LG 50PK950 Training Manual page 41

50PK950 Signal and Voltage Distribution Block
Y Drive
5VFG (5V) measured
Upper
from Floating Ground
FPCs
15VFG (15V) measured
from Floating Ground
P101
P102
P117
P109
P101
Floating Gnd (FG)
FG5V
Drive Signals, FG5V
P103 Drive Data
P103
and Y-Drive.
Clock (i2c)
Y-Drive
FG
P104
Y-SUS Board
FPCs
FG5V
P201
Drive Data
Clock (i2c)
Y-Drive
P202
FG
P209
P118
Floating Gnd (FG)
P203
Drive Signals, FG5V
and Y-Drive.
P204
Y Drive
Lower
Display Panel Horizontal
Electrodes Reset, Sustain
X-Board-Left
P201 P202
SMPS TURN ON SEQUENCE
Step 1: RL ON 17V, AC Det)
Step 2: M5 On +5V, Error Det, M5V, Va, Vs
P812
P113
M5V, Vs, Va
Note:
Va not used
by Y-SUS only
fused and routed
to the X-Board
FG5V
FG15V
Logic Signals
18V
VSC To Y-SUS and Y-Drive
-VY
P101
18V / M5V
Note: 18V not used
by Control
3.3V
P114
Va
RGB Logic
Signals
3.3V
P110
P121
P120 P220
Va
P203 P204 P205
Display Panel Vertical Address (Colored Cell Address)
SMPS OUTPUT VOLTAGES IN STBY
STB +5V
SMPS OUTPUT VOLTAGES IN RUN
AC Det, STB5V, +5V, 17V to Main Board
Vs, Va and M5V to Y-SUS,
Vs to Z-SUS Board
P811
SMPS
SMPS
Board
Turn On
Commands
SK101
P814
AC
Input
Filter
P1
P2
CONTROL
Display Enable
P31
Board
LVDS Video
P101
P104
3.3V
3.3V
P102
3.3V
To Motion
Remote
RGB Logic
+5V
Signals
To LOGO
3.3V
3.3V
P210
X-Board-Center
P232 P211 P311 P331
P221
Va
P206 P301 P302
41
Z-SUS
Board
Vs
P102
RL_ON
+17V, AC Det
M5 On
+5V, M5V,
17V, Va, Vs
Z Drive Control
Signals
P107
18V / M5V
Set in Stand By:
STB +5
P1001
P400
P702
P902
+3.3V
MAIN Board
P703
P300
IR,
Intelligent Sensor
P101
P100
P310
X-Board-Right
P320
P303 P304 P305
October 2010
Display Panel
Horizontal
Electrodes
Sustain
Z-Drive
FPCs
P201
P105 P101
P103 P102
P106 P103
P202
Z-SUB
P203
Board
FPCs
Speakers
3.3V
Key Board
Pull Up
Soft Touch Keys
And Power Button
P306
50PK950 Plasma