9-4
4. LED Backlight Drive Block Diagram
IC1101
(LED BACKLIGHT DRIVER)
OV
P
DRIVE
LOGIC
ISW
Q1101
3
2
6
LOGIC
14
DRIVE
LDO
F
AIL
DETECT
13
15
11
VLED1
1
ILED1
2
VLED2
1
ILED2
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
CN1101
CN1201
IC1201
(LED BACKLIGHT DRIVER)
OV
P
DRIVE
LOGIC
ISW
Q1201
3
2
6
LOGIC
14
DRIVE
LDO
F
AIL
DETECT
13
15
11
Q1202
Q1103
Q1203
PL14.16ABLBD