Motorola CP040 Detailed Service Manual page 77

Controller Schematics
C512
6.8pF
R512
150K
R511
100K
2 8
DEMOD
3
4
5V_A
U510-1
LM2904
C511
220pF
VHF UHF
R518
220K
R513 Not Placed 100k
R515 Not Placed 0
R516 Not Placed Not Placed
R519 C519
100K 1uF
R517 0 Not Placed
VS_AUDIO_SEL
VS_GAIN_SEL
PWR_SET
BW_SEL
CH_ACT
SQ_DET
LSIO
HSIO
ASFIC_CS
SPI_CLK
SPI_DATA_OUT
R516
NU
C514
16pF
R514
100K
5V_A
R513
1 6 8
R515 C518
7
0.1uF
5
4 C460
0.1uF
U510-2
C513 LM2904
220pF
R517
VOX
3V_A
C452
C451 0.1uF
0.1uF
C453 5V_A
4.7uF
10V
C455
.022uF
13
GCB2
14
GCB1
15
GCB0
16
CHACT
17
SQDET
18
LSIO 30C53
19
HSIO U451
20
CSX
21
CLK
22
DATA
23
GNDSYN
24
LCAP
NC
C456 C457
0.1uF 0.1uF
C458
0.1uF
R451
3V 3V_A
47K
3V
E451
BK1005HM471
C459
0.1uF
5V_B
5V 5V_A
E452
BK1005HM471
5V
E453
BK1005HM471
C497
0.1uF
R523
100K
R522
4
100K
2
3
Q520-2
IMX1
1
5
6
Q520-1
IMX1
OPT_RX_AUD_SEND_DETECTOR
OPT_RX_AUD_RETURN
R521
R520
100K 100K
OPT_RX_AUD_SEND_UNMUTED
OPT_TX_AUD_FLAT_RETURN
OPT_TX_AUD_SEND
OPT_TX_AUD_RETURN
3V_A
C461
4.7uF
R460
24K
C462 C463
0.1uF 0.1uF
C467
C454 1200pF
0.1uF R462
24K
R464 R463
30K 24K
C464
C465
3V_A
0.1uF 1000pF
48
MICEXT NC
47
GNDRC
46
MICINT
45
VDDRC
44
TXSND
43
RXRTN
42
AUXTN
41
AUDIO
40
MOD_OUT
MOD
39
RXSND
A_MOD_OUT
38
GCB5 NC
37
GCB4
C466
NU
16_8_MHZ
F1200
uP_CLK
5V_B R487
0
5V_B
R481
100K
R482
330K
C483
2 8
C481 0.1uF
1
.01uF
Not_Placed:NU 3
U480-1 R484
4
LM2904 2.2K
C482 Not_Placed:NU
2 3 .01uF
C484
.033uF
Q481 Not_Placed:NU
R485
Not_Placed:NU 3
1 100K
1
R483
R486
150K
100K 2
Q482
1 6
5V_B 2
3 4 1
Q490
R488
UMG5
330K 2
3
C490
470pF
U511
UMG5
UHF3 (465-495MHz) Audio Circuitry Schematic Diagram (PCB 8416847H01-A/02-B)
R470
2.2K
VR471
NC
R472
680
D471 R471
C470
2.2K
0.1uF VR472
NC
3V
5V
R474 R255
3.9K
330
1%
BATT_CHARGE
0662057U91
1 4 D470
R475 L471
C471
180K 390nH
2.2uF
2 5
R476 R477
100K 2.2K
VR473
NC
MMBZ5250B
6 3
C472 Q470 C474 C473 20V
0.1uF 150pF 150pF
VR475
MMBZ5245B NC
15V
C475
.022uF
R478
2.2K
EXT_MIC_PTT
C476
.022uF
R479
100K
SW_B+
C493 R494
C494
1000pF 330K
2.2uF
$V
DC Level 0.3 - 0.4 V low
C499
C488
82pF Supply = 7.42
470pF
1/2 Supply = 3.22 C480
6
R493
0.1uF
330K
1
MODE
3 5
INPOS OUTNEG
2 8
R491 R492
SVR OUTPOS
4
INNEG
0 24K
C479
7
C489
U490
470pF
150pF TDA8541
R490
C492
2.2K
10uF R497
Not_Placed:NU
1MEG
8
7
R498 4
47K D491
U480-2
C495
6 NC LM2904
1uF
4
R495
5.6K
C498
1uF
3-19
3V_A
R480
0
R473
1 4
680
2 5
6 3
Q472
RESET
1 6
2
C477
0.1uF
BOOT_ENA
3 4
Q471
OPT_MIC
S2
4
S4
5
SCI S3
6
S1
VR474 7
NC
MMBZ5250B
M2
20V
2
M3
3
M1
1
1 J471
ACCESSORY CONNECTOR
2
C478
$V
150pF
J470-1
MICROPHONE CONNECTOR
1
2
J491-1
INTERNAL SPEAKER
3 J491-3
4 J491-4
R469
10
R496
10K
Not_Placed:NU 5V_B
6
R499
C496
270K
1uF
5
R489
91K