CI AN7384N A ELECTR IC VOLUME C40 O N C34 1 to 16V22 f UT N 0 N N R35 120K to 5 0 C D OB 7 9 OV GV OV 15 4 06 ov OV R3G 22K R30 4 7K iN 0 0 0 u I 07 OV R55 22K OV O GVI 06 7 2SC3311AOSTA REC LEVEL CONTROL IC 152 BU2040F T2 5ERIAL PARALLEL CON...

Page 19: ...1 O eO 1 1 CNB J D2X2 D SPDA2 SPDB2 SPDAI II SPDB I r HP GND HPL ill HPR G SYNC OJ REMDCON To 39 page j as I DTAI14ESTP SWITCHING 1 REMOTE J RIB7 IK JK2 SYNCHRO EO IT TAPE SPEED ADJ I X I DECK I I RI6e 10 RI53 l eK 0157 MA IB5TA D on 0 JK3 OUT I REMOTE CONTROL JK4j IN RIBI 10 33 SCHEMATIC This schematic di new technology Note 1 S601 Voltage selector Resistance are in ohms 1 K 1 000 0 1 M 1 0 Capac...

Page 20: ...6 mark have special characteristics important for safety When replacing any of these components use only manufacturer s specified parts B indicates B bias IO B OO indicates B bias y indicates the flowof the playback signal c indicates the flowof the record signal Thesupply part number is described alone in the replacement parts list t ACIN 230 240V 50 60 Hz Caution ICandLSIare sensitive to static ...

Page 21: ... 6 JK601 ACIN 230 SO 60Hz 6 JK601 AC IN bit 1IO 127 2201240V SO 60Hz A 1 RS TR9 POWER SUPPLY 1 1 CIRCUIT For EB EGJareas 6 T60 I CN601 CN603 POWER SUPPLY 1 1 CI RCUIT For GC area 6 T601 CN601 35 ...

Page 22: ...CrO2 switch in off position S974 DECK 1 Reverse rec inhibit switch in off position S974A DECK 2 Reverse rec inhibit switch in off position S975 DECK 1 Forward rec inhibit switch in off position S975A DECK 2 Forward rec inhibit switch in off position S976 DECK 1 ATS Metal switch in off position S976A DECK 2 ATS Metal switch in off position S977 DECK 1 Cassette holder open detection switch S977A DEC...

Page 23: ... a H H 49 4 9VjC97 1 3 I I I 1 D 4V l l Q I oo IC972 I I4 9V IC971 972 RVSGP2S24BC PHOTO 1 INTERRUPTER R971 2 150 m MECHANISM DECK I CIRCUIT R524 0509 1 2W27 13 6V 4 6V o 3 BV 00 I 0 00 I Q I 0510 v 3 BV 4 6V R526 100 2V N 7 IC501 I RS TR979 8 0522 2SB621ARSTA REEL MOTOR DRIVE 0530 2SAI309AQSTA REEL MOTOR DRIVE 0527 2SDI423QRSTA REEL MOTOR DRIVE 7 7V C505 16VI0 iJ 0527 DV o BV no oC 1 0508 R597 R5...

Page 24: ...DRIVE 0529 2SAI309AQSTA REEL MOTOR DRIVE A B C D 16 1 10 Q525 0 2V Q519 3 9V 4 IV Q52B 2V 0 2V R59B IK R5BI IBK 0 9V g lliN 0O 1 4 9V 0 a r 524 ITAI14ESTP REEL MOTORDRIVE 052B 2SDI423Q RST A REEL MOTOR DRIVE a 2 1Jo iii A B C D E F REEL MOTOR CS 974 A CAPSTAN MOTOR I DECK2 TAPE PULSEI LEADER TAPE on m MOTOR DECK2 CIRCUIT To 33 pag CP3 METER L METER R VR B V RL VRR OSC LF IADJ PBIADJ MSP C L K C P4...

Page 25: ...DATA POF POWER DMT STaG SCKC SDAC TAPE2 T APE I B A H I J K L M N I 2 3 4 5 A 8 8 J C 7 7V 8 C D E F C P5 B I I GN 0 2 B BK 3 B 2 4 B SW 5 M GND 6 F I 7 F2 8 VP 9 01 X2 10 13 6V D E F 4 9V I I 4 8V N I O I 0 0 0 1 1 1 1 oo o o dN G OR 8 GH IJ KLMNOPQRST c P Q 000 000 O 1 n u o j H AI FEN GPO D L 8 C K J E D T R79B 39 K A 8 C F G H R799 39K D E D JUL 8V 39 4 8V IC506 LE93CS EEPROM HI MA 0O 1 no U o...

Page 26: ...t N N 0526 2SAI309AQSTA SWITCHING REMOTE DO1 no U D 0 00 J I IIHEADPHONES JACK CIRCUIT eN706 t t LoEe J R709R712 820 IK x UJ 00 UJ UJ 00 Ii I JO mJ 11 11 c 070 I 2SC3311AQSTA REe BI AS CaNT t 4DEeK IJ AB CDE F G H DEeK2 a OPERATION CIRCUIT 40 J K710 HEADPHONES 21 B D H F I 0 0 JQ E e P704 I A 2 C 3 G 4 5 ep70S 13 SWITCH DECK I CIRCUIT eN704 m J6 J6 J6 J g 11 11 1 1 i gSWITCHCDECK2 CIRCUIT eN70S R7...

Page 27: ...m W2P I I L 8 OECK 2 I1l RIP HEAD cJcm NOTes BLK BLU GRY RED SLD WHT CN703 rn BI ack Blue Gray Red Shiledwire WhiTe CP704 A HEADPHONES 1 1JACK P C B 41 II MOTOR CONTROL PC B CP507 CP506 m J m MAIN P C B r RED RED 2 WHT WHT 2 3 SLD GRY SLD 3 4 BLU BLU 4 5 BLK BLK 5 5 1 CPI m FL PC B CP703 CP70I CP3 CP702 CP6 CP5 CP4 t 6 ...

Page 28: ...1 2 A PRINTED CIRCUIT BOARDS rl1 MAIN PC B REPI500A M B c D E ERASE CURRENT CHECK POINTtOECK2 F G IRS TR979 RS TR97 5 3 4 ERASE CURRENT CHECK POINTtOECKI m HEADPHONES JACK PC B REPI50IA S 43 ...

Page 29: ... BCE Jat5 0 ai L F U 0 16 _e_ t 5 1 B C E 11 JK3e 58 f Q BC T 2 fCI50 R 0 vfd D 52 JaG I e C6 J I 2 5 1 t I 1 R6t W L 16 R637 1 1 0 1 cg r oT If 1 I c I i5 ee J e 1 A6IS Q6J1 r 061 620 I E C B or rlI C614 D6QE1 Ii 7 8 r I POWER SUPPLY P C B 1 1 For pp area REPI502A PI lAc OUTLET I UNSWITCHED 120V 60H ower Irons former I Wi 0 eee IW e e 1 21 b Ii II 5 I r I t r IPOWER SUPPLY P C B 1 1 For EB EG are...

Page 30: ...11 12 13 14 15 r r 1 POWER SUPPLY P C B For GC oreo IREPI502D PI IVOLTADJ I I I 1011 27 220 240V 50 60HZ t v r ower c2c2D ronsformer fie mFL P C B IREPI50IA SI 18 45 ...

Page 31: ...41 A7 P3 AI A2 A3 P7 CUSHION Part No RPNO662 1 PP EG GC RPNO663 EB MTZJ3R3ATA MTZJ5R1 BTA MTZJ6R2BTA MTZJ7R5CTA MTZJ8R2CTA MTZJ20DTA 49 BA4560FT1 LE93CS47M6TL 8 8 15 15 4 4 BA6218 M5218AL MC14584BFR2 14 Pin AN7353S E2 24 Pin BU2040F T2 16 Pin AN7352S E2 28 Pin M62353FPE1 16 Pin AN7354SC E2 42 Pin MC14052BFR2 16 Pin M62352FPE1 20 Pin DTA114ESTP 2SA1309AOSTA DTA114TSTP 2SB1030AOSTA C114EP 2SC3311AOS...

Page 32: ... ERDS2TJ1O1 1 4W 100 R501 ERDS2TJ1O2 1 4W 1K R37 38 ERDS2TJ102 1 4W 1K R31O ERDS1FJ270 1 2W 27 R503 ERDS2TJ682T 1 4W 6 8K R39 40 ERDS2TJ225 1 4W 2 2M R311 ERDS2TJ102 1 4W 1K R504 ERDS2TJ472 1 4W UK R41 42 ERDS2TJ183T 1 4W 18K R312 ERDS2TJ682T 1 4W 6 8K R505 ERDS2TJ123 1 4W 12K R43 44 ERDS2TJ393 1 4W 39K R313 ERDS2TJ392T 1 4W 3 9K R507 ERDS2TJ223 1 4W 22K R45 46 ERDS2TJ394 1 4W 390K R314 ERDS2TJ471...

Page 33: ...R579 580 ERDS2TJ412 1 4W UK R724 725 ERDS2TJ332 1 4W 3 3K C65 66 ECBTlEI03ZF 25V O OIU R581 ERDS2TJ183T 1 4W 18K R726 ERDS2TJ222 1 4W 2 2K C67 70 ECBTlC472KR5 16V 4700P R582 ERDS2TJ333 1 4W 33K R727 728 ERDS2TJ412 1 4W UK C150 ECBTlE1O3ZF 25V O OIU R583 ERDS2TJ103 1 4W 10K R729 730 ERDS2TJ682T 1 4W 6 8K C151 ECEA1A1J41l 10V 47OU R586 588 ERDS2TJ223 1 4W 22K R731 732 ERDS2TJ123 1 4W 12K C152 ECBTlE...

Page 34: ...KA100B ECEA1CKA100B ECEA1EKA4R7B ECEA1CKAlOOB ECEAlHKAO lOB ECEA1CKAlooB ECBTlE103ZF ECEA1AKAZ20B ECBTlE1O3ZF ECEA1AKA220B ECKRZH682PE Values Remarks 25Y O OlU 25V O OIU 25Y O OIU 16Y IOU 16V 1200P 50V O OIU 50VO 022U SOV O 047U SOV 120P 500V 820P 25YO 022U SOY 22P 1ooVO 015U 50V 22P lOV 220U 25Y O OIU 25Y 4 7U 50V 3900P 50Y O IU SOY22ooP 50V 68ooP 50V 2200P 25V O OIU 25V O OIU 16Y 1200P 16V 1500P...

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