LG 42LV5500 Training Presentation page 44

42LV5500 Television Turn On Commands Circuit Drawing
SMPS
P201
3
2.62V
PWR_ON
1
24.5V
2
24.5V
24V
3
24.5V
4
4
Gnd
5
Gnd
6
Gnd
7
Gnd
8
3.55V
1
9
3.55V
10
SBY3.5V
3.55V
11
3.55V
12
Gnd
13
Gnd
14
Gnd
15
n/c
n/c
16
8 12V
17
3.26V
DRV_ON
18
12V
12V
19
n/c
n/c
20
4
12V
21
0.2V~3.3V
9
PWM-DIM1
22
n/c
n/c
23
n/c
ERR OUT 24
PWM-DIM1 (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.
7
To DC to DC Conv
Panel_Vcc (12V)
T-CON
+3.3V_Normal
MAIN
P502
PWR_ON
1
2
L504
3 C519
0.1uF
4
5
6
7
8
9
1
10
+3.5V_ST
11
12
13
14
C506 0.1uF
15
n/c
16
L501
17
18
19
20
9
21
PWM-DIM_22
22
23 n/c
24 n/c
P1601
To
3.51V p/p
SMPS
3.54V p/p
P832
(Data) 3.56V p/p Data
11.97V
Q507
D S
11.94V
1.8V
G
6
L509
11.96V
2
7
IC505
3.47V
3.35V
6
8
Power_On/Off2_2
+24V
4
Q502 Q501
2.62V 0V
0V
R508
4.7K
L503
3.5V
+3.5V_ST
C508
0.1uF
R546
4
+12V
12V
3.28V
INV_ON
R532
8
100Ω
R526
0Ω
Dimming (Variable)
9
DIM0_VS
8
9
DIM0_SCLK
3
9
DIM0_MOSI
5
44
R555 22KΩ
R558 10KΩ
Q506
R559
1.8K
0V
0.68V
L507
+12V
6
R542
10KΩ
3
0.64V
RL_ON
R502
10K
1 R643
22Ω
Reset
R644
C608
47K
0.1uF
1K
+3.3V_Normal
Q504
8
0V
R547
10K
R228 22
Ω
P-DIM: Digital
R230
22Ω
R222
22Ω
R221
22Ω
May 2011
+12V 4
L511
R553
Q505
47K
0V
R605
100Ω
Power
20
On/Off 2_2
Panel_CTL
IC602
Micro
IR 16
2
36
RL_ON
7
11
Model_Opt_1
40
Reset
5
14
Power Det IC8007
IC8008
Key 1 25
2
Key 2 26
10
INV_CTL
AH17
IC101
BCM
AE17
AE8
AE9
LCD-DV 42LV5500