Marantz MA 700 Service Manual

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MA700 U, F

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TABLE OF CONTENTS

SECTION PAGE

1.

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SPECIFICATIONS ...............................
IDLING CURRENT ADJUSTMENT
MICROCOMPUTER PIN LAYOUT....
PORT ASSIGNMENT TABLE ...........................................................
POWER AMPLIFIER INTERNAL OPERATION DESCRIPTION ..
BLOCK DIAGRAM ...................................................................................
SCHEMATIC DIAGRAM AND PARTS LOCATION (Pattern Side} ..
EXPLODED VIEW AND PARTS LIST ..................................................................................................... 13

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Please use this service manual with referring to the user guide ( DF.U. ) without fail.
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Mono Amplifier

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First Issue : 1997, 10

4008855 010 BB

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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 infomation 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 --- - EUROPE
MARANTZ AMERICA. INc, LENBROOK INDUSTRIES LIMITED MARANTZ EUROPE B.v.
440 MEDINAH ROAD e33 GRANITE COURT, POBOX 80002
ROSELLE. ILLINOlS 50172.2330 PICKERING, ONTARIO L1W 3K1 BUILDING SFFZ
USA CANADA 5600 JB ElNDHOVEN
PHONE ; 530 . 307 . 3100 PHONE : 416 » 831 - 5333 THE NETHERLANDS
FAx ; 530 . 307 . 2537 FAX :415 - 531 - 6936 PHONE : +31 - 40 - 2732241
FAX +31 - 40 » 2735578 7
- Pkaftltlnflfll USA - - PROFESSIONAL CANADA - TRADING
SUPERSCOPE TECHNOLOGIES, INC. Tc ELECTRONICS CANADA LTD MARANTZ EUROPE B.V.
MARANTZ PROFESSIONAL PRODUCTS 54o FIRING AVE. P.O.BOX 30002
1000 CORPORATE BLVD., SUITE D BAIE D'URFE, QUEBEC H9X 3T2 BUILDING SFF2
AURORA, ILLINOIS 60504 USA CANADA 5600 JB EINDHOVEN
PHONE: 630 - 820 . 4800 PHONE : 514 - 457 - 4044 THE NETHERLANDS
FAX : 630 - 820 A 3103 FAX : 514 - 457 A 5524 PHONE : +31 - 40- 2732241
FAX : +31 - 40 - 2735578
-- BFMZIL - - THAILAND - - HONG KONG
MARANTZ BRAZIL MR2 STANDARD co,.LTD FORWARD INTERNATIONA CORP. LTD.
Caixa Postal 21462 745 - 750 WANGBURAPA BANGKOK 15 TH FLOOR, REGENT CENTRE,
CEP 04698-970 10200 THAILAND as QUEENS ROAD, CENTRAL, H. K,
sao Paulo. SP, BRAZIL PHONE : +66 2222 9181 PHONE : +852 521 v 0883
PHONE ; 0800 - 123123ipiscagem Direta Gratuita FAX ; +66 2225 8871 FAX : +852 521 » 7835
FAX : +55 11 534. 3933
- TAIWAN - - MALAYSIA
PAI- YUING 00,, LTD. W0 KEE HONG ELECTRONICS SDN. BHD.
0 TH FL NO, 148 SUNG KIANG ROAD, NO. 102 JALAN SS 21/35, DAMANSARA
TAIPEI, 10429, TAIWAN no 0. UTAMA. 47400 PETALING JAYA
PHONE : +886 (2) 5221304 - a SELANGOR DARUL EHSAN,
FAX : +886 (2) 5630415 MA LAYS IA
PHONE: +60 3 . 7104556
FAX :+50 3 - 7173828
JAPAN Technical - SINGAPORE -_-
MARANTZ JAPAN INC. [3 7i: 7 5 x 7 Pk it a ti FORWARD MARKETING (SINGAPORE) PTE. LTD.
35-1.? chome, Sagamino 4i *1 T 228 29, LENG KEE ROAD
Sagamihara - shI, Kanagawa , SINGAPORE 159099,
Japan M Vffii * 'Eggfififitfifli 735 PHONE : +65 475 - 4555
PHONE: +81 427 44 7950 5&4de 1- 150 FAX :+55 475 - 8623
FAX :+81 427 4a 0889 enmesazartse 1.11.9
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 as difficulties, do not hesitate to contact the Technical
Department at above mentioned address,

970508 A.()