Figure 8-108.Display/Keypad Lighting Control Circuit (84012432001) - Motorola APX 1000 Detailed Service Manual

8-214
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
I2C_CLK
EN EN
IN 3 6
SCL1 SCL1 SCL2 SCL2
IO 4 5
SDA1 SDA1 SDA2 SDA2
I2C_DATA
R2204
3.3K
SCL_5V
SDA_5V
V_LED_TOP
V_EXT_1.85
Q2202
DTC114YKAF
3
2 10K 10K
47K 47K
OMAP_RESET
Figure 8-108. Display/Keypad Lighting Control Circuit (84012432001)
V_LED_TOP
R2207
0
R2206
3.3K
C2203
0.1UF
U2201
LP3943
19 1 E2244 TOP_LIGHTBAR_RED_LED
SCL SCL LED0 LED0
18 2 TOP_LIGHTBAR_GREEN_LED
E2245
RST RST LED1 LED1
20 3 E2246 TOP_LIGHTBAR_AMBER_LED
SDA SDA LED2 LED2
22 4 KEYPAD_WHITE_LED
A0 A0 LED3 LED3
R2244
23 5 TX_RX_RED_LED
E2242 E2248
A1 A1 LED4 LED4 R2245
24 6 E2249 TX_RX_GREEN_LED
470
A2 A2 LED5 LED5
R2246
7 E2247 TX_RX_AMBER_LED
300
LED6 LED6
8
470
LED7 LED7
10 MAIN_DISPLAY_LED1
L2202 270NH
LED8 LED8
11 MAIN_DISPLAY_LED2
L2203 270NH
LED9 LED9
12 MAIN_DISPLAY_LED3
L2204 270NH
LED10 LED10
13 MAIN_DISPLAY_LED4
L2205 270NH
LED11 LED11
14
LED12 LED12
15
LED13 LED13
16
LED14 LED14
17
LED15 LED15
Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF2 (84012432001 / PC000354A01)
LIGHTING CONTROLERS
53
J2302
55
J2302
57
J2302
58
J2302
60
J2302
56
J2302
51
V_SW_5 J2302
59
J2302
V_SW_5 V_LED_TOP
R2235
0