Marantz SR 480 Service Manual

Page 1

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 pan 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 numberfor 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.

-USA

MARANTZ AMERICA, INC.
440 MEDINAH ROAD
ROSELLE, ILLINOIS 60172
USA

PHONE : 630 7 307 7 3100
FAX : 630 7 307 7 2687

-CANADA

LENBROOK INDUSTRIES LIMITED
633 GRANITE COURT,
PICKERING, ONTARIO L1W 3K1
CANADA

PHONE : 905 7 831 7 6333

FAX : 905 7 831 7 6936

- PHDFESSIDNAL USA

SUPERSCOPE TECHNOLOGIES, INC.
MARANTZ PROFESSIONAL PRODUCTS
2640 WHITE OAK CIRCLE, SUITEA
AURORA, ILLINOIS 60504 USA

PHONE :630 7 820 7 4800

FAX : 630 7 820 7 8103

- EUROPE / TRADING

MARANTZ EUROPE B. V.
P.O.BOX 80002

BUILDING SFF2

5600 JB EINDHOVEN

THE NETHERLANDS
PHONE : +31 7 40 7 2732241
FAX : +31 7 40 7 2735578

- PHnFESSIDN/ll CANADA

TC ELECTRONICS CANADA LTD.
540 FIRING AVE.

BAIE DIURF..., QUEBEC H9X 3T2
CANADA

PHONE : 514 7 457 7 4044

FAX : 514 7 457 7 5524

- KOREA
MK ENTERPRISES LTD.

MAPO7KU, SEOUL

KOREA

PHONE : +82 7 2 7 323 7 2155
FAX :+8272732372154

2F SHINHAN BLDG, 247717 SEOKYO7DONG

-BRAZ|L

MARANTZ BRAZIL

CAIXA POSTAL 21462

CEF' 046987970

SAO PAULO. SP, BRAZIL

PHONE : 0800 7 123123(Discagem DIrela Gratulla)
FAX : +55 11 534. 8988

- THAILAND

MRZ STANDARD 00., LTD.

746 7 754 MAHACHAI RD.,
WANGBURAPAPIROM. PHRANAKORN,
BANGKOK, 10200 THAILAND

PHONE : +66 7 2 7 222 7 9181

FAX : +66 7 2 7 224 7 6795

- AUSTRALIA / NEW ZEALAND

SCAN AUDIO PTV. LTD.

52 CROWN STREET. RICHMOND 3121
VICTORIA

AUSTRALIA

PHONE :+61 7 3 7 9429 7 2199

FAX : +61 7 3 7 9429 7 9309

TAIWAN

PAI- VUING CO., LTD.

6 TH FL NO, 148 SUNG KIANG ROAD,
TAIPEI, 10429, TAIWAN R.O.C.
PHONE : +886 (2) 5221304

FAX : +886 (2) 5630415

-JAPAN Technical

' MALAYSIA

W0 KEE HONG ELECTRONICS SDN. BHD.
NO. 102 JALAN SS 21 /35, DAMANSARA
UTAMA, 47400 PETALING JAYA
SELANGOR DARUL EHSAN,

MALAYSIA

PHONE : +60 3 7 7184666

FAX : +60 3 7 7173828

MARANTZ JAPAN, INC.

357 | , 77 CHOME, SAGAMIONO
SAGAMIHARA 7 SHI, KANAGAWA
JAPAN 22878505

PHONE :+81 42 7481013

FAX :+81 42 741 9190

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' SINGAPORE

FORWARD MARKETING (S) PTE. LTD.
23, LORONG 8, TOA PAYOH,
SINGAPORE 319257.

PHONE : +65 2583640

FAX : +65 3564047

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.

981110A.O

Service
Manual

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SR480U

Audio/Video receiver

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74PM488AV/023

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TABLE OF CONTENTs
SECTION PAGE
1. TECHNICAL SPECIFICATIONS (SR480) ...................................................................................................... 1
2. TECHNICAL SPECIFICATIONS (PM488AV) .. 2
3. BLOCK DIAGRAM
4. WIRING DIAGRAM.
5. SCHEMATIC DIAGRAM AND PARTS LOCATION (Parts Side) .................................................................... 7
6. COMPONENT DESCRIPTIONS ................................................................................................................... 36
7. ALIGNMENT PROCEDURES ....................................................................................................................... 4o
8. EXPLODED VIEW AND PARTS LIST (SR480) ............................................................................................ 43
9. EXPLODED VIEW AND PARTS LIST (PM488AV) ...................................................................................... 47
10. ELECTRICAL PARTS LIST .......................................................................................................................... 49

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

maranll®

Printed in Japan

model SR480/PM488AV

4822 725 51191
First lssue:1999.03
237W855010 AO