Marantz SR 18 EX Service Manual

Page 1

se rVice SR14A /N1G,/S1G,/U1G,/U1B

SR18A /K1G, /S1G, /U1G, /U1B

SR17A /F1N
Ma n U al AV Surround Receiver

TABLE OF CONTENTS

SECTION PAGE
1. TECHNICAL SPECIFICATIONS ................................................................................................................. 1 1
2. WIRING DIAGRAM .. 3 'T 7
a. BLOCK DIAGRAM .....
4. SCHEMATIC DIAGRAM
5. PARTS LOCATION (Pattern Side) ............................................................................................................ 31
6. IC DATA ............................................... 51
7. EXPLODED VIEW AND PARTS LIST.. . 61
a. SERVICE PROGRAM .......................... 67
9. ELECTRICAL ADJUSTMENTS ................................................................................................................. 69

10. ALIGNMENT PROCEDURES
11. TROUBLE SHOOTING . 73
12. TECHNICAL DESCRIPTION FOR DECODER .. 76
13. ELECTRICAL PARTS LIST ....................................................................................................................... 78

71

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

maranll®

SR-14EX/SR-14mkll
SR-17EX/SR-18EX 3238332132223

Printed in Japan First Issue 2000.12

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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 form or Fax. must be signed, othenNise such part order will be considered as null and void.

7 USA - 7 EUROPE/TRADING - 7 BRAZIL -
MARANTZ AMERICA. INc. MARANTz EUROPE a.v. PHILIPS DA AMAz0NIA IND. ELET. ITDA
440 MEDINAH ROAD P.O.BOX 80002, BUILDING SFF2 CENTRO DE INFORMACOES AO
ROSELLE, ILLINOIS 60172 5600 JB EINDHOVEN CEP 04698-970
USA THE NETHERLANDS SAO PAULO, SP, BRAZIL
PHONE : 630 - 307 7 3100 PHONE : +31 - 40 - 2732241 PHONE : 0800 - 123123(Discagem Direla Gratuila)
FAX : 630 7 307 - 2687 FAX : +31 - 40 - 2735578 FAX : +55 11 534. 8988

- PIMIFESSIWIIAL AMERICAS - T PnflfESS/UNAL AUSTRALIA 7 T CANADA
SUPERSCOPE TECHNOLOGIES, INc. TECHNICAL AUDIo GROUP PTY, LTD LENBROOK INDUSTRIES LIMITED
MARANTZ PROFESSIONAL PRODUCTS 558 DARLING STREET, 633 GRANITE COURT,

2640 WHITE OAK CIRCLE, SUITE A BALMAIN, NSW 2041, PICKERING, ONTARIO L1W 3K1
AURORA, ILLINOIS 60504 USA AUSTRALIA CANADA

PHONE : 630 7 820 - 4800 PHONE : 61 - 2 - 9810 - 5300 PHONE : 905 7 831 - 6333

FAX : 630 7 820 - 8103 FAX :61 - 2 7 9810 7 5355 FAX : 905 - 831 7 6936

7 AUSTRALIA - 7 THAILAND - 7 SINGAPORE -
OuaIIFI PIy le. MRZ STANDARD co.,LTD wo KEE HONG DISTRIBUTION PTE LTD
24 LIONEL ROAD, 746 - 754 MAHACHAI ROAD., 130 JOO SENG ROAD

MT. WAVERLEY VIC 3149 WANGBURAPAPIROM, PHRANAKORN, #03-02 OLIVINE BUILDING
AUSTRALIA BANGKOK, 10200 THAILAND SINGAPORE 368357

PHONE : +61 - (0)3 - 9543 - 1522 PHONE : +66 7 2 - 222 9181 PHONE : +65 858 5535/+65 381 8621
FAX : +61 7 (0)3 7 9543 - 3677 FAX : +66 7 2 7 224 6795 FAX : +65 858 6078

7 NEW ZEALAND - 7 TAIWAN - 7 MALAYSIA

WILDASH AUDIo SYSTEMS Nz PAI- YUING co., LTD. wo KEE HONG ELEcTRONIcs SDN. BHD.

14 MALVERN ROAD MT ALBERT 6 TH FL NO, 148 SUNG KIANG ROAD, SUITE 8.1, LEVEL 8, MENARA GENESIS,
AUCKLAND NEW ZEALAND TAIPEI, 10429, TAIWAN R.O.C. NO. 33, JALAN SULTAN ISMAIL,
PHONE : +64 7 9 7 8451958 PHONE : +886 7 2 7 25221304 50250 KUALA LUMPUR, MALAYSIA
FAX : +64 7 9 7 8463554 FAX : +886 7 2 7 25630415 PHONE : +60 3 7 2457677
FAX : +60 3 - 2458180

- JAPAN Technical 7 KOREA
MARANTZ JAPAN. INc. E] 25 V 5 y 3 fit ifi 2 $1 MK ENTERPRISES LTD.

35- 1, 7- CHOME, SAGAMIONO ROOM 604/605, ELECTRO-OFFICEI'EL, 16-58,
SAGAMIHAFIA - SHI, KANAGAWA 3K 11 T22878505 313A, HANGANG-RO, YONGSAN-KU, SEOUL
JAPAN 22878505 1$§J l IQTEEEETEEKEWISSR KOREA

PHONE : +81 42 7481013 Sixafi T15070022 PHONE : +322 _ 3232 _155

FAX 3.31 42 741 9190 i, \ fi§8§tb§§14 1-9 FAX :+822 _ 3232 _154

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.

001120MIT