Marantz SR3000 Service Manual page 28

TUNER BOARD ECO5 /
Systems
1 2 3 4 5
y
1101
A
T001 y
2 9128
FM
300 OHM
1
Service Solution for
A
FM 50 OHM Local/DX - switching
B
x remove
1102 T002
9100
1
6101
2105
2
100p
BA484
T003
C
P0
MW/LW-RF
D AM FRAME AERIAL
1103
T005
2
T006
1
5102 MW
6
E 2
w 5
3108
w
LW=high
7104
2k2
1
BC338-40
3
4
B
LW
F
P0
w
w
5103
7105
4 3
BC338-40
2
MW=high
6 1
G
H
I
J
K
L
M
N
1 2 3 4 5
7B-4
6 7 8 9
2104
100p
100p (if 1102 is used)
C
47p
(if 1101 is used)
3105
T009
9101
to 3103
220R
REF
FM-RF REF
2129
100u
2165 T043
2.1V
Q-MULTIPLIER
100n
7102
2SA838B
0V
0V
5131
F
0V
6105 2
1 7
3101
HN1V02H 0V
MW 33k
s_5k6
Vcc1 T040
8V
FM-OSCILLATOR
3110
47R
VCO
3142 3141
1.3V
100k
56k
1V
1
5 T012
0.7V
2127
1.2V
220n
Vcc1
r
7103
BC858C
r
3176
1k
buffer amplifier
AM-OSCILLATOR
T011
3132 4108 u
9117
Vdd Vdd
47R
w
7109
w
3125
P0 10k
BC858B w
3128 w
7122
LW=high
2k2
BC848C
6 7 8 9
10 11 12 13 14
AM-IF1
5111
T046
4 3
450 kHz
E
6 1
z
5113
2
T013
FM-IF1
SFU450B x
4104 5109
T014
t
3104 7119
FM-IF2
180R 2SC1047
5110
0.15V 0.7V 1.4V 1.4V 1V 1.4V 0.7V 1.4V 0.7V
0.7V
44 43 42 41 40 39 38 37 36 35
AM Det. RF-GND
V A V
STAB STAB
1
Ripple
AM IF
AGC
FM
AM
AM
2 IF1
AM-RF Frontend MIXER
AM
CONTROL IF
AGC
3
FM-RF
AGC
AM FM
OSC
IF2
FM
4
Frontend
RF-GND
FM
MIXER
5
FM-OSC. FM
CONTROL
OSC Pre- Multi-
scaler plexer
AGC
AM
6
AM-OSC.
DET
V STAB A V B
STAB
Ripple
7 FM
Vcc1
V
STABILIZER
dd
DET
Vcc2
8 I-TUNE
Charge
Pump
9 TEA5757 XTAL
VCO
7101
z_TEA5759 OSC.
10
AF-Out
Mono/
STEREO
Stereo
AFC
11
MPX-IN
DECODER
Vcc2
IF GND
12 0.8V 13 0.7V 14 0.7V 15 0.7V 16 1V 17 18 1V 19 1.2V 20 1.2V 21 2V 22
0.1V
(2140)
2164
5119
4 3 470n
2
2
6 1
2140 exchanged by 2164
r (SMD type 0805)
3144
3140 and 5120 from layout stage 3317.9 onwards
MPX
1k
DISCRIMINATOR
to 1121 provisional as respectively 3103 303 3380.1
and 3103 308 3396.1
alternative
5123 MW
4 3
2
6 1
w
w
5122 LW
7124
4 3
BC848C
w
3137
2
P0
22k
MW=high
6 1
10 11 12 13 14
7B-4
15 16 17 18 19
VERSION PROGRAMMING COMPONENTS
AM-IF2
5112
3 4
450 kHz
/00 FM/MW/LW
1 6
/00 FM/MW/LW/SW-Eu
/01 FM/MW-Stereo
2
z
3175
AM-IF /01 FM/MW
to 1130,1131
2k7
AM Stereo module
/01 FM/MW/SW-Ov
/06 FM-Japan/MW-stereo
/13 FM/MW-Stereo
/14 FM-OIRT/MW/LW
T047
/14 FM-OIRT/MW
1.4V
34 /17 FM/AM-Stereo
/17 FM/AM
B
5114
33 0.7V /.. FM/MW/2xSW
FM-IF2 3
AM-AFC
/15 FM/MW/SW-Eu
450 kHz
T015
32 1 x = component mounted
AM-AFC 1.4V
SW = Software initialisation
T037
31 P1
P1
x
2161
Programmable
Output Ports
T032 100n
30 P0
P0
x
2163
3161 T020
100n MPX
29
Write
from 3144
470R
Enable
3160 T021
DATA 28
470R
3159 T022
470R
CLOCK 27
T023
stereo 0.5V
mono 4.9V
26
Dig.GND
7111
5121
2167 BC848C
3156
25 P1
12p T024
75KHz
100k
1.3V
3169
2166
150k version detection T025
1n
24
Mono/ stereo 0.3V
mono 4.9V T026
Stereo
3167 T027
23 Vcc1
8V
Vdd Vdd 8V 220R
3155
Vdd T018
8V 470R
11V
z_100R
3171 3154
T045
330R 150R
z
7125
BC848C
z
3147
3M3
P0
x
2137
220n
x
2135
220n
P1
AM-IF
r....for RDS version only
s...for East European version (/14/34) only
t....for Japanese version (/06/26) only
6105
Chip jumper u...for 2-band (FM/AM) version only
1 8
v...for SW-version 3.9-12.1MHz only
2 7
w...for LW only
41..
3 6
x....not for all versions
4 5
y....for USA version (/17/37) only
z....for AM-STEREO (/06/13/26/33) versions only
HN1V02H
15 16 17 18 19
20 21
1101 A 1
1102 B 2
1103 D 2
1121 E20
1124 G20
1126 E20
1130 I20
6120 3156 3157 3170 remark A
1131 I20
2101 C 6
x - - -
7111 2102 G 7
not mounted 2103 D 9
- - - -
2104 B 6
2106 F 5
- - x - SW
2107 G 6
2108 G 3
- x - x
2109 G 3
2111 C13
- x - - 2120 L11
B
2122 N11
2123 M11
- - - x
2125 M11
2126 G 9
- - x - SW
2127 G10
2128 C11
x - x x
2129 C 9
2130 H17
x - x -
2131 I10
2132 I10
SW
- - x -
C 2133 H11
2134 J17
x - - x 2135 J18
2136 J17
- - x x 2137 J18
2138 H12
2139 H13
- x x x
2140 H14
2141 H14
2142 H14
2143 I17
D
2144 H17
2145 G16
150kHz, 50mV pp 2146 F15
5V
2147 F16
2148 F16
r 2149 C15
1121
2150 B13
1
0V 2152 F 7
GND
stereo mono stereo 2153 E 8
2154 E 7
2
MPX 2155 D 8
E
1126 2158 M11
3 1
0.3V 2159 F 9
enable
2160 M12
2161 D16
2
0.2V 4
data 2163 E16
2164 H14
3
3 2165 C 9
5
clock
2166 G16
2167 F16
4
6
2168 I 13
stereo
F 3101 E 7
3102 E 7
3103 C 8
3104 B11
3105 C 7
3108 E 3
1124 3109 F 2
1
left 3110 F 6
3113 C13
3119 B13
2
GND
3120 C 6
4
G
3123 M 7
3 3125 M 6
right
3128 M 8
3132 L 9
4
(11 - 14V) Vcc 3134 M12
3137 M13
typ. 12V
3140 I13
3141 G10
3142 G 9
3143 I10
H 3144 I10
3145 H10
3146 I17
3147 I15
3152 H18
z
3153 H19
1130
z
3154 H18
1131
T030 1 3155 H17
V+ 3156 G17
3157 F17
T031 2
3158 F18
stereo
I
3159 F18
3160 E18
3
3161 E18
STSIG
3167 G18
3169 G15
Low=AM mono 4
VCO-kill 3170 F17
3171 H15
T033 5
3175 B16
R-out
3176 J 9
3177 I18
T034 6
L-out 3178 I15
J
3179 I16
3180 M7
T035 7
L-FM
4101 G 5
4102 F 5
T036 8
4103 G 9
R-FM
4104 B13
4105 B11
9
+FM 4106 K12
4108 L 9
5102 E 4
T038 10
GND
5103 F 4
K
5109 B13
T039 11 5110 B14
AM-IF
5111 A13
5112 A15
5113 B12
5114 C16
5119 I 12
5120 H13
5121 F15
5122 M11
L
5123 L11
5130 E 8
5131 D 8
Signal path
6103 C 2
6104 C 3
6105 K12
FM
6105 E 6
6106 C 6
AM
6107 H17
6120 G16
MPX (Audio Frequency)
6130 E 7
M
6131 D 7
AF - left/right
7101 G11
7102 D 8
7103 I 9
7104 E 3
............. Vdc FM mode stereo 7105 F 2
7109 M 7
7111 F18
V Vdc MW mode
7119 B13
EVM
V 7122 M 9
V Vdc LW mode
7124 M13
N
7125 I16
Voltages measured while set is tuned to a strong transmitter 9100 B 4
9101 C 6
9117 L10
9128 A 4
ECO5 systems, discr.coil, 030998
20 21