Marantz SR 4300 Service Manual

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TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS ........................................................................... 1
2. WIRING DIAGRAM
3. BLOCK DIAGRAM ..
4. SCHEMATIC DIAGRAM ....................................................................................... 9
5. PARTS LOCATION 31
6. IC DATA .................... ...45
7. EXPLODED VlEW AND PARTS LIST ................................................................ 51
8. SERVICE PROCEDURE 55
9. ELECTRICAL PARTS LIST 58

Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
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SR4300

09AW855010 MIT
First Issue 2002.12

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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 the 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 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 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.

7 USA - 7 EUROPE / TRADING - - CANADA
MARANTZ AMERIcA, INC MARANTz EUFIOPE B.V. LENBROOKINDUSTRIES LIMITED
1100 MAPLEWOOD DRIVE P. 0. BOX 6744, BUILDING SILVERPOINT 633 GRANITE COURT,
ITASCA, IL, 50143 BEEMDSTRAAT 11, 5653 MA EINDHOVEN PICKERING, ONTARIO L1w 3K1
USA THE NETHERLANDS CANADA
PHONE : 630 7 741 7 0300 PHONE :+31 7 40 7 2507344 PHONE :905 7 331 7 6333
FAX :630 7 741 7 0301 FAX :+31 7 40 7 2507360 FAX :305 7 331 7 6936

- PHDFESSIDNAL AMERICAS - TPHDFESSIUNAL AUSTRALIA i T PHflI-ESlafll HONG KONG 7
SUPERSCOPE TECHNOLOGIES, INc. TECHNIcAL AUDIO GROUP PTv, LTD Jolly ProAudiD Broadcast Engineering Ltd.
MAFIANTZ PROFESSIONAL PRODUCTS 556 DARLING STREET, UNIT 2, 10F, WAH HUNG CENTRE.
2640 WHITE OAK CIRCLE, SUITE A BALMAIN, Nsw 2041, 41 HUNG TO ROAD, KWUN TONG. KLN.,
AURORA, ILLINOIS 60504 USA AUSTRALIA HONG KONG
PHONE : 630 7 820 7 4300 PHONE :61 7 2 7 33107 5300 PHONE : 352 721913660
FAX :6307820-8103 FAX :61727981075355 FAX :352721313990

7 AUSTRALIA - 7 THAILAND - 7 SINGAPORE -
OuaIiFi PIy Ltd, MR2 STANDARD co., LTD wo KEE HONG DISTRIBUTION PTE LTD
24 LIONEL ROAD, 746 7 754 MAHACHAI ROAD, 130 +100 SENG ROAD
MT. WAVERLEY VIC 3143 WANGBURAPAPIROM, PHRANAKORN, #03702 OLIVINE BUILDING
AUSTRALIA BANGKOK, 10200 THAILAND SINGAPORE 363357
PHONE : +61 7(0)3 7 3543 71522 PHONE : +66 7 2 7 222 3131 PHONE : +65 6858 5535/ +65 6381 8621
FAX : +61 7 (0)3 7 9543 7 3677 FAX : +66 7 2 » 224 6795 FAX : +65 6858 6078

7 NEw ZEALAND 7 TAIWAN - 7 MALAYSIA -
WILDASH AUDIO SYSTEMS NZ PAI- VUING co., LTD. wo KEE HONG ELECTRONICS SDN. BHD.
14 MALVERN ROAD MT ALBERT 6 TH FL NO, 143 SUNG KIANG ROAD, 2ND FLOOR BANGUNAN INFINITE CENTRE
AUCKLAND NEw 2EALAND TAIPEI, 10429, TAIWAN R.O.C. LOT 1, JALAN 13/6, 46200 PETALING JAYA
PHONE : +64 7 9 7 3451953 PHONE :+886 7 2 7 25221304 SELANGOR DARUL EHSAN, MALAYSIA
FAX : +64 7 9 7 6463554 FAX :+336 7 2 7 25630415 PHONE : +60 » 3 7 7954 3033

FAX :+60 7 3 7 7954 7033

- JAPAN Technical 7 KOREA
MARANTz JAPAN, INC. 8 Z: V 5 y y H: ifi 53 $1 MK ENTERPRISES LTD.
357 1, 77 CHOME, SAGAMIONO _ ROOM 604/605, ELECTFIOOFFICETEL, 16758,
SAGAMIHARA 7 SHI, KANAGAWA 73 *1 T228-3505 3GA, HANGANGrFIO, YONGSAN7KU, SEOUL
JAPAN 22373505 its?) I ifitfiféienafsféxewam KOREA
PHONE : +31 42 7431013 §%$EB T150-0022 PHONE : +322 7 3232 - 155
FAX :+31 42 741 3190 iistifiegfitfifi1-1 1-9 FAX 822 , 3232.154

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 Panel 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. 6500.

In case of difficulties, do not hesitate to contact the Technical
Department at above mentioned address.

020816MIT