Motorola MTX series Theory/Troubleshooting Manual

3
5V
Regulator
U709
U705
Micro C
ASF IC
U701
U706
Audio PA
5V
SB+
Controller Board
Battery
7.5V
+
B+
PA Module
5V
Regulator
VCOB IC
ALC
T5
L105
CR108
RX
L122
L121
Vcc
U105
U202
T5
U201
U101
Harmonic
Filter
RF Amp
Mixer
Q107
R5
Q105
5V
5V
Regulator
U103
R/T
SB+
Synth
Ref Osc
IF IC
D/A IC
Transceiver Board
CR109
5V
S
Out
Fuse
1 Amp
Universal Connector
Front Cover
Flex
Jumper Flex
Controls
Flex
Opt B+
SB+
SB+
SB+
Raw B+
B+
SB+
On
Off
5V
5V
Regulator
U709
U705
Micro P
ASF IC
U701
U706
Audio PA
5V
SB+
Controller Board
Battery
7.5V
+
PA Module
5V
Regulator
VCOB IC
L105
CR108
Vss
U105
U202
T5
U101
RF Amp
Mixer
R5
Synth
Ref Osc
IF IC
D/A IC
Transceiver Board
CR109
5V
S
Out
Fuse
1 Amp
Universal Connector
Front Cover
Flex
Jumper Flex
Controls
Flex
Opt B+
SB+
SB+
Raw B+
Raw B+
MECH SB+
On
Off
ALC
FLASH
EEPROM
SLIC
SRAM
HEAR/
CLEAR
*U601
Q702
SB+
U712
Electrical
Switch
Expansion
Board
Q101
VCO
T5
Q108
C138
R5
RX
Q703
* U601 HEAR/CLEAR used on 900 MHz radios only.
BATT B+
B+ CNTL
Figure 1A. DC Power Distribution Block Diagram (Closed Architecture Controller and VHF or UHF Transceiver)
Figure 1B. DC Power Distribution Block Diagram (Open Architecture Controller and 800 or 900MHz Transceiver)

Motorola MTX series Specifications

General

Brand	Motorola
Model	MTX series
Category	Portable Radio
Language	English