Figure 8-77. Hln5960A Controller Board Display/Keypad Lighting Control Circuits - Motorola APX 5000 Service Manual

8-148
V_EXT_1.85 V_LED_TOP
R2201_2
200K
C2202_2
C2201_2
0.1UF
0.1UF
IC2_TRANS_VREF2
U2202_2
PCA9306
8
EN
I2C_CLK 3 6 SCL_5V
SCL1 SCL2
I2C_DATA 4 5 SDA_5V
SDA1 SDA2
V_EXT_1.85
Q2202_2
DTC114YKAF
10K
2
OMAP_RESET

Figure 8-77. HLN5960A Controller Board Display/Keypad Lighting Control Circuits

RADIO TOP LIGHTING
V_SW_5 V_LED_TOP
R2235_2
0
V_LED_TOP
V_LED_TOP
R2207_2
0
C2203_2
0.1UF
R2204_2
R2206_2
3.3K
3.3K U2201_2
LP3943
19 1 TOP_DISP_RED_LED
SCL LED0
18 2 TOP_DISP_GREEN_LED
RST LED1
20 3 TOP_DISP_WHITE_LED
SDA LED2
22 4 TOP_DISP_NVG_W
A0 LED3
23 5 TX_RX_RED_LED
A1 LED4
24 6 TX_RX_GREEN_LED
A2 LED5
7 TX_RX_AMBER_LED
LED6
8
LED7
10 TOP_DISP_NVG_R
LED8
11 F_DISP_LED1_NVG
LED9
12 F_DISP_LED2_NVG
LED10
13 F_DISP_LED3_NVG
V_LED_TOP
LED11
14 KP_LED1_NVG
LED12
15 KP_LED2_NVG
LED13
16 KP_LED3_NVG
LED14
17 KP_LED4_NVG
LED15
R2243_2
10K
OMAP_RESET_5V
3
47K
C2221_2
0.1UF
1
DNP
F_DISP_KP_NVG_MODE
ISET SWITCH
LED 7 ON = NVG MODE
LED 7 OFF = DEFAULT MODE
NVG PROFILE ALTERNATE
R2247_2
CURRENT DRAIN PATHS
82K
4 KEYPAD
R2215_2
3 FRONT DISPLAY
430
2 TOP DISPLAY (RED & WHITE)
R2255_2
11K
R2256_2
7.5K
R2257_2 7.5K
R2258_2
7.5K
R2259_2
11K
R2260_2 11K
R2261_2
11K
R2262_2
11K
V_SW_3.60
R2242_2
0
C2217_2
1UF
I2C_CLK
IN
OMAP_RESET
V_LED_TOP
F_DISP_AND_KP_ISET
V_EXT_1.85
I2C_DATA
IO
R2245_2
NC
12.4K
R2244_2
NC
10K
NC
NC
U2205_2
1
2SC5663
FRONT DISPLAY AND KEYPAD LIGHTING
Schematics, Boards Overlays, and Parts Lists: Controller Board
LED DRIVERS
U2204_2
LM27965
23
POUT
1
SCL
16 KP_LED1
D1A
24 15 KP_LED2
VIN D2A
10 14 KP_LED3
RESET D3A
17 13 KP_LED4
ISET D4A
2 12
SDIO D5A
7 4 F_DISP_LED1_RETURN
VIO D1B
5 F_DISP_LED2_RETURN
D2B
19 6 F_DISP_LED3_RETURN
C1_P D3B
22 3
C1_N D1C NC
20
C2_P
21 8
C2_N NC1 NC
11
NC2 NC
V_LED_FRONT
R2241_2
0
C2220_2
1UF