Marantz SR-3000, Service Manual

7B-4

7B-4

to 1130,1131
AM Stereo module

z

3175

2k7

AM-IF

z

5113

SFU450B

to/from

AM-stereo module

AM-IF

P0

Low=AM mono

P1

T030

T031

T038

T039

z

AM-IF

GND

+FM

R-FM

L-FM

L-out

R-out

VCO-kill

STSIG

stereo

V+

1131

z

1130

11

10

9

8

7

6

5

4

3

2

1

T033

T034

T035

T036

z

3177

10k

3147

3M3

7125

BC848C

3179

1M

z

z

z

3178

3M3

z

z_100R

2111

100p

7119

2SC1047

3113

1k

t

3119

t

t

t

330R

3

6

5

4

1

2

1121

MPX

GND

r

3143

22k

Vcc1

7103

BC858C

r

r

3144

1k

r

3176

1k

r

MPX

MPX

to 1121

buffer amplifier

from 3144

r....for RDS version only

Vcc2

V

dd

AGC

AM IF

CONTROL

AGC

AM Det.

CONTROL

AGC

IF

AM

Charge

Pump

DECODER

STEREO

AFC

DET

AM

DET

IF2

IF1

FM

FM

FM

STABILIZER

OSC

AM

AM

MIXER

AM

Frontend

AGC

Frontend

FM

FM

MIXER

FM

Pre-

scaler

Multi-

plexer

OSC

x

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

x

x

-

x

x

x

x

x

x

x

x

-

x

x

x

-

-

x

x

x

VERSION PROGRAMMING COMPONENTS

3170

remark

7111

not mounted

3157

3156

6120

/15 FM/MW/SW-Eu

/.. FM/MW/2xSW

/17 FM/AM

/14 FM-OIRT/MW/LW

-

-

x

x

/14 FM-OIRT/MW

/13 FM/MW-Stereo

/06 FM-Japan/MW-stereo

/01 FM/MW/SW-Ov

/01 FM/MW

/01 FM/MW-Stereo

/00 FM/MW/LW/SW-Eu

/00 FM/MW/LW

x = component mounted

-

-

-

x

/17 FM/AM-Stereo

SW

SW

SW

SW = Software initialisation

t....for Japanese version (/06/26) only

Stereo

Mono/

Ripple

Mixout

Mixout

FM-IF2

Enable

OSC.

Stereo

FILTER

printed

printed

AGC

FM-In

RF-GND

AM-IF1-in

AM

FM

FM-IF1 in

AM-IF2

V

STAB

B

V

STAB

A

FM-IF2

AM-AFC

P1

P0

Write

DATA

CLOCK

Dig.GND

XTAL

Mono/

Vdd

Vdd

Vdd

Vcc2

Fieldstrength Indic.

AFC+

AFC-

FM-Demod.

IF GND

PILOT

right

left

MUTE

LPF

MPX-IN

AF-Out

VCO

I-TUNE

Vcc1

AM-OSC.

FM-OSC.

RF-GND

FM-RF

AM-RF

Ripple

y....for USA version (/17/37) only

z....for AM-STEREO (/06/13/26/33) versions only

x....not for all versions

w...for LW only

v...for SW-version 3.9-12.1MHz only

u...for 2-band (FM/AM) version only

AM-AFC

450 kHz

AM-IF2

AM-IF1

FM-IF2

FM-IF1

to 3103

FM-RF

Q-MULTIPLIER

TUNER BOARD ECO5 

/ 

Systems

MW/LW-RF

MW

MW

VCO

AM-OSCILLATOR

version detection

DISCRIMINATOR

6131 D 7

6130 E 7

6120 G16

6107 H17

6105 E 6
6106 C 6

6105 K12

6104 C 3

6103 C 2

5131 D 8

5130 E 8

5123 L11

5122 M11

5121 F15

5119 I 12
5120 H13

5114 C16

5113 B12

5112 A15

5111 A13

5110 B14

5109 B13

5103 F 4

5102 E 4

4108 L 9

4106 K12

4105 B11

4104 B13

4103 G 9

4102 F 5

4101 G 5

3177 I18

3176 J 9

3175 B16

3179 I16
3180 M7

3178 I15

3171 H15

3170 F17

3169 G15

3167 G18

3161 E18

3160 E18

3159 F18

3158 F18

3157 F17

3156 G17

3155 H17

3154 H18

3153 H19

3152 H18

3147 I15

3146 I17

3145 H10

3143 I10
3144 I10

3142 G 9

3141 G10

3137 M13
3140 I13

3134 M12

3132 L 9

3128 M 8

3125 M 6

3123 M 7

3110 F 6

3120 C 6

3113 C13
3119 B13

3109 F 2

3108 E 3

3105 C 7

3104 B11

3103 C 8

3102 E 7

3101 E 7

2167 F16
2168 I 13

2166 G16

2165 C 9

2164 H14

2163 E16

2161 D16

2160 M12

2159 F 9

2158 M11

2155 D 8

2154 E 7

2153 E 8

2152 F 7

2150 B13

2149 C15

2148 F16

2147 F16

2146 F15

2145 G16

2144 H17

2143 I17

2142 H14

2141 H14

2140 H14

2138 H12
2139 H13

2137 J18

2136 J17

2135 J18

2134 J17

2133 H11

2132 I10

2131 I10

2130 H17

2129 C 9

2128 C11

2127 G10

2126 G 9

2125 M11

2123 M11

2122 N11

2120 L11

2109 G 3
2111 C13

2108 G 3

2107 G 6

2106 F 5

2104 B 6

2103 D 9

2102 G 7

2101 C 6

1130 I20
1131 I20

1126 E20

1124 G20

1121 E20

1103 D 2

1102 B 2

1101 A 1

9128 A 4

9117 L10

9101 C 6

9100 B 4

7124 M13
7125 I16

7122 M 9

7119 B13

7111 F18

7109 M 7

7105 F 2

7104 E 3

7103 I 9

7102 D 8

7101 G11

4

5

1

6

7

8

9

10

11

12

13

14

15

2

16

17

18

19

20

21

3

K

J

N

I

H

G

F

E

D

C

B

A

M

L

K

J

N

I

H

G

F

E

D

C

B

A

M

L

4

5

1

6

7

8

9

10

11

12

13

14

15

2

16

17

18

19

20

21

3

HN1V02H

Chip jumper

8

7

6

5

4

3

2

1

6105

z_TEA5759

to/from

COMBI BOARD / 

Source Selector part

to/from

CONTROL BOARD

x

x

x

x

FM 50 OHM

LW

LW

MW

w

w

w

w_27p

2166

1n

2165

100n

x

2163

100n

10p_w

2158

2159

33p

2126

330p

2142

100n

2145

220p

2150

100n

1u

2107

2146

220p

2147

220p

2148

22n

2143

220n

2141

100n

470n

2164

2136

15n_y22n

2134

15n_y22n

2149

22n

2104

100p

2103

1n

2101

100p 

(if 1102 is used)

2130

22n

2132

470n

2131

470n

2127

220n

w

2109

10p

w

2108

100p

w

2122

3n3

2125

560p

w

2123

390p

22p

2120

x

2154

4p7

2102

10n

u

2160

22n

x

2161

100n

2167

12p

3169
150k

3105
220R

3132

47R

3146

22R

3157

100k

3161

Programmable
Output Ports

470R

3160
470R

3159
470R

3158

470R

3156
100k

470R

3155

150R

3154

3167

220R

3153

470R

3152

470R

3141

56k

3145

2k2

4k7

w

3109

3108

2k2

w

3128

2k2

3125

10k

3134

22k

w

3137

22k

3170

100k

s_5k6

3101

33k

3102

100k

t_18k

47p 

(if 1101 is used)

3103

18k

3104
180R

3110

47R

3171
330R

4k7

3123

6104

1N4148

6103

1N4148

6120

1N4148

y

9128

9101

9100

u

9117

P0

P0

P0

P0

P1

P1

Vcc1

Vcc1

Vdd

REF

REF

Vdd

AM FRAME AERIAL

7101

TEA5757

10

11

12

13

14

15

16

17

18

19

1

20

21

22

23

24

25

26

27

28

29

2

30

31

32

33

34

35

36

37

38

39

3

40

41

42

43

44

4

5

6

7

8

9

7104

7111

BC848C

w

7105

BC338-40

BC338-40

w

7122

BC848C

w

7124
BC848C

T001

T002

T003

T005

T006

T013

T012

T011

T009

T014

T015

T017

T016

T018

T020

T021

T022

T023

T024

T025

T026

T027

T032

T037

T045

T041

T042

T040

T043

T044

T046

T047

2144

1u

2138

2u2

2128

10u

2129

100u

2133

1u

2135

220n

2137

220n

stereo

clock

data

enable

1126

1

4

3

2

Vcc

right

GND

left

1124

1

4

3

2

4105

u

4102

u

4101

4103

4104

4108

4106

FM

300 OHM

y

1101

1

2

1103

1

2

5112

1

2

3

4

6

5111

1

2

3

4

6

x

1102

1

2

1SV228

6131

5131

2155

3-11p

3142

100k

w_4-20p

2106

3-11p

3

6105

5

6

HN1V02H

2

6105

1

7

HN1V02H

w

5103

1

2

3

4

6

w

5122

1

2

3

4

6

5123

1

2

3

4

6

7109

BC858B

7102

2SA838B

5109

5110

6107

BZX79-C11

5114

1

3

5102

1

2

3

4

5

6

5121

75KHz

3180

22k

41..

ECO5 systems, discr.coil, 030998

V

STAB

B

V

STAB

A

w

w

450 kHz

450 kHz

s...for East European version (/14/34) only

6106

1N4148

3120

0R

2139

15p

(2140)

2140 exchanged by 2164
(SMD type 0805)
from layout stage 3317.9 onwards
respectively 3103 303 3380.1
and 3103 308 3396.1

2168

82p

5119

1

2

3

4

6

w

5120

CDA10.7MG61KA

3140

150R

3140 and 5120

provisional as

alternative

FM-OSCILLATOR

15p

s_12p

t_2p2

s_560p

2152

33n

6130

5130

LW=high

MW=high

LW=high

MW=high

0.7V

0.1V

V

1.3V

0.15V

0.7V

1V

0.7V

0.7V

1.4V

1.4V

1.4V

1.4V

1.4V

1.4V

0.7V

0.3V

0.2V

5V

0V

150kHz, 50mV

pp

stereo

stereo

mono

(11 - 14V)

typ. 12V

11V

8V

8V

8V

1.2V

2V

1.3V

 stereo 0.3V
 mono  4.9V

 stereo 0.5V
 mono  4.9V

1.2V

1V

1V

0.7V

0.7V

0.7V

0.8V

1.2V

0.7V

1V

0V

8V

0V

0V

0V

2.1V

.............

Vdc FM mode stereo

Vdc MW mode

Vdc LW mode

Voltages measured while set is tuned to a strong transmitter

EVM

V

V

4

3

C

1

2

B

E

6101

remove

Service Solution for
Local/DX - switching

BA484

2105

100p

3106

10k

9114

9119

4155

4156

P0

A

5

F

Signal path

FM

AF - left/right

AM

MPX (Audio Frequency)