Motorola APX 7000 Detailed Service Manual

3-6 Theory of Operation: Transceiver Board
Figure 3-8. Transceiver (UHF2 / VHF) Block Diagram (Power and Control Omitted)
3.1.1 Interconnections
This section describes the various interconnections for the transceiver board.
3.1.1.1 Battery Connector M101
Battery connector M101 solders to the transceiver printed circuit board. The connector has 5 gold
plated contacts that mate with the battery, two contacts for positive, two for negative and one for the
Dig_Battery_Data. Signal descriptions are in Table 3-1.
Table 3-1. Battery Connector J3
Pin No. Signal Description
1 DC_BATT Battery positive terminal, nominally 7.5 Vdc
2 Dig_Battery_Data Battery status, from battery to VOCON
3 Ground Battery negative terminal, tied to PCB ground
FGU
Transmitter
Receiver
SP3T
SP2T
Aux
GPS Di-
Plexer
Abacus
2nd
LO
Digital
RF Atten
Switch
Driver
Amplifier
SP3T Rf Switch
Harmonic
Filters
coupler
Rev
Power
Detector
Log
Amp
FET
VHF
FET
UHF2
TRIDENT IC
LOGIC
EXPANDER
LOOP
FILTER
PRESCALAR
BUFFER
RX SSI Data
16.8MHz
BUFFER
PRE
BUFFER
÷
2
TX LO
RX LO
TX
BUFFER
2
ND
HARMONIC FILTER
VHF DIVIDE-BY-2
UHF2 TX
VHF/UHF2 RX
*
*
16.8MHz
RX SSI Clock
RX SSI Frame Sync
Indicates Sub-shield
VHF
mixer
Main antenna
Aux port
UHF2
VHF TX

Motorola APX 7000 Specifications

General

Digital Technology	P25 Phase 1 and Phase 2
Emergency Button	Yes
Frequency Range	136-174 MHz (VHF), 380-470 MHz (UHF Range 1), 450-520 MHz (UHF Range 2), 764-870 MHz (700/800 MHz)
Display	Color LCD
Encryption	AES, DES
Water Resistance	IP67
GPS	Yes
Bluetooth	Yes
Operating Temperature	-30°C to +60°C
Weight	391 g (with standard battery)