Marantz SR 45 Service Manual

Page 1

74 SR45/01Bl023/053/UBL

Stereo Receiver

Model 74 SR45/028

TABLE OF CONTENTS

SECTION

1. BLOCK DIAGRAM AND COMPONENTS ....................................................................................
2 SCHEMATIC DIAGRAMS, PCB'S AND COMPONENTS .
3. WIRING DIAGRAM ........................
4. EXPLODED VIEW AND PARTS LIST
5. ALIGNMENT PROCEDURES ............................
6. ELECTRICAL PARTS LIST ................................

Please use this sen/Ice manual WIth referring to the user guide(D.F.U.) Without fail.

model SR-45

First issue : 1995

PCS 86 092 4322 725 51079

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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 MAFIANTZ 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.

-U$A~-

MARANTZ AMERICA. INC.
440 MEDINAH ROAD
ROSELLE. ILLINOIS 60172- 2330

USA
PHONE: 708- 307-3100
FAX : 708'307-2687

rCANADA
LENBROOK INDUSTRIES LIMITED
633 GRANITE COURT.
PICKERING. ONTARIO LIW 3K1
CANADA

PHONE: AIG- 81H - 6333

FAX 1 416531-6938

-PROFESSIONAL~USA

SUPERSCOPE TECHNOLOGIES. INC.
MARANTZ PROFESSIONAL PRODUCTS
1000 CORPORATE BLVD. SUITE D

-PR0FESSI0NAL-CANADA--7
rc ELECTRONICS CANADA LTD
540 FIRING {we

BAIE D'URFE. ouaaec Hex m

MARANTZ AUSTRALIA

3 Figtree Drive

Australia Centre

Homebush. NSW2140 AUSTRALIA

AURORA. ILLINOIS 60504 USA CANADA

PHONE: 705-620-4500 PHONE: Sid-45774044

FAX : 708-820-3103 FAX : 514457-5524
-AUSTRALIA -HONG-KONG

FORWARD INTERNATIONAL CORP. LTD.
15 TH FLOOR. REGENT CENTRE.

35 QUEEN'S ROAD. CENTRAL. H. K.
PHONE 2 +852 521- 0883

-EUROPE
MARANTZ EUROPE B.V.
ROBOX 60002

BUILDING SFF2

5600 JB EINDHOVEN

THE NETHERLANDS
PHONE: «3| - 40- 732241
FAX : +3I~40-73557B

-TRAD|NG
MARANTZ EUROPE B.V.
P.O.BOX B0002

BUILDING SFFZ

5600 JB EINDHOVEN

THE NETHERLANDS
PHONE : +31- 40- 73224!
FAX 1 +31-40-735578

-THAILAND
MRZ STANDARD CO.. LTD.

746- 750 WANGBURAPA BANGKOK
10200 THAILAND

PHONE 2 +68 2222 931

PAl-YUING CO.. LTD.

6 TH FL NO. 148 SUNG KIANG RORD.
TAIPEI. I0429. TAIWAN R.o.c.
PHONE: was (2) 522130443

FAX . ; .335 (2) ssaons

*JAPAN-Technr'ca/
MARANTZ JAPN INC.

35 -1.7 - chome. Sagamiono
Sagamihara- slIi. Kanagawa

Japan
PHONE: +81427482BI
FAX I ral 427 48 0889

PHONE : 61 2 742.33 FAX : +852 521A 7835 FAX 1 058 2225 8871
FAX : +61 2 7643074
-TA|WAN -MALAY$IA -SINGAPORE

W0 KEE HONG ELECTRONICS SDN. BHD.
NO. 102 JALAN SS 2I/35. DAMANSARA
UTAMA. 47400 PETALING JAYA
SELANGOR DARUL EHSAN.

MALAYSIA

PHONE: aSO 3-7154688

FAX : ~80 3-7173628

W0 KEE HONG (SINGAPORE) PTE. LTD.
29. LENG KEE ROAD

SINGAPORE 02515,

PHONE l 965 475-4555

FAX . +65 475-8823

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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.1492.

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

SSOSOIKI

PCS 86 093