Midland 2001 Schematic
5
4
3
2
1
SW 8V
1S1555
GNDGND
LED DISPLAYLED DISPLAY
ALL RESISTORS 1K
CHANNEL
D102D102
CB
CB
SW2(B)
SW2(B)
RX8V
MIC AUDIO
340-111
340-111
GREEN
GREEN
R185
R185
820R
820R
SWITCH
C105
C105
47n
47n
GNDGND
T5
T5
C116
C116
47p
47p
C117
C117
10n
10n
1414
L202
L202
22uH
22uH
1515
MIC GROUND IN TX
D D
C C
D101
D101
1S1555
1S1555
Q104
Q104
MPS9426
MPS9426
C118
C118
R107
R107
10n
10n
22K
22K
1515
PA
PA
MIC SKTMIC SKT
1
4
23
1313
GNDGND
C305
C305
C306
C306
C307
B B
C307
10n
10n
10n
10n
10n
10n
1S1555
2424
2323
2222
2121
2020
1919
C202
C202
10n
10n
C108
C108
10u
10u
C104
C104
47n
47n
GNDGND
R101
R101
2K2
2K2
C102
C102
10n
10n
C234
C234
4u7
4u7
C10141nC1014
1n
D115
D115
1N4148
1N4148
R181
R181
1K2
1K2
C175
C175
R180
R180
47n
47n
10K
10K
R182
R182
R179
R179
6K8
6K8
4K7
4K7
D107
D107
IC102
IC102
LC7137A
LC7137A
C200
C200
10n
10n
C198
C198
33p
33p
R152
R152
10K
10K
R154 2K2R154 2K2
C203
C203
27p
27p
10.240Mhz
10.240Mhz
C205
C205
C204
C204
35p
35p
R104
R104
82K
82K
C101
C101
10n
10n
C103
C103
10p
10p
T6
T6
GNDGND
340-112
340-112
YELLOW
YELLOW
Q101
Q101
MPS9426
MPS9426
R102
R102
18R
18R
C179
C179
10u
10u
GNDGND
R178
R178
R177
R177
4K7
4K7
220K
220K
IC105A
IC105A
-
-
+
+
LM324
LM324
R176
C177
C177
47u
47u
R176
PLL8V
C201
C201
10n
10n
GNDGND
R153
R153
33K
33K
C1991uC199
X101
X101
56p
56p
R1551KR155
1u
1K
R156
R156
150K
150K
C1135pC113
5p
C211
C211
Q113
Q113
27p
27p
MPS9426
MPS9426
C206
C206
20p
20p
C2105pC210
5p
C214
C214
C213
C213
10u
10u
10n
10n
GNDGND
L116
L116
340-108
340-108
C212
C212
120p
120p
TP1WTP1
W
R160
R160
R158
R158
R157
R157
4K7
4K7
22K
22K
100K
100K
C209
C209
C208
C208
68n
68n
22n
22n
R159
R159
47K
47K
C215
C215
27p
27p
C2185pC218
5p
C219
C219
27p
27p
D109
D109
MV2209
MV2209
R163
R163
100K
100K
MV2209
MV2209
C221
C221
33p
33p
D110
D110
Q115
Q115
MPS9246
MPS9246
C223
C223
10n
10n
8V
R114
R183
R183
470R
470R
C123
R106
R106
470R
470R
8V
D111 to D114
ALL DIODES
1N4148
R172
R172
10K
10K
C181
C181
15n
15n
340-117T8340-117
C107
C107
C123
10n
10n
T8
10n
10n
R171
R171
10K
10K
C182
C182
10n
10n
C124
C124
100u
100u
CF1
CF1
10.7
10.7
R189
R189
390R
390R
R169
R169
20K
20K
10n
10n
C183
C183
IC105C
IC105C
-
-
R170
R170
10K
10K
+
+
LM324
LM324
R168
R168
RV105
RV105
10K
10K
20K
20K
R1011
R1011
C2221nC222
1n
FM MOD (TO VCO)
R105
R105
2K7
2K7
T7
T7
340-116
340-116
WHITE
WHITE
C178
C178
10n
10n
22K
22K
Q102
Q102
150p
150p
MPS
MPS
9426
9426
C225
C225
Q103
Q103
MPS
MPS
9426
9426
C114
C114
150p
150p
C115
C115
47n
47n
R151
R151
470R
470R
R174
R174
220K
220K
IC105B
IC105B
R175
R175
-
-
2K7
2K7
+
+
LM324
LM324
R150
R150
R10K
R10K
C176
C176
10u
10u
R114
L105
L105
2K2
2K2
350-
350027
027
C109
C109
10n
10n
C111
C111
27p
27p
R191
R191
47K
47K
10K
10K
Vcc
Vcc
LIMIT
LIMIT
DEMOD
CF2
CF2
455
455
PA MIC AUDIO
TO SWITCH AND
VOLUME CONTROL
DEMOD
C128
C128
10p
10p
R116
R116
4K7
4K7
C135
C135
R115
R115
2K2
2K2
C126
C126
R118
R118
470R
470R
R124
R124
100K
100K
C125
C125
27p
27p
AMP
AMP
MIX
MIX
C127
C127
68n
68n
RX8V
C243
C243
1616
10n
10n
C224
C224
10n
10n
R161
R161
220K
220K
10p
10p
68n
68n
C216
C216
120p
120p
R164
R164
Q107
Q107
MPS9623
MPS9623
8V
Q114
Q114
MPS9246
MPS9246
C217
C217
220p
220p
R162
R162
2K7
2K7
3K3
3K3
R117
R117
68K
68K
IC101
IC101
MC3357
MC3357
FILTER
FILTER
AMP
AMP
R1121MR112
1M
C1321nC132
1n
C134
C134
C1311nC131
470n
470n
1n
R1007
R1007
39K
39K
C238
C238
R120
R120
R131
R131
10K
10K
7K5
7K5
470n
470n
10n
10n
68n
68n
C139
C139
C133
C133
C136
C136
10n
10n
R1020
R1020
C2271nC227
R1261KR126
2K2
2K2
1K
R125
R125
C2281nC228
100K
100K
1n
Q108
Q108
MPS9623
MPS9623
L107
L107
340-1D9
340-1D9
R135
R135
150K
150K
Q109
Q109
MPS9246
MPS9246
C195
C195
R136
R136
10n
10n
390R
390R
TX8V
R122
R122
10K
10K
D116
D116
MA150
MA150
SQUELCH
SQUELCH
TRIGGER
TRIGGER
D104
D104
D1001
D1001
1S34
1S34
1S34
1S34
R1009
R1009
90K
90K
R1006
R1006
1K2
1K2
R128
R128
D105
D105
1N60
1N60
1n
D1013
D1013
1N60
1N60
C10021uC1002
1u
C226
C226
10n
10n
C121
C121
10n
10n
C193
C193
15p
15p
L109
L109
340-1D9
340-1D9
R1004
R1004
56K
56K
2828
R123
R123
100K
100K
C1371uC137
1u
C129
C129
10n
10n
4K7
4K7
R1491KR149
1K
GNDGND
TX8V
R140
R140
100R
GNDGND
R139
R139
4K7
4K7
R138
R138
4K7
4K7
C194
C194
82p
82p
100R
C191
C191
10n
10n
L108
L108
GNDGND
340-014A
340-014A
C229
C229
100p
100p
(MIC)
(MIC)
Q110
Q110
MPS
MPS
9246
9246
R137
R137
2K7
2K7
R142
R142
68R
68R
C192
C192
R144
R144
10n
10n
C190
C190
10n
10n
GNDGND
R141
R141
68R
68R
C235
C235
10n
10n
10R
10R
1W
1W
GNDGND
L126
L126
R1431KR143
1uH
1uH
1K
C189
C189
330p
330p
2SC2314
2SC2314
C167
C167
60p
60p
L110
L110
Q111
Q111
340-015
340-015
C168
C168
220p
220p
L124
L124
0.5uH
0.5uH
C161
C161
100p
100p
GND
R147
R147
4R7
4R7
L123
L123
1/2W
1/2W
6u8
6u8
C166
C166
R146
R146
560p
560p
68R
68R
13.8V
1616
PA MIC
AUDIO
2727
SQUELCH
SQUELCH
10K
10K
2929
RV101
RV101
2K2
2K2
SQUELCH
SQUELCH
PRESET
PRESET
RV103
RV103
RF METER
RF METER
MM
20K
20K
GNDGND
D106
D106
1N60
1N60
C155
C155
10n
10n
SW2(A)
SW2(A)
PA
PA
22
CB
CB
VOLUME
VOLUME
50K
50K
GNDGND
METERMETER
R132
R132
820R
820R
33
C1421uC142
1u
C143
C143
2n2
2n2
2SC2078
2SC2078
C150
C150
R133
R133
330R
330R
13.8V
R148
R148
1K2
1K2
C162
C162
100p
100p
L111L111
L112
L112
0.2uH
0.2uH
C164
C164
Q112
Q112
180p
180p
C165
C165
180p
180p
C159
C159
(MIC)
(MIC)
27p
27p
C149
C149
180p
180p
68p
68p
4
5
1
GNDGND
6
IC1
TA7205P
7
3
C151
C151
33u
33u
C148
C148
4u7
4u7
L113
L113
L115L115
0.5uH
0.5uH
C172
C172
180p
180p
(MIC)
(MIC)
R196
R196
47K
47K
C1581pC158
1p
C154
C154
68n
68n
C146
C146
C147
C147
47u
47u
2
220u
220u
10
8
9
C141
C141
C144
C144
220p
220p
68n
68n
P.A. SPKRP.A. SPKR
C152
C152
10n
10n
C145
C145
C153
C153
10n
10n
10n
10n
GNDGND
EXT SPKREXT SPKR
R134
R134
4R7
4R7
2W
2W
PL259PL259
C301
C301
120p
120p
C169
C169
80p
80p
(MIC)
(MIC)
CHASSISGND GND
PA
PA
55
CB
CB
SW2(B)3
SW2(B)3
L120
L120
88
0.8uH
0.8uH
L118
L118
0.8uH
0.8uH
44
L121
L121
77
66
SPEAKERSPEAKER
L201
L201
22uH
22uH
TO PIN 3 MIC SOCKETTO PIN 3 MIC SOCKET
0.8uH
0.8uH
Q112
8V
R186
R186
220R
220R
C198
C198
C197
13.8V
ON/OFF
ON/OFF
CH101
CH101
SWITCH
+
1212
A A
13.8 VDC
1111
L125
L125
10uH
10uH
C171
C170
C170
10n
10n
C171
D108
D108
1N4003
1N4003
_
SWITCH
99
CHOKE
CHOKE
METER
METER
LAMP
LAMP
10n
10n
1010
11
C156
C156
1000u
1000u
R311
R311
150R
150R
1/2W
1/2W
123
C157
C157
47n
47n
IC103
LM7808
C185
C185
C241
C241
100u
100u
10n
10n
C184
C184
10n
10n
C197
10n
10n
10u
10u
R109
R109
390R
390R
1S1555
1S1555
Q105
Q105
MPS9681
MPS9681
R111
R111
R10021KR1002
R1101KR110
4K7
4K7
1K
1717
SW 8V
L122
L122
PLL8V
25uH
25uH
C236
C236
47n
47n
GNDGND
RX8V
D103
D103
1K
TX8V
3030
R1841KR184
1K
D118
D118
TX
TX
LED
LED
MIDLAND 2001
5
4
3
L110L110
Q111
L108L108
Q110
L109L109
L107L107
Q109
Q115
T7T7
D110
L116
L116
Q114
VCO
VCO
D109
Q113
X101
IC102
DO NOT
ADJUST
L111L111
Q104
Q101
T6T6
Q105
Q102
Q103
T8T8
2
L115L115
D108
RV103
RF
METER
T5T5
RV105
Q108
FM
DEV
Q107
RV101
SQUELCH
CF1
IC101
CF2
IC 105
PA
EXT
SPKR
SPKR
CH
101
IC104
IC103
L105L105
Draw By: Rick Jackson (Euro Radio Co).
Draw By: Rick Jackson (Euro Radio Co).
Draw By: Rick Jackson (Euro Radio Co).
Size Document Number Rev
Size Document Number Rev
Size Document Number Rev
D
MIDLAND 2001.SCH
D
MIDLAND 2001.SCH
D
MIDLAND 2001.SCH
Date: Sheet
Date: Sheet
Date: Sheet
1
of
11Wednesday, February 21, 2007
of
11Wednesday, February 21, 2007
of
11Wednesday, February 21, 2007
1.0
1.0
1.0
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