Transmisor 25-45 W Vhf2 (146-174 Mhz) (Hoja 2 De 2) - Motorola EM200 Serie Manual De Servicio

Esquemas eléctricos del radio VHF2 25-45 W banda 2, tarjeta de circuito impreso 8486487Z04
IF109
COMP_B+
IF110
PA_FILT_B+
R123
R124
R125
Final_cur_sense
INTEGRATOR
INTEGRATOR
R111 R114
L119
NU NU
35U02
C1115 C1099 C1100 C1116 10K
1K
C1055
R113
220pF
220pF 1000pF 1000pF
10K
1000pF
NU
1000pF
NU
R110 R115
1K 10K
NU NU
C1058
L117 R116
10K
1000pF
35U02 NU NU
C1003
C1002
1uF 470pF
NU
L115
17nH
Q100
MRF1550
GND1 R191 C1005
R190
GND2
1MEG
G
120pF
1MEG
NU
DET_VFW D
R135
43K
TP107
1
4 R148
13
R145
14
D102
C1051 22K
12
22K
U103-4
1000pF
11
MC3303
C1050
V_REF_OPAMP
V_REF_OPAMP
1000pF
R132
100K
U102-2
NU TP108
LM2904
NU 1
5
4
R177
7
Final_cur_sense
6 TP113
100 NU
FILT_SW_B+_PA
C1056 8
C1073
IF112
NU 1000pF
DET_VRVS
NU
R112
62K
NU
R104
51
L132
NU
18nH
R198 R196
0 0
NU
C1096
Coupler
C1133
82pF
7.5 width 2.032
1000pF
L116
17nH
L131
120nH
C1019
C1004 C1008 C1009 C1007 C1021 C1013 R195
120pF
82pF 6.2pF 6.2pF 32pF 0
7.5pF 62pF
NU
NU
R103
120
V_forward
L130 C1135
120nH
TP112
NU 1000pF
1 D105
Place near both sides of PA shields
IF111
R5290 R160
C1134
100 3.3K
C1080 C1101 R118 47pF
100
NU
1000pF 100pF
R161
3.3K
D106
FLT_9V
R151
5.6K
L103
Temp. Sense
1uH
C1052
RT100
47K
1000pF
R149
U103-1
22K
MC3303
3
11
R142 C1059
1
2
22K 1000pF
4
R143
22K
R156
10K
D107
1
R5291 R162
V_reverse
100
3.3K
C1079
C1102
R163
1000pF
3.3K
100pF R120
R121
100 100
D108
C1132
C1111
82pF
470pF
V_reverse
D104
L123 L113 L112 L111
1.2uH 51nH 51nH 51nH
C1011
C5112
82pF
NU
C1199 C1022 C1020 C1137
16pF
16pF 28pF 39pF 43pF
NU
NU
L114
C1136
51nH
4.7pF
PA_FILT_B+
NU
TP114
R185
10K
1
R108 L108
1.2uH
51
C1035
C1010
VR102
.022uF
R107
100pF
51
NU
5.6V
Q106
R172
470
Q103
C1067
1000pF
R157
56K
C1130
220pF
TP110
1
C1091
1000pF

Transmisor 25-45 W VHF2 (146-174 MHz) (hoja 2 de 2)

4-9
M4
1
1 1
Antenna Connector (Mini-U / BNC )
L124
1 J11- 1
48nH
2 J11- 2
3 J11- 3
C1017
R150
C1018 G1 J11-4
47K
39pF G2 J11- 5
15pF
C1108
IF101
D103
RX
C1121
68pF
6.8pF
C1006
NU
160pF
IF102
TX_EN
C1077
1000pF
IF103
PWR_SET