Panasonic la15 tc-l42e30 Service Manual
28
10.2. Block (1/2) Diagram
NEED HOLDER
COLD
HOT
SUB_ON
BL_SOS
BL_ON
PWM
PC7302
F7101
SUB3.3V
5.8VS
D7501
P15V
D5174
P15V
D5173
CF7101
*
*
D7507
D7502
5.8VS
PA7504
D5175
D5172
SUB5V
PA7601
PA7503
Q7501
D9500
D9600
5.8V
Q7301
6
14
14
KEY1
IC8700
AC ERROR DET
Q7504
FB
4
LF7103
13
AC CORD
9
V/
5
11
VH
BL_ON
9
+/
T7201
ERROR
DET
10
7
6
13
RELAY
+16V
2
KEY1
PC7303
PWM
MAIN
4
BL_ON
+16V
KEY3
SUB_ON
VOL
/V
VOL
12
D7102
12
KEY3
2
IC7201
IC7301
11
SUB3.3V
BL_SOS
POWER SUPPLY
LCD PANEL
5
IC7502
BL_SOS
IC8701
P4
24V
CH
3
P2
1
INPUT/OK
LCD
DRIVER
OVP
A
OUT
L
SUB5V
PWM
LED
BACK
LIGHT
IC7601
4
CF7102
PC7301
Q2002
8
RECTIFIER
1
DCDCEN
A09
LF7101
CH
10
T7301
VCC
PHOTO
COUPLER
+5V
MENU
NOISE
FILTER
P1
Q7201
POWER
+16V
PHOTO
COUPLER
8
-/
15
P
PFC CONTROL
PWM CONTROL
VCC
N
FB
D1
+3.3V
Q7503
D2
3
IC9500
N
LED8
VCC
LED DRIVER
STB
LED
OVP
PWM
Q9603
SOS
4
N
Q9506
LED1
LD4
ANODE1
1
1
14
SOS
12
8
LD
LED2
LED DRIVER
IC9600
LED5
LD2
9
Q9503
LED4
PWM
3
7
LED3
STB
LED
10
LED DRIVER
LED7
5
11
5
LED6
OVP
Q9606
ANODE2
6
VCC
12
PNL12V
27
47
11
46
LVDS DATA
[R(A-D)_E+/-)]
A15
PANEL12V
LVDS DATA
5
PANEL_VCC_ON
+12V
IIC0
IC8707
40
24
1
[R(A-D)_0+/-)]
+5.8V
4
6
1
5
3
2
COLD
HOT