Marantz SR480 Service Manual

MARANTZ DESIGN AND SERVICE
Using superior design and selected high grade components,
MARANTZ MARANTZ
Only original parts can insure that your
it is famous.
MARANTZ
Parts for your 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.
USA CANADA
MARANTZ AMERICA, INC. LENBROOK INDUSTRIES LIMITED
440 MEDINAH ROAD 633 GRANITE COURT,
ROSELLE, ILLINOIS 60172 PICKERING, ONTARIO L1W 3K1
USA CANADA
PHONE : 630 - 307 - 3100 PHONE : 905 - 831 - 6333
FAX : 630 - 307 - 2687 FAX : 905 - 831 - 6936
USA
SUPERSCOPE TECHNOLOGIES, INC. TC ELECTRONICS CANADA LTD.
MARANTZ PROFESSIONAL PRODUCTS 540 FIRING AVE.
2640 WHITE OAK CIRCLE, SUITE A BAIE DíURF..., QUEBEC H9X 3T2
AURORA, ILLINOIS 60504 USA CANADA
PHONE : 630 - 820 - 4800 PHONE : 514 - 457 - 4044
FAX : 630 - 820 - 8103 FAX : 514 - 457 - 5524
BRAZIL THAILAND
MARANTZ BRAZIL MRZ STANDARD CO., LTD.
CAIXA POSTAL 21462
746 - 754 MAHACHAI RD.,
CEP 04698-970 WANGBURAPAPIROM, PHRANAKORN,
SAO PAULO, SP, BRAZIL
BANGKOK, 10200 THAILAND
PHONE : 0800 - 123123 (Discagem Direta Gratuita) PHONE : +66 - 2 - 222 - 9181
FAX : +55 11 534. 8988
FAX : +66 - 2 - 224 - 6795
AUSTRALIA / NEW ZEALAND
TAIWAN
SCAN AUDIO PTY. LTD. PAl- YUING CO., LTD.
52 CROWN STREET, RICHMOND 3121
6 TH FL NO, 148 SUNG KIANG ROAD,
VICTORIA TAIPEI, 10429, TAIWAN R.O.C.
AUSTRALIA
PHONE : +886 (2) 5221304
PHONE : +61 - 3 - 9429 - 2199 FAX : +886 (2) 5630415
FAX : +61 - 3 - 9429 - 9309
JAPAN Technical
MARANTZ JAPAN, INC.
35- I , 7- CHOME, SAGAMIONO
SAGAMIHARA - SHI, KANAGAWA
JAPAN 228-8505
PHONE : +81 42 748 1013
FAX : +81 42 741 9190
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.
MARANTZ
company has created the ultimate in stereo sound.
product will continue to perform to the specifications for which
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
CANADA KOREA
MK ENTERPRISES LTD.
2F SHINHAN BLDG., 247-17 SEOKYO-DONG
MAPO-KU, SEOUL
KOREA
PHONE : +82 - 2 - 323 - 2155
FAX : +82 - 2 - 323 - 2154
MALAYSIA
WO KEE HONG ELECTRONICS SDN. BHD.
NO. 102 JALAN SS 21/35, DAMANSARA
UTAMA, 47400 PETALING JAYA
SELANGOR DARUL EHSAN,
MALAYSIA
PHONE : +60 3 - 7184666
FAX : +60 3 - 7173828
SINGAPORE
FORWARD MARKETING (S) PTE. LTD.
23, LORONG 8, TOA PAYOH,
SINGAPORE 319257.
PHONE : +65 2583640
FAX : +65 3564047
Service
Manual
SECTION
1. TECHNICAL SPECIFICATIONS (SR480) ...................................................................................................... 1
2. TECHNICAL SPECIFICATIONS (PM488AV) ................................................................................................. 2
3. BLOCK DIAGRAM .......................................................................................................................................... 3
4. WIRING DIAGRAM ......................................................................................................................................... 5
5. SCHEMATIC DIAGRAM AND PARTS LOCATION (Parts Side) .................................................................... 7
6. COMPONENT DESCRIPTIONS ................................................................................................................... 36
7. ALIGNMENT PROCEDURES ....................................................................................................................... 40
8. EXPLODED VIEW AND PARTS LIST (SR480) ............................................................................................ 43
9. EXPLODED VIEW AND PARTS LIST (PM488AV) ...................................................................................... 47
10. ELECTRICAL PARTS LIST .......................................................................................................................... 49
Printed in Japan
981110A.O
Audio/Video Integrated amplifier
SR480
PM488AV

TABLE OF CONTENTS

Please use this service manual with referring to the user guide (D.F.U) without fail.
model SR480/PM488AV
74SR480/
01B/02B
SR480U
Audio/Video receiver
74PM488AV/
02B
PAGE
4822 725 511 91
First Issue:1999 .03
237W855010 AO