Marantz SR 4023 Service Manual

Page 1

serVice SR4023 /N1B/U1B
Man 3' Receiver

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TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS ........................................................................................... 1

2. POWER AMPLIFIER ADJUSTMENT .
. SERVICE MODE .................................

3 . 3
4. UPDATE MICROPROCESSOR SOFTWARE PROCEDURE .............................................. 4
5. WIRING DIAGRAM
6. BLOCK DIAGRAM
7
8

. SCHEMATIC DIAGRAM

. PARTS LOCATION
9. EXPLODED VIEW AND PARTS LIST
10. MICROPROCESSOR AND IC DATA
11. ELECTRICAL PARTS LIST ..............
12. ABOUT REPLACE THE MICROPROCESSOR WITH A NEW ONE .............................. 62

Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
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SR4023

Part no. 90M03DW855010
First Issue 2008.07
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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, othenIvise such part order will be considered as null and void.

T USA - , EUROPE l TRADING - - CANADA
MARANTZ AMERICA, INc D&M EUROPE 5. v. D&M Canada Inc.
100 CORPORATE DRIVE P. 0. BOX 8744, BUILDING SILVERPDINT 5-505 APPLE CREEK BLVD.
MAHWAH, NEw JERSEY 07430 BEEMDSTRAAT 11, 5553 MA EINDHOVEN MARKHAM, ONTARIO L3H 531
USA THE NETHERLANDS CANADA
PHONE : +31 - 4o - 2507344 PHONE : 905 - 415 - 9292
FAX :+31 - 4o - 2507350 FAX : 905 - 475 - 4159
* JAPAN - KOREA
D&M Holdings Inc. figfigfi 7-4 -7y HIAm-)V?4 y/jx DEM SALES AND MARKETING KOREA LTD.
D&M BUILDING, 2-1 NISSHlN-CHO, CHUNG JIN BlD., #1001,
KAWASAKI-KU, KAWASAKI-SHI, 53-5, WONHYORO 3 GA, YONGSAN-GU,
KANAGAWA, 210-8569 JAPAN 2:: it 7210-8569 SEOUL, 140-719, KOREA
fililfiiillfifiiillfififlmw D&Mb)l1 PHONE : +32 - 2 - 323 - 2155
FAx :+32 - 2 - 323 - 2154

- CHINA -
D&M SALES AND MARKETING SHANGHAI LTD.
ROOMBOB SHANGHAI AIRPORT CITY TERMINAL
NO.1600 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.

080702MZ