Motorola CP150TM User Manual
Page 131
VHF 146-174 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)
7-61
6880309N62-C
June, 2005
0 V (Rx)
R516
MICROPHONE CONNECTOR
3 V (Tx)
Not Placed
7.5 V
100k
3.5V (UNSQ)
3.5V (UNSQ)
0.15 V (UNSQ)
3 V (UNSQ)
1.5 V
145 mV RMS
114 mV (RF)
Supply = 7.42
1/2 Supply = 3.22
INTERNAL SPEAKER
0
Not Placed
R517
0
Not Placed
Not Placed
3.46 V RMS (Rx)(0.5 W@24 OHMS
VHF
UHF
R513
R515
ACCESSORY CONNECTOR
DC Level 0.3 - 0.4 V low
Not Placed
2.3 V
150 mV RMS (25 kHz) (Rx)
75 mv RMS (12.5 kHz) (Rx)
1.5 V
200 mV RMS
10 mV RMS (Tx)
0.1uF
C451
R496
3V
0
R480
NC
D470
R497
R460
5V_A
5V_B
Q520-1
IMX1
5
1
6
24K
C484
3V_A
3
NC
1000pF
C465
0.1uF
J491-3
24K
C459
R511
R463
100K
0.1uF
R490
6
5
7
8
4
5V_A
C518
5V
U480-2
J470-1
1
R485
47K
R451
680
R472
VDDDAC
11
VDDRC
45
VDDSYN
27
VOX
7
VR472
SQIN
9
SYN
28
TXR
T
N
36
TXSND
44
UIO
10
VDDA
1
VDDCP
32
VDDD
33
MOD
40
NC
26
PLCAP
8
25
PLCAP2
RXRTN
43
RXSND
39
SQCAP
12
SQDET
17
GNDDO
30
GNDRC
47
GNDSYN
23
HSIO
19
LCAP
24
LSIO
18
MICEXT
48
MICINT
46
GCB0
15
GCB1
14
GCB2
13
GCB3
35
GCB4
37
GCB5
38
GNDA
3
GNDD
31
CLK168
34
CSX
20
DACG
6
DACR
5
DACU
4
DAT A
22
DISC
2
F1200
29
30C53
U451
AUDIO
41
AUXTN
42
CHACT
16
21
CLK
C467
1200pF
U511
UMG5
2
6
4
1
3
16pF
2
5
6
3
1
4
C514
5V_B
Q470
2
R470
2.2K
0.1uF
C463
0.1uF
C480
R473
680
10uF
C492
150pF
0.1uF
C470
C473
0.1uF
0.1uF
C460
C462
470pF
C490
BK1005HM471
E453
4
3
INPOS
MODE
1
OUTNEG
5
OUTPOS
8
SVR
2
VCC
6
3
1
4
U490
TDA8541
GND
7
INNEG
Q472
2
5
6
3
1
8
4
24K
R492
U510-1
LM2904
2
C497
0.1uF
5V_B
R487
0
VR471
100K
R479
30K
R464
20V
MMBZ5250B
VR473
6
5
7
8
4
J491-4
4
U510-2
LM2904
J491-1
1
R517
C471
2.2uF
C479
150pF
C511
220pF
150pF
C474
E452
BK1005HM471
3V
5V
5V_B
R513
0.1uF
C464
R484
3.9K
1%
R255
5V_A
R476
100K
C481
330K
R493
100K
R519
NC
220K
R518
VR475
MMBZ5245B
15V
NC
R462
24K
150pF
C478
100K
R520
C461
1000pF
0.1uF
C458
Q481
1
3
2
3V_A
L471
3V_A
390nH
3V_A
NC
150K
R512
39pF
C499
0.1uF
C456
R522
100K
IMX1
Q520-2
2
4
3
U480-1
2
3
1
8
4
3
C466
NU
Q471
2
6
4
1
R499
NC
C496
1uF
1uF
C495
4.7uF
C453
470pF
D491
C489
C488
NU
470pF
6.8pF
R516
R495
C512
2
5.6K
R486
R488
330K
R471
5V_B
2.2K
220pF
R483
R498
C513
C457
0.1uF
R514
R521
NU
100K
3V_A
VR474
MMBZ5250B
20V
R489
C452
0.1uF
R481
R523
330
10K
C476
R474
C454
0.1uF
.022uF
M1
1
M2
2
M3
3
7
S1
S2
4
6
S3
S4
5
NC
J471
C482
.022uF
A_MOD_OUT
R477
C475
0.1uF
2.2K
R469
C472
R482
10
1
3
2
NC
R494
Q482
330K
.022uF
C455
R491
0
5V_A
D471
2.2K
R478
C498
1uF
C493
1000pF
C477
0.1uF
NC
C483
0.22uF
2.2uF
C494
180K
R475
2
6
4
1
3
R515
E451
BK1005HM471
UMG5
Q490
C519
1uF
3V
5V
OPT_MIC
VS_GAIN_SEL
DEMOD
ASFIC_CS
BATT_CHARGE
OPT_TX_AUD_RETURN
OPT_RX_AUD_SEND_DETECTOR
CH_ACT
VOX
PWR_SET
EXT_MIC_PTT
OPT_TX_AUD_FLAT_RETURN
SW_B+
16_8_MHZ
MOD_OUT
RESET
OPT_RX_AUD_RETURN
OPT_RX_AUD_SEND_UNMUTED
OPT_TX_AUD_SEND
SPI_DATA_OUT
LSIO
SPI_CLK
SQ_DET
BW_SEL
F1200
HSIO
VS_AUDIO_SEL
uP_CLK
SCI
BOOT_ENA
Figure 7-60. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C)