LG Flatron 795FT Plus (FB795E-UA) - Block Diagram

BLOCK DIAGRAM
- 12 -
POWER INPUT
.Free voltage: 100~240VAC
(50/60Hz)
.PFC version: 200~240VAC
(50Hz)
Line Filter
Degaussing Circuit
< OSD Control >
SMPS
TRANS
(T901)
SMPS
5V
CONTROL (IC901)
DPM
CONTROL
CIRCUIT
SUB-
TRANS
(T902)
190V -12V 80V 15V 12V 6.3V
TILT
Control Circuit
6.3V
12V
E
2
PROM
(IC402)
H / V POSITION H / V SIZE SPCC TRAPIZODE PIN BALANCE PARALLELOGRAM TILT RECALL DEGAUSS COLOR CONTROL H/V MOIRE LANGUAGE INFORMATION VIDEO LEVEL OSD POSITION
5V
OSD IC (IC301)
H-Sync Sig V-Sync Sig I
2
C DATA(SDA)
I
2
C CLOCK(SCL)
VIDEO PRE-AMP (IC302)
Signal
Cable
R
G
B
VIDEO MAIN AMP (IC303)
12V5V
CUT OFF
CONTROL IC
(IC304)
80V
80V 12V
5V
H/V Sync Processor
( IC701 )
TDA9113
V-OUT
( IC601)
TDA8172
H-OUT
( Q708)
H-Linearity
Correction
DC/DC Converter
X-RAY
Protection
Circuit
FBT
( T701 )
Dynamic
Focus
Circuit
Auto Beam Limit
Vertical Blanking,
Brightness Control
-160V
30V
400V
H.V
CONTROL
(IC702)
DUMMY
TRANS
12V
12V
15V
12V
MICOM (IC401)
SCL / SDA
H/V Sync,
PWM Control
Sig
12V
15V-12V
190V
DY CDT
Heater ( 6.3V )
I
2
C
I
2
C
I
2
C
H/V
Sync
G
1
Screen
Dynamic Focus
Static Focus
H.V
R/G/B
Bias
R/G/B
Contrast
H-DRV
B-DRV
15V
TILT
COIL
DEGAUSSING
COIL
I
2
C
VOLTAGE
FEEDBACK
SUB-
CONTROL
(IC903)
B-DRV Circuit