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
Page 2
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.
SUPERSCOPE TECHNOLOGIES, INC.
MARANTZ PROFESSIONAL PRODUCTS
2640 WHITE OAK CIRCLE, SUITE A
AURORA, ILLINOIS 60504 USA
PHONE : 630 - 820 - 4800
FAX : 630 - 820 - 8103
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.
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)
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
Selectivity ..................................................................................................................................................30 dB (at 9 kHz)
Image Response Ratio ................................................................................................................................................ 35 dB
IF Response Ratio ....................................................................................................................................................... 60 dB
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
Page 4
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
Page 5
3. BLOCK DIAGRAM
3
4
Page 6
4. SCHEMATIC DIAGRAMS AND PARTS LOCATIONS
56
Page 7
78
Page 8
Q702
Q701
Q703
Q704
Q307
Q304
Q308
Q303
IC81
Q305
IC31
Q306
Q301
Q503 Q504IC11Q502
Q501
Q102
IC51
Q101
Q511
Q512
Q905Q902 Q901 Q903IC91
9
Q906
Q908 Q907
10
Page 9
5. MICROPROCESSOR AND IC DATA
1. Block Diagram
IC51 : BVILC7218 (LC7218)
PIN NO.IN/OUTMARKDESCRIPTION OF TERMINAL
1INPUTXINConnecting terminal f or crystal oscillator(7.2MHz)
2INPUTCEChip enable terminal for seri al data input/output.
3INPUTDIData input terminal f or control
4INPUTCLClock input terminal for control
5OUTPUTDOData output terminal for control
6INPUTSYSNot used in this unit. ( 0 V )
7INPUTIN0Control input for data format
8INPUTIN1
9OUTPUTOUT0Not used in this unit.
10OUTPUTOUT1MUTE ON: "H" , MUTE OFF: "L"
11OUTPUTOUT2FM : "H" , AM : "L"
12OUTPUTOUT3Not used in this unit.
13OUTPUTOUT4STEREO : "L" , MONO : "H"
14OUTPUTOUT5Signal indicator driver
15INPUTLCTRInput terminal for IF detector
16INPUTHCTR
17OUTPUTOUT6Output terminal for IF detector
18INPUTAM INInput for AM OSC output
19INPUTFM INInput for FM OSC output
20INPUTVDDPower supply terminal
21OUTPUTPD1Output terminal for PLL charge pump.
22OUTPUTPD2Not us ed i n this unit.
23-VSSGround terminal
24OUTPUTXOUTConnecting terminal for c rystal oscillator(7.2MHz)
IC91 : ANAM 1239T
PIN NO.SYMBOLIN/OUTDESCRIPTION
1VCCIVDD CONNECTION
2~5KEY OUTOKEY MATRIX OUTPUT
6~10N.CNO CONNECTION
11RDS DA T AIRDS DATA INPUT
12N.CNO CONNECTION
13RDS CKIRDS CLOCK INPUT
34RMC-OUTOREMOCON DATA OUTPUT
35,36RMC-INIREMOCON DATA INPUT
37~42N.CNO CONNECTION
43POWEROTUNER POWER ON/OFF
44TUNEDITUNED DISPLAY INPUT
45STEREOISTEREO DISPLAY INPUT
46PLL DOOPLL SERIAL DATA OUTPUT
47PLL CKOPLL SERIAL CLOCK OUTPUT
48PLL DIIPLL SERIAL DATA I NPUT
49PLL CEOPLL SERIAL CHIP ENA BLE OUTPUT
50VFIPIFIP VDD : 30V
51~64G01~G14OFIP GRIDE SIGNAL OUTPUT
65,66N.CNO CONNECTION
67~86P01~P20OFIP ANODE SIGNAL OUTPUT
87~96N.CNO CONNECTION
97~100KEY INIKEY MATRIX INPUT
AREA
OPTION
I17(H), 18(H) : EUROPE OPTION
32.768KHz CRISTAL TIME OPERA TOR
8.0MHz CRYSTAL MICOM OPE RA T OR
11
12
Page 10
6. ADJUSTMENT PROCEDURE
(1) ALIGNMENT INSTRUCTIONS
EQUIPMENT NEEDEDIMPORTANT
AM Signal Generator1.Check power-source voltage.
FM Signal Generator2.Set the function switch to band
aligned.
Oscilloscope3.Keep the function input as low as possible
to adjust.
VTVM(AC,DC) accurately.
Test loop antenna (MW Adjustnent) 4.Modulation and
modulation frequency.
Dummy antenna(FM Adjustment)
Stereo signal modulator.
Distortion analyzerModulationModulation Frequency.
EQUIPMENT NEEDEDIMPORTANT
AM Signal Generator1.Check power-source voltage.
FM Signal Generator2.Set the function switch to band
aligned.
Oscilloscope3.Keep the function input as low as possible
to adjust.
VTVM(AC,DC) accurately.
Test loop antenna (MW Adjustnent) 4.Modulation and
modulation frequency.
(3) MW TRACKING ADJUSTMENT
Signal Generator : Connects to the MW Ant.
Coil through the loop antenna.
Adjust for the indication of VTVM of the wave form of
scope to be maximum.
NOSTEP
1612KHzMax sensitivityL102
21503KHzMax sensitivityCT01MW
3Repeat steps 1 and 2 several times.
AM-SG
MHz
60cm
FREQUENCY
AM LOOP antenna
OUTPUT
terminal
ADJUST FOR
AC EVM OSCILLOSCOPE
ADJUS-
MENT
(5) FM MONO DISTORTION ADJUSTMENT
DC VOLTMETER
Connect to TP02 (-),TP03 (+) through the chockcoil
(100 H).
Signal Generator
Connect to FM ANT. Jack (FM IN) through thedummy.
Distortion Meter
Connect to the output.
NOFREQUE NCYADJUST FOR ADJUSTMENT
1100.10MHz
2100.10MHzmin T.H.DT102
3Repeat steps 1 and 2 several times
FM-SG
MHz
OUT
Chassis
DC Voltmeter
0V
UNIT
Choke coil
TP12
TP13
100 H
output
T101
DC EVM
(7) FM/MW TUNED LEVEL ADJUSTMENT
FM Signal Generator : Connect to FM ANT. Jack (FM IN)
through the dummy.
MW Signal Generator : Connect to MW ANT. Coil thriugh
Loop antenna.
BAND STEP SIGNAL GENERATOR ADJUST FOR ADJUSTMENT
FM1100.10MHz 30dBTUNED ONVR02
2100.10MHz 30dBTUNED OFFVR02
MW1999KHz 80dBTUNED ONVR01
2999KHz 80dBTUNED OFFVR01
MODULATION
FREQUENCY
MW
FM
MODULATION
30%400Hz
100%(75KHz)400Hz
(2) TUNING FREQUENCY RANGE ADJUSTMENT
(FM) DC VOLTMETER
CONNECT TO TEST POINT TP1 and GND
(MW) DC VOLTMETER
CONNECT TO TEST POINT TP1 and GND
NOBAND
1FM87.50MHz 1.5VL4
2MW522KHz1VL103
FM
AM
GND
FREQUENCY
UNIT
TP11
GND
ADJUST
FOR
ADJUST-
MENT
DC EVM
(4) FM-RF ADJUSTMENT
Signal Generator : Connects to FM ANT. JACK (FM IN)
through the dummy.
NOFREQUENCY ADJUST FOR ADJUSTMENT
190.10MHzMax sensitivityL1,L2,L3
2Repeat step 1 several times
Note : Please distinguish 1/4W from 1/6W by the shape of parts
used actually.
3) DD1 x x x x 370, Ceramic capacitor
Disc type
Temp.coeff. P350~N1000, 50V
3 Capacity value
2 Tolerance
2 Tolerance (Capacity deviation)
0.25 pF ....... 0
0.5 pF ....... 1
5 % .......5
Tolerance of COMMON PARTS handled here are as follows :
0.5 pF - 5 pF ....... 0.25 pF
6 pF - 10 p F ..... 0.5 pF
12 pF - 560 pF ... 5 %
3 Capacity value
0.5 pF .... 0 0 53 p F ..... 030100 pF..... 101
1 pF .... 01010 p F ..... 100220 pF..... 221
1.5 pF .... 0 1 547 p F ..... 470560 pF..... 561
NOTE ON SAFETY FOR FUSIBLE RESISTOR :
The suppliers and their type numbers of fusible resistors are as
follows ;
1 . KOA Corporation
Part No.(MJI)Type No.(KOA) Description
NH05 x x x 140RF25S x x x x
NH05 x x x 120 RF50S x x x x 5% (1/2W)
NH85 x x x 110RF73B2A x x x x 5% (1/10W)
NH95 x x x 140RF73B2E x x x x 5% (1/4W)
Resistance value Resistance value(0.1
2. Matsushita Electronic Components Co., Ltd
Part No.(MJI)Type No.(MEC) Description
NF05 x x x 140 ERD-2FCJ x x x( 5% 1/4W)
RF05 x x x 140
NF02 x x x 140 ERD-2FCG x x x( 2% 1/4W)
RF02 x x x 140
Symbol Fire or electrical shock hazard. Only original
parts should be used to replaced any part marked with
symbol Any other component substitution ( other than
original type), may increase risk of fire or electrical shock
hazard.
NOTE
1) The above CODES(R,R,C,C
and C) are omitted on the schematic diagram in
some case.
2) On the occasion, be confirmed the common parts on the
parts list.
3) Refer to “Common Parts List” for the other common
parts(Rl05, DD4, DK4).