Figure 8-68. Display/Keypad Lighting Control Circuit (84012313002) - Motorola APX 1000 Detailed Service Manual

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF1 (84012313002 / PC000353A01)
V_LED_TOP
V_EXT_1.85
R2201 RADIO TOP LIGHTING
200K
C2202
C2201 0.1UF
0.1UF
IC2_TRANS_VREF2
U2202 V_LED_TOP
PCA9306
8
EN
I2C_CLK
IN 3 6
SCL1
SCL2
I2C_DATA
IO 4 5
SDA1 SDA2
R2204
SCL_5V
SDA_5V
V_LED_TOP
V_EXT_1.85
R2254
Q2202 10K
DTC114YKAF
3
10K
2
47K
OMAP_RESET
V_LED_TOP
R2207
0
C2203
R2206
0.1UF
3.3K
3.3K
U2201
LP3943
19 1
SCL LED0
E2244
18 2
RST LED1
20 3 E2245
SDA LED2
E2246
22 4
A0 LED3
23 5 E2242 470 R2244
A1 LED4
24 6 E2248
300
A2 LED5
7 E2249 E2247
LED6
8
LED7
L2202
10 270NH
LED8
L2203
11 270NH
LED9
L2204
12 270NH
LED10
13
LED11
14 L2205
LED12
270NH
15
LED13
16
LED14
17
LED15
C2223
100PF
TOP_LIGHTBAR_RED_LED 53
J2302
TOP_LIGHTBAR_GREEN_LED 55
J2302
TOP_LIGHTBAR_AMBER_LED 57
J2302
KEYPAD_WHITE_LED
TX_RX_RED_LED 58
J2302
R2245 TX_RX_GREEN_LED 60
J2302
TX_RX_AMBER_LED 56
R2246
J2302
470
MAIN_DISPLAY_LED1
MAIN_DISPLAY_LED2
MAIN_DISPLAY_LED3
MAIN_DISPLAY_LED4
51
J2302
V_SW_5
59
J2302
LIGHTING CONTROLERS

Figure 8-68. Display/Keypad Lighting Control Circuit (84012313002)

8-135
V_SW_5 V_LED_TOP
R2235
0