Motorola CP040 Detailed Service Manual page 67

Controller Schematics
D3_3V
SW_B+
C503
1000pF
J460-1
ACCESSORY/KEYPAD
CONNECTOR
C403
C504
100pF 1000pF
C402 C408
C505 C506 C507
1000pF
1000pF 1000pF 1000pF 1000pF
3V
28 27
26 25
24 23
E500
BK1005HM471
22 21
20 19
18 17 C500 C501
1000pF 1uF
16 15
14 13
12 11
10 9
8 7
6 5
4 3
2 1
30 29
32 31
C406
C405
100pF 100pF
C404
C409 C407
1 A1 B1 2
1000pF
1000pF 1000pF
3 A2 B2 4
S441
SWITCH
1 A1 B1 2
3 A2 B2 4
S442
S440
SWITCH 1
SWITCH PC0
2
PC1
8 4
PC3 PC2
C0
C0
1 A1 B1 2 C1
C1
3 A2 B2 4
9 7
S443
SWITCH
SW_B+ 5V 3V
OPT_MIC
OPT_TX_AUD_FLAT_RETURN
OPT_TX_AUD_RETURN
OPT_TX_AUD_SEND
OPT_RX_AUD_SEND_DETECTOR
OPT_RX_AUD_SEND_UNMUTED
AUDIO
OPT_RX_AUD_RETURN
VS_AUDIO_SEL
VS_GAIN_SEL
R502
100
R504
100
R501
100
R505
100
R503
100
5V SW_B+ D3_3V 3V
VS_RAC
OPT_DATA_READY
BACKLIGHT
KEYPAD_ROW
KEYPAD_COL
NC DISPL_COM_DATA_SEL
DISP_ENA
OPT_ENA
VS_CS
MICROPROCESSOR
VS_INT
PTT
OPT_BUTTON_1
OPT_BUTTON_2
FREQ_SEL_0
FREQ_SEL_1
FREQ_SEL_2
FREQ_SEL_3
VHF1/2 (136-162MHz and 146-174MHz) Controller Interconnect Schematic Diagram (PCB 8486769Z04-C/05-D)
PWR_SET
PWR_SET
CNTL_PWR_SET
DEMOD DEMOD
CNTL_DEMOD
BW_SEL
BW_SEL
CNTL_BW_SEL
MOD_OUT
MOD_OUT
CNTL_MOD_OUT
16_8_MHZ
16_8_MHZ
CNTL_16_8_MHZ
SPI_CLK
CNTL_SPI_CLK
SPI_DATA_OUT
CNTL_SPI_DATA_OUT
SYNTH_CS
CNTL_SYNTH_CS
LOCK
CNTL_LOCK
RSSI
TP403 CNTL_RSSI
TX_ENA
TP404 CNTL_TX_ENA
USWB+ SW_B+ 5V 5R 5T 3V
TP301
SYNTH_CS
LOCK
RSSI
RESET
TX_ENA BATT_CHARGE
RX_ENA RX_ENA
DC_REGULATION
VOLUME VOLUME
ON_OFF ON_OFF
TX_ENA
3-9
D3_3V
USWB+
CNTL_USWB+
5V
CNTL_5V
5R
CNTL_5R
5T
CNTL_5T
3V
CNTL_3V