LG StudioWorks 500G - Block Diagram

BLOCK DIAGRAM
- 7 -
AC 90~264V INPUT
Line Filter
Degaussing Circuit
SMPS
TRANS
(T901)
SMPS CONTROL (IC901)
DPM
CONTROL
CIRCUIT
105V
50V 13V
6.3V -10V
TILT
Control Circuit
6.3V
13V
E
2
PROM
(IC402)
H / V POSITION BRIGHTNESS
<OSD DISPLAY>
CONTRAST H / V SIZE UP/BOTTOM-CORNER OSD TIME TRAPEZOID PIN BALANCE PARALLELOGRAM H/V MOIRE COLOR RECALL/RESET LANGUAGE DEGAUSS INFORMATION PINCUSHION
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)
5V
5V
H/V Sync Processor
( IC701 )
V-OUT
( IC601)
STV9302
H-OUT
( Q706)
H-Linearity
Correction
DC/DC Converter
X-RAY
Protection
Circuit
FBT
( T701 )
Auto Beam Limit
Vertical Blanking,
Brightness Control
- 160V
40V
13V
D/D Feed Back
5V
Regulator
12V
Regulator
12V
MICOM (IC401)
SCL / SDA
H/V Sync,
PWM Control
12V
5V
13V
105V
13V
50V
DY CDT
Heater ( 6.3V )
I
2
C
I
2
C
I
2
C
H/V
Sync
G
1
Screen
Focus
H.V
R/G/B
Drive/Contrast
Cut-Off
H-DRV
B-DRV
12V
B+
13V
TILT
COIL
DEGAUSSING
COIL
I
2
C
Vout 1