Marantz DP 870 Service Manual

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S@?VEC% 74 DP870/023

DP870 KBL, KGL, FBL, UBL

manua! Digital Processor

TABLE OF CONTENTS

SECTION PAGE
1. TECHNICAL SPECIFICATIONS .................................................................................................................. 1
2. TECHNICAL DESCRIPTION ....................

3. SIGNAL AND CIRCUIT DESCRIPTION
4. BLOCK DIAGRAM ................. I ..................
5. SCHEMATIC DIAGRAM AND PARTS LOCATION (Pattern Side)
6. Ic BLOCK DIAGRAMS
7. EXPLODED VIEW AND PARTS LIST
3. ELECTRICAL PARTS LIST .............................................................................................................

Please use This service manual with referring to the user guide (D.F.U) wiIhou! fail.

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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 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 fon'n or Fax. must be signed. otherwise such part order will be considered as null and void.

FUSA -_ CANADA -"_" -EUROPE
MARANI'Z AMERICA, INC. LENIROOK INDUSTRIES LIII'TED IARANI'Z EUROPE I. .
440 MEDINAH ROAD 633 GRANITE COURT, p,o,aox 30092
ROSELLE. ILLINOIS 60172- 2330 PICKERING, ONTARIO L1W 3K1 BUILDING SFF2
USA CANADA 5600 JB EINDHOVEN
PHONE :630 - 307 < 3100 PHONE : 415-831-8333 THE NETHERLANDS
FAX : 830 . 307 - 2687 FAX : 416-831 £936 PHONE : +31 . 4a . 2732241
FAX : +31 - 4O - 2735578
- P'UFEJ'IONAL USA - - PRUFESSIDNIL CANADA TRADING
SUPERSCOPE TECHNOLOGIES, INC. TC ELECTRONICS CANADA LTD HARANTZ EUROPE B,V.
MARANTZ PROFESSIONAL PRODUCTS 540 FIRING AVE P.0.BOX 80002
1000 CORPORATE BLVD. SUITE D BAIE DURFE, QUEBEC HBX 3T2 BUILDING SFFZ
AURORA, ILLINOIS 50504 USA CANADA 5500 JB EINDHOVEN
PHONE 1630 - 820 - 4900 PHONE : 54 - 457 - 4044 THE NETHERLANDS
FAX : 630 - 820 - 8103 FAX :514 ~ 457 - 5524 PHONE : +31 - 40 - 2732241
FAX : +31 , 40 - 2735578

-AUSTRALIA - -BRAZIL "- HONG KONG
HARANTZ AUSTRALIA MARANTZ BRAZIL FORWARD INTERNATIONAL CORELTD-
3 Figtree Drive Caixa Postal 21462 15 TH FLOOR, REGENT CENTRE,
Australia Centre CEP 04698-970 BB QUEEN'S ROAD, CENTRAL, H. K,
Homebush, NSW2140 AUSTRALIA Sao Paulo. SP, BRAZIL PHONE : +852 521 - 0883
PHONE : +61 2 742 8311 PHONE : 0600 - 123123 (Discagem Ditch Gratuita FAX : +852 521 - 7835
FAX 2 '61 2 764 3074 FAX : +55 11 534. 8988
TAIWAN - THAILAND - MALAYSIA
PAI- YUING CO" LTD. MR2 STANDARD CO" LTD. W0 KEE HONG ELECTRONICS SDN. BHD-
6 TH FL NO. 148 SUNG KIANG ROAD, 745 - 750 WANGBURAPA BANGKOK NO. I02 JALAN SS 21/35. DAMANSARA
TAIPEI. 10429. TAIWAN R.O.C. 10200 THAILAND UTAMA. 47400 PETALING JAYA
PHONE #886 (2) 5221304 - 8 PHONE I 55 2222 9131 SELANGOR DARUL EHSAN.
FAX 2 +386 (2) 5630415 FAX Z #66 2225 8871 MA LAYS IA
PHONE : #60 3 - 7134666
FAX : +60 3 - 7173828

l-JAFAN Technical SINGAPORE
mm: Jnm me. El 1: 7 5 2 J 1* it 2: #1 FORWARD MARKETING (SINGAPORE) "a. LTD.
35- l , 7- chome, sagamicno 29, LENG KEE ROAD
Sagamihara - shi. Kanagawa * ti T228 SINGAPORE I 59099.
Japan «multimillionaire; 7 - as - 1 PHONE : +65 475 - 555
PHONE : +81 427 44 7950 Intel! $150 FAX :+65 415 - 3523
FAX :+e1 427 4a 0339 nineteenth: 1 - 11 < 9

SHOCK, FIRE HAZARD SERVICE TEST:

CAUTION : After servicing this appliance and prior to reluming 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.

9702mm
PCS 88 447