LG 47LX9500 Service Manual page 54

47LX9500 Television Turn On Commands Circuit Drawing
47LX9500 Television Turn On Commands Circuit Drawing
MAIN Board
P7802
To
1
T-CON
SMPS
P201
3.31V
PWR
1
24.65V
2
24.65V
24V
3
24.65V
4
Gnd
5
Gnd
6
Gnd
7
Gnd
8
3.41V
9
3.41V
10
SBY3.5V
3.41V
11
3.41V
12
Gnd
13
Gnd
14
Gnd
15
n/c
n/c
16
11.88V
12V
17
2.92V
INV_CTL
18
11.81V
12V
19
0.37V~3.3V
PWM-DIM
20
11.81V
12V
21
n/c
n/c
22
n/c
n/c
23
ERR OUT
Gnd
24
PWM-DIM (PWM Dimming) can vary according to incoming video IRE level, OSD Backlight
setting and Intelligent Sensor (room light condition).
Range 0.37V to 3.3V.
MAIN Board
P7800 LVDS
To
1 2
Panel_Vcc (12V)
T-CON
3 4
+3.3V_Normal
MAIN Board
P8000
PWR-ON
1
2
L8005
3
C8024
68uF
4
5
6
7
8
9
10
+3.5V_ST
11
12
13
14
C8001
15
100uF
n/c
16
L8002
17
INV_On
18
19
PWM-DIM
20
21
n/c
22
n/c
23
24
Q8004
S
11.79V 11.8V
G
D 1.8V
L8015
11.8V
7 2
IC8005
3.36V
3.36V
8 6
Power_On/Off2_2
+24V
24.65V
Q8002 Q8000
3.3V 0V
0V
R8004
4.7K
L8003
3.41V
+3.5V_ST
C8000
100uF
R8026
1K
+12V
11.88V
3.1V
Q8005
R8019
0V
100Ω
Digital Dimming (Variable)
R8027
0Ω
54
R8003 22KΩ
R8010 10KΩ
Q8003 Q8001
R8011
1.8K
0.68V
L8013
+12V
20
R8060
R8176
10KΩ
22K
16
R8187
0.66V
22Ω
36
RL_ON
R8000
R8178
22Ω
10K
40
R8184
C8108 0.1uF
47K
40
C8103
0.1uF
+3.3V_Normal
10
R8134
R8032
22Ω
10K
R25
R1041
0Ω
September 2010 47LX9500
+12V
L8000
R8001
47K
0V
R8103
100Ω
Power
On/Off 2_2
IC8101
Micro
IR
Model_Opt_1
11
RL_ON
R8135
22Ω
Reset
VDD
14
Power Det
25
Key 1
26
Key 2
INV_CTL
IC900
BCM
GPIO 09
LCD-DV