Marantz MM7055/K1B User Manual Download

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Service

Manual

•

Some illustrations using in this service manual are slightly different from the actual set.

•

Please use this service manual with referring to the operating instructions without fail.

•

For purposes of improvement, specifications and design are subject to change without notice.

5 Channel Power Amplifier

MM7055 /

N1B/U1B/K1B

MM7055

S0322-0V04M/DG1108

WARNING: Violators will be prosecuted to the maximum extent possible.

Ver. 4

Please refer to the

MODIFICATION NOTICE.

Summary of Contents for MM7055/K1B

Page 1: ...rating instructions without fail For purposes of improvement specifications and design are subject to change without notice 5 Channel Power Amplifier MM7055 N1B U1B K1Bd MM7055 S0322 0V04M DG1108 Copy...

Page 2: ...INDHOVEN THE NETHERLANDS PHONE 31 40 2507844 FAX 31 40 2507860 KOREA D M SALES AND MARKETING KOREA LTD 2F YEON BLDG 88 5 BANPO DONG SEOCHO GU SEOUL KOREA PHONE 82 2 715 9041 FAX 82 2 715 9040 CANADA D...

Page 3: ...afety parts that are marked z on wiring diagrams and parts lists be sure to use the designated parts Be sure to mount parts and arrange the wires as they were originally For safety seasons some parts...

Page 4: ...PRO MICROPROCESSOR REC RECORDING RES RESISTOR SPK SPEAKER SW SWITCH TRANSF TRANSFORMER TRIM TRIMMING TRS TRAMSISTOR VAR VARIABLE X TAL CRYSTAL NOTE ON SAFETY Symbol z Fire or electrical shock hazard O...

Page 5: ...h 6 Output bandwidth 8 load 0 09 5 Hz 40 kHz Frequency response 1 W 8 8 Hz 100 kHz 3 dB Damping factor 100 Input sensitivity impedance 1 2 V 22 k UNBALANCED 2 4 V 30 k BALANCED Signal to noise ratio I...

Page 6: ...RONT PCB ASS Y 3 Ref No of EXPLODED VIEW C10 INPUT PCB 2 Refer to DISASSEMBLY 5 INPUT PCB 2 and EXPLODED VIEW INPUT PCB 2 Ref No of EXPLODED VIEW C15 INPUT PCB 1 Refer to DISASSEMBLY 6 INPUT PCB 1 and...

Page 7: ...point of each photograph Photografy direction View from above Front side Direction of photograph B Direction of photograph D Direction of photograph C Direction of photograph A TOP COVER FRONT PANEL A...

Page 8: ...8 5 INPUT PCB 2 1 Disconnect the connector wire 2 Remove the screws TOP COVER INPUT PCB 2 Proceeding CN52 Direction of photograph A...

Page 9: ...Remove the screws 7 POWER PCB ASSY TOP COVER INPUT PCB 2 INPUT PCB 1 Proceeding BN51 Direction of photograph A TOP COVER INPUT PCB 2 INPUT PCB 1 POWER PCB ASS Y Proceeding Please refer to EXPLODED VI...

Page 10: ...10 8 AMP UNIT 1 Remove the screws 2 Remove the screws TOP COVER INPUT PCB 2 INPUT PCB 1 AMP UNIT Proceeding View from bottom Direction of photograph C...

Page 11: ...the connector wires then remove the screws 4 Disconnect the connector wire CN21 BN41 CN15 CN16 CN17 CN18 CN19 CN31 CN21 CN13 Please refer to EXPLODED VIEW for the disassembly method of each PCB inclu...

Page 12: ...s Displayed protection history and move to normal mode 2 Factory mode Factory Cooling FAN actived and Furthermore this unit in a condition of the following by pushing the Button A 2 1 AVSS output chec...

Page 13: ...if the Service button is pushed 5sec in the Service mode For detail and coping process please refer to SYSTEM ERROR V1 D407 V2 D406 V3 D405 Cause of protect OFF OFF OFF No protection log OFF OFF ON De...

Page 14: ...o Standby LED lights as follows The difference by destination is only a Auto Standby function Destination Auto standby function Auto standby LED factory mode only N Europe Enable Lights Others NA Japa...

Page 15: ...Detection of over current over 200msec on Power AMP _P CUR FAIL Connection AMP PWB CN95 4pin CN94 8pin CPU PWB BN41 8pin CPU IC402 38pin _P CUR FAIL 0V Fail 5V Normality There is a possibility that P...

Page 16: ...ternal flash ROM of microprocessor IC402 on CPU PWB 12336Z A The updating of software takes about 20 seconds The software is common by MM7055 and MM7025 Necessary Equipment The following items are req...

Page 17: ...uble click the CPU MM7055_7025 folder 7 Double click the FlashSta exe And launch the M16C Flash Start 8 Check the internal flash memory in the Select Program Choose the COM Port number And the click O...

Page 18: ...7055_7025_yymmddvv mot And click Open NOTE The yy is two digit of year The mm is month The dd is date The vv is version 11 The FilePath and ID are inputted automatically and the MCU Type is selected t...

Page 19: ...12 Click the Setting 13 Choose the 57600 in the Baud rate DO NOT choose the other one Choose the 40 in Program_intervals ms Click the OK 19...

Page 20: ...14 Click the E P R 15 Click the OK 16 Software is written into the internal Flash ROM of CPU The updating of software takes about 20 seconds 20...

Page 21: ...17 Click the OK 18 Click the Exit 19 Disconnect the mains cord from the unit 20 Disconnect the RS 232C cable from the unit 21...

Page 22: ...No signal of input Speaker out No Load Top lid OPEN Measurement Point AMP PWB Channel Adjustment VR Measurement Point Front side AMP PWB SL CHANNEL 3 VR21 CN22 SR CHANNEL 4 VR31 CN32 C CHANNEL 5 VR11...

Page 23: ...ulator IC75 circuit Confirm the connector from Main Transformer CN11 CN14 CN704 CN72 Confirm RESET IC IC71 circuit Confirm crystal X400 circuit NO NO NO NO NO NO NO NO TROUBLE SHOOTING 1 POWER 1 1 Pow...

Page 24: ...3 54 55 56 each power amp pcb Refer to 2 2 Power Amp No audio output IChange the input selector SW to correct setting Confirm 21V power supply and control line SPK ON1 CN41 7pin Confirm the connection...

Page 25: ...diode which are connected with the base of a power transistor short circuited ZD8 2V 1SS133 Is other transistor trouble Is other resistance trouble Turn on power check that voltage of the section is n...

Page 26: ...26 Personal notes...

Page 27: ...N 5VL STANDBY2 SUB TRANS INPUT PART BAL BAL BAL FL SR SL CNT CNT SR SL FR FR FL FL 12V FR BUF BUF SR SL 12V 12V 12V CNT FL FR SL SR CNT UNBAL UNBAL UNBAL FL FR SL SR CNT 12V BUF BUF BUF 5VL R5F21246SN...

Page 28: ...IAGRAM BAL IN UNBAL IN 20dB 10dB 0dB 10dB 28 2V BAL 2V UNBAL 1V 40dB 30dB 30dB 20dB 30dB 40dB 40dB 20dB 0dB 10dB 1V 40dB 30dB 20dB 10dB LINE IN AMP IN a SPK OUT 29dB 6dB BAL INPUT a UNBAL INPUT SPEAKE...

Page 29: ...he Lead free Solder Sn Ag Cu PRINTED WIRING BOARDS CPU COMPONENT SIDE CPU FOIL SIDE 7 6 5 4 3 2 1 F E D C B A 1 2 3 4 5 6 7 F E D C B A FRONT 3 COMPONENT SIDE FRONT 2 COMPONENT SIDE FRONT 1 COMPONENT...

Page 30: ...30 Sn Ag Cu Lead free Solder When soldering use the Lead free Solder Sn Ag Cu AMP COMPONENT SIDE 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 H G F E D C B A...

Page 31: ...31 Sn Ag Cu Lead free Solder When soldering use the Lead free Solder Sn Ag Cu INPUT 1 COMPONENT SIDE 14 13 12 11 10 9 8 7 6 5 4 3 2 1 E D C B A...

Page 32: ...32 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 H G F E D C B A INPUT 2 COMPONENT SIDE Sn Ag Cu Lead free Solder When soldering use the Lead free Solder Sn Ag Cu...

Page 33: ...33 13 12 11 10 9 8 7 6 5 4 3 2 1 L K J I H G F E D C B A POWER COMPONENT SIDE Sn Ag Cu Lead free Solder When soldering use the Lead free Solder Sn Ag Cu...

Page 34: ...34 9 8 7 6 5 4 3 2 1 H G F E D C B A 3 2 1 F E D C B A STANDBY 2 COMPONENT SIDE STANDBY 1 COMPONENT SIDE Sn Ag Cu Lead free Solder When soldering use the Lead free Solder Sn Ag Cu...

Page 35: ...21 33P D403 1SS355T R437 47K C420 0 01uF R439 47K C419 0 01uF C422 33P C401 15P C402 15P R406 1M X400 16MHz120p 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 2...

Page 36: ...P12337Z 1 CUP12337Z 2 CUP12337Z 3 CUP12337Z 4 Q901 KRA102M SW91 D901 RED LED 5 4 3 2 1 CN91 11 10 9 8 7 6 5 4 3 2 1 BN92 R902 1 5K 5 4 3 2 1 BN91 D902 BULE LED R903 240 Q902 KRA102M C902 0 1uF D903 BU...

Page 37: ...3300pF R334 100K C301 22uF 50V D310 1N4003SRT R320 1 5K Q308 KTC3423Y R305 100 R327 47 1W R330 10 1W Q317 KTC3198Y R331 15K R333 22K R332 330K Q318 KTC3198Y R362 68K R364 120K R363 68K C315 0 01uF C31...

Page 38: ...50V C587 270P R624 22K C588 270P R623 470 C589 22 50V R625 22K R631 22K C598 270P C599 22 50V R630 470 C601 OPEN C603 0 1uF C600 0 1uF 8 7 6 5 4 3 2 1 IC603 AZ4580M R633 100 JK601 JK602 JK603 JK604 J...

Page 39: ...22 50V C533 22 50V R554 4 7K R549 4 7K R583 100 D507 1SS355T 5 6 4 3 8 1 7 2 RY507 C614 0 1uF C616 0 1uF C615 OPEN C613 0 1uF R579 OPEN R582 47K C620 22 25V 8 7 6 5 4 3 2 1 IC509 OPEN R580 0 R578 0 R...

Page 40: ...40 GND POWER POWER 8 7 6 5 4 3 2 1 A B C D E F SIGNAL SCHEMATIC DIAGRAMS 6 7...

Page 41: ...KH103MF Q704 KTA1267Y C704 1000P R704 4 7K C712 100 16 C711 0 1uF Q703 KRC102S RF701 7W 2 2 RF702 7W 2 2 D708 CVD1N4003ST D713 CVD1N4003ST D712 CVD1N4003ST D707 CVD1N4003ST C714 0 1uF C715 1000 35V R7...

Page 42: ...96mm AMP1 3 92mm AMP1 3 96mm CN12 3P CN15 5P AMP1 3 92mm AMP2 3 96mm BN21 5P BN31 5P POWER 3 96mm CPU 2 0mm O O AMP1 2 0mm FRONT 2 0mm ST BY TACT 2 0mm CPU 2 0mm FRONT 2 0mm ST BY 2 0mm POWER 2 0mm C...

Page 43: ...Only N Only C4 S13 C4 C2 P4 P6 P7 S11 P5 P10 M8 M17 M18 P12 P14 M21 M22 M21 M20 M20 M20 M20 M20 S2 S2 S4 S6 x2 S6 x2 S6 x2 S4 S1 S1 S1 S1 S1 S12 S13 S13 S13 S9 S14 S6 x2 S2 S5 x3 x3 x3 x3 x2 x4 x3 x4...

Page 44: ...MY1A363 1 M6 nsp PCB BRACKET DMP CMD1A669 1 M7 421410006004M BADGE CGB1A206 1 M8 424410019009M RING CGK1A163C23 1 M9 nsp PCB BRACKET CMD1A629 2 M10 nsp FAN BRACKET CMD1A667Z 1 M11 nsp TRANS BRACKET CM...

Page 45: ...e unit in appearances or dimensions Note The symbols in the column Remarks indicate the following destinations U1B North America model N1B Europe model K1B China model Ref No Part No Part Name Remarks...

Page 46: ...1B CQE1A131W 1 6 3 nsp WARRANTY CANADA U1B CQE1A132V 1 6 4 943613000560S CORD ORANGE PIN 1 2MM CJS4M034Z 1 z 6 5 90M ZC000310R CORD POWER PLUG SOCKET UL U1B CJA2A070Z 1 z 6 5 90M ZC000320R CORD POWER...

Page 47: ...22 23 24 25 P2_6 TRDIOC1 P1_7 TRAIO INT1 P1_6 CLK0 P1_5 RXD0 TRAIO INT1 2 P1_4 TXD0 P1_3 KI3 AN11 P2_5 TRDIOB1 P2_4 TRDIOA1 P2_3 TRDIOD0 P2_2 TRDIOC0 P2_1 TRDIOB0 P2_0 TRDIOA0 TRDCLK 26 28 29 30 31 3...

Page 48: ...AVSS L L L GND GND 11 P46 XIN XIN X_IN X X X XIN 1M 16MHz X tal 12 VCC AVCC VCC AVCC H H H VCC 5V 13 P27 YRDIOD1 P27 OUT L H L SPK_ON1 47kPD SPK1 OUT ON OFF Control R8C Tiny Series CPU core A D conve...

Page 49: ...ART for RS232C 29 P67 INT3 RXD1 RXD1 SI H H RXD 10kPU UART for RS232C 30 P12 KI2 AN10 P12 IN L H L DISPLAY KEY 100kPD Display Key input 31 P11 KI1 AN9 KI1 KEY INT AD L H L PWR_BTN 100kPD On Standby ke...

Page 50: ...rol 2 48 P03 AN4 AN4 AD Sensor Voltage L H _HEAT_DET_1 100kPD Power AMP Heat detection 1 NS LM94022 49 P02 AN5 P02 IN H L H _AVSS_DET 10kPU Power AMP AVSS Level detection 50 P01 AN6 P01 OUT L H L AVSS...

Page 51: ...SSOP and 8 ball dBGA2 Packages Lead free Halogen free Die Sales Wafer Form Tape and Reel and Bumped Wafers Description The AT24C04B 08B provides 4096 8192 bits of serial electrically erasable and pro...

Page 52: ...inputs high causes the transfer function to have the largest gain of 13 6 mV C for maximum temperature sensitivity The gain select inputs can be tied directly to VDD or Ground without any pull up or...

Page 53: ...V C E s at V IC 10A 5A 0 17 15 10 5 0 2 2 4 1 Base Emittor Voltage VBE V C o l l e c to r C u r r e n t I C A VCE 4V 1 2 5 C C a s e T e m p 2 5 C 3 0 C C a s e T e m p 200 160 120 80 40 5 0 0 25 50...

Page 54: ...e Current IB A C o l l e c to r E m i tte r S a tu r a ti o n V o l ta g e V C E s a t V IC 10A 5A Safe Operating Area Single Pulse 2 10 100 300 0 2 1 0 5 10 50 5 Collector Emitter Voltage VCE V C ol...

Page 55: ...SIR34ST3F D401 00MHZ21303210 DIODE 1SS355 CVD1SS355T D402 90M HD201750R DIODE 1N4003 CVD1N4003SRT D403 404 00MHZ21303210 DIODE 1SS355 CVD1SS355T D405 407 90M HI101040R L E D SLR342VCTB7T089 HVD342VCTB...

Page 56: ...2 0MM CWB1B01335047 BN42 44 nsp WIRE ASSY 3P 80MM 2 0MM TWIST CWB1B00308047 CN41 nsp CONN STRAIGHT WAFER 2MM CJP13GI236ZW CN42 nsp CONN STRAIGHT WAFER 2mm CJP11GI236ZW CN43 nsp CONN STRAIGHT WAFER 2MM...

Page 57: ...B2 D909 263710016400S LED BLUE LED TOL 52CSBBCEAB2 CVDSLI325URT31WT055 CAPACITORS GROUP C902 906 nsp CER CAP 0 1UF 50V Z CERAMIC CCBS1H104ZFT C912 913 nsp CER CAP 1000PF 50V B CERAMIC CCBS1H102KBT OTH...

Page 58: ...KTC3200GR AT P HVTKTC3200GRT Q207 90M HT100540R TRS KTA1360Y HVTKTA1360Y Q208 90M HT300820R TRS KTC3423Y HVTKTC3423Y Q209 90M HT800120R TRS KTC3114A HVTKTC3114A Q210 90M HT300820R TRS KTC3423Y HVTKTC...

Page 59: ...308 00MHD20015210 DIODE 1SS133T 77 CVD1SS133MT D309 90M HD302410R ZENER DIODE ZJ8 2B 1 2W CVDZJ8 2BT D310 90M HD201750R DIODE 1N4003 CVD1N4003SRT D901 90M HD302410R ZENER DIODE ZJ8 2B 1 2W CVDZJ8 2BT...

Page 60: ...S31 943129000820S RES 0 1 OHM 5W CEMENT CRF5EKR10X2 VR11 943161000920S TRIM RES EVMEGGA00B13 CVN3RE102B02 VR21 943161000920S TRIM RES EVMEGGA00B13 CVN3RE102B02 VR31 943161000920S TRIM RES EVMEGGA00B13...

Page 61: ...00MOA10505020 ELECT CAP 1UF 50V CCEA1HH1R0T C904 nsp CER CAP 0 1UF 50V ZF CCFT1H104ZF C905 nsp CER CAP 0 01UF 50V Z CCFT1H103ZF C906 00MOA10505020 ELECT CAP 1UF 50V CCEA1HH1R0T C907 nsp CER CAP 0 1UF...

Page 62: ...S KTA1360Y HVTKTA1360Y Q308 90M HT300820R TRS KTC3423Y HVTKTC3423Y Q309 90M HT800120R TRS KTC3114A HVTKTC3114A Q310 90M HT300820R TRS KTC3423Y HVTKTC3423Y Q311 90M HT100540R TRS KTA1360Y HVTKTA1360Y Q...

Page 63: ...70S RES METAL OXIDE FILM 1W 1K OHM CRG1SANJ102RT R326 327 00D9430129905 RES 47 OHM 1W J METAL OXIDE FILM KRG1SANJ470RT R328 943124011680S RES 220 OHM 1W J METAL OXIDE FILM CRG1SANJ221RT R329 330 94312...

Page 64: ...0MOA10505020 ELECT CAP 1UF 50V CCEA1HH1R0T C904 nsp CER CAP 0 1UF 50V ZF CCFT1H104ZF C908 00MOA47505020 ELECT CAP 4 7UF 50V CCEA1HH4R7T OTHERS PARTS GROUP BN12 nsp WIRE ASSY 3P 0 250M 3 96MM CWBMM7055...

Page 65: ...C532 533 00MOA22605020 ELECT CAP 22UF 50V CCEA1HH220T C534 nsp CER CAP 47PF 50V JA CCUS1H470JA C536 nsp CER CAP 0 1UF 50V K CCUS1H104KC C537 538 nsp CER CAP 47PF 50V JA CCUS1H470JA C539 540 nsp CER CA...

Page 66: ...00MOA22605020 ELECT CAP 22UF 50V CCEA1HH220T C600 nsp CER CAP 0 1UF 50V K CCUS1H104KC C602 00MOA22605020 ELECT CAP 22UF 50V CCEA1HH220T C602 90M OA000230R ELECT CAP 22UF 25V ROA 25V220MF3 HCEA1EROA220...

Page 67: ...ty New JK501 505 00D2051254007 TERMINAL XLR IN JK 5033U 030 CJS6S005Z JK601 605 943643002710S TERMINAL CINCH 1P RCA 107B 04 CJJ4M046Z RY501 508 943682000810S RELAY 12V 2C2P BC3 12H CSL4A016ZU SW501 50...

Page 68: ...RT R111 nsp RES 390 OHM 1W J METAL OXIDE FILM KRG1SANJ391RT R112 nsp RES 470 OHM 1W J METAL OXIDE FILM KRG1SANJ471RT R122 129 nsp RES 10 OHM 1W J METAL OXIDE FILM KRG1SANJ100RT R137 nsp RES 10 OHM 1W...

Page 69: ...9P 150MM 2 0MM CWB1B00915047 BN12 nsp WIRE ASSY 13P 200MM 2 0MM CWB1B01320047 CN11 nsp CONN STRAIGHT WAFER 3 96MM CJP05GA148ZW CN12 nsp CONN STRAIGHT WAFER CJP03GA90ZY CN13 nsp CONN STRAIGHT WAFER 5P...

Page 70: ...14SANCJ102T R199 200 nsp RES 120 OHM 2W METAL OXIDE FILM CRG2SANJ121RT R201 nsp RES 150 OHM 2W METAL OXIDE FILM CRG2SANJ151RT R202 nsp RES 10 OHM 2W METAL OXIDE FILM CRG2SANJ100RT R203 nsp RES 100 OHM...

Page 71: ...CER CAP 0 1UF 50V K CCUS1H104KC C712 00MOA10701620 ELECT CAP 100UF 16V CCEA1CH101T C713 714 nsp CER CAP 0 1UF 50V K CCUS1H104KC C715 00MOA10803520 ELECT CAP 1000UF 35V CCEA1VH102E C716 nsp CER CAP 0...

Page 72: ...1370S TRANSFORMER SUB EI 28 16 U1B CLT5I008ZU z T701 00D9430193203 TRANSFORMER SUB EI 28 16 N1B CLT5I008ZE z T701 943101005870S SUB TRANSFORMER K1B CLT5I008ZH z 90M FS001080R FUSE 10A 250V U1B KBA2C10...

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