Motorola APX 7000 Detailed Service Manual page 80

3-56
VDD_LC
BOOST
CIRCUITS
5 Series LED
Vdda SW
Main_I_DAC
KP_R
KP_G
Boost
KP_B
Lighting
Controller
SUB_IDAC
GPIO_2
GPIO_1
I2C
GPIO_0/PWM
I2C_OMAP
Note:
* Only for APX 7000 Dual-Display Version
Figure 3-44. Lighting Circuit Detail Overview (VOCON Board MNCN6200/ MNCN6201)
VDD_LC
Vdda
SW
Boost
Lighting
*
Controller
GPIO_2
GPIO_1
I2C
GPIO_0/PWM
I2C_OMAP
Note:
* Only for Dual-Display Version
Figure 3-45. Lighting Circuit Detail Overview (VOCON Board MNCN6202/ MNCN6203)
V Boost
VDD_LC
*
Main Display
*
Keypad LEDs
8 LED
8 LED 8 LED
50 mA
50 mA
AMBER
50 mA
TOP_W
DNP
TP
TP
TP
Level
Translator
VSW_1
O ohm
10K ohm
VCC_SW_5W
VDD_LC
*
Keypad LEDs
8 LED
8 LED 8 LED
50 mA
KP_R
50 mA
KP_G
AMBER
50 mA
KP_B
TP
TP
TP
Level
Translator
VSW_1
O ohm
10K ohm
VDD_LC
Vdda
LED_0
LED_1
LED_2
LED_3
Secondary
LED_4
Lighting
LED_5
Controller
LED_6
LED_7
I2C
VSW_5
VDD_LC
O ohm
VDD_LC
Vdda
Secondary
Lighting
Controller
I2C
VSW_5
VDD_LC
O ohm
Theory of Operation
VDD_LC
TOP_R TOP_G TOP_W
2 LED 2 LED 2 LED
25 mA
25 mA
25 mA
25 mA
KEYPAD_WHITE
5 mA
TX_RX_RED
5 mA
T
5 mA
TX_RX_AMBER
430 ohm
25 mA
Lighting
Controller
Power Supply
VDD_LC
TOP_R TOP_G TOP_W
2 LED 2 LED 2 LED
25 mA
LED_0
25 mA
LED_1
25 mA
LED_2
25 mA
LED_3
5 mA
LED_4
5 mA
LED_5
5 mA
LED_6
430 ohm
25 mA
LED_7
Lighting
Controller
Power Supply
: Controller
X_RX_GREEN
KEYPAD_WHITE
TX_RX_RED
T X_RX_GREEN
TX_RX_AMBER