MARANTZ SD4050 Service Manual

Cover page of MARANTZ SD4050 Service Manual

Service Manual for MARANTZ SD4050, downloadable as a PDF file.

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Service
Manual
Please use this service manual with referring to the user guide (D.F.U) without fail.
286W855010 AO
3120 785 22012
First Issue:1999.08
SD4050 /N1B, /U1B, /F1B
Cassette Deck
- SD4050 -
TABLE OF CONTENTS
1.
TECHNICAL SPECIFICATION ............................................................................... 1
2.
BLOCK DIAGRAM .................................................................................................. 2
3.
WIRING DIAGRAM ................................................................................................. 3
4.
ADJUSTMENT PROCEDURE ................................................................................ 5
5.
SCHEMATIC DIAGRAM AND PARTS LOCATION ............................................... 10
6.
MICROPROCESSOR AND IC DATA .................................................................... 17
7.
EXPLODED VIEW AND PARTS LIST ................................................................... 19
8.
ELECTRICAL PARTS LIST ................................................................................... 22
Printed in Japan
SD4050
background image
Service
Manual
Please use this service manual with referring to the user guide (D.F.U) without fail.
286W855010 AO
3120 785 22012
First Issue:1999.08
SD4050 /N1B, /U1B, /F1B
Cassette Deck
- SD4050 -
TABLE OF CONTENTS
1.
TECHNICAL SPECIFICATION ............................................................................... 1
2.
BLOCK DIAGRAM .................................................................................................. 2
3.
WIRING DIAGRAM ................................................................................................. 3
4.
ADJUSTMENT PROCEDURE ................................................................................ 5
5.
SCHEMATIC DIAGRAM AND PARTS LOCATION ............................................... 10
6.
MICROPROCESSOR AND IC DATA .................................................................... 17
7.
EXPLODED VIEW AND PARTS LIST ................................................................... 19
8.
ELECTRICAL PARTS LIST ................................................................................... 22
Printed in Japan
SD4050
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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, otherwise such part order will be considered as null and void.
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
USA
MARANTZ AMERICA, INC
MARANTZ AMERICA, INC.
440 MEDINAH ROAD
ROSELLE, ILLINOIS 60172
USA
PHONE : 630 - 307 - 3100
FAX
: 630 - 307 - 2687
BRAZIL
MARANTZ BRAZIL
CAIXA POSTAL 21462
CEP 04698-970
SAO PAULO, SP, BRAZIL
PHONE : 0800 - 123123(Discagem Direta Gratuita)
FAX
: +55 11 534. 8988
JAPAN Technical
MARANTZ JAPAN, INC.
35- 1, 7- CHOME, SAGAMIONO
SAGAMIHARA - SHI, KANAGAWA
JAPAN 228-8505
PHONE : +81 42 748 1013
FAX
: +81 42 748 9190
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
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
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
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
AMERICAS
SUPERSCOPE TECHNOLOGIES, INC.
MARANTZ PROFESSIONAL PRODUCTS
2640 WHITE OAK CIRCLE, SUITE A
AURORA, ILLINOIS 60504 USA
PHONE : 630 - 820 - 4800
FAX
: 630 - 820 - 8103
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
SINGAPORE
WO KEE HONG (S) PTE LTD
WO KEE HONG CENTRE
NO.23, LORONG 8, TOA PAYOH
SINGAPORE 319257
PHONE : +65 2544555
FAX
: +65 2502213
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1. TECHNICAL SPECIFICATION
1
Track System :
4-track, 2-channel stereo
Heads :
Deck I ; 1 Playback (Rotating)
Deck II ; 1 Erase and 1 Record/
Playback (Rotating)
Type of Tape :
Cassette tape C-60 and C-90 (Philips
type)
Tape Speeds :
4.8 cm/sec, 4.9 cm/sec (When high
speed dubbing)
Motors :
DC servo motor x 2
Wow and Flutter :
0.09 % RMS, +/- 0.1 %w. peak
Frequency response (Overall, -20 dB) :
25-18,000Hz +/- 3 dB (at -20 dB, metal
tape)
Signal-to-Noise Ratio (Overall) :
More than 74 dB (CCIR/ARM); Dolby
C NR on
Fast Winding Time : Appopox. 110sec with a C60 cassette
Inputs :
100 mV/50k ohm input level at
maximum
Outputs :
460 mV/47k ohm maximum
(0 dB : 200 nWb/mm)
Power Requirements :
120 V AC, 60 Hz
(U.S.A./Canada model)
230 V AC, 50 Hz (Europe model)
Power Consumption :
0.16 A
Dimensions (W x H x D) :
440 x 124 x 286 m/m (W x H x D)
Weight :
4.0 kg
Standard Accessories :
Remote control unit (RC455SD) x 1
(U.S.A. /Canada model only), Battery
(SUM-3, "AA", "R6" type) x 2 (U.S.A. /
Canada model only),
Input-output connection cord x 1
Remote control cable x 1
Recording Bias :
Apporox. 100 kHz
Channel Separation :More than 40 dB (at 1 kHz)
Phones :
0.95 mW (load impedance 8 ohm to
1.2k ohm)
Improvements may result in specification or feature chang-
ing without notice.
Dolby noise reduction and HX Pro headroom extension
manufactured under license from Dolby Laboratories
Licensing Corporation. HX Pro originated by Bang &
Olufsen.
"DOLBY", the double-D symbol
and "HX PRO" are
trademarks of Dolby Laboratories Licensing
Corporation.
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PB
AMP
DECK
A
PLAY
HEAD
PB
EQ
METER
AMP
FL
DISPLAY
OUTPUT
CPS
PB
AMP
HI
SPEED
DECK
B
R/P
HEAD
REC
PLAY
PB
EQ
DOLBY
NR
B,C
PHONES
AMP
PHONES
INPUT
REC
AMP
REC
EQ
+V
BIAS
ADJ.
HX
PRO
E
HEAD
BIAS
OSC
-V
2
2. BLOCK DIAGRAM
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3. WIRING DIAGRAM
+-
AB
MECH I
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
J319
PCB CONTROL
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
J307
1
2
3
4
5
6
7
8
9
10
11
12
P307
PCB MAIN
DECK I
R
PLAY HEAD
1
2
3
1
2
3
L
PLAY HEAD
1
2
3
P301
470
PLAY
SOL
+-
AB
CrO2
TAPE
MECH II
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
J308
1
2
3
4
5
6
7
8
9
P308
1
2
3
4
5
P302
1
2
3
4
5
6
1
2
3
4
5
6
L
R/P HEAD
DECK II
E HEAD
R
R/P HEAD
1
2
P303
1
2
3
4
5
6
1
2
3
4
5
6
J311
1
2
3
4
5
6
P309
1
2
3
J503
1
2
3
1
2
3
P503
470
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
3
4
5
6
7
8
9
10
11
12
13
J320
PLAY
SOL
TAPE
METAL
CrO2
F.REC
R.REC
1
2
1
2
P318
PCB VR
1
2
3
1
2
3
P306
1
2
3
J306
PCB PHONE
12345
P304
1
2
3
1
2
3
P305
1
2
3
4
5
J401
PCB TRANS B
PCB REMOTE
1
2
1
2
P504
1
2
J504
1
2
3
4
5
6
P501
1
2
3
4
5
6
J501
12345
12345
J304
PCB SLIDE
PCB KEY
3
4

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