LG STUDIOWORKS 77M Service Manual page 17

< Front Control >
POWER
C-MIC
SELECT RIGHT
H/V POSITION LEFT
H/V SIZE BRIGHTNESS
SPPC CONTRAST
MICOM
AUDIO CONTROL
TRAPIZODE
VOLUME
PIN BALANCE
(IC401)
TREBLE
PARALLELOGRAM
BASS
TILT
MOIRE BALANCE
VIDEO LEVEL MICROPHONE
5V
COLOR CONTROL AUDIO MUTE
DEGAUSSING
OSD CONTROL
RECALL
LANGUAGE
INFORMATION
EXIT
2
E
(IC402)
6.3V
TILT
15V
Control
Circuit
Degaussing
Circuit
6.3V
TRANS
Line
Filter
SMPS
POWER INPUT
CONTROL
100~240VAC
(IC901)
(50/60Hz)
Signal
H-Sync Sig
Cable
V-Sync Sig
2
I C DATA(SDA)
2
I C CLOCK(SCL)
OSD IC
5V
(IC303)
2
I C
SCL / SDA
H/V Sync,
PWM Control
Sig
2
PROM I C
H/V Sync Processor
( IC701 )
TDA4856
2
I C
H/V
Sync
160V
125V
70V
15V
SMPS
12V
6.3V
(T901)
5V
15V
SOUND
DPM
VOLTAGE 15V
CONTROL
FEEDBACK
CIRCUIT
R
VIDEO VIDEO
G
PRE-AMP MAIN AMP
B
(IC302) (IC303)
8V
8V REG. CUT OFF
2
I C (IC304) CONTROL
12V
R/G/B R/G/B
Contrast Bias
X-RAY
12V Protection
Circuit
15V
V-OUT
40V
( IC601)
TDA4866
H-OUT
( Q706)
H-DRV B+
12V
H-Linearity
Correction
DC/DC Converter
B-DRV
160V
I 2 C
9V
REGULATOR AUDIO PRE-AMP
(Q1) (IC1)
AUDIO IN
MIC OUT TO PC
H.V
Heater ( 6.3V )
DY CDT
125V
8V
15V
Vertical Blanking,
Brightness Control
- 120V
30V
FBT
( T701 )
6.3V
Dynamic Auto
Focus Beam
Circuit Limit
D/D Feed Back
AUDIO AMP
SPEAKER
(IC2)