Philips PET831 Service Manual page 46

5
VIN_SYS
D
R194
100K/J/0603
R349
200K/J/0603
Q25
B
(14) LCD_ON_OFF
PMBS3904
R438
0/J/0603
C
GND_DC
B
(14) LCD_ON_OFF
A
5
4
Q50
RSQ035P03
1
VCC_1542
4 2
5
6
R351 R352 C332
100K/J/0603 100K/J/0603 10U/35V/1210
GND_DC
7
3
8
C336
10N/50V/0603
GND_DC
VCC5
Q36
RSR020P03
S
R281
4.7K/F/0402
R362
4.7K/F/0603
Q35
B
PMBS3904
GND
4
3
L12 C423
10UH/1.14A/D63LCB 1U/50V/0805
GND_DC
2
FSEL FB
EN
1
COMP
SS
U24 R358
MP1542 10K/F/0603
C337
2.2N/50V/0603
GND_DC
LCD Backlight POWER DRIVER
VEE_LCD
FB33 FB34
1A/600OHM/0603 1A/600OHM/0603
D
C260
10U/10V/1206
GND_A
LCD Panel POWER DRIVER
3
2
D24
D-B140-13-F
A K
R495 C333 C334
80.6K/F/0603 2.2U/25V/1206 10U/35V/1210
R496
10K/F/0603
GND_DC
R439
165K/F/0603
LED_BRIGHTNESS (14)
VDD_LCD
C261
0.1U/25V/0603
GND
Title
Backlight & LCD Power
Size Document Number
B
WDR831
Date: Thursday, December 13, 2007
2
1
VCC_LED
R634
0/J/0805
D
C335
0.1U/50V/0603
GND_DC
C
B
A
Rev
C
Sheet 22 of 27
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