Block Diagram - LG 177V Service Manual

< OSD Control >
SELECT
OSD
POWER
ON/OFF
BRIGHTNESS
CONTRAST
H / V POSITION
H / V SIZE
SPCC
TRAPEZOID
5V
PIN BALANCE
PARALLELOGRAM
ROTATION
RECALL
DEGAUSS
COLOR CURVE
MOIRE
LANGUAGE
RESET
VIDEO LEVEL
OSD TIME
6.3V
TILT
Control
Circuit
Degaussing
Circuit
Line
Filter
SMPS
CONTROL
(IC901)
POWER INPUT
100~240VAC
(50/60Hz)
H-Sync Sig
V-Sync Sig
2
I C DATA(SDA)
2
I C CLOCK(SCL)
MICOM
SCL / SDA
(IC401)
H/V Sync,
PWM Control
2 2
E PROM I C
(IC402)
15V
2
I C
H/V
Sync
15V
80V
50V
SMPS
15V
TRANS
(T901)
6.3V
Voltage
DPM
Regulating
CONTROL
Circuit
CIRCUIT
Signal
R
Cable
VIDEO
G
PRE-AMP
B
(IC302)
LM1269
OSD IC
5V
5V
(IC301)
2
I C
MTV038-15
R/G/B
Drive/Contrast
2
I C
Cut-Off
15V
H/V Sync Processor
Vout 1
( IC701 )
TDA4857
Vout 2
H-DRV
5V
DC/DC Converter
B-DRV
50V
D/D Feed Back
80V
Heater ( 6.3V )
VIDEO
MAIN AMP
(IC303)
LM2467
15V
CUT OFF IC
(IC304)
LM2480
15V
X-RAY
Protection
Vertical Blanking,
Circuit
Brightness Control
15V
- 160V
V-OUT
40V
( IC601)
TDA4866
FBT
( T701 )
H-OUT
( Q706)
B+
400V
H-Linearity
Correction
Dynamic
Focus
Circuit
STEP UP
H.V
DY CDT
15V
Auto
Beam
Limit