Table Of Contents - LG 21SA1RL Service Manual

CONTENTS
SAFETY PRECAUTIONS ...........................................................................................................................................................................3
ADJUSTMENT INSTRUCTIONS ................................................................................................................................................................4
TROUBLE SHOOTING..............................................................................................................................................................................12
EXPLODED VIEW .....................................................................................................................................................................................16
SCHEMATIC DIAGRAM ...............................................................................................................................................................................
PRINTED CIRCUIT BOARD..........................................................................................................................................................................
BLOCK DIAGRAM.........................................................................................................................................................................................
SPECIFICATIONS
POWER INPUT ....................................................................................................................................................... AC100-240V~50/60Hz
POWER CONSUMPTION ....................................................................................................................................................................85W
ANTENNA INPUT IMPEDANCE .....................................................................................................................VHF/UHF 75 ohm Balanced
CHANNEL RANGE
VHF .................................................................................................................................................................................................. 2-13
UHF ................................................................................................................................................................................................. 14-69
CATV(125) .................................................................................................................................................................01, 02¡›13, 14¡ ›125
INTERMEDIATE FREQUENCIES
Picture I-F carrier frequency........................................................................................................................................................45.75MHz
Sound I-F carrier frequency ......................................................................................................................................................41.25 MHz
Color Sub-carrier frequency ..................................................................................................................................................... 42.17 MHz
Center frequency ............................................................................................................................................................................44 MHz
CHASSIS CONSTRUCTION ..................................................................................................................................... IC-Solid state chassis
PICTURE TUBE ....................................................................................................................................... Type No. : A51QGV991X001(D)
SOUND OUTPUT .................................................................................................................................................................... 7W or 10W
CABINET ........................................................................................................................................................................................... Plastic
ABBREVIATIONS:
ADJ ...............................................................Adjustment or Adjust
AFC .................................................Automatic Frequency Control
AGC.......................................................... Automatic Gain Control
AMP .................................................................................Amplifier
CRT .................................................................Cathode Ray Tube
DEF ............................................................................... Deflection
DET.................................................................................. Detector
FBT............................................................... Flyback Transformer
H.V ............................................................................ High Voltage
OSC................................................................................ Oscillator
SEP................................................................................ Separator
SYNC ................................................................... Synchronization
S.I.F.............................................. Sound Intermediate Frequency
V.I.F ...............................................Video Intermediate Frequency
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Only for training and service purposes.
Used in this book
H ....................................................................................Horizontal
V ........................................................................................Vertical
IC ......................................................................Intergrated Circuit
OSD .................................................................On-Screen Display
SAP ......................................................... Second Audio Program
BPF .....................................................................Band Pass Filter
ST ...................................................................................... Stereo
LPF .......................................................................Low Pass Filter
DP .................................................................... Differential Phase
DG .....................................................................Differential Group
PLL ................................................................ Phase Locked Loop
APC ......................................................Automatic Picture Control
BM ....................................................................................B+ Main
BT .................................................................................B+ Tuning
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