Leds - Nokia N900 Service Schematics

C1303
1u0
R1361 R1363
220R 220R
GND
V1361
4k7
CIR
47k
CPU > OMAP3430
GND
R1301
100k
CPU > OMAP3430 RGB_INT
I2C_2(1:0)
1
0
RGB_CTRL_EN
GAIA SLEEPCLK
VBUS
R1307 R1302
120k 100k
GND
R1306
CHRG_IND
2k2
GAIA > USB battery
charger
RGB_LED(2:0)
Display > Main flex
connector
1.8V
VIO_18
BOOT_MODE
CPU > OMAP3430
Customer Care / GTM / Competence Management
Confidential Copyright © 2009 NOKIA Only for training and service purposes
IR LED
V1360
R1364 R1362
220R 220R
V1361
4k7
47k
1.8V
GND
VIO_18
LED driver
N1301
E5 A1
SCL D1
E4 A2
SDA D2
J1301 C4 B1
EN D3
B2
D4
C1
D5
D4
CLK C2
D6
D3 D1
INT D7
D2
D8
E1
D9
C3
ASEL0
B3 A3
ASEL1 VOUT
B5 A5
C1+ C2+
B4 A4
C1304 C1- C2-
C1305
0u47
0u47
C5= VBAT_LEDS
D5= GND
C1306
GND
1u0
GND
R1304 R1305
1k0 2k2
Charging LED Charging LED
driver (red) driver (green)
V1303 V1303
R1303
2k2
V1301 V1302
0
1
2
N1302
Analog switch
1
NO
6 IN 4
COM
3
NC
5= VBAT
2= GND
qwerty leds
V1315 V1314 V1313 V1312 V1311
GND GND
GND GND GND
C1351 C1350
4u7 4u7
GND
Version: 2.0 | 07.10.2009 | N900/RX-51 | Board version: 2JH_21a | LEDs | Page 6 (18)
VBAT_LEDS
V1310
GND
2-channel
LED driver
N1322
B3 B2
D1A VIN
C3 A3
D2A ENA
B1 A2
D1B ENB
C1 A1
D2B ISET
C2= GND
R1323
C1322
xR
100n
GND GND
L1351
120R/100MHz
LCD backlight
LED driver
N1350
B1 A1
VDD AGND
C1 A2
VOUT EN
C2 A3
IND LD
C3 B3
L1350 PGND FB
22uH
R1352 R1351
27R 27R
GND GND
V1350
R1353
27R
GND
R1390
L=
W=0.40
D1322
J1323
1
SLEEP_IND CPU >
&
7
OMAP3430
2
NSLEEP1
8= VIO_18
4= GND
D1322
5
&
3
6
CPU >
SYS_CLKREQ
OMAP3430
8= VIO_18
4= GND
3.7V
VBAT
D1350
1 GAIA
1 LCD_LEDS
J1330
4
2
CABC
5= VIO_18
Display > main
3= GND
R1354 flex connector
100k
GND
LCDLEDS_2
Display > main
flex connector
LCDLEDS_1
SETCURR1