Emerson LC320EM2F Service Manual page 39

Power Supply 2 Schematic Diagram
CONTINUE
4 POWER 1
PANEL+15.8V
P-ON+3.3V
LCD-6V
LCD+24.5V
3
TO LCD MODULE
ASSEMBLY CN200
0
GND 1
15.8
LCD+15.8V 2
15.8
LCD+15.8V 3
20.0
VGH 4
C218
0
GND 5
OPEN
3.3
P-ON+3.3V 6
3.3
P-ON+3.3V 7
-6.1
LCD-6V 8
C201 C202 C675
0
2
GND 9 OPEN
0.1 0.1
7.0
VCOM 10
0
GND 11
1
G
D201
1SS133
R225
10K
C200 C212
R209A R209
0.1 0.1
OPEN 10
C211
15.7
1000P
7.3
Q202
7.0
KTC3875S-Y-RTK/P
(V-COM DRIVE)
R210
0
R212 7.0
100K
7.3
Q203
0
2SA1576UBTLQ
R214
(V-COM DRIVE)
OPEN
R220
OPEN
R211 R211A
R213 10 OPEN
0
R224
C213
47K C214 R215
1 47/25V 10K
15.8 7.4 7.0 7.0
8 7 6 5
VCC
IC200
TL3472CDR
(COMPARATOR)
VEE
1 2 3 4
0 0 0 0
R208
0
R202
OPEN
19.9 23.9
Q200
2SA1576UBTLQ
R203 R203A 23.5 R200 C204
C207 C206 R204
(SWITCHING)
OPEN OPEN OPEN 1K 2K 100K OPEN
R201
1K
Q201
KTC3875S-Y-RTK/P C205
18.4 R205 0.1
(SWITCHING)
1K
0.4
R206
0
100K
H I
R217
10K
R207
1
C208
C209 C210
22/50V
OPEN OPEN
J200
OPEN
Q205
OPEN
C215
R221
OPEN OPEN
R216
1.5K
R218
10K
7.0
R219
1K
0.2
Q204
0
KTC3875S-Y-RTK/P
(V-COM DRIVE)
D200 C203
1SS133 2.2/50V
JS200
R223
OPEN
0.6
R222
10K
1.2
0.6 Q206
KTC3875S-Y-RTK/P
(SWITCHING)
J
10-4
POWER SUPPLY CBA
CONTINUE
POWER 1
PROTECT3
VCOM-PWM
OE2
P-ON-H1
P-ON-H1-1
K L
FL11.4SCM2