LG 42PQ30 Training Manual page 28

42PQ30 SIGNAL and VOLTAGE DISTRIBUTION BLOCK DIAGRAM
42PQ30 SIGNAL and VOLTAGE DISTRIBUTION BLOCK DIAGRAM
Y Drive PWB
FPCs
P201
Y-SUS
P202
Floating
Ground
P101
P203
P203
P103
P208
P204
P102
P205
V Scan
P207
P104
P205
Floating
5V
Drive Data
Clock (i2c)
P206
Display Panel
Horizontal Address
X-PWB-Left
P201 P202
M5V, Vs, Va
PWB
P201
P206
Logic Signals
P160
P101
5V / 17V
P202
Va
RGB Logic
Signals
P203 P204 P205
P811
SMPS
PWB
SN101 P813
AC
Commands
Input
Filter
P121
CONTROL
PWB
P101
P162
P161
RGB Logic
Signals
3.3V 3.3V
Va Va
P232 P211 P311 P331
P206 P301 P302
Display Panel Vertical Address
28
Horizontal Address Reset
SMPS OUTPUT VOLTAGES IN STBY
STB +5V (AC Voltage Det)
SMPS OUTPUT VOLTAGES IN RUN
STB +5V, 17V, 12V to Main PWB
Vs, Va and M5V to Y-SUS
SMPS
Relay On
Turn On M5 On
VS On
Vs and
Er Com
Set Off: STB +5
LVDS
AC Voltage Det
P301
P1002
MAIN PWB
P1001
P1001
5V
STBY
IR, Power LED,
Intelligent Sensor
X-PWB-Right
P303 P304
Display Panel
FPCs
Z SUS
P6
PWB
Vs
P3
P7
P2
5V / 17V
Z Drive Signals
Speakers
Control Keys
Master Power Switch
P305 P306