3-54
Theory of Operation
: Controller
3.2.6.3 Intelligent Lighting
The APX 7000/ APX 7000XE radio is equipped with numerous LEDs to provide intelligent lighting
features. The VOCON board contains 2 lighting controller devices, which illuminate all the LEDs
throughout the radio, as shown in
Figure 3-44
.
VOCON Board MNCN6200 (Dual-Display)/ MNCN6201 (Top Display):
The boost lighting controller, U2203, provides illumination to the main QVGA color display, and
keypad color backlights. The secondary lighting controller, U2201, generates illumination for the top
display backlight, TX/RX indicator lamp, and the keypad white backlights. Both lighting controller
devices are controlled through OMAPs I2C interface (SCL and SDA). Radio models with the top
display only will not have the boost lighting controller and supporting circuitry placed on the VOCON
Board (MNCN6201).
VOCON Board MNCN6202 (Dual-Display)/ MNCN6203 (Top Display) :
The lighting controller IC, U2203, provides illumination to the main QVGA color display, and keypad
color backlights. The secondary lighting controller, U2201, generates illumination for the top display
backlight, TX/RX indicator lamp, and the keypad white backlights. Both lighting controller devices are
controlled through OMAPs I2C interface (SCL and SDA). Radio models with the top display only will
not have the lighting controller IC and supporting circuitry placed on the VOCON Board
(MNCN6203).
Some of the intelligent lighting color schemes are shown in
Table 3-7
.
To save on current drain, a switched input voltage supply circuit, net name VDD_LC, was added as
an input to the lighting controllers. The current drain savings occurs while operating in the dim or
standby states of operation for the backlights. The input voltage operates on the 3.6 V external
switcher supply (VCC_SW_3.6) for low current operations, and switches to the external 5 V switcher
(VCC_SW_5) through the P-FET during higher current mode.
Table 3-7. LED Color Codes
Feature
Color
Default
White
Out of Range
Red
Low Battery
Red
Emergency
Amber
Call Received
Green
Call Paged
Green
Summary of Contents for ASTRO APX 7000
Page 1: ......
Page 4: ...iv Document History Notes ...
Page 24: ...2 4 Radio Power DC Power Routing VOCON Board Notes ...
Page 98: ...3 74 Theory of Operation Global Positioning System GPS ...
Page 163: ...Troubleshooting Charts PA Failure 5 59 ...
Page 164: ...5 60 Troubleshooting Charts PA Failure ...
Page 276: ...7 58 Troubleshooting Tables List of Board and IC Signals Notes ...
Page 318: ...8 42 Schematics Boards Overlays and Parts Lists Transceiver RF Boards VHF 700 800 Notes ...
Page 380: ...8 104 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 700 800 MHz Notes ...
Page 432: ...8 156 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 VHF Notes ...
Page 458: ...8 182 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 UHF2 Notes ...
Page 498: ...8 222 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 700 800 MHz Notes ...
Page 546: ...8 270 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 VHF Notes ...
Page 606: ...8 330 Schematics Boards Overlays and Parts Lists VOCON Boards Notes ...
Page 638: ...Glossary 10 Glossary Notes ...
Page 643: ......