Motorola CP040 Detailed Service Manual page 259

UHF1 PCB 8486635Z03-O Schematic Diagrams
28
26
24
22
20
18
16
D3_3 V
14
12
SW_B +
10
8
6
4
2
C503
30
1000pF
32
J460-1
CONNECTOR
ACCESSORY/KEYPA D
27
25
23
21
19
17
15
13
1
11
9 C500
7
1000p F
5
3
1
29
31
C406
150p F
R503 10 0
S441
SWITCH
1 2
A1 B1
3 A2 B2 4
S442
SWITCH
1 A1 B1 2
S440
3 A2 B2 4
SWITCH
1
S443 8 PC0
PC3
SWITCH 2
PC1
4
1 A1 B1 2 PC2
C0
C0
3 A2 B2 4
C1
C1
9 7
Controller
SW_B
5V +3 V
VS_AUDIO_SEL
OPT_MI C
OPT_TX_AUD_FLAT_RETURN
OPT_TX_AUD_RETURN
OPT_TX_AUD_SEN D
AUDI O
OPT_RX_AUD_SEND_DETECTO R
OPT_RX_AUD_SEND_UNMUTED
OPT_RX_AUD_RETURN
VS_GAIN_SEL
3V
E500
BK1005HM47
C501
1uF
R502
100
R501
R504 100
100
R505
100
5V 3V
NC DISPL_COM_DATA_SEL
VS_RAC
OPT_DATA_READY
BACKLIGHT
KEYPAD_ROW
KEYPAD_COL
DISP_EN A
MICROPROCESSOR
OPT_EN A
VS_CS
VS_IN T
PTT
OPT_BUTTON_ 1
OPT_BUTTON_ 2
FREQ_SEL_ 3
FREQ_SEL_ 0
FREQ_SEL_ 1
FREQ_SEL_ 2
UHF1 (403-440 MHz) Controller Interconnect Schematic Diagram PCB No. 8486635Z03-O
CNTL_PWR_SET
PWR_SET PWR_SET
CNTL_DEMO D
DEMO D
DEMOD
CNTL_BW_SEL
BW_SEL BW_SEL
T
MOD_OUT
MOD_OUT
CNTL_16_8_MHZ
16_8_MHZ 16_8_MHZ
CNTL_SPI_CLK
SPI_CLK
CNTL_SPI_DATA_OUT
SPI_DATA_OUT
CNTL_SYNTH_C S
SYNTH_CS
CNTL_LOCK
LOCK
CNTL_RSSI
RSSI
TP40 3
CNTL_TX_EN A
TX_ENA
TP40 4
+
+
5V 5R
TP301
SYNTH_C S
LOCK
RSSI
RESET
TX_EN A BATT_CHARGE
RX_ENA RX_EN A
DC_REGULATION
VOLUME VOLUME
ON_OF F ON_OF F
TX_EN A
3-11
5T 3V D3_3V
CNTL_USWB+
USWB+
CNTL_5 V
5V
CNTL_5R
5R
CNTL_5T
5T
CNTL_3 V
3V