Radio Interconnect Diagram - Motorola ASTRO Digital Saber Service Manual

ANTENNA
UNIVERSAL CONNECTOR
SWITCH
EXTERNAL ANTENNA
RX
TX
RF
RX/TX RX FIRST SECOND
AMP
SWITCH PRESELECTOR PRESELECTOR
TX
DC CONTROL
(VHF AND UHF ONLY)
RF POWER AMP
DIRECTIONAL
TX TX
COUPLER/
DETECTOR
TX CONTROL
CIRCUIT
MODULE
TRANSCEIVER BOARD
CONTROL TOP
CONTROL TOP/
PTT FLEX
(INDICATOR LED; ON/OFF VOLUME, MODE/ZONE,
PTT, AND PROGRAMMABLE SWITCHES AND BUTTONS)
DISPLAY FLEX
DISPLAY
SPKR/MIC FLEX
KEYPAD
TO UNIVERSAL
DISPLAY/KEYPAD
CONNECTOR
ASSEMBLIES
SPEAKER
MICROPHONE
MIXER
1ST
2-POLE
IF
IF
CRYSTAL
AMP
FILTER
INJECTION
FILTER OSCILLATOR
VCO CONTROL
RX
VCO FEEDBACK
VCO/
BUFFER PROGRAMMABLE BUS CONTROL
DC CONTROL (VHF AND UHF ONLY)
D/A
DC CONTROL
CIRCUIT
MODULE
J901
J601
MICROCONTROL
UNIT
(MCU)
J701
AND
SUPPORT LOGIC IC
(SLIC)
J201
RAM ROM EEPROM
AUDIO
PA
VOCON (VOCODER/CONTROLLER) BOARD
DIGITAL
2-POLE
BACKEND
CRYSTAL
CIRCUIT
FILTER
MODULE
J1
SECOND
LOCAL
2.1MHz
SYNTHESIZER/
PRESCALER
16.8MHz
REFERENCE
MATING
OSCILLATOR
PLUG
16.8MHz
J401
DSP
SUPPORT
CIRCUIT
MODULE
J801
ENCRYPTION
DIGITAL SIGNAL
BOARD
PROCESSOR
(DSP)
(OPTIONAL)
RAM ROM
13-2
Transceiver Board
Integrated Circuit Modules
U101
CATH 1
V CON
ALC
INT CAP OUT
62U72 X
ANODE 2
XXYY X
REF V RT BIAS
RX 1
THERM TX 2
TX 5V CATH 2
MAEPF-24372-O
U102
CE*
SC4
D/A
SC3
RX_D/A
62U70 X
SC2
XXYY X
TX_D/A
SC1
R/T SW2
MAEPF-24373-O
U204
VMULT 4
VMULT 3
VMULT 2
VMULT 1
FREFOUT
FRAC N SYNTH
DC5
25U31 0
A/D BYPASS
XXYY 0
XTAL 1
XTAL 2
A/D BYPASS
MAEPF-24374-O
U401
VCCP
LOX
LO
GND0
MOX
57W20
MO
E28X
T1C2
T1C
9307
T1X
T1
T2C
T2X
MBEPF-24903-O T2
MAEPF-24375-O

Radio Interconnect Diagram

TX 1
GND
VCP
ADAPT_SW
IADAPT
IOUT
MODOUT
CPBIAS 1
CPBIAS 2
TEST 2
REF1
SUB
SSL
OT
OTBY
OB
OGND
OVCC
VSSR
VDD
DGND
VDDH
ODC