Philips 40PFL4908/F7 - Type B LED Backlight Diagram

9-9
4. LED Backlight Drive Block Diagram
VLED11 ILED13
POWER SUPPLY CBA
LCD PANEL ASSEMBLY
ILED24 ILED35 ILED47 ILED58
ILED69 VLED211
IC1001 (LED BACKLIGHT DRIVER)
OVP
CN1001
DRIVE
Q1001
CONTROL LOGIC
10 16 14
24
13
1
DRIVE 3
2
DRIVE 5
P-ON+21V
PROTECT3
BACKLIGHT-ADJ BACKLIGHT-SW
TO SYSTEM CONTROL BLOCK DIAGRAM
IC1002 (LED BACKLIGHT DRIVER)
OVP
DRIVE
Q1002
CONTROL LOGIC
10 16 14
24
13
1
DRIVE 3
2
DRIVE 5
PL13.13BLBD