LG 50PV450 Manual page 107

50PV450 Control Board Layout Drawing
IC25
P105
1) 0.8V 8) 2.95V
2) Gnd 7) 1.85V
3) 4.87V 6) 1.85V
4) 6.46V 5) 4.82V
18V
Pins 23-25
M5V
Pins 26-28
FL1/FL2
FL5
Diode Check
All Connectors
Connected
0.73V
IC61
05) 3.29V 04) 5.75V
06) 3.29V 03) 1.88V
07) 3.28V 02) Gnd
08) 3.32V 01) 0.8V
18V To Z-SUS (In P105 pins 23-25) (Out P2 pins 14-15)
C61
To
4.89V
Y-SUS
IC25
Board
M5V
1.85V
L2
FL1/2
1-4
1.84V
(3.3V)
C65
IC53
1.84V
IC11
3.3V
Gnd 3.26V
P101
X1
Gnd
To Left
0.02V
0.65V
X Board
Q1
1-4
P102
(3.3V)
To Center
IC53
X Board
Diode Check All Connectors
Connected 1.28V
P22 N/C
3) 4.93V
2) 3.29V
IC101 IC102
1) Gnd
L1
D1 Blinks
Indicating Board
is Functioning
D1
CONTROL BOARD
1.63V
25 p/n: EBR71727801
IC1
Mhz
1.69V
4.89V
C72
1-4
IC53
(3.3V)
IC53
3) 4.89V
2) 3.3V
1) Gnd
3.3V To X-Boards
Diode Check All
Connectors Connected
0.6769V
107
P2
C52
4.89V
To Z-SUS
Board
IC51
FL5
IC61 M5V
1.04V
3.26V
C76
VS-DA
1.04V
1.04V
TP
AUTO
Gen
P31
P104
LVDS
To Right
X Board
May 2011 50PV450 Plasma
P2
14-15) 18V 18.34V
13) n/c (n/c)
11-12) M5V 4.89V
9-10) Gnd Gnd
08) SUS_DN 0.73V
07) CTRL_EN 0.06V
06) SUS_UP 0.15V
05) VZB2 2.49V
04) ER_DN 0.1V
03) VZB1 2.53V
02) ER_UP 0.11V
01) ZBIAS 1.89V
To
Main
Board