S Trap - LG 21SA1RL Service Manual

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