Marantz-SC-7-S-1-Service-Manual(1) 电路图 维修手册.pdf

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1、SC-7S1 Part no 340J855020 First Issue 2003.09 ecm Service Manual Please use this service manual with referring to the user guide ( D.F.U. ) without fail. SC7S1 /F1N/N1G/U1G Stereo Control Amplifier TABLE OF CONTENTS SECTIONPAGE 1. TECHNICAL SPECIFICATIONS. 1 2. BLOCK DIAGRAM . 3 3. SCHEMATIC DIAGRAM

2、 . 5 4. PARTS LOCATION. 13 5. IC DATA . 19 6. EXPLODED VIEW AND PARTS LIST . 23 7. SERVICE MODE . 26 8. BUS SPECIFICATIONS. 30 9. ELECTRICAL PARTS LIST . 38 BALANCED SACD / CD LINE 1 DISPLAYATT LINE 2 TAPE ASYNCB inputinput selectorselector powerpower stereostereo controlcontrol amplifieramplifier s

3、csc- -7s17s1 volumevolume SC-7S1SC-7S1 RadioFans.CN 收音机爱 好者资料库 MARANTZ DESIGN AND SERVICE Using superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound. Only original MARANTZ parts can insure that your MARANTZ product will continue to perform to t

4、he specifications for which it is famous. Parts for your MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax. In both cases, the correct part number has to be specified. The following information must b

5、e supplied to eliminate delays in processing your order : 1. Complete address 2. Complete part numbers and quantities required 3. Description of parts 4. Model number for which part is required 5. Way of shipment 6. Signature : any order form or Fax. must be signed, otherwise such part order will be

6、 considered as null and void. SHOCK, FIRE HAZARD SERVICE TEST : CAUTION : After servicing this appliance and prior to returning to customer, measure the resistance between either primary AC cord connector pins ( with unit NOT connected to AC mains and its Power switch ON ), and the face or Front Pan

7、el of product and controls and chassis bottom. Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied, and verified before it is return to the user/customer. Ref. UL Standard No. 1492. In case of difficulties, do not hesitate to contac

8、t the Technical Department at above mentioned address. 030307MIT SUPERSCOPE TECHNOLOGIES, INC. USA MARANTZ AMERICA, INC 1100 MAPLEWOOD DRIVE ITASCA, IL. 60143 USA PHONE : 630 - 741 - 0300 FAX : 630 - 741 - 0301 JAPANTechnical MARANTZ JAPAN, INC. 35- 1, 7- CHOME, SAGAMIONO SAGAMIHARA - SHI, KANAGAWA

9、JAPAN 228-8505 PHONE : +81 42 748 1013 FAX : +81 42 741 9190 EUROPE / TRADING MARANTZ EUROPE B.V. P. O. BOX 8744, BUILDING SILVERPOINT BEEMDSTRAAT 11, 5653 MA EINDHOVEN THE NETHERLANDS PHONE : +31 - 40 - 2507844 FAX : +31 - 40 - 2507860 AUSTRALIA QualiFi Pty Ltd, 24 LIONEL ROAD, MT. WAVERLEY VIC 314

10、9 AUSTRALIA PHONE : +61 - (0)3 - 9543 - 1522 FAX : +61 - (0)3 - 9543 - 3677 NEW ZEALAND WILDASH AUDIO SYSTEMS NZ 14 MALVERN ROAD MT ALBERT AUCKLAND NEW ZEALAND PHONE : +64 - 9 - 8451958 FAX : +64 - 9 - 8463554 THAILAND MRZ STANDARD CO., LTD 746 - 754 MAHACHAI ROAD., WANGBURAPAPIROM, PHRANAKORN, BANG

11、KOK, 10200 THAILAND PHONE : +66 - 2 - 222 9181 FAX : +66 - 2 - 224 6795 TAIWAN PAI- YUING CO., LTD. 6 TH FL NO, 148 SUNG KIANG ROAD, TAIPEI, 10429, TAIWAN R.O.C. PHONE : +886 - 2 - 25221304 FAX : +886 - 2 - 25630415 MALAYSIA WO KEE HONG ELECTRONICS SDN. BHD. 2ND FLOOR BANGUNAN INFINITE CENTRE LOT 1,

12、 JALAN 13/6, 46200 PETALING JAYA SELANGOR DARUL EHSAN, MALAYSIA PHONE : +60 - 3 - 7954 8088 FAX : +60 - 3 - 7954 7088 AMERICAS MARANTZ PROFESSIONAL PRODUCTS 2640 WHITE OAK CIRCLE, SUITE A AURORA, ILLINOIS 60504 USA PHONE : 630 - 820 - 4800 FAX : 630 - 820 - 8103 KOREA MK ENTERPRISES LTD. ROOM 604/60

13、5, ELECTRO-OFFICETEL, 16-58, 3GA, HANGANG-RO, YONGSAN-KU, SEOUL KOREA PHONE : +822 - 3232 - 155 FAX : +822 - 3232 - 154 SINGAPORE WO KEE HONG DISTRIBUTION PTE LTD 130 JOO SENG ROAD #03-02 OLIVINE BUILDING SINGAPORE 368357 PHONE : +65 6858 5535 / +65 6381 8621 FAX : +65 6858 6078 HONG KONG Jolly ProA

14、udio Broadcast Engineering Ltd. UNIT 2, 10F, WAH HUNG CENTRE, 41 HUNG TO ROAD, KWUN TONG, KLN., HONG KONG PHONE : 852 - 21913660 FAX : 852 - 21913990 CANADA LENBROOK INDUSTRIES LIMITED 633 GRANITE COURT, PICKERING, ONTARIO L1W 3K1 CANADA PHONE : 905 - 831 - 6333 FAX : 905 - 831 - 6936 TECHNICAL AUDI

15、O GROUP PTY, LTD 43-53 Bridge Rd., STANMORE NSW 2048 AUSTRALIA PHONE : +61 - (0)2 - 9519 - 0900 FAX : +61 - (0)2 - 9519 - 0600 AUSTRALIA RadioFans.CN 收音机爱 好者资料库 1 1. TECHNICAL SPECIFICATIONS Audio Characteristics Rated Output (20Hz - 20kHz) . 1.7V (Balanced) .1.7V (Unbalanced) Maximum Output (20Hz -

16、 20kHz). 13.5V (Balanced) .13.5V (Unbalanced) Total Harmonic Distortion (20Hz - 20kHz) . 0.0015% (Balanced) . 0.003% (Unbalanced) Frequency Response (+0/-3dB) .3 Hz - 150 kHz(Balanced) . 3 Hz - 150 kHz(Unbalanced) Input Sensitivity / Input Impedance . 420mV / 20k(Balanced) . 420mV / 20k(Unbalanced)

17、Output Impedance .220(Balanced) . 220(Unbalanced) Signal-to-Noise Ratio (IHF-A Network) . 103dB(Balanced) .105dB(Unbalanced) Channel Separation (20kHz). 100dB(Balanced) .100dB(Unbalanced) Volume Adjustment Range.-,-100 - 0dB(0.5dB step) Trim Level Adjustment Range .6dB(0.5dB step) Attenuator Levels

18、. -20, -40, -60, -dB Power Supply Power Requirement /F . AC 100V 50/60Hz /N . AC 230V 50Hz /U . AC 120V 60Hz Power Consumption /F.18 W /N.22 W /U. 0.2 A General Maximum Dimensions. 459(W) x 136(H) x 441 (D) mm Weight . 21kg RadioFans.CN 收音机爱 好者资料库 2 Caution The layout of this amplifier is well conce

19、rned for sound quality. 1. When screws and washers are removed, those parts must be set to the same places. 2. When wires are removed, the wires must be installed in the same roots, same places. 3. Do not hold the side panels (001D, 002D) and the bracket (914G) to move the unit when the unit is disa

20、ssembled. 34 2. BLOCK DIAGRAM 12 3 BALANCED SACD/CD LINE-1 LINE-2 TAPE NFB REC OUT 12 3 BALANCED UNBALANCED-1 UNBALANCED-2 Ach PRE OUT Ach INPUT 22V +5V AMP RELAY LED DISPLAY DRIVER I/V VOL NFB I/V VOL +5V VOL. + - RELAY + + + + + - - - - - DRIVER DRIVER DISPLAY BUS CONTROL IN OUT MUTE 12V P P INPUT

21、 SELECTOR VOLUME ATT SW. DISPLAY SW. IR ID SW. MODE SW. 56 3. SCHEMATIC DIAGRAM + - + - + - + - + - + - + - + - + - + - + - 2SA970 2SC2240 2SC2240 2SA970 2SA970 2SC2240 2SA970 2SC2240 -22V +22V 2SC2240 2SC2240 -22V 2SA970 2SA970 +22V 2SA970 2SA970 2SC2240 2SC2240 1SS176 1SS176 OPA2604AP 1SS176 1SS17

22、6 1SS176 1SS1761SS176 1SS176 -22V +22V -22V +22V 1SS176 1SS176 OPA2604AP OPA2604AP OPA2604AP OPA2604AP OPA2604AP OPA2604AP OPA2604AP OPA2604AP OPA2604AP OPA2604AP OPA2604AP OPA2604AP OPA2604AP OPA2604AP OPA2604AP B_GND A_GND A_- A_+ B_- B_+ 2SA1048 2SC2458 1D3 GND -TAPE BAL MUTE -12 B_GND A_GND B_GN

23、D B_GND B_GND A_GND A_GND A_GND B_GND A_GND B_GND B_GND B_GND B_GND B_GND A_GND A_GND A_GND A_GND A_GND EARTH A_GNDB_GND 1D3 1D3 1D3 1SS176 11EQS10 11EQS1011EQS1011EQS1011EQS10 1 2 3 2 1 3 1 2 1 2 3 1 2 3 1 2 3 1 2 3 (JUMPER ) 1 2 3 1 2 3 (JUMPER ) 1 2 3 1 2 3 1 2 3 1 2 3 (JUMPER ) 1 2 3 1 2 3 (JUMP

24、ER ) 1 2 3 1 2 3 1 2 3 1 2 3 1 2 C416 R436 R434 R438 R440 R442 R444 1 8 435 910 12 R448 (JUMPER) R446 (JUMPER) R433 1 8 435 910 12 R441 R439 R447 (JUMPER ) R445 (JUMPER ) R435 R437 C415 Q417 1 2 3 4 R443 R450 1 8 435 910 12 R455 R458 R449 R456 R453 R464 (JUMPER) R462 (JUMPER) R452 R454 1 8 435 910 1

25、2 R451 C424 R457 C423 R463 (JUMPER) R459 R461 (JUMPER) R460 1 8 435 910 12 C439 R475 1 8 435 910 12 R490 R472 R492 R480 (JUMPER) R483 R494 (JUMPER) R465R481R466 C432 R484 R473 C440 R488 R476 1 8 435 910 12 R478 (JUMPER) R485R495 (JUMPER) C431 R486 R477 (JUMPER) R468 R474 R496 (JUMPER) R493 (JUMPER )

26、 R489 R471 R467 R479 (JUMPER) R482 R469 1 8 435 910 12 R491 R470 R487 1 2 3 4 1 2 3 4 C453 C454 1 2 3 4 1 2 1 2 1 2 3 4 1 2 1 2 1 2 3 4 1 2 1 2 1 2 3 2 1 3 1 2 3 1 2 3 C456 C455 1 2 3 4 C451 C452 C458 C457 1 2 3 4 C459 1 2 3 4 C460 RC36 RC38 CC36CC38 CC37 RC35 CC35 RC37 1 8 435 91012 1 8 435 91012 R

27、C03 RC05 RC07 RC09 1 2 Q418 1 2 3 4 Q420 1 2 3 4 Q419 1 2 3 4 Q422 1 2 3 4 Q421 1 2 3 4 Q424 1 2 3 4 Q423 1 2 3 4 7 5 6 8 7 5 6 8 7 5 6 8 7 5 6 8 7 5 6 8 7 5 6 8 7 5 6 8 7 5 6 8 C418 C420 C417 C419 C426 C428 C425 C427 C434 C436 C433 C435 C442 C444 C441 C443 1 8 435 91012 RC21 1 2 3 1 2 3 1 2 3 4 5 6

28、 7 8 1 2 3 4 5 6 7 8 C464 C462 C463 C461 C414 (N.C) C413 (N.C) C421 (N.C) C430 (N.C) C438 (N.C) C437 (N.C) C429 (N.C) C422 (N.C) C404 (N.C) C402 (N.C) C403 (N.C) C401 (N.C) RC79RC80RC77RC78RC75RC76 RC73 RC74 CD_B_IN CD_A_IN LINE1_A_IN LINE1_B_IN BAL_BIN_+ BAL_BIN_- BAL_AIN_+ LINE2_A_IN TAPE_A_IN TAP

29、E_B_IN LINE1_B_IN LINE1_A_IN LINE2_B_IN LINE2_A_IN TAPE_B_IN A_-22 A_+22 A_+22 A_-22 B_+22 B_-22 A_+22 A_-22 B_+22 B_-22 A_+22 A_-22 B_+22 B_-22 B_+22 B_-22 B_+22 B_-22 A_+22 A_-22 TAPE_A_IN -12S T -12 -12S T -12 -12 A_- A_+ B_+ B_- A_- A_+ B_+ B_- A_+ A_- B_+ B_- A_+ L_1 L_2 TAPE -TAPE A_+ A_- BAL

30、-12 B_+ -12ST B_- A_+ -12 BI -TAPE BAL CD L_1 L_2 TAPE MUTE -12 -12ST BAL MUTE -12 BAL_AIN_- BI CD_A_IN BAL_BIN_- BAL_BIN_+ BAL_AIN_- BAL_AIN_+ -12S T CD -12 -12S T B_+ CD_B_IN B_- A_- LINE2_B_IN B_+ A_- B_- 226K 220P 226K 220P 15.4k 22.622.6 15.4K 100K 22 220/25V 100K 15.4K 22.622.6 22/25V 220/25V

31、15.4K 22 15.4K 22.6 100K 15.4K 226K 226 226K 22.6 15.4K 22 220P 22/25V 22/25V 100K 220P 220/25V220/25V 22 22.6 15.4K 22.6 220p 22.6K 2.26K 2.26K 100K 100K 22.6K 100K 2.26K 2.26K 220p 100K 22.6K 2.26K 100K 22.6K 2.26K 2.26K 2.26K 220p 100K 220p 100K100K 220p 100K 100K 2.26K 100K 22.6K22.6K22.6K 220p

32、100K 220p 2.26K 100K 2.26K 220p 2.26K 100K100K 2.26K 22.6K 2.26K 100K 2.26K 2.26K 0.1 0.10.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 22 22 1000/25 V1000/25 V1000/25V 22 1000/25V 22 22 22 22 22 22 22/25V 22/25V 22/25V 22/25V 22/25V 22/25V 22/25V 22/25V 22/25V 22/25V 22/25V 22/25V 22/25V 22/25V 22/25V 22/25V 22/2

33、5V 22 22 0.1 22K 4.7K 10K 15K 22K 10/35V 10/35V 10/35V 10/35V 22.6K22.6K22.6K22.6K 2.26K2.26K2.26K2.26K2.26K2.26K 2.26K 2.26K W007 J003 J005 R404 R408 C408 R402 R406 C406 Q404 Q408 R412 Q412 R420R424 Q416 R416 R432 R428 RC34 CC34 R426 Q414 Q406 R414 R418R422 C410 R430 CC32 Q402 Q410 R410 RC32 Q405 Q

34、407 R411 R419 R425 R409 R431 R401 R407 Q413 Q401 R403 R423 R415 RC33 R429 C405 C411 C409 R427 C407 Q403 CC31 Q415 R405 Q409 Q411 CC33 RC31 R417 R413 R421 J006 LC04 DC04 LC03 DC03 LC06 DC05 LC05 DC06 LC07LC09 DC07 DC08 LC10 DC10 LC08 DC09 J403W009 W010 J008 J007 W011 J010 J009 W012 J011 J012 W008 J00

35、4 J402 J401 J405 J407 J409 LC02 DC02 DC01 RC01 LC01 Q418 Q417 Q420 Q419 Q422 Q421 Q424 Q423 C412 LC21 DC21 RC18 CC11 QC11 QC12 JC03 DC11 RC15 RC14 RC13 RC11 RC12 LC11 W018 R500R498R499R497 DC12 DC13 DC14 DC15 DC16 DC20DC19DC18DC17 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 2/2 2/2 2/2 2/2 2/2 2/2 2/2 2/2 B A B

36、ALANCED CD B A A B LINE_1 LINE_2 A B B A TAPE BAL CD L_1 L_2 TAPE MUTE BI -12 FROM J201 11.6(BALANCED) 11.6(SACD/CD) 11.6(LINE1) 11.6(LINE2) 11.6(TAPE) ON :-11.7 / OFF:+11.6 S.T.:-11.7 / BI.:+11.5 -11.7 TAPE:-11.6 OTHER:+11.0 S.T.:-11.7 BI.:+11.5 P101 1/2 226 226 226 226 226 226 226 226 226 226 226 78 + - + - + - + - + - 1