Marantz ST-4000 Service Manual

Service

ST4000/N1B

Manual

Tuner

TABLE OF CONTENTS

1. TECHNICAL SPECIFICATIONS .............................................................................1

2. WIRING DIAGRAM.................................................................................................2

3. BLOCK DIAGRAM ..................................................................................................3

4. SCHEMATIC DIAGRAM AND PARTS LOCATION .................................................5

5. MICROPROCESSOR AND IC DATA ....................................................................11

6. ADJUSTMENT PROCEDURE ..............................................................................13

7. EXPLODED VIEW AND PARTS LIST...................................................................16

8. ELECTRICAL PARTS LIST...................................................................................17

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

ST4000

R

Printed in Japan

- ST4000 -

281W855010 AO
3120 785 22013
First Issue:1999.08

MARANTZ DESIGN AND SERVICE

Using superior design and selected high grade components, MARANTZ company has created the ultimate in stereo sound.
Only original
it is famous.
Parts for your

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, otherwise such part order will be considered as null and void.

MARANTZ parts can insure that your MARANTZ product will continue to perform to the specifications for which

MARANTZ equipment are generally available to our National Marantz Subsidiary or Agent.

USA

MARANTZ AMERICA, INCMARANTZ AMERICA, INC.
440 MEDINAH ROAD
ROSELLE, ILLINOIS 60172
USA
PHONE : 630 - 307 - 3100
FAX : 630 - 307 - 2687

SUPERSCOPE TECHNOLOGIES, INC.
MARANTZ PROFESSIONAL PRODUCTS
2640 WHITE OAK CIRCLE, SUITE A
AURORA, ILLINOIS 60504 USA
PHONE : 630 - 820 - 4800
FAX : 630 - 820 - 8103

AMERICAS

AUSTRALIA

JAMO AUSTRALIA PTY LTD
1 EXPO COURT, P.O. BOX 350
MT. WAVERLEY VIC 3149
AUSTRALIA
PHONE : +61 - 3 - 9543 - 1522
FAX : +61 - 3 - 9543 - 3677

EUROPE / TRADING

MARANTZ EUROPE B.V.
P.O.BOX 80002, BUILDING SFF2
5600 JB EINDHOVEN
THE NETHERLANDS
PHONE : +31 - 40 - 2732241
FAX : +31 - 40 - 2735578

CANADA

LENBROOK INDUSTRIES LIMITED
633 GRANITE COURT,
PICKERING, ONTARIO L1W 3K1
CANADA
PHONE : 905 - 831 - 6333
FAX : 905 - 831 - 6936

THAILAND

MRZ STANDARD CO.,LTD
746 - 754 MAHACHAI ROAD.,
WANGBURAPAPIROM, PHRANAKORN,
BANGKOK, 10200 THAILAND
PHONE : +66 - 2 - 222 9181
FAX : +66 - 2 - 224 6795

TAIWAN

PAI- YUING CO., LTD.
6 TH FL NO, 148 SUNG KIANG ROAD,
TAIPEI, 10429, TAIWAN R.O.C.
PHONE : +886 - 2 - 25221304
FAX : +886 - 2 - 25630415

BRAZIL

MARANTZ BRAZIL
CAIXA POSTAL 21462
CEP 04698-970
SAO PAULO, SP, BRAZIL
PHONE : 0800 - 123123
FAX : [phone]

(Discagem Direta Gratuita)

SINGAPORE

WO KEE HONG (S) PTE LTD
WO KEE HONG CENTRE
NO.23, LORONG 8, TOA PAYOH
SINGAPORE 319257
PHONE : [phone]
FAX : [phone]

MALAYSIA

WO KEE HONG ELECTRONICS SDN. BHD.
NO. 102 JALAN SS 21/35, DAMANSARA
UTAMA, 47400 PETALING JAYA
SELANGOR DARUL EHSAN, MALAYSIA
PHONE : +60 3 - 7184666
FAX : +60 3 - 7173828

JAPAN

MARANTZ JAPAN, INC.

Technical

35- 1, 7- CHOME, SAGAMIONO
SAGAMIHARA - SHI, KANAGAWA
JAPAN 228-8505
PHONE : [phone]
FAX : [phone]

KOREA

MK ENTERPRISES LTD.
ROOM 604/605, ELECTRO-OFFICETEL, 16-58,
3GA, HANGANG-RO, YONGSAN-KU, SEOUL
KOREA
PHONE : +822 - 3232 - 155
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.

990729A.O

1. TECHNICAL SPECIFICATIONS

FM Section

Tuning Range.....................................................................................................................................87.5 MHz - 108.0 MHz

Usable Sensitivity (IHF) Mono .................................................................................................................................... 10 dBf

50 dB Quieting sensitivity

Mono ................................................................................................................................................................. 17 dBf

Stereo................................................................................................................................................................ 33 dBf

Alternate Channel Selectivity (98 MHz 400 kHz) ...................................................................................................... 65 dB

Image Response Ratio ................................................................................................................................................ 60 dB

Frequency Response ............................................................................................................. 20 Hz - 15 kHz, +0.5 dB/-3 dB

Capture Ratio ................................................................................................................................................... 2 (at 98 MHz)

Distortion (at 65 dBf, 98 MHz)

Mono ...................................................................................................................................................................0.2 %

Stereo..................................................................................................................................................................0.3 %

Signal-to-Noise Ratio (at 65 dBf, 1 kHz)

Mono .................................................................................................................................................................. 70 dB

Stereo................................................................................................................................................................. 65 dB

AM Suppression Ratio ................................................................................................................................................. 80 dB

Stereo Separation (1 kHz) ........................................................................................................................................... 40 dB

Output (Level/Impedance) ........................................................................................................................600 mV/2.2 k ohm

AM Section

Tuning Range.................................................................................................................. 522 kHz - 1,620 kHz (9 kHz steps)

Usable Sensitivity (IHF)................................................................................................. 55 dB/m (562 V/m, Loop Antenna)

Selectivity ..................................................................................................................................................30 dB (at 9 kHz)

Image Response Ratio ................................................................................................................................................ 35 dB

IF Response Ratio ....................................................................................................................................................... 60 dB

Distortion .....................................................................................................................................................1 % (at 85 dB/m)

Signal-to-Noise Ratio ...............................................................................................................................50 dB (at 94 dB/m)

Output (Level/Impedance) ........................................................................................................................170 mV/2.2 k ohm

General

Power Requirements ................................................................................................................................... 230V AC, 50 Hz

Power Consumption........................................................................................................................................................ 6 W

MAX Dimensions (W x H x D) ................................................................................................................. 440 x 86 x 290 mm

Weight (net).................................................................................................................................................................. 3.0 kg

Accessories
AM Loop Antenna x 1, FM Antenna x 1
PCA pin plug cord x 1, Remote control Cable x 1

Improvements may result in specifications and features changing without notice.

1

2. WIRING DIAGRAM

RDS-CK
RDS-DR
CE
DI
CK

PLL

DO
ST-IN
TUNED
RESET
GND

5.6V
AM

POWER
GND
REMOTE
FL2
VFIP
FL1

2

3. BLOCK DIAGRAM

3

4