Figure 8-65. Hln5979B Controller Board Display/Keypad Lighting Control Circuits - Motorola APX 5000 Service Manual

Schematics, Boards Overlays, and Parts Lists: Controller Board
V_LED_TOP
V_EXT_1.85
R2201
RADIO TOP LIGHTING
200K
C2202
C2201 0.1UF
0.1UF
IC2_TRANS_VREF2
V_LED_TOP
U2202
PCA9306
8
EN
I2C_CLK
3 6
SCL2
SCL1
4 5
SDA1 SDA2
I2C_DATA
R2204
3.3K
SCL_5V
OMAP_RESET
SDA_5V
V_LED_TOP
R2207
0
C2203
R2206
0.1UF
3.3K
U2201
LP3943
19 1 L2202 270NH
SCL LED0
18 2 L2203 270NH
RST LED1
20 3 L2204 270NH
SDA LED2
22 4
A0 LED3 NC
23 5 TX_RX_RED_LED
A1 LED4
TX_RX_GREEN_LED
24 6
A2 LED5
7 TX_RX_AMBER_LED
R2215 430
LED6
8
LED7
NC
10
LED8 NC
11
LED9 NC
12
LED10 NC
13
LED11 NC
14
LED12 NC
15
LED13 NC
16
LED14 NC
17
LED15 NC
LIGHTING CONTROLERS
V_SW_5 V_LED_TOP
TOP_DISP_RED_LED
R2235
TOP_DISP_GREEN_LED
0
TOP_DISP_WHITE_LED
IN
IO

Figure 8-65. HLN5979B Controller Board Display/Keypad Lighting Control Circuits

FRONT DISPLAY AND KEYPAD LIGHTING
V_SW_3.60 V_LED_FRONT
R2242
0 NO PLACE
IF USING
CHARGE PUMP
C2217
1UF
R2240
0
V_EXT_1.85
U2204
LM27965
23
POUT
I2C_CLK
1
SCL
16
D1A
24 15
VIN
D2A
OMAP_RESET
10 14
RESET
D3A
17 13
ISET D4A
I2C_DATA 2 12
SDIO
D5A
7 4
VIO D1B
C2218
5
D2B
1UF DNP
19 6
C1_P
D3B
22 3
R2238 C1_N D1C
20
C2_P
12.4K
C2219 1UF 21 8
C2_N
NC1
DNP 11
NC2
8-131
R2241
0
C2220
1UF
KP_LED1
KP_LED2
KP_LED3
KP_LED4
F_DISP_LED1_RETURN
F_DISP_LED2_RETURN
F_DISP_LED3_RETURN
NC
NC
NC