Mackie FAST RECOVERY M-1400 Service Manual
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Mackie FAST RECOVERY M-1400 Service Manual

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M•1400 / M•1400i / M•1200
SERVICE MANUAL
©1998 MACKIE DESIGNS, INC.
Version 1.2
820-179-00

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Summary of Contents for Mackie FAST RECOVERY M-1400

  • Page 1 M•1400 / M•1400i / M•1200 SERVICE MANUAL ©1998 MACKIE DESIGNS, INC. Version 1.2 820-179-00...
  • Page 2 CAUTION AVIS CAUTION AVIS RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION: TO REDUCE THE RISK OF ATTENTION: POUR EVITER LES ELECTRIC SHOCK DO NOT REMOVE RISQUES DE CHOC ELECTRIQUE, NE THE COVER PAS ENLEVER LE COUVERCLE.

  • Page 3: Table Of Contents

    ® T ABLE O F C O NT ENT S INT RO DUC T IO N............. 2 SYST EM O VERVIEW ............3 SUMMARY O F FEAT URES ..............4 SPEC IFIC AT IO NS...................6 C IRC UIT T HEO RY............8 INPUT C IRC UIT RY..................8 PO WER AMPLIFIER C IRC UIT RY............8 PRO T EC T IO N C IRC UIT S ...............9...

  • Page 4: Int Ro Duc T Io N

    M•1200/M•1400 SERVIC E MANUAL INT RO DUC T IO N T his ma nua l c o nta ins c o mp le te se rvic e info rma tio n fo r the M•1200, M•1400 a nd M•1400i a ud io p o w e r a m p lifie rs. O p e ra ting instruc tio ns w ill b e to uc he d o n b rie fly. Fo r c o m p le te o p e ra ting instruc tio ns re fe r to the o wne r’...

  • Page 5: Syst Em O Verview

    VERSIO N 1.1 SYST EM O VERVIEW T his se c tio n p ro vid e s a q uic k summa ry o f the M•1200/ M•1400’ s ma jo r fe a ture s. It is no t inte nd e d to ta ke the p la c e o f the o wne r’...

  • Page 6: Summary O F Feat Ures

    M•1200/M•1400 SERVIC E MANUAL SUMMARY O F FEAT URES FRO NT PANEL 1. G AIN De te nte d g a in c o ntro ls a d just the le ve l se nt to e a c h o utp ut se c tio n. T he g a in struc ture is d e sig ne d so tha t a +4d Bu (1.23V rm s) inp ut sig na l d rive s the a m p lifie r to full ra te d Ω.
  • Page 7 VERSIO N 1.1 REAR PANEL 1. SPEAKER O UT PUT S ® T he M•1400 ha s Sp e a ko n c o nne c to rs whe re the M•1200 ha s ¼” sp e a ke r o utp uts. Bo th m o d e ls ha ve b ind ing p o sts.

  • Page 8: Spec Ific At Io Ns

    M•1200/M•1400 SERVIC E MANUAL SPEC IFIC AT IO NS Po we r ra ting s a re sp e c ifie d No te C O NT INUO US AVERAG E O UT PUT 120VAC (U.S. a nd C a na d a ) a nd 240VAC PO WER, BO T H C HANNELS DRIVEN: (Exp o rt) line vo lta g e s.
  • Page 9 VERSIO N 1.1 RISE T IME: LIMIT ER SEC T IO N: < 4.4µs C o m p le m e nta ry Po sitive a nd Ne g a tive Pe a k De te c ting SLEW RAT E: INDIC AT O RS: Vo lta g e Sle w Ra te >...

  • Page 10: C Irc Uit T Heo Ry

    M•1200/M•1400 SERVIC E MANUAL C IRC UIT T HEO RY Muc h o f the c irc uitry in the M•1200/ M•1400 is se lf e xp la na to ry fro m the sc he ma tic . T his se c tio n will e xp la in the uniq ue c irc uits a nd a rc hite c ture .

  • Page 11: Pro T Ec T Io N C Irc Uit S

    VERSIO N 1.1 PRO T EC T IO N C IRC UIT S Re fe r to sc he ma tic s o n p a g e s 27-29. T he M•1200/ M•1400 ha s two o utp ut p ro te c tio n c irc uits in a d d itio n to the ra il fuse s. T he first m ute s the a m p if the o utp ut d e vic e s a re lo a d e d b e yo nd the ir sa fe o p e ra ting a re a (SO A).

  • Page 12: T Hermal Manag Ement

    M•1200/M•1400 SERVIC E MANUAL T HERMAL MANAG EMENT Re fe r to sc he ma tic o n p a g e 29. T he M•1200/ M•1400 T -De sig n He a tsink/ Fa n c o o ls o utp ut d e vic e s e ve nly a nd d o e s no t c o lle c t d ust o n the c irc uitry.

  • Page 13: Servic E Pro C Edures

    VERSIO N 1.1 SERVIC E PRO C EDURES MEC HANIC AL PRO C EDURES T he M•1200/ M•1400 d e sig n a llo ws e a sy re mo va l o f a ll c o mp o ne nts a nd a sse mb lie s. Disa sse m b ly a nd re a sse m b ly sho uld b e se lf e vid e nt.

  • Page 14: T Ro Ublesho O T Ing T Ips - O Ut Put Failures

    M•1200/M•1400 SERVIC E MANUAL T RO UBLESHO O T ING T IPS - O UT PUT FAILURES Afte r a c a ta stro p hic fa ilure , it is like ly tha t the fo ur +/ -80V sup p ly fuse s will b e b lo wn. Re p la c e fuse s a nd b ring up the Va ria c w hile m o nito ring line c o nsum p tio n.
  • Page 15 VERSIO N 1.1 BIAS AND T EST PRO C EDURE Afte r the unit ha s b e e n re p a ire d , the fo llo wing sho uld b e d o ne to a ssure lo ng te rm re lia b le o p e ra tio n.
  • Page 16 M•1200/M•1400 SERVIC E MANUAL (T HIS PAG E UNINT ENT IO NALLY LEFT BLANK), T HO SE RESPO NSIBLE HAVE BEEN PUT T O T HE SWO RD SERVIC E PRO C EDURES...

  • Page 17: Part S

    VERSIO N 1.1 PART S Q UIC K PART S FRO NT PANEL FULL SYMMETRY DUAL DIFFERENTIAL HIGH CURRENT DESIGN PROFESSIONAL POWER AMPLIFIER GAIN /dB G AIN /dB INTERNALSTATUS PROTECT SHORT TEMP ST ATUS 1& 2 1.23v (+4dBu) POWER SENSITIVITY 1.23v (+4dBu) SENSITIVIT HANDL E ASSEMBL YS...

  • Page 18: C Hassis Assembly

    M•1200/M•1400 SERVIC E MANUAL C HASSIS ASSEMBLY PART S...
  • Page 19 VERSIO N 1.1 C HASSIS ASSEMBLY PART S LIST IT EM # PART # DESC RIPT IO N NO T ES 700-028-02 SEMS 6-32X3/ 8 PHP BLKZC ALL SIDE PANEL SC REWS 550-221-00 T O P C O VER - M1200 700-041-04 MC H 6-32X3/ 8 FL 100DG BLK T O P C O VER T O C HASSIS...

  • Page 20: Heat Sink Assembly

    M•1200/M•1400 SERVIC E MANUAL HEAT SINK ASSEMBLY PART S...
  • Page 21 VERSIO N 1.1 HEAT SINK ASSEMBLY PART S LIST IT EM # PART # DESC RIPT IO N 551-032-00 EXT R FAB HEAT SINK - M1200 410-003-00 INSL SILPAD K6 W/ ADHESIVE 055-081-00 PC B ASSY MAIN - 1200 080-072-01 PC B ASSY MAIN - M1400 080-072-02 PC B ASSY MAIN - M1400i...

  • Page 22: C O Mplet E Part S List

    M•1200/M•1400 SERVIC E MANUAL C O MPLET E PART S LIST 040- C a b le s 500- Switc he s 640- AC Line C o rd s 055- Finishe d PC B Assys 510- Fuse s 700- Ha rd wa re 100- Po ts a nd Re sisto rs 550- C ha ssis Me ta l 760- Kno b s/ Pla stic...
  • Page 23 VERSIO N 1.1 PART # DESC RIPT IO N PART # DESC RIPT IO N 140-111-00 RES T F SM .1W 5% 36K O HM 300-003-00 DIO SW DL4148 100V SM 140-115-00 RES T F SM .1W 5% 51K O HM 300-007-00 DIO SW 1SS244-SUB 1SS245 140-123-00...
  • Page 24 M•1200/M•1400 SERVIC E MANUAL PART # DESC RIPT IO N PART # DESC RIPT IO N 400-172-00 T ERM SO LDER-IN 18AWG 700-058-02 MC H 4-40X1/ 2 SKT C LRZC 400-173-00 T ERM .25 Q KDS PC MT ST ABLE 700-059-00 HEX 5/ 16-18X3IN G D-5 400-210-00...
  • Page 25 T H E M I X ER FI X ER • M ACK I E DESI GN S SERV I CE T H E M I X ER FI X ER • M ACK I E DESI GN S SERV I CE N EWS N EWS FR Se rie s Fuse Upg ra de...
  • Page 26 T H E M I X ER FI X ER • M ACK I E DESI GN S SERV I CE T H E M I X ER FI X ER • M ACK I E DESI GN S SERV I CE N EWS N EWS FR T ywra p Mo d...
  • Page 27 FR series Amplifier ribbon replacement instructions (NEW! IMPROVED! July 2000) Models affected: FR series M1200, M1400, M1400i M1200: All models. M1400i: Before Serial # DA20889 and all models with “AM” prefix. M1400 and 230v versions: Before Serial # DB12700 and all models with “AH” prefix. Add this as part of your normal repair procedures.
  • Page 28 THE MACKIE FIXER • MACKIE DESIGNS SERVICE NEWS Procedure continued. Input board work: If the two ribbon cables are soldered to the input board, follow steps 7 to 11. If not, then go to step 12. Remove the metal shield plate and insulator sheet from the back of the input board.
  • Page 29 M•1200/ M•1400 INPUT PC B 055-079-00 REV-D...
  • Page 30 M•1200/ M•1400 INPUT PC B 055-079-00 REV-D...
  • Page 31 M•1200/ M•1400 DISPLAY PC B 055-080-00 REV-A...
  • Page 32 M•1200/ M•1400 DISPLAY PC B 055-080-00 REV-A...
  • Page 33 M•1200/ M•1400 MAIN PC B 055-081-00 REV-D...
  • Page 34 M•1200/ M•1400 MAIN PC B 055-081-00 REV-D...
  • Page 35 M•1200/ M•1400 MAIN PC B 055-081-00 REV-D...
  • Page 36 M•1200/ M•1400 MAIN PC B 055-081-00 REV-D...
  • Page 37 M•1200/ M•1400 SO FT ST ART PC B 055-162-00 REV-A...
  • Page 38 M•1200/ M•1400 SO FT ST ART PC B 055-162-00 REV-A...
  • Page 39 M•1400 / M•1400i / M•1200 SERVICE MANUAL ©1998 MACKIE DESIGNS, INC. Version 1.2 820-179-00...
  • Page 40 CAUTION AVIS CAUTION AVIS RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION: TO REDUCE THE RISK OF ATTENTION: POUR EVITER LES ELECTRIC SHOCK DO NOT REMOVE RISQUES DE CHOC ELECTRIQUE, NE THE COVER PAS ENLEVER LE COUVERCLE.

  • Page 41: Input Pc B Sc Hemat Ic

    ® T ABLE O F C O NT ENT S INT RO DUC T IO N............. 2 SYST EM O VERVIEW ............3 SUMMARY O F FEAT URES ..............4 SPEC IFIC AT IO NS...................6 C IRC UIT T HEO RY............8 INPUT C IRC UIT RY..................8 PO WER AMPLIFIER C IRC UIT RY............8 PRO T EC T IO N C IRC UIT S ...............9...

  • Page 42: Int Ro Duc T Io N

    M•1200/M•1400 SERVIC E MANUAL INT RO DUC T IO N T his ma nua l c o nta ins c o mp le te se rvic e info rma tio n fo r the M•1200, M•1400 a nd M•1400i a ud io p o w e r a m p lifie rs. O p e ra ting instruc tio ns w ill b e to uc he d o n b rie fly. Fo r c o m p le te o p e ra ting instruc tio ns re fe r to the o wne r’...

  • Page 43: Syst Em O Verview

    VERSIO N 1.1 SYST EM O VERVIEW T his se c tio n p ro vid e s a q uic k summa ry o f the M•1200/ M•1400’ s ma jo r fe a ture s. It is no t inte nd e d to ta ke the p la c e o f the o wne r’...

  • Page 44: Summary O F Feat Ures

    M•1200/M•1400 SERVIC E MANUAL SUMMARY O F FEAT URES FRO NT PANEL 1. G AIN De te nte d g a in c o ntro ls a d just the le ve l se nt to e a c h o utp ut se c tio n. T he g a in struc ture is d e sig ne d so tha t a +4d Bu (1.23V rm s) inp ut sig na l d rive s the a m p lifie r to full ra te d Ω.
  • Page 45 VERSIO N 1.1 REAR PANEL 1. SPEAKER O UT PUT S ® T he M•1400 ha s Sp e a ko n c o nne c to rs whe re the M•1200 ha s ¼” sp e a ke r o utp uts. Bo th m o d e ls ha ve b ind ing p o sts.

  • Page 46: Spec Ific At Io Ns

    M•1200/M•1400 SERVIC E MANUAL SPEC IFIC AT IO NS Po we r ra ting s a re sp e c ifie d No te C O NT INUO US AVERAG E O UT PUT 120VAC (U.S. a nd C a na d a ) a nd 240VAC PO WER, BO T H C HANNELS DRIVEN: (Exp o rt) line vo lta g e s.
  • Page 47 VERSIO N 1.1 RISE T IME: LIMIT ER SEC T IO N: < 4.4µs C o m p le m e nta ry Po sitive a nd Ne g a tive Pe a k De te c ting SLEW RAT E: INDIC AT O RS: Vo lta g e Sle w Ra te >...

  • Page 48: C Irc Uit T Heo Ry

    M•1200/M•1400 SERVIC E MANUAL C IRC UIT T HEO RY Muc h o f the c irc uitry in the M•1200/ M•1400 is se lf e xp la na to ry fro m the sc he ma tic . T his se c tio n will e xp la in the uniq ue c irc uits a nd a rc hite c ture .

  • Page 49: Pro T Ec T Io N C Irc Uit S

    VERSIO N 1.1 PRO T EC T IO N C IRC UIT S Re fe r to sc he ma tic s o n p a g e s 27-29. T he M•1200/ M•1400 ha s two o utp ut p ro te c tio n c irc uits in a d d itio n to the ra il fuse s. T he first m ute s the a m p if the o utp ut d e vic e s a re lo a d e d b e yo nd the ir sa fe o p e ra ting a re a (SO A).

  • Page 50: T Hermal Manag Ement

    M•1200/M•1400 SERVIC E MANUAL T HERMAL MANAG EMENT Re fe r to sc he ma tic o n p a g e 29. T he M•1200/ M•1400 T -De sig n He a tsink/ Fa n c o o ls o utp ut d e vic e s e ve nly a nd d o e s no t c o lle c t d ust o n the c irc uitry.

  • Page 51: Servic E Pro C Edures

    VERSIO N 1.1 SERVIC E PRO C EDURES MEC HANIC AL PRO C EDURES T he M•1200/ M•1400 d e sig n a llo ws e a sy re mo va l o f a ll c o mp o ne nts a nd a sse mb lie s. Disa sse m b ly a nd re a sse m b ly sho uld b e se lf e vid e nt.

  • Page 52: T Ro Ublesho O T Ing T Ips - O Ut Put Failures

    M•1200/M•1400 SERVIC E MANUAL T RO UBLESHO O T ING T IPS - O UT PUT FAILURES Afte r a c a ta stro p hic fa ilure , it is like ly tha t the fo ur +/ -80V sup p ly fuse s will b e b lo wn. Re p la c e fuse s a nd b ring up the Va ria c w hile m o nito ring line c o nsum p tio n.
  • Page 53 VERSIO N 1.1 BIAS AND T EST PRO C EDURE Afte r the unit ha s b e e n re p a ire d , the fo llo wing sho uld b e d o ne to a ssure lo ng te rm re lia b le o p e ra tio n.
  • Page 54 M•1200/M•1400 SERVIC E MANUAL (T HIS PAG E UNINT ENT IO NALLY LEFT BLANK), T HO SE RESPO NSIBLE HAVE BEEN PUT T O T HE SWO RD SERVIC E PRO C EDURES...

  • Page 55: Part S

    VERSIO N 1.1 PART S Q UIC K PART S FRO NT PANEL FULL SYMMETRY DUAL DIFFERENTIAL HIGH CURRENT DESIGN PROFESSIONAL POWER AMPLIFIER GAIN /dB G AIN /dB INTERNALSTATUS PROTECT SHORT TEMP ST ATUS 1& 2 1.23v (+4dBu) POWER SENSITIVITY 1.23v (+4dBu) SENSITIVIT HANDL E ASSEMBL YS...

  • Page 56: C Hassis Assembly

    M•1200/M•1400 SERVIC E MANUAL C HASSIS ASSEMBLY PART S...
  • Page 57 VERSIO N 1.1 C HASSIS ASSEMBLY PART S LIST IT EM # PART # DESC RIPT IO N NO T ES 700-028-02 SEMS 6-32X3/ 8 PHP BLKZC ALL SIDE PANEL SC REWS 550-221-00 T O P C O VER - M1200 700-041-04 MC H 6-32X3/ 8 FL 100DG BLK T O P C O VER T O C HASSIS...

  • Page 58: Heat Sink Assembly

    M•1200/M•1400 SERVIC E MANUAL HEAT SINK ASSEMBLY PART S...
  • Page 59 VERSIO N 1.1 HEAT SINK ASSEMBLY PART S LIST IT EM # PART # DESC RIPT IO N 551-032-00 EXT R FAB HEAT SINK - M1200 410-003-00 INSL SILPAD K6 W/ ADHESIVE 055-081-00 PC B ASSY MAIN - 1200 080-072-01 PC B ASSY MAIN - M1400 080-072-02 PC B ASSY MAIN - M1400i...

  • Page 60: C O Mplet E Part S List

    M•1200/M•1400 SERVIC E MANUAL C O MPLET E PART S LIST 040- C a b le s 500- Switc he s 640- AC Line C o rd s 055- Finishe d PC B Assys 510- Fuse s 700- Ha rd wa re 100- Po ts a nd Re sisto rs 550- C ha ssis Me ta l 760- Kno b s/ Pla stic...
  • Page 61 VERSIO N 1.1 PART # DESC RIPT IO N PART # DESC RIPT IO N 140-111-00 RES T F SM .1W 5% 36K O HM 300-003-00 DIO SW DL4148 100V SM 140-115-00 RES T F SM .1W 5% 51K O HM 300-007-00 DIO SW 1SS244-SUB 1SS245 140-123-00...
  • Page 62 M•1200/M•1400 SERVIC E MANUAL PART # DESC RIPT IO N PART # DESC RIPT IO N 400-172-00 T ERM SO LDER-IN 18AWG 700-058-02 MC H 4-40X1/ 2 SKT C LRZC 400-173-00 T ERM .25 Q KDS PC MT ST ABLE 700-059-00 HEX 5/ 16-18X3IN G D-5 400-210-00...

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Fast recovery m-1400iFast recovery m-1200

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