9-4
4. LED Backlight Drive Block Diagram
IC1101
(LED BACKLIGHT DRIVER)
OV
P
DRIVE
Q1101
CONTR
OL
LOGIC
1
13
5
6
7
12
DRIVE
VREG
FA
IL
DETECT
11
17
15
VLED1
1
ILED1
2
Q1102
PO
WER SUPPL
Y CB
A
LCD P
ANEL
ASSEMBL
Y
PR
O
TECT3
BA
CKLIGHT
-ADJ
BA
CKLIGHT
-SW
TO
SYSTEM CONTROL
BLOCK DIAGRAM
P-ON+21V
CN1001
IC1301
(LED BACKLIGHT DRIVER)
OV
P
DRIVE
Q1301
CONTR
OL
LOGIC
1
13
5
6
7
12
DRIVE
VREG
FA
IL
DETECT
11
17
15
VLED3
5
ILED3
6
Q1302
FL13.12ABLBD