Motorola ASTRO SPECTRA Service Manual

10-2 Functional Block Diagrams and Connectors: Digital Spectra Functional Block Diagram (Models W3, W4, W5, W7, and W9)
February 3, 2003 6881076C20-E
10.1 Digital Spectra Functional Block Diagram (Models W3, W4, W5, W7, and W9)
Figure 10-1. Digital Spectra Models W3, W4, W5, W7, and W9 Functional Block Diagram
PRESELECTOR
MIXER
INJECTION
FILTER
RX
(COAXIAL CABLE)
RX BUFFER
DIVIDER
VCO
TX BUFFER
PREAMP
TX
VCO BOARD
FRONT-END RECEIVER BOARD
COAXIAL
CABLE
FROM
POWER
PA
TO
POWER
PA
VF VOLTAGE
SOURCE
MICROPROCESSOR
EEPROM
SERIAL BUS
INTERFACE
TO POSITIVE
TERMINAL OF
VEHICLE
BATTERY
LPF/
ANTENNA SW
TX
RX
RX
TX
ANTENNA
CONNNECTOR
HIGH-POWER PA
DC POWER
CABLE
TO POSITIVE
TERMINAL OF
VEHICLE
BATTERY
CHASSIS
GND
FUSE
ANTENNA
CONNNECTOR
MID/LOW-POWER PA
DIRECTIONAL
COUPLER/
DETECTOR
TX
RX
TX
DIRECTIONAL
COUPLER/
DETECTOR
LPF/
ANTENNA SW
TX
BUFFER
RIBBON
CABLE
RX
DC POWER
CABLE
CHASSIS
GND
FUSE
REAR ACCESSORY
CONNECTION
J2
P2
VIP
IN/OUT
IGNITION
CABLE
FUSE
DASH MOUNT MODELS
RX
SERIAL BUS
INTERFACE
HIGH VOLTAGE
VF DRIVER
MICRO-
PROCESSOR
VACUUM
FLOURESCENT
8 CHARACTER
SPEAKER
REMOTE MOUNT MODELS
FUSE
FUSE
BATT CABLE (GRN)
IGN. CABLE (ORG)
VIP IN/OUT
REMOTE
INTERCONNECT
BOARD
HANDHELD
INTERCONNECT
BOARD
DASH
INTERCONNECT
BOARD
W3 HANDHELD CONTROL HEAD
SWITCHES
MICROPHONE
REMOTE
INTERCONNECT
BOARD
CONTROL HEAD (REMOTE MOUNT)
(W5/W7 PUSHBUTTON AND W4 ROTARY MODELS)
8-CHARACTER
VACUUM
FLOURESCENT
DISPLAY
MICRO-
PROCESSOR
CONTROL HEAD (DASH MOUNT)
(W5/W7 PUSHBUTTON AND W4 ROTARY MODELS)
HIGH VOLTAGE
VF DRIVER
SERIAL BUS
INTERFACE
DISPLAY
DRIVER
DISPLAY
VACUUM
FLUORESCENT
11-CHARACTER
HIGH VOLTAGE
VF DRIVER
CONTROL HEAD (REMOTE MOUNT)
(W9 PUSHBUTTON MODEL)
MID-
POWER
LOW-POWER
RIBBON
CABLE
FROM
COMMAND
BOARD
FROM
VCO
BOARD
TO
FRONT-END
RECEIVER
BOARD
COAXIAL
CABLE
COAXIAL
CABLE
TO
FRONT-END
RECEIVER
BOARD
FROM
VCO
BOARD
FROM
COMMAND
BOARD
TO
COMMAND
BOARD
DSP
SUPPORT
CIRCUIT
MODULE
MODULATION OUT
2.4MHz REF
DIGITAL RX IN
SBI
DIGITAL SIGNAL
PROCESSOR
(DSP)
RAM ROM
DATA IN
DATA OUT
ENCRYPTION
BOARD
(OPTIONAL)
MICROCONTROL
UNIT
(MCU)
AND
SUPPORT LOGIC IC
(SLIC)
RAM
ROM
EEPROM
MBEPF-23553-B
4 POLE
XTAL
SYNTHESIZER
PRESCALER
16.8MHz
XTAL
D/A
IC
AUDIO
PA
SERIAL
BUS
INTERFACE
POWER
CONTROL/
REGULATOR
REF
TUNE
INPUT
MOSI
INPUT
MOSI
TO
POWER
PA
COMMAND BOARD
TO
INTERCONNECT
BOARD OR
DIRECTLY
TO W9
CONTROL
HEAD
VOCON BOARD
FROM
INTERCONNECT
BOARD
RF BOARD
IF AMP
MIXER
L/C
L/C
450Khz
FILTER
109.2MHz
ABACUS
IC
REF
2.1MHz
LO
D OUT
D OUT
SBI
ODC
REF
TUNE
MOSI

Motorola ASTRO SPECTRA Specifications

General

Brand	Motorola
Model	ASTRO SPECTRA
Category	Radio
Language	English