Circuitos De Cc Y De Audio 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
POST_LIMITER_FLAT_TX_AUDIO_RETURN_OPT_BRD
1000pF
FLAT_TX_AUDIO_INPUT_ACCESS_CONN
DETECTOR_AUDIO_SEND_OPT_BRD
UNMUTED_RX_AUDIO_SEND_OPT_BRD
RX_AUDIO_RETURN_OPT_BRD
TX_AUDIO_SEND_OPT_BRD
TX_AUDIO_RETURN_OPT_BRD
DISC
IF504
PA_BIAS
C1093
220pF
NU
9V
R5078
100
R5077
300
C5009
C5010
10uF
10uF
EXTERNAL_MIC_AUDIO
_ACCESS_CONN
R5075
510
VS_MIC
VS_AUDIO_SEL
MIC_AUDIO_CH
C5071
1000pF
C5056
R5024
100K
0.1uF
C5101
C5055
R5023
100K
1uF
R5025
100K
3V 3V
R5044 R5063 R5064
24K 8.2K
8.2K
DNP
DNP
C5054 0.1uF
C5053
0.1uF
R5043
24K
R5040
30K
C5052
0.1uF
C5051
0.1uF
R5042
24K
C5050
0.1uF
3V
C5022
0.1uF
IF505
1 IF506
R
C1094 PWR_SET VOX
C1131 C1090
1000pF
220pF
NU 220pF
NU NU 3V
C5014 C5023 C5028 C5013
0.1uF 0.1uF
2.2uF 1.0uF
C5020
DNP
C5019 R5052
0.1uF
10K
0.1uF
VAG=4.5v
VAG
R5076
510
R5053
C5011
10K DC_POWER_ON
10uF
BW_SEL
CH_ACT
C5047
R5054
SQ_DET
10K
3V
0.1uF
LSIO
R5070
C5046 HSIO
2.2K
R5084
0.1uF ASFIC_CS
0
C5103
SPI_CLK
SPI_MOS I
0.1uF
DNP IN MARLIN 2
F1200
R5047
VPOS
4 NC
0 C5091
uP_CLK
82pF
5
C5102 COM R5026
6
IN
1
NO
33K
0.1uF GND
3
8
U515 6
R5014
7
USE NLAS4599
5
MAX4599EXT
U507-2
0
4
LM2904
1000pF
C5045
1uF
C5090
9V
82pF
R5046
24K
C5081 C5033
0.1uF
1000pF 1
U506-1
LM2904
R5067
6.2K
DNP
3V C5057
0.1uF
R5034 36K
R5080
R5032
10
C5012
4.7uF
FLAT_OR_DEEMPH_RX_AUD_SEL
1 36
VDDA TXRTN
2 35
DISC
GCB3 3V 3V 5V
3 34
GNDA CLK168
4 33
DACU
VDDD R5010
5 32
DACR VDDCP
6 U504 31
DACG 0
GNDD
30
7
VOX 30C53 R5011
GNDDO
29
8
PLCAP F1200
3V
9 28 DNP
SQI N 0 DNP
SY N
10 27
UIO VDDSY N C5034
11 26
VDDDAC
NC
12 25
R5088
SQCAP PLCAP 2 0.1uF
0
DNP
C5058
R5058
C5059
2
DNP
.022uF
10K 3
0.1uF
3V
R5060
C5036 10K
R5061
C5025
10K
C5024 0.1uF
0.1uF
0.1uF
R5008
R5033
3V
47K
0
AUDIO_PA_EN
R5072
4.7K
R5027
270K
C5077
3V
C5089
82pF
R5068
R5022
6.2K
DNP 100K R5056
10K
U506-2
LM2904 8
6
R5045
7
8
5
2
33K
4
3 C5032
4
0.1uF
R5057
C5078 3V
10K
1000pF
C5088
R5009 82pF
0 C5027
0.1uF
R5021
U509
MC14053B 100K
16
6
VCC
EN
12 C5044
X0 8
14 6
X
47K 13 7
11
X1
A
1uF 5
2
VAG
Y0
15
4
Y R5065
1 10
6.2K
Y1
B
5
Z0
4
Z U505-2
3 9
Z1
C LM2904
GND VEE
8 7
FLAT_TX_AUDIO_MUTE
C5087
120pF
R5019
200K
C5048
R5055 8
2
3V 10K 3
0.1uF
VAG
C5075
4
1000pF U505-1
LM2904
C5031 C5082 C5076
R5059
10K DNP 0.1uF 1000pF 1000pF
B+
8 C5049
R5013
1 C5021
U502
0 TDA1519C 0.1uF
4 0.1uF
DNP 7
U507-1
LM2904
9 OUT1 4
IN V
1
NINV
3
RR
6
OUT 2
8
M_SS
FILT_SW_B+
C5002
47uF
R5051
12K
Q501

Circuitos de CC y de audio 25-45 W VHF2 (146-174 MHz) (hoja 2 de 2)

4-15
9V
C5030 C5079
0.1uF 1000pF
C5003
R5086
47uF
RX_AUDIO_OUTPUT
560 _ACCESS_CONN
R5087
100K
16.8MHz
MOD_OUT
1
HANDSET_RX_AUDIO_CH
R5066
1K
C5080
1000pF
L501
35U02
SPKR+
SPKR -
L502
35U02