Marantz CD 7 Service Manual

Page 1

Service 74 CD7 /ozG

CD-7 FN KGL

Manual Compact disc player

COMPACT

wage

DIGITAL AUDIO

TABLE OF CONTENTS

SECTION
1. TECHNICAL SPECIFICATIONS ..
SERVICING HINTS .......................
SERVICINE TOOLS.
SERVICE MODE .......
MICROPROCESSOR AND IC DATA.
WIRING DIAGRAM ...............................
BLOCK DIAGRAM
FLAG NO..
9. SCHEMATIC DIAGRAM AND PARTS LOCATIONS.
10. EXPLODED VIEW AND MECHANISM PARTS LIST.
11. TRAY MECHANISM ADJUSTMENTS ..........................
12. BALANCED JACKS ..
13. DIGITAL FILTER .......
14. EXPLANATION OF DSP ........
15. ELECTRICAL PARTS LIST

9°.\'.09:"9!"

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

4822 725 51186

model CD-7

Printed in Japan 355K855010 MIT

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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.

-USA - -CANADA - -EUROPE ITRADING
MARANTZ AMERICA, INC. LENBROOK INDUSTRIES LIMITED MARANTz EUROPE B.v.
440 MEDINAH ROAD 633 GRANITE COURT, F'.O.BOX 30002
ROSELLE, ILLINOIS 60172 PICKERING, ONTARIO L1W 3K1 BUILDING SFF2
USA CANADA 5600 JB EINDHOVEN
PHONE : 650 » 507 . 9100 PHONE : 905 . 391 . 6333 THE NETHERLANDS
FAX : 650 . 507 . 2637 FAX : 905 . s51 . 6936 PHONE : +31 . 40 . 2752241
FAX : +91 . 40 . 2755573
-PHOFES$IONAL USA - -PI'0FES$IONAL CANADA - KOREA
SUPERSCOPE TECHNOLOGIES, INc. TC ELECTRONICS CANADA LTD. MK ENTERPRISES LTD.
MARANTz PROFESSIONAL PRODUCTS 540 FIRING AVE. 2F SHINHAN BLDG., 247717 SEOKYOVDONG
2640 WHITE OAK CIRCLE, SUITE A BAIE D'URFE, QUEBEC H9X 3T2 MAPOVKU, SEOUL
AURORA, ILLINOIS 60504 USA CANADA KOREA
PHONE : 650 . 320 . 4300 PHONE : 514 . 457 . 4044 PHONE : +32 . 2 . 923 . 2155
FAX :630782078103 FAX :514745775524 FAX 33272752372154
-BRAZ|L - -THA|LAND
MARANTz BRAZIL MRz STANDARD CO., LTD.
CAIXA POSTAL 21462 746 . 754 MAHACHAI RD.,
CEP 046987970 WANGBURAPAPIROM, PHRANAKORN,
SAO PAULO, SP, BRAZIL BANGKOK, 10200 THAILAND
PHONE : 0800 . 123123(Discagem Direta Gratuita) PHONE : +66 . 2 . 222 . 9131
FAX :+5511 554. 8988 FAX : +66 . 2 . 224 . 6795
- AUSTRALIA / NEW ZEALAND - TAIWAN - ' MALAYSIA
SCAN AUDIO PTY. LTD. PAI-VUING co., LTD. wo KEE HONG ELECTRONICS SDN. BHD.
52 CROWN STREET, RICHMOND 5121 6 TH FL NO, 143 SUNG KIANG ROAD, NO. 102 .IALAN SS 21/55, DAMANSARA
VICTORIA TAIPEI, 10429, TAIWAN R.O.C. UTAMA, 47400 PETALING JAYA
AUSTRALIA PHONE : +336 (2) 5221304 SELANGOR DARUL EHSAN,
PHONE : +61 . 3 . 9429 . 2199 FAX :+886 (2) 5630415 MALAYSIA
FAX :+61 79794299309 PHONE : 60377184666
FAX : +60 9 . 7173323
-JAPAN Technical - SINGAPORE
MARANTZ JAPAN, INC. I] [I l] I] [I l] I] [I l] I] FORWARD MARKETING (S) PTE. LTD.
957 I , 7. CHOME, SAGAMIONO 25, LORONG 3, TOA PAYOH,
SAGAMIHARA . SHI, KANAGAWA D [I D 22878505 SINGAPORE 519257.
JAPAN 2288505 U a D [I D n [1 u D u D g 7 . 55 .1 PHONE : +65 2533640
PHONE : +31 42 74s 1019 D u D l] D 15070022 FAX :+65 3564047
FAX :+31427469190 DDDDRDDDDDLHB

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.

981110MIT