Digital Spectra Plus Functional Block Diagram (Models W3, W4, W5, W7, And W9); Figure 10-2. Digital Spectra Plus Models W3, W4, W5, W7, And W9 Functional Block Diagram - Motorola ASTRO SPECTRA Service Manual

Functional Block Diagrams and Connectors: Digital Spectra Plus Functional Block Diagram (Models W3, W4, W5, W7, and W9)

10.2 Digital Spectra Plus Functional Block Diagram (Models W3, W4, W5, W7, and W9)

HIGH-POWER PA
ANTENNA
CONNNECTOR
TX RX
DIRECTIONAL
COUPLER/
DETECTOR
TX RX
COAXIAL
CABLE
TO
LPF/
RX
FRONT-END
ANTENNA SW
RECEIVER
BOARD
COAXIAL
CABLE
FROM
VCO
BOARD
RIBBON
CABLE
FROM
COMMAND
BOARD
FUSE
DC POWER
CABLE BATT CABLE (GRN)
CHASSIS
IGN. CABLE (ORG)
GND
TO POSITIVE
TERMINAL OF
VEHICLE
BATTERY
REMOTE MOUNT MODELS
VACUUM
VF VOLTAGE SERIAL BUS
FLUORESCENT
SOURCE
INTERFACE
11-CHARACTER
HIGH VOLTAGE
MICROPROCESSOR
VF DRIVER
EEPROM
CONTROL HEAD (REMOTE MOUNT)
(W9 PUSHBUTTON MODEL)
6881076C20-E
MID/LOW-POWER PA
ANTENNA
CONNNECTOR
TX RX
LPF/ RX
ANTENNA SW
TX
DIRECTIONAL
COUPLER/
DETECTOR
LOW-POWER
MID-
POWER
TX
BUFFER
RIBBON
CABLE
VIP
J2
REAR ACCESSORY
IN/OUT
CONNECTION
P2
FUSE
FUSE
DC POWER
CABLE
IGNITION
CABLE
DASH MOUNT MODELS
CHASSIS COMMAND
GND
TO POSITIVE
TERMINAL OF
VEHICLE
BATTERY
REMOTE
INTERCONNECT INTERCONNECT
BOARD
FUSE
FUSE
MICROPHONE
SPEAKER
VIP IN/OUT
REMOTE
INTERCONNECT
BOARD
VACUUM SERIAL BUS
SERIAL BUS
FLOURESCENT INTERFACE
INTERFACE
8 CHARACTER
HIGH VOLTAGE MICRO-
PROCESSOR
VF DRIVER PROCESSOR
CONTROL HEAD (REMOTE MOUNT) CONTROL HEAD (DASH MOUNT)
(W5/W7 PUSHBUTTON AND W4 ROTARY MODELS) (W5/W7 PUSHBUTTON AND W4 ROTARY MODELS)

Figure 10-2. Digital Spectra Plus Models W3, W4, W5, W7, and W9 Functional Block Diagram

TO
FRONT-END
RECEIVER
BOARD
FRONT-END RECEIVER BOARD
MIXER
FROM
POWER PRESELECTOR
PREAMP
PA
RX
(COAXIAL CABLE)
INJECTION
FILTER
FROM
VCO
BOARD
FROM
TO TX
COMMAND
POWER TX BUFFER RX BUFFER
BOARD
PA
DIVIDER VCO
VCO BOARD
TO
BOARD
TO
POWER
PA
DASH HANDHELD
INTERCONNECT
BOARD BOARD
8-CHARACTER
VACUUM
FLOURESCENT DISPLAY
DISPLAY
DISPLAY DRIVER
MICRO- HIGH VOLTAGE
SWITCHES
VF DRIVER
W3 HANDHELD CONTROL HEAD
IF AMP MIXER
COAXIAL
CABLE
4 POLE 109.2MHz
XTAL
L/C
450Khz
FILTER ABACUS
IC
L/C
REF
2.1MHz
LO
16.8MHz
SYNTHESIZER PRESCALER
XTAL
REF
TUNE
MOSI
RF BOARD
REF
MOSI
TUNE
INPUT
INPUT
POWER
D/A AUDIO
CONTROL/
IC PA
REGULATOR
COMMAND BOARD
SERIAL
BUS
INTERFACE
FROM
INTERCONNECT
BOARD
MOSI
CODEC
KRSIC
DUAL-CORE
PROCESSSOR
(MCU AND DSP)
ADDAG
DSP SUPPORT IC'S
SRAM FLASH
VOCON BOARD
10-3
D OUT
D OUT
SBI
ODC
TO
INTERCONNECT
BOARD OR
DIRECTLY
TO W9
CONTROL
HEAD
2.4MHz REF
DIGITAL RX IN D OUT
DIGITAL RX IN D OUT
SBI
MODULATION OUT
DATA IN ENCRYPTION
BOARD
DATA OUT
(OPTIONAL)
MBEPF-27239-O
February 3, 2003