Service Manuals, User Guides, Schematic Diagrams or docs for : LG Video AC2501 AC250I_SB-SI_1273657385
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SECTION1 SUMMARY
KEY TO ABBREVIATIONS
A AC :Alternating Current LPF :Low Pass Filter
ACC :Automatic Color Control M MAX :Maximum
ACSS :Automatic Channel Setting System MD :Modulator
ADJ :Adjust MECHA.CTL :Mechanism Control
A/E :Audio Erase MIC :Microphone
AFC :Automatic Frequency Control MIN :Minimum
AFT :Automatic Fine Tuning MIX :Mixer, Mixing
AGC :Automatic Gain Control M.M. :Monostable, Multivibrator
A.H.SW :Audio Head Switch MMV :Mono Multi Vibrator
ALC :Automatic Level Control MOD :Modulation, Modulator
AM :Amplitude Modulation MODEM :Modulator-Demodulator
AMP :Amplifier MPX :Multiplex
ANT :Antenna
APC :Automatic Phase Control N NR :Noise Reduction
ASS'Y :Assembly O OSC :Oscillator
AUX :Auxiliary OSD :On Screen Display
B B :Base P PB :Playback
BGP :Burst Gate Pulse PCB :Printed Circuit Board
BPF :Bandpass Filter P.CTL :Power Control
BS :Brodcasting Satellite PRE-AMP :Preamplifier
BW or B/W :Black and White P.F :Power Failure
C C :Capacitor, Chroma, Collector PG :Pulse Generator
CAN :Cancel PLL :Phase Locked Loop
CAP :Capstan PREM.DET :Premire Detect
CAP.BRK :Capstan Brake P.P :Peak-to-Peak
CAP.RVS :Capstan Reverse PS :Phase Shift
CATV :Cable Television PWM :Pulse Width Modulation
CBA :Circuit Board Assembly PWR CTL :Power Control
CCD :Charge Coupled Device Q Q :Transistor
C.CTL :Chro Control, Capstan Control QH :Quasi Horizontal
CFG :Capstan Frequency Generator QSR :Quick Setting Record
CHROMA :Chrominance QTR :Quick Timer Record
CNR :Chroma Noise Redution QV :Quasi Vertical
COMB :Combination R R :Resistor, Right
Comb Filter RE(or RC) :Remocon, Receiver
COMP :Comparator REC :Recording
Composite REC S `H' :Record Start `Hight'
Compensation REF :Reference
CONV :Converter REG :Regulated, Regulator
C.ROT SW :Color Rotary Switch REMOCON :Remote Control(unit)
CS :Chip Selcet RF :Radio Frequency
C.SYNC :Composite Synchronization R/P :Record/Playback
CTL DIV :Control Divide RTC :Reel Time Counter
CUR :Current
CYL :Cylinder S S :Serial
S.ACCEL :Slow Accel
D D :Drum, Digital, Diode, Drain SAOP :Second Audio Program
D.ADJ :Drum Adjust SC :Scart, Simulcast
DC :Direct Current
S.DET :Secam Detect
D.CTL :Drum Control
SH :Shift
DEMOD :Demodulator
SHARP :Sharpness
DET :Detector
SIF :Sound Intermediate Frequency
DEV :Deviation
SLD :Side Locking
DHP :Double High Pass
S/N :Signal to Noise Ratio
DIGITRON :Digital Display Tube
SP :Standard Play
DL :Delay line
ST :Stereo
DOC :Drop Out Compensator
SUB :Subtract, Subcarrier
DUB :Dubbing
SW or S/W :Switch
D.V SYNC :Dummy Vertical Synchronization
SYNC :Synchronization
E E :Emitter SYSCON :System Control
EE :Electric to Eletric
T T :Coil
EMPH :Emphasis
TP :Test Point
ENA :Enable
TR :Transistor
ENV :Envelope
TRK :Tracking
EP :Extended Play
TRANS :Transformer
EQ :Equalizer
TU :Tuner, Take-up
EXP :Expander
F F :Fuse U UHF :Ultra High Frequency
FB :Feed Back UNREG :Unregulated
FBC :Feed Back Clamp V V :Volt, Vertical
FE :Full Erase VA :Always Voltage
FG :Frequency Generator VCO :Voltage Controlled Oscillator
FL :Filter VGC :Voltage Gain Control
FM :Frequency Modulation VHF :Very High Frequency
F/R :Front/Rear V.H.SW :Video Head Switch
FS :Frequency Synthesizer VISS :VHS Index Search
FSC :Subcarrier Frequency VPS :Video Program System
F/V :Frequency Voltage VR :Variable Resistor or Volume
G GEN :Generator V-SYNC :Vertical Synchronization
VTG :Voltage
H H :High, Horizontal
VV :Voltage to Voltage
I IC :Integrated Circuit VXO :Voltage X-tal Oscillator
IF :Intermediate Frequency
W W :Watt
INS :Insert
WHT :White
L L :Low, Left, Coil W/O :With out
LD :LED
X X-TAL :Crystal
LD VTG CTL :Loading Voltage Control
LECHA :Letter Character Y Y/C :Luminance/Chrominance
L.M :Level Meter YNR :Luminance Noise Reduction
LP :Long Play Z ZD :Zener Diode
1-1
IMPORTANT SAFETY PRECAUTIONS
Prior to shipment from the factory, the products are strictly inspected to confrom with the recognized product
safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such com-
pliance, it is equally important to implement the following precautions when a set is being serviced.
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