Read LG 50PS2000-ZB (CHASSIS:PD92A) Service Manual online
- 13 -
POWER FLOW DIAGRAM
AU
T
O
_
GND
22
M5V-
ON
21
KEY-
ON
24
5
VST
23
SMW20
0
-2
4C
Waf
er
Vs
-
ON
AC
DET
GND
GND
5V
5V
GND
12V
GND
17V
20
18
16
14
12
10
8
6
4
2
RL-ON
5V
D
E
T
GND
GND
5
VST
5V
GND
12V
GND
17V
1
19
17
15
13
11
9
7
5
3
P1
P_
KEY
GPIO90
A
P
2125
3.3
VS
T
Mstar
FET
(Q303)
A
Z
1084S
-3.3
A
Z
1117H
-A
DJ
3
.3V
_MST
1
.8V
_MST
1.3
V_V
D
D
C
M
P
2305
D
S
A
Z
1117H
-1
.2
1.2
V_P
V
S
B
VSB IC
DDR
5
VST
FET
(Q
504)
Po
w
e
r_S
W
V
SB_
C
tr
l
5V_M
S
T
AV
DD_
M
P
L
L
VDD
P
A
V
DD_
ME
MP
L
L
AVDD_A
D
C
AVDD_
D
M
AVDD_OTG
AVDD_A
U
AVDD
_
LPLL
AVDD_
3
3
AV
DD_
DDR
1.3V
_
V
D
D
C
AV
DD_
M
L
IN
K
DD
R1.
8
V
3.3
V_P
V
S
B
1.2V
_D
V
D
D
3.3V
_D
V
D
D
3.3V
_
A
VD
D
USB
M
IC
2019
Y
M
6
5V
5V_U
S
B
HDMI
sw
it
c
h
12V
K
IA
7808
A
F
5V_T
U
Tun
er
A
udi
o
AM
P
HDCP
NVR
A
M
Se
ri
al
Fl
a
s
h
17V
EE
PRO
M
(RGB)
MA
X3232
EE
PRO
M
(HDMI)
L312
L326
L313
L301
L325
IC
30
1
L323
L308
L307
L306
L305
L304
L303
L302
L309
L321
L316
L319
L320
L504
IC
30
2
IC
30
5
IC
3
0
4
IC
80
4
IC
50
3
IC
50
2
3.3V
_
A
MP_
D
V
D
D
3.3V
_
A
MP_
A
V
D
D
L1011
L1010
L501
L503
L324
L331
<Mstar
Po
wer Se
que
n
ce
>
A
Z
1117H
-A
DJ
IC
50
5
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