Circuito Principal Vhf2 (146-174 Mhz) (Hoja 2 De 2) - Motorola EM200 Serie Manual De Servicio

Esquemas eléctricos de la tarjeta de circuito impreso 8488977U01 del radio VHF 1-25 W banda 2 (rev. P9)
(SOURCE) (SOURCE)
3V
SPI_MOSI 3V D3_3V
SPI_CLK
ASFIC_CS
CH_ACT
SQ_DET
LSIO
HSIO
F1200
uP_CLK
VS_AUDIO_SEL
RESET
VS_MIC
TX_AUDIO_SEND_OPT_BRD
TX_AUDIO_RETURN_OPT_BRD
POST_LIMITER_FLAT_TX_AUDIO_RETURN_OPT_BRD
DETECTOR_AUDIO_SEND_OPT_BRD
UNMUTED_RX_AUDIO_SEND_OPT_BRD
RX_AUDIO_RETURN_OPT_BRD
HANDSET_RX_AUDIO_CH
MIC_AUDIO_CH
5V_CH
VOL_INDIRECT
VSTBY
ONOFF_SENSE
EMERGENCY_SENSE
VOX
BATT_SENSE
SPKR-
SPKR+
EXTERNAL_MIC_AUDIO_ACCESS_CONN
IGNITION
FLAT_TX_AUDIO_INPUT_ACCESS_CONN
RX_AUDIO_OUTPUT_ACCESS_CONN
EMERGENCY_ACCES_CONN
FILT_SW_B+
(SOURCE)
9V
(SOURCE)
(SOURCE)
5V
D3_3V
5V 9V FILT_SW_B+
COMP_B+
PA_BIAS
PWR_SET
PA_CURRENT
DC & AUDIO
16.8MHz
MOD_OUT
DEMOD
BW_SEL
B+
5V 3V 9R
5V 3V 9R
SPI_CLK
SPI_MOSI
SYNTH_CS
SYNTH_LOCK
16.8MHz
(SOURCE)
MOD_IN
VCC
9R 5V 9V
9R 5V 9V 3V
RSSI
RX_EN
DEMOD
BW_SEL
LOC_DIST
CONTACTS FOR PA CLIP
M9
PLTD_NUT
P2-1
1
P2-2
TP2
1
2
TEST_POINT
TP3
1 DC Connector
TEST_POINT
TX_EN
RX_EN
9V
FILT_SW_B+
COMP_B+
PA_BIAS
PWR_SET
PA_CURRENT
TX_INJ
RX
DET_VFWD
FILT_SW_B+
DET_VRVS INTEGRATOR INTEGRATOR
TX_INJ
DET_VRVS
DET-VFWD
BOARD HOLES
M1 M2 M5
PLTD_HOLE3_5x7_0 PLTD_HOLE3_5x6_0_TRIMMED PLTD_HOLE3_5x7_0_TRIMMED
M3 M4 M7
PLTD_HOLE3_5x7_0 PLTD_HOLE3_5x7_0_TRIMMED PLTD_HOLE3_5x7_0_TRIMMED
RX_INJ
RX_INJ RX
M8
PLTD_HOLE3_5x7_0_TRIMMED
HOLES FOR PA SHIELD
M101 M102
PEDS FOR GND CONTACTS
PLTD_HOLE1_4X1_8 PLTD_HOLE1_4X1_8
M103 M104
PLTD_HOLE1_4X1_8 PLTD_HOLE1_4X1_8
73D02968C63-0
SHEET 4 OF 8

Circuito principal VHF2 (146-174 MHz) (hoja 2 de 2)

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