Motorola CP040 Detailed Service Manual page 63

Controller Schematics
C512
6.8pF
R512
150K
R511
100K
2 8
DEMOD
1
3
4
5V_A
U510-1
LM2904
C511
220pF
VHF UHF
R518
2.3 V
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
VOX
BW_SEL
CH_ACT
SQ_DET
LSIO
HSIO
ASFIC_CS
SPI_CLK
SPI_DATA_OUT
150 mV RMS (25 kHz) (Rx)
75 mv RMS (12.5 kHz) (Rx)
R516
NU
C514
16pF
R514
100K
5V_A
1
6
R513
6 8
R515
C518
7
0.1uF
5
4 C460
0.1uF
U510-2
C513 LM2904
R521
220pF
R517
3V_A
C452
C451 0.1uF
0.1uF
C453
5V_A
4.7uF
C454
0.1uF
C455
.022uF
13 48
GCB2 MICEXT
14 47
GCB1 GNDRC
15 46
GCB0 MICINT
16 45
CHACT VDDRC
17 44
SQDET TXSND
18 43
LSIO 30C53 RXRTN
19 42
HSIO U451 AUXTN
20 41
CSX AUDIO
21 40
CLK MOD
22 39
DATA RXSND
23 38
GNDSYN GCB5
24 37
LCAP GCB4
NC
C456 C457
0.1uF 0.1uF
C458
0.1uF
R451
3V 3V_A
47K
114 mV (RF)
3V
E451
BK1005HM471
C459
0.1uF
5V_B
5V 5V_A
E452
BK1005HM471
5V
E453
BK1005HM471
C497
0.1uF
R523
10K
R522
100K 4
2
3
Q520-2
IMX1
5
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
1000pF
3V
R460
24K
C462 C463
0.1uF 0.1uF
C467
1200pF R474
330
R462
24K
R464 R463
30K 24K
C464 C465 C471
3V_A
0.1uF
1000pF 2.2uF
NC
200 mV RMS
MOD_OUT
A_MOD_OUT
NC
C466
NU
16_8_MHZ
F1200
145 mV RMS
uP_CLK
1.5 V
5V_B
R487
0
5V_B
R481
R482
C483
2 8
0.1uF R491
C481
.01uF 1
Not_Placed:NU 3
U480-1
4 R484
2.2K
C482
Not_Placed:NU
2 3
C484
.033uF R490
Q481 Not_Placed:NU 2.2K
R485
Not_Placed:NU
Not_Placed:NU 3
1
1
R483
R486
2
Q482
1 6
5V_B 2
3 4 1 6
Q490
R488
UMG5
330K 2
3 4
R495
5.6K
C490
470pF
U511
UMG5
3 V (UNSQ)
R470
2.2K
VR471
3V_A
NC
R472
1 4
680
1.5 V
2
D471 R471
C470
0.1uF 2.2K
VR472
6 3
NC
5V
C477
0.1uF
R255
3.9K
1%
BATT_CHARGE
1 4
D470
R475 L471
180K 390nH
2 5
R476 R477
100K 2.2K
VR473
NC
MMBZ5250B
6 3
Q470 20V
C472 C474 C473
0.1uF 150pF 150pF
VR475
NC
MMBZ5245B
15V
C475
.022uF
R478
0 V (Rx)
2.2K
EXT_MIC_PTT
3 V (Tx)
C476 C478
.022uF
150pF
R479
100K
7.5 V
SW_B+
C493 R494
C494
330K
1000pF
2.2uF
3.5V (UNSQ)
DC Level 0.3 - 0.4 V low
C499
C488
Supply = 7.42
82pF
470pF
1/2 Supply = 3.22
C480
R493 6
0.1uF
330K 1
MODE
3 5
INPOS OUTNEG 3.5V (UNSQ)
2 8
R492
SVR OUTPOS
4
INNEG
0 24K
C479
7
C489
U490
470pF
150pF TDA8541
C492
10uF R497 R496
10K
Not_Placed:NU
8 6
7
5
R498 4
D491
U480-2
C495
NC
1uF
0.15 V (UNSQ)
C498
1uF
3-5
R480
0
R473
680
5
Q472
RESET
1 6
2
BOOT_ENA
3 4
Q471
OPT_MIC
10 mV RMS (Tx)
S2
4
S4
5
SCI S3
6
S1
VR474
7
NC
MMBZ5250B
M2
20V
2
M3
3
M1
1
1 J471
ACCESSORY CONNECTOR
2
J470-1
MICROPHONE CONNECTOR
1
2
J491-1
INTERNAL SPEAKER
3 J491-3
4 J491-4
R469
10
3.46 V RMS (Rx)(0.5 W@24 OHMS
5V_B
R499
C496
1uF
R489
Audio Circuit Schematic Diagram (VHF)