Marantz SR 4003 Service Manual

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TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS ........................................................................................... 1
2. TECHNICAL DESCRIPTION ............................................................................................... 3
3. POWER AMPLIFIER ADJUSTMENT .................................................................................. 6
4. SERVICE MODE .................................................................................................................. 7
5. SYSTEM ERROR ................................................................................................................. 8
6. UPDATE FIRMWARE ......................................................................................................... 11
7. WIRING DIAGRAM ............................................................................................................. 19
8. BLOCK DIAGRAM ............................................................................................................. 23
9. SCHEMATIC DIAGRAM .................................................................................................... 25
10. PARTS LOCATION ............................................................................................................ 45
11. EXPLODED VIEW AND PARTS LIST ............................................................................... 65
12. MICROPROCESSOR AND IC DATA .................................................................................. 69
13. ELECTRICAL PARTS LIST ................................................................................................ 93
14. ABOUT REPLACE THE MICROPROCESSOR WITH A NEW ONE ............................. 136

Please use this service manual With referring tO the user guide ( D. F.U. ) Without fail.
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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 ofshipment

6. Signature: any order form or FaX. must be signed, otherwise such part order will be considered as null and void.

- USA - - EUROPE [TRADING - - CANADA
MARANTZ AMERICA, INC D&M EUROPE B. v. D&M Canada Inc.
100 CORPORATE DRIVE P. 0. BOX 9744, BUILDING SILVERPOINT 5.505 APPLE CREEK BLVD.
MAHWAH, NEW JERSEY 07430 BEEMDSTRAAT11, 5653 MA EINDHOVEN MARKHAM, ONTARIO L3R 5B1
USA THE NETHERLANDS CANADA
PHONE ; +31 - 40 - 2507844 PHONE : 905 - 415 - 9292
FAX : +31 740 , 2507860 FAX : 905. 475 .4159
* JAPAN - KOREA
D&M Holdings Inc. filiilfifi: 3:4 -7y PLAZA-1W? yd; D&M SALES AND MARKETING KOREA LTD.
D&M BUILDING, 2.1 NISSHINCHO, CHUNG JIN HID. #1001,
KAWASAKIFKU, KAWASAKISHI, 5375, WONHYORO 3 GA, YONGSANFGU,
KANAGAWA, 2108569 JAPAN 2i: $i Tam-3569 SEOUL, 140.719, KOREA
fifilllfillllfifiJlllfiflElfiflmd Dane» PHONE ; +82 . 2 . 323 . 2155
FAX :+82-2-323-2154

i CHINA

D&M SALES AND MARKETING SHANGHAI LTD.
ROOMSOS SHANGHAI AIRPORT CITY TERMINAL
NO.16OO NANJING (WEST) ROAD, SHANGHAI,
CHINA. 200040

TEL : 021 , 6248 , 5151

FAX : 021 - 6248 - 4434

NOTE ON SAFETY :

Symbol A Fire or electrical shock hazard. Only original parts should be used to replaced any part marked with symbol A.
Any other component substitution (other than original type), may increase risk of fire or electrical shock hazard.

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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. 60065.

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

0807 02MZ