7B-2 7B-2 7B-2
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
12345
12345
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
9121
9123
9128
9100
9105
9114
7104
5106
5123
5124
6102
2123
2125
1104
2104
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
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+
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.
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
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
6101
9119
A
B
C
A
B
C
54321
54321
3148
3146
3178
3179
2
E
1101A1
1102A1
1103C1
1104B1
1105A1
1119C5
1120A5
1130B5
1131B5
2104A2
2105A1
2106C2
2107C2
2110C2
2115C1
2123A2
2125A2
2128C3
2129C4
2130A4
2133A4
2135B5
2137C5
2138A5
2144B5
2148B4
2155A3
2162A2
3105B3
3110A2
3132B3
3142A4
3147B5
3149C5
3152A5
3154C5
3157B5
3158A5
3159A5
3160A5
3161A5
3170C5
3171C5
3172C5
3173A5
5102C2
5103C2
5104C2
5105B2
5106B2
5109B4
5110B4
5111C3
5112C4
5113B3
5114C4
5115A4
5116A4
5119B5
5120B4
5121B4
5122B3
5123B2
5124B2
5126B3
5127B4
5130A3
5131A3
6101A2
6102A1
6103A1
6104A2
6106B3
6107C5
6109C2
6120C4
7102A3
7104C2
7105C3
7107B3
7119C4
9100A2
9101B3
9105B2
9111C2
9113B2
9114B2
9115B3
9117B2
9118B4
9119C4
9120B4
9121A2
9122C3
9123B1
9124C4
9125A3
9126B5
9128A2
9129B3
9130C3
9131A5
9133C3
9134B3
9136A5
9137A5
2101C4
2102C4
2103C3
2108A4
2109A4
2111A2
2112B5
2113A4
2114A4
2116B3
2117A3
2118B4
2119B4
2120B4
2122B3
2124A5
2126C2
2127C2
2131C2
2132C1
2134C1
2136B1
2139B2
2141B1
2142B1
2143A1
2145C1
2146C1
2147C1
2149B2
2150B2
2151C2
2152C3
2153C3
2154C3
2156C4
2157B4
2158B4
2159C2
2160C4
2161A3
2163A2
2164B1
2165B3
2166B2
2167B2
2168B 1
3101C3
3102C3
3103C3
3104B3
3106C4
3108A4
3109A4
3111A3
3112A3
3113A2
3114A3
3115A3
3116A3
3117B4
3118B3
3119A3
3120B4
3121A3
3122B3
3123A3
3125A3
3126B3
3127B3
3128B3
3133B4
3134B4
3136B4
3137B4
3140B2
3141C2
3143C2
3144C2
3145C2
3146A1
3148A1
3153C2
3155A2
3156A1
3167C2
3168B3
3169B2
3175A2
3176C2
3177A1
3178A1
3179A1
3180A4
3181C3
4101A4
4102A4
4103C2
4104A2
4105B3
4106B4
4107C4
4108B4
4109A3
4110A3
4111C1
4120C2
4150B2
4151B3
4152B3
4153B4
4154C3
4155A4
4156A2
4157B3
4158C2
4159A2
4160A1
4161A1
4162C1
4163C1
6105A4
6110A4
6111B4
6130C2
6131C3
7101B2
7103C2
7106A3
7108A3
7109A3
7111A1
7120B4
7121B3
7122B4
7123B4
7124C4
7125A1
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)
100nF
40
IC 7101
2141
shortcircuit
to block AFC
21
IC 7101
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
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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