Marantz SR-4120 Service Manual

Service

SR4120/U1B

Manual

DOWN

STANDBY

POWER

ON/STANDBY

1. TECHNICAL SPECIFICATION ...............................................................................1

2. WIRING DIAGRAM.................................................................................................2

3. BLOCK DIAGRAM ..................................................................................................3

4. SCHEMATIC DIAGRAM AND PARTS LOCATION .................................................5

5. MICROPROCESSOR AND IC DATA ....................................................................16

6. ADJUSTMENT PROCEDURE ..............................................................................18

7. EXPLODED VIEW AND PARTS LIST...................................................................21

8. ELECTRICAL PARTS LIST...................................................................................23

TUNING/PRESET

PHONES

RECEIVER SR4120

Receiver

VOLUME

SPEAKERS

AUX

TAPE MONI

BASS

TREBLE

FM/AM

PHONO

BARANCE

TABLE OF CONTENTS

MIN MAX

FM MODE

MEMO

P.SCAN

F/P

SR4120

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

Printed in Japan

SR4120

309W855010 AO First Issue:2000.10

MARANTZ DESIGN AND SERVICE

Using superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound. Only original it is famous. Parts for your

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.

MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifications for which

MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent.

USA

MARANTZ AMERICA, INCMARANTZ AMERICA, INC. 440 MEDINAH ROAD ROSELLE, ILLINOIS 60172 USA PHONE : 630 - 307 - 3100 FAX : 630 - 307 - 2687

SUPERSCOPE TECHNOLOGIES, INC. MARANTZ PROFESSIONAL PRODUCTS 2640 WHITE OAK CIRCLE, SUITE A AURORA, ILLINOIS 60504 USA PHONE : 630 - 820 - 4800 FAX : 630 - 820 - 8103

AMERICAS

AUSTRALIA

JAMO AUSTRALIA PTY LTD 1 EXPO COURT, P.O. BOX 350 MT. WAVERLEY VIC 3149 AUSTRALIA PHONE : +61 - 3 - 9543 - 1522 FAX : +61 - 3 - 9543 - 3677

NEW ZEALAND

WILDASH AUDIO SYSTEMS NZ 14 MALVERN ROAD MT ALBERT AUCKLAND NEW ZEALAND PHONE : +64 - 9 - 8451958 FAX : +64 - 9 - 8463554

EUROPE / TRADING

MARANTZ EUROPE B.V. P.O.BOX 80002, BUILDING SFF2 5600 JB EINDHOVEN THE NETHERLANDS PHONE : +31 - 40 - 2732241 FAX : +31 - 40 - 2735578

TECHNICAL AUDIO GROUP PTY, LTD 558 DARLING STREET, BALMAIN, NSW 2041, AUSTRALIA PHONE : 61 - 2 - 9810 - 5300 FAX : 61 - 2 - 9810 - 5355

AUSTRALIA

THAILAND

MRZ STANDARD CO., LTD 746 - 754 MAHACHAI ROAD., WANGBURAPAPIROM, PHRANAKORN, BANGKOK, 10200 THAILAND PHONE : +66 - 2 - 222 - 9181 FAX : +66 - 2 - 224 - 6795

TAIWAN

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

BRAZIL

PHILIP DA AMAZONIA IND. ELET. ITDA CENTRO DE INFORMACOES AO CEP 04698-970 SAO PAULO, SP, BRAZIL PHONE : 0800 - 123123 FAX : +55 11 534. 8988

(Discagem Direta Gratuita)

CANADA

LENBROOK INDUSTRIES LIMITED 633 GRANITE COURT, PICKERING, ONTARIO L1W 3K1 CANADA PHONE : 905 - 831 - 6333 FAX : 905 - 831 - 6936

SINGAPORE

WO KEE HONG (S) PTE LTD WO KEE HONG CENTRE NO.23, LORONG 8, TOA PAYOH SINGAPORE 319257 PHONE : +65 2544555 FAX : +65 2502213

MALAYSIA

WO KEE HONG ELECTRONICS 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

JAPAN

MARANTZ JAPAN, INC.

Technical

35- 1, 7- CHOME, SAGAMIONO SAGAMIHARA - SHI, KANAGAWA JAPAN 228-8505 PHONE : +81 42 748 1013 FAX : +81 42 741 9190

KOREA

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

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. 1492.

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

991207A.O

1. TECHNICAL SPECIFICATIONS

FM TUNER SECTION

FREQUENCY RANGE.................................................................................................................... 87.5 - 108.0 MHz

USABLE SENSITIVITY ............................................................................................................... IHF 2.0 V/11.3 dBf

SIGNAL TO NOISE RATIO .............................................................................................. MONO/STEREO 70/65 dB

DISTORTION .................................................................................................................. MONO/STEREO 0.3/0.5 %

STEREO SEPARATION..........................................................................................................................1 kHz 32 dB

A.C.S................................................................................................................................................ 400 kHz 50 dB

IMAGE REJECTION ............................................................................................................................98 MHz 40 dB

TUNER OUTPUT LEVEL.............................................................................................. 1 kHz, 75 kHz Dev 600 mV

AM TUNER SECTION

FREQUENCY RANGE....................................................................................................................... 520 - 1710 kHz

USABLE SENSITIVITY .................................................................................................................... LOOP 500 V/m

SIGNAL TO NOISE RATIO ............................................................................................................................... 40 dB

DISTORTION .......................................................................................................................1 kHz, 30 % Mod. 1.0 %

SELECTIVITY .................................................................................................................................... 10 kHz 25 dB

AUDIO SECTION

RATED POWER...................................................................................................... 20 Hz - 20 kHz 8 ohms 60 W/Ch

THD............................................................................................................................20 Hz - 20 kHz 8 ohms 0.09 %

INPUT SENSITIVITY/IMPEDANCE

LINEAR ......................................................................................................................................... 200 mV/47k ohms

SIGNAL TO NOISE RATIO (IHF-A)

LINEAR ............................................................................................................................................................. 95 dB

OTHERS

POWER SUPPLY...............................................................................................................................AC 120V 60 Hz

POWER CONSUMPTION.................................................................................................................................. 1.8 A

DIMENSIONS (MAX)

WIDTH ............................................................................................................................. 17 - 5/16 inches (440 mm)

HEIGHT................................................................................................................................ 5 - 3/8 inches (137 mm)

DEPTH ............................................................................................................................. 15 - 7/16 inches (392 mm)

WEIGHT..............................................................................................................................................16.5 lbs(7.5kg)

Specifications subject to change without prior notice.

2. WIRING DIAGRAM

3. BLOCK DIAGRAM

3 4

4. SCHEMATIC DIAGRAM AND PARTS LOCATIONS

MAIN SCHEMATIC DIAGRAM

5 6

MAIN BOARD

IC51 Q501 Q411 Q412

Q329 Q381 Q382 Q385 Q384

Q394

Q303

Q315 Q309 Q307 Q311

Q396 Q305 Q319 Q313 Q330

Q202 Q201

IC22 IC23 Q312 Q304 Q308 Q314 Q316 Q310 Q320

IC21 Q413 Q415 Q414

Q321 Q325 Q327 Q323 Q317 Q318 Q322 Q326 Q328 Q324

7 8

+ 15 hidden pages

Marantz SR-4120 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual