- 14 -
VERTICAL IC(IC301)
LA78141
V-IN
VCC
GND
V-
OUT
PUMP
-UP
V
E
R
T
D
Y
VERTICAL I/P
VCT VERTICAL O/P
RETRACE KINE
VERT SIZE PROBLEM
VERT IC O/P CAN DECIDE
GAIN
VCC SECTION (24V)
FBT SEC O/P VCC
FULL RASTER
VERT. PROTECTION ENABLE
CAUSES NO POWER
PUMP UP VCC
C307,D302
RETRACE LINE
POWER OFF
VERTICAL O/P DAMPING
& FILTER
R310,R315,C314,C305,C310
VERTICAL FOLDING
VERTICAL ROLLING NOISE
(HORZ LINE MOVING UP/DOWN)
VETICAL REFERECE SECTION
C313,C322
VERT SIZE PROBLEM
VERT LINEARITY PROBLEM
POWER OFF(PROTECTION ENABLED)
OUTPUT STAGE VCC SECTION
C307
VCT VERT. PROTECTION
ENABLE
POWER OFF
15300
15301
15303
15305
15304
15306
15308
FR301,D301,C303,C309,C306
O
/S
TA
G
E
V-REF
R305,R309,R311,C322
6. VERTICAL SECTION
H
O
R
Z
D
Y
FBT
T402
HORZ DRIVE SECTION
R403,R401,
Q401,T403,C404
H-OUT
47V VCC
DEFLECTI0N PROB
POWER OFF
HORZ O/P SECTION
Q402,C414
HORZ. DEF
COMPENSATION SECTION
HEATER
VOLTAGE
.FR401
X-RAY WORKING
SAFETY PROB
ROLLING PICT
180V VOLTAGE
FR501,D505,C540
HORZ LINE
NO RETRACE
MAIN VCC(110V)
DEFLECTION PROB
POWER OFF
STRANGE NOISE
COLLECTOR
C412 ,L401,L402,
INEARITY ADJ NOT WORK
HORZ SIZE PROBLEM
STRANGE NOISE
ANODE
FOCUS
SCREEN
14401
14402
14404
14410
26V VOL
FR301,D301
7. HORIZONTAL SECTION
Copyright©2009 LG Electronics.Inc. All right reserved.
Only for training and service purposes.
LGE Internal Use Only
