Technical Manual
Table Of Contents
- Front Cover
- Foreword
- Table of Contents
- Safety
- ASTRO Digital XTS 3000 Model Chart (“A” Models)
- Portable Radio Model Numbering System
- ASTRO Digital XTS 3000 Model Chart (”B” Models)
- ASTRO Digital XTS 3000 R (Ruggedized) Model Chart
- ASTRO Digital XTS 3000 R (Ruggedized) Yellow Model Chart
- Model History Tables
- Glossary
- Introduction
- General Overview of an ASTRO Digital XTS 3000 Radio
- Radio Power
- VHF/UHF Transceiver Board Detailed Theory of Operation
- 800MHz Transceiver Board Detailed Theory of Operation
3-5
5V Regulator
U710
Controller
Board
To Vocoder
Board
To Vocoder
Board
Keypad
Module
Display
Module
Controls Flex
On/Off Switch
On
Off
S1
B+_Sense
UNSW_B+
SW_B+
Secure
Module
UNSW_B+
UNSW_B+ SW_B+
P201
To/From
RF Board
Switch
Q106
SW_B+
Audio PA
U718
Q105
+5V Digital
+5V Analog
B+_CNTL
5V Regulator
U709
SLIC V
U702
32K x 8
EEPROM
U706
1M x 8
FLASH
U727
32K x 8
SRAM
U705
HC11F1
MCU
U701
MAEPF-25996-O
Figure 4 B+ Routing for Controller Board