Marantz SR 680 Service Manual

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serVice SR680 U,K,KS
M a nu al I, 'N " AudioNideDBGcei'x/Gr

TABLE OF CONTENTS

SECTION
1. TECHNICAL SPECIFICATIONS ........... , .................................. , ...........................
2 WIRING DIAGRAM .................... .. .................. , .............................. ........... ,.
3. BLOCK DIAGRAM.............., ....... L .....

. 4. SCHEMATIC DIAGRAM AND PARTS LOCATION (Pattern Side)
510 DATA ......
6 EXPLODED ViEW AND PARTS LIST'
7. SERVICE PRQGRAM ........... .....
8. ELECTRICAL ADJUSTMENTS
9. TECHNICAL DESCRIPTION ...' ....... ,

10. STGNAL AND CIRCUIT DESCRIPTION.

ELECTRICAL PARTSLIST....,............'.._, ..... . ......... ,

Please use this service manual wiTh referring To the user guide (DTF.U) without fail.

model SR680

First Issue 19973
287J85501O ACT

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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 inlormation 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 ls 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 _ 7 EUROPE
MARANIL AMERICA. INc. _ , LENBROOK INDUSTRIES LIMITED MARANTZ EUROPE 3 v. _;
440 MEDINAH ROAD -_ , ,, sas GRANITE COURT. _ _ , Po Box 80002 ,
ROSELLE. ILLINOIS 60172 2330 , PICKERING. ONTARIO Ltw 3K1 _, , , BUILDINGSFFZ
USA , OANAOA 5600 JB EINDHOVEN
PHONE :520 A 307 - 3100 PHONE :4164331-8333 THE NETHERLANDS
FAX :sao - 307 ~ 2687 FAX :416-831-6936 PHONE : +31 - a0 ~ 273224:
FAX : +51 - 4o - 2735578
- PROFESSIUNAL USA w - PROFESSIONAL CANADA -TRADING
SUPERSCOPETECHNOLOGIES, INC. TC ELECTRONICS CANADA LTD MARANTZ EUROPE 8N. :
MARANTZ PROFESSIONAL PRODUCTS 540 FIRING AVE. Foaox 50002 ;
moo CORPORATE BLVD.. SUITE D BAIE DURFE. QUEBEC st 3T2 BUILDING SFF2 I
AURORA, ILLINOIS 50504 USA CANADA 5600 JB EINDI-IOVEN
PHONE: 630 » 820 ~ 4500 PHONE : 514 - 457 . 4044 THE NETHERLANDS
FAX 1630 ~ 521) - 8103 FAX :51»: - 457 - 5524 PHONE :+31 -zva - 2732241
FAX :531 - 40 - 2735578
-BRAZIL -THAILAND ~HONG KONG-m
MARANIZ BRAZIL MFIz STANDARD (20,, LTD, FORWARD INTERNAHONAL CORRLTD.
Caixa Postal 21462 746 . 750 WANGBURAPA BANGKOK , 15 TH FLOOR, REGENT CENTRE,
CEP 04698'970 10200 THAILAND I so QUEENS ROAD. CENTRAL. H: K. ,;
Sao Paulo, SEERAZIL PHONE : +66 2222 9131 PHONE : +852 52s - 0583 1
PHONE : 01300 - 123123(Discagem Direta Gratuira) FAX yes 2225 8871 FAX :+852 521 . 7835
FAX :+55 11 534 8988
TAIWAN .. MALAYSIA
PAI-YUING oo,, LTD wo KEE HONG ELECTRONICS SDN. 8H0;
6 TH FL NO 145 SUNG KIANG ROAD NO. I 02 JALAN ss 21/35. DAMANSARA
TAIPEI 10429, TAIWAN R o c , ' ' UTAMA, 47400 PETALING JAYA '
PHONE: +886 (2) 52213011 3 SELANGOR DARUL EHSAN, ;
FAX :+586 (2) 5630415 MA LAYS IA j
PHONE ;+60 3 - 7184666
FAx' :1603¢ 7173828
JAPAN Technical ' ' ' i I- SINGAPORE
MARANTZ JAPAN IMO. E 1i: V 7 1/ J 135 it 1? iii FORWARD MARKETING (SINGAPORE) PTE. LTD. 2 .5
35» l , 7- chemo. Sagamlono 29. LENG KEE ROAD
Sagamihara - shi Kanagawa 25 if T 228 SINGAPORE l 59099,
Japan maritifiétfilfilfiifilalaxsi 7 ~ as - 1 . PHONE :+65 475 ~ 4555
PHONE: +81 427 44 7950 2331mm T 150 ' FAX ;+65 475 ~ 8623
FAX :+e1427 48 0889 Reaseeaemare 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 conneclo, pins (with Unit NOT ' ' ' and its POWE" witch ON ), and the face Or Fron Panel of product and
controls and chassis botto , , - , , , ~ ,,
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

Fleir UL Standard NO. 1492.

In case of dillicUIties, donor he'sItaIé [to contact the Technical
Department at above mentioned address.