Marantz-SR3000-avr-sm 电路图 维修手册.pdf

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1、AV Surround Receiver TABLE OF CONTENTS SECTIONPAGE 1. LOCATION OF PRINTED CIRCUIT BOARDS/VERSION VARIATIONS . 1-1 2. TECHNICAL SPECIFICATION. 1-3 3. SERVICE TOOL/MEASUREMENT SET UP/SAFETY . 1-5 4. WARNING/HANDLING CHIP COMPONENTS . 1-6 5. DISMANTLING HINTS . 2-1 6. ABREVIATIONS . 2-2 7. WIRING DIAGR

2、AM. 3-1 8. BLOCK DIAGRAM. 4-1 9. SERVICE TEST PROGRAM .5-1 10. FRONT BOARD.6-1 11. TUNER BOARD ECO5.7B-1 12. TUNER 95 BOARD. 7D-1 13. DOLBY PROLOGIC BOARD .8-1 14. MULTI-CHANNEL DECODING MODULE. 9-1 15. MAINS BOARD. 10-1 16. MONO BOARD . 11-1 17. EXPLODED VIEW . 12-1 18. ELECTRICAL PARTS LIST MONO B

3、OARD . 13-1 Service Manual SR3000 /N1B, /U1B SR4000 /K1B, /K1G, /N1B, /U1B Please use this service manual with referring to the user guide (D.F.U) without fail. R SR3000 / SR4000 283W855010 ACT 3120 785 22200 First Issue:2000.03 SR3000 SR4000 RadioFans.CN 收音机爱 好者资料库 MARANTZ DESIGN AND SERVICE Using

4、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 the specifications for which it is famous. Parts for your MARANTZ equipment are generally availab

5、le 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 be supplied to eliminate delays in processing your order : 1. Complete address 2. Complete part n

6、umbers 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 considered as null and void. SHOCK, FIRE HAZARD SERVICE TEST : CAUTION : After servicing this a

7、ppliance 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 Panel of product and controls and chassis bottom. Any resistance measurement less than 1 Megohms sh

8、ould 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 contact the Technical Department at above mentioned address. 991207ACT USAUSA MARANTZ AMERICA, INCMARA

9、NTZ AMERICA, INC. 440 MEDINAH ROAD ROSELLE, ILLINOIS 60172 USA PHONE : 630 - 307 - 3100 FAX : 630 - 307 - 2687 BRAZILBRAZIL PHILIP DA AMAZONIA IND. ELET. ITDAPHILIP DA AMAZONIA IND. ELET. ITDA CENTRO DE INFORMACOES AO CEP 04698-970 SAO PAULO, SP, BRAZIL PHONE : 0800 - 123123(Discagem Direta Gratuita

10、) FAX : +55 11 534. 8988 JAPANJAPAN Technical MARANTZ JAPAN, INC.MARANTZ JAPAN, INC. 35- 1, 7- CHOME, SAGAMIONO SAGAMIHARA - SHI, KANAGAWA JAPAN 228-8505 PHONE : +81 42 748 1013 FAX : +81 42 741 9190 EUROPE / TRADING EUROPE / TRADING MARANTZ EUROPE B.V.MARANTZ EUROPE B.V. P.O.BOX 80002, BUILDING SFF

11、2 5600 JB EINDHOVEN THE NETHERLANDS PHONE : +31 - 40 - 2732241 FAX : +31 - 40 - 2735578 TECHNICAL AUDIO GROUP PTY, LTDTECHNICAL AUDIO GROUP PTY, LTD 558 DARLING STREET, BALMAIN, NSW 2041, AUSTRALIA PHONE : 61 - 2 - 9810 - 5300 FAX : 61 - 2 - 9810 - 5355 CANADACANADA LENBROOK INDUSTRIES LIMITEDLENBRO

12、OK INDUSTRIES LIMITED 633 GRANITE COURT, PICKERING, ONTARIO L1W 3K1 CANADA PHONE : 905 - 831 - 6333 FAX : 905 - 831 - 6936 AUSTRALIAAUSTRALIA JAMO AUSTRALIA PTY LTDJAMO AUSTRALIA PTY LTD 1 EXPO COURT, P.O. BOX 350 MT. WAVERLEY VIC 3149 AUSTRALIA PHONE : +61 - 3 - 9543 - 1522 FAX : +61 - 3 - 9543 - 3

13、677 NEW ZEALANDNEW ZEALAND WILDASH AUDIO SYSTEMS NZWILDASH AUDIO SYSTEMS NZ 14 MALVERN ROAD MT ALBERT AUCKLAND NEW ZEALAND PHONE : +64 - 9 - 8451958 FAX : +64 - 9 - 8463554 THAILANDTHAILAND MRZ STANDARD CO.,LTDMRZ STANDARD CO.,LTD 746 - 754 MAHACHAI ROAD., WANGBURAPAPIROM, PHRANAKORN, BANGKOK, 10200

14、 THAILAND PHONE : +66 - 2 - 222 9181 FAX : +66 - 2 - 224 6795 TAIWANTAIWAN PAI- YUING CO., LTD.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 MALAYSIAMALAYSIA WO KEE HONG ELECTRONICS SDN. BHD.WO KEE HONG ELECTR

15、ONICS SDN. BHD. SUITE 8.1, LEVEL 8, MENARA GENESIS, NO. 33, JALAN SULTAN ISMAIL, 50250 KUALA LUMPUR, MALAYSIA PHONE : +60 3 - 2457677 FAX : +60 3 - 2458180 AMERICAS AMERICAS SUPERSCOPE TECHNOLOGIES, INC.SUPERSCOPE TECHNOLOGIES, INC. MARANTZ PROFESSIONAL PRODUCTS 2640 WHITE OAK CIRCLE, SUITE A AURORA

16、, ILLINOIS 60504 USA PHONE : 630 - 820 - 4800 FAX : 630 - 820 - 8103 AUSTRALIA AUSTRALIA KOREAKOREA MK ENTERPRISES LTD.MK ENTERPRISES LTD. ROOM 604/605, ELECTRO-OFFICETEL, 16-58, 3GA, HANGANG-RO, YONGSAN-KU, SEOUL KOREA PHONE : +822 - 3232 - 155 FAX : +822 - 3232 - 154 SINGAPORESINGAPORE WO KEE HONG

17、 (S) PTE LTDWO KEE HONG (S) PTE LTD WO KEE HONG CENTRE NO.23, LORONG 8, TOA PAYOH SINGAPORE 319257 PHONE : +65 2544555 FAX : +65 2502213 RadioFans.CN 收音机爱 好者资料库 VERSION VARIATIONS SR3000 Features Rt inputs. (in phase 0) 2- The next tone burst is given at the same time to the L t Rt input, but in rev

18、erse phase to the Rt input (180). These 2 tone bursts are repeated continuously during 2 minutes. -Principle description decoded signal spots in Center/Surround channel - In case of 20 msec time delay mode the results are shown in fig. 1 in Center and Surround channel. The center spots in Center cha

19、nnel can be used as Marker spots (trigger signal) repeated every 40 msec. The delayed surround spots occur at the same time as the center spots (markers) - When time delay mode is changed to 15 msec the delayed surround spots move to the left with respect to the centre mark spots. - When time delay

20、mode is changed to 25 msec or 30 msec the delayed surround spots move to the right with respect to the center spots. - In case of no time delay ! (faulty condition) the surround spots fall just between 2 center markers spots (20 msec) -How to check with a double beam scope WARNING: Be sure that the

21、ground connection (-) of each instrument is not connecteded with the safety earth connection. To avoid damage to output amplifiers (balance type) Use only cinch (input) ground connection - Select Pro Logic size “LARGE” or “SMALL” (phantom in case of no Center output.) - Select 20 msec time delay in

22、Surround channel. - Adjust scope at 5 msec/division and trigger at A input - Connect input A to Center channel (or L or R in case of phantom mode) - Connect input B to Surround channel - Adjust trigger level and the X position to set pulse A in the middle of the scope . see fig.2 (if L or R used in

23、phantom mode choose the largest (amplitude) pulse. see fig 3 Select track 24: Pulse A = 20 msec marker Pulse B = delayed surround signal pulse marker = A (adjust with X position)marker = A 20msec time delay20msec in case of phantom mode Fig 2Fig 3 A B A B 8-48-4 Change time delay to 15 msec (only in

24、 versions with variable delay). he surround pulse in channel B moves to the left with respect to side from center marker (channel A) position. Change time delay to 25 or 30 msec (versions with variable delay). The surround pulse in channel B moves to the right with respect to center marker (channel

25、A) position. Time delay with track 6 Alternative methode : The functional operation of the time delay can be made visible with a lisajous figure, with an single beam scope. Connect X-direction on Surround output Connect Y-direction on Left or Right output/input. Note : be careful and use only 1 grou

26、nd connected to scope. Select track 6 (surround test) : Make the lisajous figure visible on the scope (amplitude adjust) see fig. 4 Lisajous out of phase Fig 4Time delay = OK Note : in sets with variable time delay the ellipse of the lisajous figure must be always open. Changing the time delay chang

27、es the direction of the circle accordingly. CHANNEL modes: Surround OFF (Stereo) 2 channel mode Signal on :L out (2703) and R out (2704) Surround ON -Prologic 4 channel mode all four outputs are used Signal on : L out (2703), R out (2704), Center out (2705), Surround (2706). -Front 3 stereo No surro

28、und speaker available The surround information is equelly to the left and right outputs. Signal on : L out (2703), R out (2704), Center out (2705). -HALL Signal on : L out (2703), R out (2704), Surround (2706). Subwoufer out. not in all versions Signal on : Subwoofer out (2788). (.) as indicated on

29、the component side of the DPL decoder board. 15 msec. 25 msec. 20 msec. 1 msec = 1kHz 20 msec 20 msec20 msec 40 msec 30 msec30 msec 25 msec25 msec15 msec15 msec Lt Surround Amplifier Output Center Amplifier Output Rt Result in Center / Surround channel Encoded signaal ! No Time Delay ! No Time Delay

30、 MarkerMarker D C B A Surround 180 Info Surround 180 Info Surround 180 Info Center 0 Info Center 0 Info Center 0 Info Fig 1 fig 1d fig 1c fig 1a fig 1b 8-58-5 DOLBY PROLOGIC - CIRCUIT DIAGRAM / LPF VOL - + NR DECODER B-TYPE MODIFIED DUAL-TIME CONSTANT AMPLIFIERS DIFFERENCE LOG RECTIFIER FULL WAVE VR

31、EF NOISE SEQUENCER IREF BPF BPF AVcc VREFA VOLVOL SELECTOR 1 + - M + - M - + ATT MIX EC SU MOS SFB SELECTOR 2 MODE SELECTOR 3 CRL RCL AGND + - CONTROL CENTER SERVO VCA BALANCE AUTO SELECTOR VCA NETWORKS COMBINING L+R L-R A/DD/A LPF +9.2dB AND THRESHHOLD SWITCHES VREFD AVdd AVssDVss CLK 16kSRAM LOGIC

32、 REQSCKDATA MCU Interface CNT TEST MIC + DVdd + +9.2dB 2 L-R 2 L+R S -9.2dB 3784 D3 3785 D4 3788 E4 2 F G H I 1701 F1 1702 H1 2701 I2 2702 I2 2703 E9 2704 F9 2705 G9 2706 F9 2707 G10 2708 E12 2709 D7 2710 D8 2711 D8 F707 H2 3728 B12 3733 B11 3734 B11 F708 H2 F709 H2 F710 H2 F711 H2 F712 I2 F713 I2 F

33、714 I2 F716 D8 F717 D8 F718 D8 F719 E9 F720 E9 F721 E9 F722 E9 F723 H13 F724 H13 F725 H13 3743 C8 3744 C8 3745 B7 3746 B7 3747 D5 3748 D5 3749 F10 3751 F10 3780 E2 3781 E2 3782 E2 3783 D3 2764 F10 2765 E10 2780 D3 4720 H13 4721 H13 5701 F12 7701 B8 7780-A C3 7780-B C4 F701 F2 F702 F2 F703 F2 F704 F2

34、 F705 G2 3704 F9 3705 G9 3706 G9 3709 D8 3710 E8 3712 D6 3714 E10 F706 G2 3716 E12 3718 H3 3719 H3 3720 H3 3727 B12 2736 B11 2737 B11 2738 B11 3735 A12 3736 A12 3737 A11 3739 C8 3740 B8 3741 C7 3742 C7 2751 B9 2752 B8 2753 B8 2754 C7 2755 B8 2756 B7 2757 C7 3750 E10 2759 D12 2760 A10 2761 E8 2762 D6

35、 2763 D5 F G H 2781 D2 2783 D4 2785 C3 2788 D4 2789 E2 3701 C6 3702 C5 3703 F9 2723 D12 2724 D13 2725 D12 2726 D12 2727 C12 2728 C13 2729 C12 3715 F10 2731 C12 2732 B12 2733 B12 2734 B12 2735 B12 8910 2739 B10 2740 B10 2741 B10 2742 B10 2743 B10 2744 B10 2745 B9 2746 B9 2747 B9 2748 B9 2749 B9 2750

36、B9 101112 2758 C8 A B C D E 13 I A B C D E 2718 H4 2719 H4 2720 H4 2712 E8 2713 G10 2714 F10 2715 D7 2716 E13 2717 D6 1 2730 C13 34567 A 111213 123456789 F708 F709 2742 4u7 A 3737 330K 3728 47K A F719 3727 47K 2736 220p 2748 100n 10u 2706 3749 18K 3750 10K 100u 2709 A D D F712 220K 3710 A A 2781 22p

37、 2762 470p 2780 330n A 2763 470p 2719 100p 3709 100K F711 A 100n 2745 XH-S 1 2 3 4 5 6 7 8 9 1u 2760 1701 47n 2738 A 100n 2749 4u7 2741 A 3720 1K A D 2716 100n F717 F718 5 6 7 8 4 F716 F714 NJM4560M 7780-B A 100K 3703 2701 10u A 220u D 100u 2708 2765 470p 2710 10K 3714 100n 100u 2707 3782 A 2714 470

38、R 3747 10K 100n 2755 3734 12K 2702 10u 2729 68n A 2752 A A 10u 2703 100n 3736 12K F713 15K 3742 A 3741 2758 100n 100p 2718 47K D A A A A CST 5701 XH-S 1 2 3 4 5 6 7 8 9 A 2759 22u 1702 A A A A 2731 1n8 680p 3739 47K 100K 3704 A 2753 10u 2705 2715 100n 2743 220n D 3716 1M 2723 1u A 12K 3735 A 3783 1K

39、8 A 2789 10u F722 3712 4M7 4 D F721 NJM4560M 7780-A 3 2 1 8 1K 2717 22u 3784 F706 A 3718 1K 2730 10n 3719 2720 100p 22n 2751 1K 3785 1K 1n 100n 2728 2724 10n 2764 A F705 2737 5n6 2712 47u 10u 2704 10K 3781 3705 100K 2783 100n 2733 73 74 75 76 77 78 79 8 80 9 22p 6 6061626364 65 66 67 68 69 7 70 71 7

40、2 4546474849 5 50515253545556575859 31 32 33 34 35 36 37 38 39 4 40 41424344 181922021222324 25 26 27 28 29 3 30 M62460 7701 11011121314151617 2746 47n D 100n 2727 2747 47n 100n 2785 100n 2713 A A 10u 2711 2744 220n A 2757 100n 680R 37443743 6K8 3701 3748 470R 2788 3706 100K 100K 10K 3780 10u 100K 3

41、702 2735 100n 100n 2756 2750 22n 3745 6K8 F707 A 680R 3746 1n8 2732 100n A 3740 15K 2734 220n F701 3733 12K 2740 220n 2739 6K8 3751 15K 2725 1n8 3715 F702 2726 68n F720 3788 100K A 680p 2754 F704 F703 F710 2761 5n6 +9A +9A+9A +9A file:dplcircuit755 updated 14-04-99 Subwoofer out Surround out Center

42、out Right out Left out Right In Left In The mentionned points are indicated on the components side of the Dolby Pro Logic board. L out R out C out S out +5V 4Mc +9,2V 4V Subw out 4V 4V 4V +9,2V +9,2V +9,2V Rt in Lt in Subwoofer circuit 4V 4V 4V 4V4V4V4V 4V 4V 4V 4V CBA 2 1 CBA 2 1 CBA 1 2 CBA 1 2 8-

43、6 DOLBY PROLOGIC BOARD - COMPONENT VIEW DOLBY PROLOGIC BOARD - COPPER SIDE VIEW 8-7 ELECTRICAL PARTSLIST - DOLBY PROLOGIC BOARD MISCELLANEOUS 10034822 214 13051DPL MODULE 27014822 124 4157910UF 20% 50V 27024822 124 4157910UF 20% 50V 27034822 124 4157910UF 20% 50V 27044822 124 4157910UF 20% 50V 27054