Motorola CP040 Detailed Service Manual page 421

UHF3 PCB 8416847H01-A/H02-B Schematic Diagrams
C512
6.8pF
R511
100K
2
DEMOD
3
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
ASFIC_CS
SPI_DATA_OUT
R516
NU
C514
16pF
R512 R514
150K 100K
5V_A
8
R513
1 6 8
R515 C518
7
0.1uF
4
5
4 C460
0.1uF
U510-2
C513 LM2904
R521
220pF
100K
R517
VOX
3V_A
C452
C451 0.1uF
0.1uF
C453 5V_A
4.7uF
10V
C455
.022uF
BW_SEL
CH_ACT
13
GCB2 MICEXT
14
GCB1 GNDRC
15
SQ_DET GCB0 MICINT
16
CHACT VDDRC
17
SQDET TXSND
18
LSIO LSIO 30C53 RXRTN
19
U451
HSIO AUXTN
20
CSX AUDIO
21
HSIO
CLK MOD
22
DATA RXSND
23
GNDSYN GCB5
24
LCAP GCB4
SPI_CLK
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
R520
100K
OPT_RX_AUD_SEND_UNMUTED
OPT_TX_AUD_FLAT_RETURN
OPT_TX_AUD_SEND
OPT_TX_AUD_RETURN
3V_A
C461
4.7uF
3V
R460
24K
C462 C463
0.1uF 0.1uF
C467
R474
C454 1200pF
330
0.1uF R462
24K
R464 R463
30K 24K
C464 C465
C471
3V_A
0.1uF 1000pF 2.2uF
48
NC
47
46
45
44
43
42
41
40
MOD_OUT
39
A_MOD_OUT
38
NC
37
C466
NU
16_8_MHZ
F1200
uP_CLK
5V_B
R487
0
5V_B
R481
100K
R482
330K
C483
2 8
0.1uF R491
C481
.01uF 1
Not_Placed:NU 3
U480-1 0
4 R484
LM2904 2.2K
C482 Not_Placed:NU
2 3 .01uF
C484
.033uF R490
Q481 Not_Placed:NU 2.2K
R485
Not_Placed:NU
Not_Placed:NU 3
1 100K
1
R483
R486 150K
2
100K
Q482
1 6
5V_B
2
3 4 1 6
Q490
R488
UMG5
330K 2
3 4
R495
5.6K
C490
470pF
U511
UMG5
UHF3 (465-495 MHz) Audio Circuitry Schematic Diagram PCB No. 8416847H01-A/H02-B
R470
2.2K
VR471
3V_A
NC
R480
0
R472 R473
1 4
680 680
2 5
D471 R471
C470
2.2K
0.1uF VR472
6 3
Q472
NC
1
5V
2
C477
0.1uF
R255
3.9K
3
1%
BATT_CHARGE
0662057U91
1 4
D470
R475 L471
180K 390nH
2 5
R476 R477
100K 2.2K
VR473
NC
MMBZ5250B
6 3
Q470 SCI
C472 C474 C473 20V
0.1uF 150pF 150pF
VR474
MMBZ5250B
VR475
MMBZ5245B NC
15V
C475
.022uF
1
R478
2.2K
EXT_MIC_PTT
2
C476 C478
$V
.022uF 150pF
J470-1
MICROPHONE CONNECTOR
R479
100K
SW_B+
C493 R494
C494
330K
1000pF
2.2uF
$V
DC Level 0.3 - 0.4 V low
C499
C488
82pF Supply = 7.42
470pF
1/2 Supply = 3.22
C480 R469
6
R493
0.1uF 10
330K
1
MODE
3 5
INPOS OUTNEG
2 8
R492
SVR OUTPOS
4
INNEG
24K
C479
7
C489
U490
470pF
150pF TDA8541
C492
10uF R497 R496
10K
1MEG
5V_B
Not_Placed:NU
8 6
R499
7 270K
5
R498 4
D491
47K
U480-2
C495
NC LM2904
1uF R489
91K
C498
1uF
3-31
RESET
6
BOOT_ENA
4
Q471
OPT_MIC
S2
4
S4
5
S3
6
S1
7
NC
20V M2
2
M3
3
M1
1
J471
ACCESSORY CONNECTOR
1
2
J491-1
INTERNAL SPEAKER
3 J491-3
4 J491-4
C496
1uF