marked components to be assembled
as service solution for
Local/DX
- switching
SW
FM
E
C
A
C
A
A
C
B
C
C
34
E
11
FRAME
1
4
5
AM
98-05-14
B
339623033103
B
1
A
B
C
A
B
C
1 2345
1 2345
ECO 5 TUNER BOARD / component side view
VCC
VCC2
GND
MPX
ENABLE
DATA
CLOCK
STEREO
DATA
ENABLE
LEFT
GND
RIGHT
FM 300 OHM
FM 75 OHM
Connector for
AM - stereo Module
2SA...
E
C
B
C
B
E
BC...
SW
VCC
GND
VCC2
1101
1102
2162
3110
6101
6103
6104
5130
5131
7102
9125
5115
1126
1127
3160
5116
9136
9137
1122
1120
3158
3159
3161
1123
1124
1125
1121
1105
SW-OSC
MW-OSC
9113
9117
9121
9123
9128
9100
9105
9114
7104
5106
5123
5124
6102
2123
2125
1104
2104
2105
3105
9101
9115
9134
7107
5126
6106
FM-OSC
5109
5113
5122
FM-RF
LW-OSC
SW-RF
FM-RF
2155
2130
VCO
9118
5127
9120
9126
9131
3173
5110
5121
6120
3157
3170
31713172
3142
3147
2144
2148
2133
2135
2138
11301131
AM-IF
GND
+FM
R-FM
L-FM
L out
3152
6109
SW-RF
MW-RF
LW-RF
9111
2107
5103
5104
5102
1103
2106
2110
2115
LW-RF
MW-RF
SW-ANT
9122
9130
9133
AM-IF1
5111
7105
5105
2128
2129
AM-AFC
AM-IF2
6107
9119
9124
5112
5114
3149
3154
1119
2137
SEARCH
SENS.
R out
VCOkill
STSIG
STEREO
V+
1
AM FRAME AERIAL
1
ECO5 3396 stage .2, 250698
Voltage multiplier board
This assembly drawing shows a summary
of all possible versions.
For components used in a specific version
see schematic diagram respectively partslist.
1
11
1
1
7119
5120
9129
3132
5119
DISCRIMI-
NATOR
A
1 CF
4
3
D
B
marked components to be assembled
as service solution for
Local/DX
- switching
SW
FM
E
C
A
C
A
A
C
B
C
C
34
E
11
FRAME
1
4
5
AM
98-05-14
B
339623033103
B
1
ECO 5 TUNER BOARD / copper side view
This assembly drawing shows a summary
of all possible versions.
For components used in a specific version
see schematic diagram respectively partslist.
ECO5 3396 stage .2, 250698
41..
in schematic diagram)
(not all items shown
Chip jumper
EB
C
A
C
1
23
34
12
54
18
2102
2103
3101
3143
3167
4154
3176
6111
7123
7124
3134
9114
3136
3137
4106
4107
4108
4153
2120
2157
3106
2112
2118
2119
7122
7101
7120
6130
6131
4150
4151
4152
4157
3126
3128
3168
4105
4120
3102
3103
3118
3120
3122
2153
2154
2158
2160
3104
2101
2116
2122
2149
2150
2152
2159
7103
4103
3153
3169
2166
2167
3141
3145
2145
2146
2151
2134
2136
2147
2131
2132
4111
6105
6110
3108
3133
4101
4102
4155
2108
2109
2113
2124
7108
4109
4110
4156
3112
3114
3116
3117
3121
2114
2117
3109
3177
3113
4159
3155
3156
3175
2143
2163
3181
2105
6101
9119
A
B
C
A
B
C
5 4321
5 4321
3148
3146
3178
3179
4160
4161
7111
7125
4158
3144
4162
4163
2126
2165
2156
3119
2111
4104
2161
2127
7121
3127
2141
2142
2164
2139
2168
3140
7106
3125
7109
3111
3123
3115
3180
51 CF 4
3
A
D
2
E
VARICAP ALIGNMENT
FM RF
FM IF
VCO
AM IF
AM RF
3)
108MHz
87.5MHz
(65.81MHz)
87.5MHz
(65.81MHz)
87.5MHz
(65.81MHz)
279kHz
153kHz
1602kHz
531kHz
5130
check
5122
check
5123
check
8V ±0.2V
4.3V ±0.5V
(1.2V ±0.5V)
8V ±0.2V
1.1V ±0.4V
8V ±0.2V
1.1V ±0.4V
1494kHz
558kHz
560kHz 5102
1500kHz
5103198kHz
1494kHz
558kHz
560kHz
1500kHz
198kHz
2106
5102
2106
3142 152kHz ±1kHz
1)
98MHz
5112
MAX
FM
87.5 - 108MHz
(65.81 - 74, 87.5 - 108MHz)
LW
153 - 279kHz
MW
FM/MW/LW- version, 9kHz grid
531 - 1602kHz
1700kHz
530kHz
5123
check
8V ±0.2V
1.1V ±0.4V
1602kHz
531kHz
5123
check
6.9V ±0.2V
1.1V ±0.4V
108MHz
108MHz 2155
5131
MW
FM/AM-version, 10kHz grid
530 - 1700kHz
FM
MW
LW
98MHz, 1mV
continuous wave
450kHz
connect pin 6 of
IC 7101 (AM Osc.)
with short wire to
ground (pin 4)
Use service test program. By selecting the TUNER TEST test frequencies will be stored as preset frequencies automatically.
4
1
3
4
4
A
A
5119FM
10.7MHz, 50mV
continuous wave
2F
mod=1kHz
∆f=±22.5kHz
1)
If sensitivity of frequency counter is too low adjust to max. channel separation
(input signal: stereo left 90% + 9%, adjust output on right channel to minimum)
Repeat
ECO5, discr. coil, 090797
TUNER ADJUSTMENT TABLE ( ECO5 FM/MW- and FM/MW/LW - versions with AM-frame aerial )
∆f=±15kHz
V
RF
= 3mV
C
see
remark
2)
220R
100nF
36
IC 7101
220R
100nF
40
IC 7101
2141
shortcircuit
to block AFC
21
IC 7101
max.
symmetric
f
o
AM AFC
MW
C
continuous wave
V
RF
= 10mV
5111
5114
2
0 ± 2 mV DC
0 ± 3 mV DC
MW
4)
FM/MW/LW- and FM/MW-version
( 9kHz grid)
531 - 1602kHz
B
∆f = ±30kHz
V
RF
as low as
possible
max.
symmetric
f
o
MW
FM/AM-version, 10kHz grid
530 - 1700kHz
3)
For AM RF adjustments the original frame antenna has to be used !
2)
RC network serves for damping the IF-filter while adjusting the other one.
4)
MW has to be aligned before LW.
Waverange Input frequency Input Tuned to Adjust Output Scope/Voltmeter
FM
87.5 - 108MHz
(65.81 - 74, 87.5 - 108MHz)
FM/MW-version, 9kHz grid
531 - 1602kHz
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