Marantz-SR480-avr-sm 电路图 维修手册.pdf

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1、Printed in Japan TABLE OF CONTENTS SECTIONPAGE 1.TECHNICAL SPECIFICATIONS (SR480) . 1 2.TECHNICAL SPECIFICATIONS (PM488AV) . 2 3.BLOCK DIAGRAM . 3 4.WIRING DIAGRAM. 5 5.SCHEMATIC DIAGRAM AND PARTS LOCATION (Parts Side) . 7 6.COMPONENT DESCRIPTIONS. 36 7.ALIGNMENT PROCEDURES. 40 8.EXPLODED VIEW AND P

2、ARTS LIST (SR480). 43 9.EXPLODED VIEW AND PARTS LIST (PM488AV) . 47 10.ELECTRICAL PARTS LIST . 49 Service Manual Please use this service manual with referring to the user guide (D.F.U) without fail. 4822 725 51191 First Issue:1999.03 237W855010 AO SR480U Audio/Video receiver model SR480/PM488AV 74PM

3、488AV/02B 74SR480/01B/02B Audio/Video Integrated amplifier SR480 PM488AV MARANTZ AMERICA, INC. 440 MEDINAH ROAD ROSELLE, ILLINOIS 60172 USA PHONE : 630 - 307 - 3100 FAX: 630 - 307 - 2687 LENBROOK INDUSTRIES LIMITED 633 GRANITE COURT, PICKERING, ONTARIO L1W 3K1 CANADA PHONE : 905 - 831 - 6333 FAX: 90

4、5 - 831 - 6936 MARANTZ EUROPE B. V. P.O.BOX 80002 BUILDING SFF2 5600 JB EINDHOVEN THE NETHERLANDS PHONE : +31 - 40 - 2732241 FAX: +31 - 40 - 2735578 SUPERSCOPE TECHNOLOGIES, INC. MARANTZ PROFESSIONAL PRODUCTS 2640 WHITE OAK CIRCLE, SUITE A AURORA, ILLINOIS 60504 USA PHONE : 630 - 820 - 4800 FAX: 630

5、 - 820 - 8103 TC ELECTRONICS CANADA LTD. 540 FIRING AVE. BAIE DURF, QUEBEC H9X 3T2 CANADA PHONE : 514 - 457 - 4044 FAX: 514 - 457 - 5524 MK ENTERPRISES LTD. 2F SHINHAN BLDG., 247-17 SEOKYO-DONG MAPO-KU, SEOUL KOREA PHONE : +82 - 2 - 323 - 2155 FAX: +82 - 2 - 323 - 2154 MARANTZ BRAZIL CAIXA POSTAL 21

6、462 CEP 04698-970 SAO PAULO, SP, BRAZIL PHONE : 0800 - 123123 FAX: +55 11 534. 8988 PAl- YUING CO., LTD. 6 TH FL NO, 148 SUNG KIANG ROAD, TAIPEI, 10429, TAIWAN R.O.C. PHONE : +886 (2) 5221304 FAX: +886 (2) 5630415 MRZ STANDARD CO., LTD. 746 - 754 MAHACHAI RD., WANGBURAPAPIROM, PHRANAKORN, BANGKOK, 1

7、0200 THAILAND PHONE : +66 - 2 - 222 - 9181 FAX: +66 - 2 - 224 - 6795 WO KEE HONG ELECTRONICS SDN. BHD. NO. 102 JALAN SS 21/35, DAMANSARA UTAMA, 47400 PETALING JAYA SELANGOR DARUL EHSAN, MALAYSIA PHONE : +60 3 - 7184666 FAX: +60 3 - 7173828 MARANTZ JAPAN, INC. 35- I , 7- CHOME, SAGAMIONO SAGAMIHARA -

8、 SHI, KANAGAWA JAPAN 228-8505 PHONE : +81 42 748 1013 FAX: +81 42 741 9190 FORWARD MARKETING (S) PTE. LTD. 23, LORONG 8, TOA PAYOH, SINGAPORE 319257. PHONE : +65 2583640 FAX: +65 3564047 SHOCK, FIRE HAZARD SERVICE TEST : CAUTION : After servicing this appliance and prior to returning to customer, me

9、asure 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 should cause unit to be repaired or corrected bef

10、ore AC power is applied, and verified before it is return to the user/customer. Ref. UL Standard No. 1492. USACANADAEUROPE / TRADING USA BRAZIL (Discagem Direta Gratuita) TAIWAN THAILAND MALAYSIA In case of difficulties, do not hesitate to contact the Technical Department at above mentioned address.

11、 JAPAN TechnicalSINGAPORE 981110A.O SCAN AUDIO PTY. LTD. 52 CROWN STREET, RICHMOND 3121 VICTORIA AUSTRALIA PHONE : +61 - 3 - 9429 - 2199 FAX: +61 - 3 - 9429 - 9309 AUSTRALIA / NEW ZEALAND KOREACANADA MARANTZ DESIGN AND SERVICE Using superior design and selected high grade components, MARANTZ company

12、 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 available to our National Marantz Subsidiary or Agent. ORDERING PARTS : Pa

13、rts 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 numbers and quantities required 3. Description of parts 4. Model num

14、ber 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. RadioFans.CN 收音机爱 好者资料库 1. TECHNICAL SPECIFICATION (SR480) FM Tuner Section Frequency Range .87.5 - 108.0 MHz Usable Sensitivity.IHF

15、0.9 V / 10.8 dBf Signal to Noise Ratio .Mono / Stereo 0.2 / 0.5 % Distortion .Mono / Stereo 0.2 / 0.5 % Stereo Separation .U version 1 kHz 48 dB /01B/02B version 1 kHz 45 dB A.C.S. . 400 kHz 55 dB Image Rejection .98 MHz 50 dB Tuner Output level. U version 1 kHz, 75 kHz Dev 940 mV /01B/02B version 1

16、 kHz, 40 kHz Dev 500 mV AM Tuner Section Frequency .U version 520 - 1710 kHz /01B/02B version 522 - 1611 kHz Usable Sensitivity.Loop 500 V / m Signal to Noise Ratio . 50 dB Distortion .1 kHz, 30 % Mod. 0.5 % Selectivity .U version 20 kHz 70 dB /01B/02B version 10 kHz 25 dB Audio Section Rated Power

17、( 5 ch drive ) Front. 20 Hz - 20 kHz 8 ohms 50 W / ch Center . 1 kHz 8 ohms 50 W Surround . 1 kHz 8 ohms 50 W / ch THD Front .20 Hz - 20 kHz 8 ohms 0.09% Input Sensitivity / Imedance Linear . 200 mV / 47 k ohms Signal to Noise Ratio ( IHF A ) Linear . 92 dB Video Section Input / Output Level / Imped

18、ance . 1.0 Vp-p / 75 ohms Others Power Supply .U version AC 120 V 60 Hz /01B version AC 115 V / 230 V 50 / 60 Hz /02B version AC 230 V 50 Hz Power Consumption. 280 W Dimensions ( MAX ) Width . 17 - 1/4 inches ( 440 mm ) Height.6 inches ( 153 mm ) Depth. 16 - 1/2 inches ( 420 mm ) Weight .31 lbs ( 14

19、 kg ) Specifications subject to change without prior notice. 2. TECHNICAL SPECIFICATION (PM488AV) Audio Section Rated Power ( 5 ch drive ) Front. 20 Hz - 20 kHz 8 ohms 50 W / ch Center . 1 kHz 8 ohms 50 W Surround . 1 kHz 8 ohms 50 W / ch THD Front .20 Hz - 20 kHz 8 ohms 0.09% Input Sensitivity / Im

20、edance Linear . 200 mV / 47 k ohms Signal to Noise Ratio ( IHF A ) Linear . 92 dB Video Section Input / Output Level / Impedance . 1.0 Vp-p / 75 ohms Others Power Supply . 115 / 230 V, 50 / 60 Hz Power Consumption. 280 W Dimensions ( MAX ) Width . 17 - 1/4 inches ( 440 mm ) Height.6 inches ( 153 mm

21、) Depth. 16 - 1/2 inches ( 420 mm ) Weight .31 lbs ( 14 kg ) Specifications subject to change without prior notice. 12 RadioFans.CN 收音机爱 好者资料库 34 3. BLOCK DIADRAM RadioFans.CN 收音机爱 好者资料库 65 4. WIRING DIAGRAM 78 5. SCHEMATIC DIAGRAMS AND PARTS LOCATIONS (Parts side) MAIN SCHEMATIC DIAGRAM IC101Q103Q1

22、01Q102IC102 IC103 IC104Q105IC105Q107Q104 Q108 Q109 Q106 910 MAIN BOARD IC401IC402 1112 INPUT SCHEMATIC DIAGRAMINPUT BOARD 1314 INPUT/VIDEO SCHEMATIC DIAGRAM Q450IC453IC456 IC450 Q451IC452 INPUT/VIDEO BOARD 1516 TUNER SCHEMATIC DIAGRAM ( SR480/01B/02B VERSION) IC4DIC3 Q8LQ9Q8R IC1 Q6Q7D Q3Q1 Q2 Q5 Q4

23、 IC2IC4DIC3 Q8LQ9Q8R IC1 Q6Q7D Q3Q1 Q2 Q5 Q4 IC2 TUNER BOARD (SR480)TUNER BOARD (SR480) 1817 1920 TUNER SCHEMATIC DIAGRAM (SR480 U VERSION) 2122 SURROUND SCHEMATIC DIAGRAM IC802 IC803 IC801 IC805 IC804 IC806 IC807 Q801 Q802 Q803 VOLUME BOARDSURROUND BOARD 2423 Q502 Q503 Q505 Q507 Q509 Q510 Q501 Q504

24、 Q504 Q508 IC510 IC511 IC512 IC502 IC505 IC508 IC501 IC504 IC507 CN02 IC503 IC506 IC509 Q511 Q512 Q513 TO SW BOARD (CP02) Before MZ01 VOLUME SCHEMATIC DIAGRAM 2526 2728 AMP SCHEMATIC DIAGRAM Q212RQ211R Q208R Q209R Q205RQ206R Q201RQ202R Q203RQ204R Q207R Q212SRQ211SR Q208SR Q209SR Q205SR Q206SR Q201SR

25、 Q202SR Q203SR Q204SR Q207SR Q212CQ211C Q208C Q209CQ205CQ206C Q201CQ202C Q203CQ204C Q207C Q212SLQ211SL Q208SL Q209SLQ205SLQ206SL Q201SLQ202SL Q203SLQ204SL Q207SL Q212LQ211L Q208L Q209LQ205LQ206L Q201LQ202L Q203LQ204L Q207L Q214RQ210RQ213RQ215RQ214SRQ210SRQ213SRQ215SRQ214CQ210CQ213CQ215CQ214SLQ210SLQ

26、213SLQ215SL Q214LQ210LQ213LQ215L 2930 AMP BOARD QM01 SW SCHEMATIC DIAGRAM (Before MZ01)SW BOARD (Before MZ01) FRONT SCHEMATIC DIAGRAM 3132 VOL ENC BOARD Q305Q301 Q304 Q307Q309IC301IC601Q311 Q312 Q313Q306 Q302 Q303 Q308 FRONT BOARD 3334 POWER SW SCHEMATIC DIAGRAM POWER SW BOARD SPEAKER SCHEMATIC DIAG

27、RAM SPEAKER BOARD CN01 TO SW BOARD (CP01) Before MZ01 3536 AUX VIDEO SCHEMATIC DIAGRAM HP/SPK SW SCHEMATIC DIAGRAM VOL SEL SCHEMATIC DIAGRAM AUX VIDEOBOARD HP/SPK SW BOARD VOL SEL BOARD 6. COMPONENT DESCRIPTION IC301 1. Pin Configuration 2. Block Diagram 7. ALIGNMENT PROCEDURES TUNER 1.Equipment Req

28、uired AM Standard Signal Generator (AM SSG)Audio Generator OscilloscopeDistortion Meter AC VoltmeterDC Voltmeter FM Standard Signal Generator (FM SSG)Frequency Counter Stereo Modulator Note : Disconnect external FM antenna prior to alignment 2. Alignment and Test Point 3. Pin Functions Pin No. Symbo

29、lDescription Pin No. SymbolDescription 17G8GGrid signal output for FIP.38RESETInput for resetting the CPU. 3VDD+5V power supply.(At L, it is active.) 4P/DInput for power down.39EXTALInput for 10MHz crystal oscillator. 5VOL. UPInput for main volume up.40XTALOutput for 10MHz crystal oscillator. 6RDS C

30、LKCLOCK signal output for TDA7330.41GGround. 7VOL. DOWN Input for main volume down.42 Not used! 8RMCInput for remocon data.43GGround. 9RDS OPTION Input to select RDS or non-RDS.44VDD+5V power supply. (At H, RDS is selected.)45VFDF-30V power supply for FIP. 1011Not used!464094CELC7536 CHIP ENABLE 127536DATADATA signal output for LC7536( FRONT VR).