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TELEVISOR A COLORESMANUAL DE SERVICIO
ATENCIÓNAntes de dar servicio al chasis, lea las PRECAUCIONES DE SEGURIDADen este manual.
CHASIS : CW81B
MODELO : 21FU6TLG 21FU6TLG-L4
MODELO : 21FU6TL 21FU6TL-L4
website:http://biz.LGservice.com
Internal Use Only
21FU6RL 21FU6RL-L4
- 2 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
CONTENIDO
PRECAUCIONES DE SEGURIDAD............................................................................................................................................................3
INSTRUCCIONES DE AJUSTE .................................................................................................................................................................4
SVC REMOCON .......................................................................................................................................................................................14
BÚSQUEDA DE FALLAS ..........................................................................................................................................................................15
DIAGRAMA EN BLOQUE .........................................................................................................................................................................19
VISTA EN DESPIECE ..............................................................................................................................................................................22
LISTA DE VISTA EN DESPIECE ..............................................................................................................................................................23
LISTA DE PARTES DE REPUESTO ........................................................................................................................................................24
DIAGRAMA ESQUEMÁTICO .......................................................................................................................................................................
TABLERO DE CIRCUITO IMPRESO ...........................................................................................................................................................
ESPECIFICACIONES
POTENCIA DE ENTRADA ..................................................................................................................................... AC100-240V~50/60Hz
CONSUMO DE ELECTRICIDAD ......................................................................................................................................................... 85W
IMPEDANCIA DE ENTRADA EN LA ANTENA .......................................................... VHF/UHF: 75 Ohmios desbalanceado (solamente.)
RANGO DE LOS CANALES
12 canales VHF..................................................................................................................................................................... Canales 2-13
56 canales UHF .................................................................................................................................................................. Canales 14-69
125 canales CATV ................................................................................................................................... Canales 01, 02 al 13, 14 al 125
FRECUENCIAS INTERMEDIAS
Frecuencia Intermedia portadora de la Imagen ........................................................................................................................ 45.75MHz
Frecuencia Intermedia portadora del Sonido ............................................................................................................................ 41.25MHz
Frecuencia sub-portadora del color ........................................................................................................................................... 42.17MHz
Frecuencia del centro ..................................................................................................................................................................... 44MHz
CONSTRUCCIÓN DEL CHASIS .................................................................................................. Chasis Estado Sólido ("solid state") I.C.
TUBO DE IMAGEN.................................................................................................................................................................A51QGT420X
SALIDA DE SONIDO ............................................................................................................... (a 10% de distorsión armónica) 3W (MAX)
GABINETE ................................................................................................................................................................... De Madera, portátil
ABREVIACIONES UTILIZADAS EN ESTE MANUA
AC ...................................................................... Corriente alterna
ACC ............................................... Control automático del croma
ADJ ..................................................................................... Ajuste
AFC ...................................... Control automático de la frecuencia
AGC ........................................... Control automático de ganancia
AF ..................................................................... Audio Frecuencia
APC ................................................... Control automático de fase
AMP .......................................................................... Amplificador
CRT ....................................................... Tubo de rayos catódicos
DEF ............................................................................... Deflexión
DET ................................................................................. Detector
DY ........................................... Yugo deflector ("deflection yoke")
ES ................................................... Electrostáticamente sensible
FBP .................................................................... Pulso de retorno
FBT ...................................................... Transformador de retorno
GND .................................................................................... Tierra
H.V. ............................................................................ Alto Voltaje
ITC ......................................... Centro intermedio de conmutación
OSC ......................................................................... Osciloscopio
OSD ............ Desplegado en pantalla ("ON SCREEN DISPLAY")
PCB ................................................. Tablero del Circuito impreso
RF ............................................................. RADIO FRECUENCIA
SEP .............................................................................. Separador
SYNC .................................................................... Sincronización
SVC ..................................... Controles de volúmen de la pantalla
S.I.F. ........................................ Frecuencia intermedia de sonido
V.I.F. ......................................... Frecuencia intermedia del video
H ................................................................................... Horizontal
V .......................................................................................Vertical
IC ...................................................................... Circuito integrado
- 3 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
PRECAUCIONES DE SEGURIDAD
ADVERTENCIA: Antes de dar servicio a este chasis, lea "PRECAUCIONES RESPECTO A RADIACION POR RAYOS X","INSTRUCCIONES DE SEGURIDAD" y "AVISO SOBRE SEGURIDAD DE PRODUCTOS"
Muchas de las partes, electricas y mecánicas en este chasis tienen caracteristicas relacionadas con la seguridad. Estascaracteristicas frecuentemente pasan desapercibidas en las inspecciones visuales y la proteccion que proporcionan contra laRADIACION DE RAYOS-X no siempre necesariamente se obtiene al mismo grado cuando se reemplazan piezas o componentesdiseñados para voltajes o vatajes mayores, etc. Las piezas que tienen estas caracteristicas de seguridad se identifican por lamarca impresa sobre el diagrama esquematico y la marca ★ impresa en la lista de partes. Antes de reemplazar alguno deesos componente, lea cuidadosamente la lista de este manual. El uso de partes de reemplazo que no tengan las mismascaracteristicas de seguridad, como se especifica en la lista de partes, puede crear Radiacion de Rayos-X.
1. El voltaje excesivo puede causar RADIACIÓN POR RAYOS"X" potencialmente peligrosa. Para evitar tales peligros, elvoltaje no debe exceder el límite especificado. El valornominal para el alto voltaje de este receptor es de 25KV enbrillantez máxima bajo la fuente especificada. El alto voltajeno deberá exceder, bajo ninguna circunstancia, de 28KV.Cada vez que el receptor requiera servicio, se debe verificarel alto voltaje y registrarlo como parte del historial de serviciodel aparato.Es importante utilizar un medidor de voltaje que sea preciso yconfiable.
2. La única fuente de RADIACION DE RAYOS-X en estereceptor de televisión es el tubo de la imagen. Paraprotección contínuada de la RADIACION DE RAYOS-X, elreemplazo que se haga del tubo debe ser con otro del mismotipo especificado en la lista de partes.
3. Algunas partes de este receptor tienen caractéristicasespeciales relacionadas con la protección contra RADIACIONDE RAYOS-X. Para que la protección sea continua, laselección de partes de repuesto se debe hacer solo despuésde haberse referido al AVISO SOBRE SEGURIDAD DEPRODUCTOS que aparece mas abajo.
PRECAUCIONES RESPECTO A RADIACION POR RAYOS "X"
1. Cuando el receptor está en operación, se producen voltajespotencialmente tan altos como 25,000-29,000 voltios. Operarel receptor fuera de su gabinete o con la tapa traseraremovida puede causar peligro de choque eléctrico.(1)Nadie debe intentar dar servicio si no está debidamente
familiarizado con las precauciones que son necesariascuando se trabaja con un equipo de alto voltaje.
(2)Siempre descargue el ánodo del tubo de la imagen a tierrapara evitar el riesgo de choque eléctrico antes de removerla tapa del ánodo.
(3)Descargue completamente el alto potencial del tubo deimagen antes de manipularlo. El tubo de la imagen es dealto vacío y, si se rompe, los fragmentos de vidrio salendespedidos violentamente.
2. Si se quemara algún fusible de este receptor de televisión,reemplácelo con otro especificado en la lista de partes.
3. Cuando reemplace tableros o plaquetas de circuitos,cuidadosamente enrolle sus alambres alrededor de lasterminales antes de soldar.
4. Cuando reemplace un resistencia de vataje (resistor depelícula de óxido metálico) en el Tablero o Plaqueta decircuitos, mantenga la resistencia a un mínimo de 10mm dedistancia.
5. Mantenga los alambres lejos de componentes de alto voltajeo de alta temperatura.
6. Este receptor de televisión debe conectarse a una fuente de100 a 240 V AC.
7. Antes de devolver este aparato al cl iente, haga unaverificación de fuga de corriente sobre las partes metálicasdel gabinete expuestas, tales como antenas, terminales,cabezas de tornillos, tapas de metal, palancas de control etc.,para estar seguro de que el equipo funciona sin peligro dechoque eléctrico. Enchufe el cordón directamente altomacorriente de la línea de AC 100-240V.
No utilice una línea aislada de transformador durante estaverificación. Use un voltímetro de 1000 Ohmios por voltiode sensibilidad o más, en la forma que se describe acontinuación.Cuando la unidad está ya conectada a la AC, pulse elconmutador primero poniéndolo en "ON" (encendiendo) yluego en "OFF" (apagando), mida desde un punto de tierraconocido, tal como una (cañería de metal, una manijametálica, una tubería etc.) a todas las partes metálicasexpuestas del receptor de televisión (antenas, manijas demetal, gabinetes de metal, cubiertas de metal, palancas decontrol etc.,) especialmente cualquiera de las partesmetálicas expuestas que puedan ofrecer un camino hacia elchasis. Ninguna medición de corriente eléctrica debe excederde 0.5 miliamperios. Repita la prueba cambiando la posicióndel enchufe en el tomacorriente. Cualquier medición que noesté dentro de los límites especificados aquí representan unriesgo potencial de choque eléctrico que debe ser eliminadoantes de devolver el equipo al cliente.
INSTRUCCIONES DE SEGURIDAD
AVISO SOBRE SEGURIDAD DE PRODUCTOS
DEVICEUNDERTEST
TEST ALLEXPOSED MET AL
SURFACES
2-WIRE CORD
ALSO TEST WITHPLUG REVERSED(USING AC ADAPTERPLUG AS REQUIRED)
EAR THGROUND
LEAKAGECURRENTTESTER
(READING SHOULDNO T BE ABOVE
0.5mA)
+-
Aparatobajoexamen
Probadorde fuga decorriente
La lectura no debeexceder de 0.5mA
Pruebe todaslas superficiesmetálicas
Tambien pruebe cónlos enchufes al reves(utilizando adaptadoren caso necesario)
Tierrasuelo
- 4 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
INSTRUCCIONES DE AJUSTE
1. Scope of ApplicationThese adjustment instructions are applicable to CW81A/BChassis.
2. Notes(1) Because this is a cold chassis, it is not necessary to use
an isolation transformer. However, operating it using a transformer between thepower supply line and chassis input to prevent electricshock and to protect the test instrument.
(2) All adjustments must be done in correct sequence.However, for better productivity, it can be changed in apre-permitted range.
(3) Environment conditions: If not specified, it must be done infollowing conditions.1) Temperature : 25°C ± 5°C2) Humidity : 65% ± 10%
(4) Power supply of SET : 100 ~ 240V ±10%, 50/60Hz(5) If not specified, the receiver must be operated for more
than 20 minutes prior to the adjustment.(6) Signal: Received the standard color signal. (65dB±1dBuV)
LG standard signal means the digital pattern 13CH(480NC)
(7) If not specified, APC ON is APC CLEAR (DYNAMIC).
3. AGC Voltage Adjustment
3-1. Necessary Instrument (1) Digital Multi-Meter : 1 set
- Max Input Current : Over 1A / Max Input Voltage : 500Vdc- Measurement Range : 10mV-100mVdc / Accuracy : 0.03%
3-2. Adjustment Preparation(1) Input in the 75X cable 65dB(±1dB) LG standard signal.(2) Connect the multi-meter to J105(AGC Check Marking)
3-3. Adjustment(1) Press the “INSTART” key of factory remote control and
select “VP0 (RF AGC)” adjustment mode.(2) Press the VOL +/-(F/G)Key until the multi-meter shows
reading as shown below.(3) CAUTION: Since the signal strength can be easily
changed by the condition of signal cable, you need tocheck the signal strength frequently in order to preventmisadjustment.
4. Screen Voltage AdjustmentUse factory Remote Control
(1) Input in the 75X cable LG standard signal (Digital Pattern,480NC)
(2) Press the “ADJ” key of factory remote control once tomake the TV set display horizontal line.
(3) Turn the screen volume on the FBT clockwise until thehorizontal line is visible and turn it counterclockwise untilhorizontal line faintly visible.(Exit screen voltage adjustment by press “Enter(V)” key offactory remote control.)
5. Purity and Convergence Adjustment
5-1. Purity Adjustment
(1) Adjustment Preparation1) Received Red Raster Pattern for purity adjustment (51CH).2) Demagnetize the CPT and Cabinet with a degaussing coil.
(2) Adjustment1) Pre-adjust the static convergence(STC) with the 4 and 6-
pole magnet.2) If the horizontal Line is inline with CPT Mark,2-Pole magnet
should direct 3-9 o’clock direction3) If not,direct 2-Pole magnet handle toward 6-12 o’clock
direction and adjust the Horizontal Line to fall onto themark opening the magnet at an angle.
4) Push the DY(deflection yoke) all the way to the CPT funnel.5) Turn the purity magnet(2-pole magnet) so that the “green”
color portion of left side and the “blue” color portion on theright side have equal amount of color.
6) Pull the DY slowly backward and fix it when the wholescreen becomes red.(The specified torque for fixing DY screw should be10Kg/cm.)
- 5 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
5-2. Convergence Adjustment
(1) Necessary Instrument1) Degaussing Coil2) Convergence fixing instrument(special tools)
(2) Adjustment Preparation1) Operate the unit at the least 15 minutes before adjustment.2) Using degaussing coil,remove the stains on CPT &
Cabinet.3) Received the Cross Hatch Pattern for Convergence (09ch).4) Let the Contrast in normal luminance level.
(3) Static Convergence (STC) Adjustment1) Received the Cross Hatch Pattern for Convergence (09ch).2) Before adjusting Static Convergence(STC),adjust the focus
first seeing to it that the WHITE color picture quality issharp enough.
3) Converge the RED vertical line and BLUE vertical line inunity(same line) by changing the angle between the 2 tabsof 4-pole magnet.
4) Converge the RED horizontal and BLUE horizontal lineunity(same line) by turning the 2 tabs of the 4-pole magnet.At this time,do not change the angle between the 2 tabs.
5) Converge the R,G,B vertical line in unity(same line) bychanging the angle between the 2 tabs of the 6-polemagnet.
6) Converge the R,G,B horizontal line in unity(same line) byturning the 2 tabs of the 6-pole magnet. At this time, do notchange the angle between the 2 tabs.
(4) Dynamic Convergence (DYC) Adjustment1) Y-Axis Adjustment :Adjust convergence of Y-axis(vertical)
by moving the deflection yoke(DY) left and right.2) X-axis Adjustment: Adjust convergence of X-axis
(horizontal) by moving the deflection yoke(DY) up anddown.
6. White Balance Adjustment
6-1. Necessary Instrument(1) Auto white balance meter (Low/High Light Pattern
generator)(2) CRT Color Analyzer, CA-100 :1 set(3) Factory Remote control
6-2. Adjustment preparationPrior to this adjustment, the Screen Voltage adjustmentshould be finished.
6-3. Auto Adjustment (1) Adjust using Auto White Balance Meter.(2) Enter CPU OFF mode by press the “IN-START” & “MUTE”
key of factory remote control in turn before adjustment. Exit CPU OFF mode by press the “MUTE” key of factoryremote control after adjustment finished.
[ In case there is excess RED color at screen voltageadjustment, adjust it using “Volume - (F)” Key of factoryremote control until the RED color disappear.
6-4. Manual Adjustment(1) Adjust using white balance meter and factory remote
control.(2) Enter white balance adjustment mode by press “IN-
START” key of factory remote control.(3) Use the CHD, CHE key to choose adjustment item.(4) Use the VOLF,VOLG Key to change item data.
(5) Adjustment Procedure1) Make the picture luminance 45Ft-L by change the
“ONTRAST” and “BRIGHTNESS”. 2) Adjust X data of high light with R DRIVE and Y data of
high light with B DRIVE to have color temperature asshown below.
3) Make the picture luminance 4.5Ft-L by change the“CONTRAST” and “BRIGHTNESS”.
4) Adjust X data of low light with R BIAS and Y data of lowlight with B BIAS to have color temperature as shownbelow.
5) Repeat steps 1)~4) until both low and high light havesame reading as shown below.
7. Focus Voltage AdjustmentAdjustment must be done after operating the TV set receiversufficiently.
7-1. Adjustment PreparationReceived the LG standard pattern(Crosshatch pattern, Ch.09)and set the picture condition on “APC ON” (CLEAR) mode.
7-2. AdjustmentTurn the focus volume on the FBT upper direction to have thebest focus vertical line (A) and horizontal line (B) as shownbelow.
Color Temperature
13000
X-AXIS
268±5
Y-AXIS
273±5
- 6 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
[ In ultra NTSC model, do in the signal of Ch.09 (Crosshatchpattern
8. SUB-BRIGHTNESS AdjustmentThis adjustment must be done after the White balanceAdjustment.
8-1. Adjustment Preparation(1) Received LG standard Mono scope pattern (CH14).(2) Set the picture condition on “APC ON” (CLEAR) mode.
8-2. Adjustment(1) Press the “ADJ” key of the factory remote control twice to
enter to “SUB-BRIGHTNESS” adjustment mode.(2) Change the Sub-Brightness data by pressing the VOL F,
VOL G KEY so that the number 1 in gray scale of monoscope pattern almost disappear.In the ultra slim, Do until the number “1” completelydisappear.
9. Sub-Tint AdjustmentThis adjustment has to be done only if the picture has bad tintotherwise, it can be omitted if the picture has good tint.
(1) Received LG standard pattern signal (SMPTE, 2CH).(2) Set the picture condition on “APC ON” (CLEAR) mode.(3) Press the “ADJ” key of the factory remote control three
times to enter to “SUB-TINT” adjustment mode.(4) Change the Sub-Tint data by pressing the VOL F, VOL G
Key until the upper and lower CYAN color becomes samecolor.
10. Deflection Setting Data AdjustmentThese adjustment will be done by Auto Adjustment Equipment.For manual adjustment, it is also possible by the followingprocedure.
10-1. Adjustment Preparation(1) Deflection setting data adjustment can be done only with
remote control.(2) Press the “INSTART” Key on the factory remote control
continuously to enter to Deflection Adjustment mode.(3) Press the CH D, E Key to select adjustment item.(4) Press the VOL F, G Key to change the data.
10-2. Adjustment(1) Horizontal Position Adjustment
Select SVC02 (H-POS) and adjust so that the left and rightvertical line are symmetrical as possible.
(2) Vertical Position AdjustmentSelect SVC02 (V-POS) and adjust so that the horizontalcenter line coincide with geometric horizontal center of theCPT.
(3) Vertical Size AdjustmentSelect SVC02 (VA) and adjust so that the middle circle ofthe Digital Pattern (480NC, 13CH) coincide with theeffective screen of CPT.
10-3. Adjustment (21” Super Slim, UltraS/S Model)
(1) Vertical Position AdjustmentSelect SVC02(V-POS) and adjust so that the horizontalcenter line coincide with geometric horizontal center of theCPT.
(2) Vertical Linearity Adjustment.Select SVC02(V-LIN) and adjust so that the size of theupper circle is alike with the one of the lower circle at LGstandard pattern signal (PAL : EU05CH, NTSC : 13CH).
(3) Vertical Size Adjustment.Select SVC02(VA) and adjust so that the middle circle ofthe Digital Pattern (480NC, 13CH) coincide with theeffective screen of CPT.
(4) Horizontal Position AdjustmentSelect SVC02(H-POS) and adjust so that the left and rightvertical line are symmetrical as possible.
(5) Horizontal Size AdjustmentSelect SVC02(EW WIDTH) and adjust so that the outerline of the left, right and the remotest grid will correspond tothe effective boundary surface.(The remotest grid, within 2.5 ~ 3.0 column)
(6) Parabola AdjustmentSelect SVC02 (EW PARAB) and adjust so that the verticalline of the remotest grid at the left or right side of thescreen will be parallel to the vertical line of the center ofscreen (or the remotest grid of CPT)
- 7 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
(7) Trapezoidal AdjustmentSelect SVC02(EW TRAPE) and adjust so that the width of theupper part of screen is alike with the one of the lower part ofscreen.
(8) EW UPCOR/ LOCOR AdjustmentSelect SVC02(EW UPCOR, EW LOCOR) and adjust so thatthe vertical line in the four corners become straight line.
(9) BOW AdjustmentSelect SVC02(HP BOW) and adjust so that the vertical line inthe four corners become straight line.
- 8 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
11. IIC BUS Adjustment Data Table
- 9 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
- 10 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
- 11 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
- 12 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
- 13 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
- 14 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
- 15 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
- 16 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
12. EEPROM Option Table
- 17 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
- 18 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
SVC REMOCON
- 19 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
DIAGRAMA EN BLOQUE
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- 20 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
VISTA EN DESPIECE
112
510
170 150
520
174
400
A2
A21
300120
330
320
101
102
103
560
570
- 21 -Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
LISTA DE VISTA EN DESPIECE
101 4980V00265A Supporter,MOLD HIPS NON HIPS PCB PS 40AF FBT CA-14T30
102 343-B52A Supporter,MOLD HIPS Supporter HIPS .
103 MJH41432101 Supporter,MOLD HIPS 51SF Supporter HIPS 51SF CPT 2nd LGERS EXPORT
112 EAK39334404 CPT,ITC A51QGT420X 31 K 21INCH Ultra Slim +0.2G 4/3 60HZ 6150Z-6222A LG PHILIPS
120 EAB33496901 Speaker,Full Range 5B084 ND 10W 8OHM 82DB 140HZ 147 X 42 X 31 LUG ESTEC ELECTRONICS
150 EAP39589601 Coil,Degaussing 16.3ohm AL 44Ts 0.5mm SQUARE 21INCH 2500mM WIRE=300mM L11:190mm
170 6858V21001A Drawing,Assembly EARTH SPRING 21INCH 64T RT-21FDRX
174 174-019S Power Cord Assembly,KPC-10WL/YFH-800-02/SPT-2(length:300mm) KJ-10 YFH-800-02 2.13M
300 ABJ35609302 Cabinet Assembly,21FU6RL-T4 CW81B 21 LGERS
320 320-062H Spring,CUTTING STSC304 COIL STSC304 - - NONE
330 MBG41428401 Button,Power MOLD ABS HF-380 21FU6 ABS HF380 POWER 2nd LGERS EXPORT
400 ACQ35867503 Cover Assembly,Rear 21FU6RL-T4 CW81B 21 LGERS
510 EBR49015302 PCB Assembly,SUB M.I CW81B 21FU6TL-L4 CPT BOARD .
520 EBR43378905 PCB Assembly,MAIN M.I CW81B 21FU6TLG-T4 KWPQCCR .
560 EBR49016002 PCB Assembly,CONTROL M.I CW81B 21FU6TL-L4 KEY -CONTROL .
570 EBR49016302 PCB Assembly,SUB M.I CW81B 21FU6TL-L4 LED+IR .
A2 MKJ33981409 Remote Controller,COMPLEX MC059A 21FD15G OLD_6710V00090N SC023A MC059A
No. Part No. Description
Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
PUMP-UP
V-I
N
VC
C
PU
MP
GN
D
V-O
UT
ST
AG
E
V-R
EF
O/
-UP
CEM
INOUTGNDS
V-DY
H-DY
WARINNG BEFORESERVICING THIS CHASSIS, READ ’X-RAY
RADIATION PRECAUTION,’ ‘SAFETY PRECAUTION’ AND PRODUCT
SAFETY NOTICE IN THIS MANUAL
CAUTION : THE MARKS IN THE SCHEMATIC DIAGRAM AND THE PARTS LIST DESIGNATE
COMPONENTS WHICH HAVE SPECIAL CHARACTERISTICS FOR SAFETY, AND SHOULD
BE REPLACED ONLY WHICH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT OR
SPECIFIED IN THE PARTS LIST. BEFORE REPLACING ANY OF THESE COMPONENTS,READ
CAREFULLY THE PRODUCT SAFETY NOTICE IN THIS MANUAL.
DO NOT DEGRADE THE SAFETY OF THE RECEIVER THROUGH IMPROPER SERVICING.
A0
A1
A2
GND SDA
SCL
TEST
VCC
KS
SAW
I.REF
GND OUT
Vcc
EW
SIZE
Y
Cb
Cr
STEREOPLL
PILOTPLL
PILOT
PILOT
LEVEL DET
CANCELLER
REGULATOR
MODEOUT
MATRIX
-6dB
L-RDEMOD
SAPDEMOD
SAP BPF
SIF DEMOD
LPFSAPDET
ST/SAPSW LPF
LPF dbx processor
OffsetCancell
SYSTEMCONTROL
I2CDECODE
ControlSTSAP
Sp
ectr
al
RM
S D
ET
Address
MUTE
L-R/SAP
MUTE
L+R
R-OUT
R-IN
L-OUT
L-IN
B
D/S
GR
FB
V-OUT
V-IN
5
4
2
1
8
6
7
3
10
9
11
12
RippleFilter
+OUT2
-OUT2
+OUT1
-OUT1
Input AMP
Out AMP
Out AMP
Vcc Standby
IN1
PREGND
MUTE
IN2
Input AMP
PowerGND
TIMER0
RESET
ADC
V DET
R
I/O
RESET
G
PORT 1
B RAM
RST
FS
I
XTSEL
CPU
CPU CLOCK
CORE
VDD3
BASETIMER ROM
OSD
DATA
VDD5
BUS
CLOCK
CVBS
CLOCK
VS
PET_IN
CONTROL
AFT
C_SYNC
HS
POWER_IN
PORT 0I/O
TEXTTELE
PLL
BUS
HSVS
ABLACL
DRIVE/CUT-OFF
OSDSW
OSDCONTRAST
OSDCONTRASTBRIGHT
HORC/D 1/256
HORVCOAFC1
HOROUT
PHASESHIFTER
FBP
HORVCC
AFC2
VERRAMP
VERC/D
SEPVER
SYNCSEP
E/WAPC1VXO
VCOAPC2 DDSFSC
(EHT)
1CHIPVDD
IFAGC AGC
RF SPLL BPF
DET900K
AMPVIF
DETSOUND
DETVIDEO
AMPVIDEO TRAP
VCO
AMPFM
DETFM LIM
AMP BPF
MATRIXRGB
CLAMPCOLOR
TINTCOLORCLAMP
DC ADJSW
SEOAMDECODER
CLMP
PAL SWDEMO
DCREST
BSSGSHARP
DL
BPF
SWV/Y
ADCYC SW
TRAP
CLMP
SWVIDEO
DCVOL
SW
SW
TONE
RGB SWEXT
CONTRASTEXT RGB
DRIVECUT-OFF
SW
IF
NC
30V
NC
5V
SDA
SCL
CS
NC
AGC
16bit DAC
(MONAURAL)SRC
(STEREO)
16bit DAC
(A2/DQPSK)
DEMODULATOR
DECODERNICAM
ADCPGA(AGC)+10bit
IIC
PLLOSCILATOR
AMP
98.304MHz
18.432MHz
8
14
13
9
12
11
10
1
2
5
7
RE
G
BU
FF
MO
DE
SE
LE
CT
DE
T
AL
C
AL
C
6d
B
BU
FF
BU
FF
BU
FF
INOUTGNDS
SCL
SDA
EW
GA
ME
/FM
_D
AT
A
GA
ME
_C
LK
/FM
_C
LK
SPK_L
MU
TE
EY
E
MU
TE
EW
PO
WE
R/F
M_
CE
IR
FR
ON
T/S
IDE
-R
RE
AR
-R
RE
AR
-L
FR
ON
T/S
IDE
-L
SPK_R
REAR-L
SID
E-R
SID
E-L
SID
E-V
FRONT-V
FRONT-L
RE
AR
-L
VE
R-O
UT
HOR-OUT
FBP
B-OUT
G-OUT
R-OUT
AB
L
R-O
UT
G-O
UT
B-O
UT
VIF
_IN
2
SDA
SCL
SD
A
IR
SDA
SCL
TV
-R
VIF_IN1
RE
AR
-R
MN
T_
L-O
UT
MN
T_
R-O
UT
FB
_IN
AV
1-I
D
DV
D-Y
/G_
IN
DV
D-C
b/B
_IN
RE
SE
T
HO
R-O
UT
RF
_A
GC
MN
T_
L-O
UT
EX
T_
R-I
N
EX
T_
V-I
N
TV
-L
TV
-R
GAME_ID//FM_CE
GAME_DATA/FM_DATA
EY
E
DOWNLOAD
DOWNLOAD_CLK
DOWNLOAD_DATA
GAME_CLK/FM_CLK
DV
D-C
r/R
_IN
RE
AR
-V
MNT_V-OUT
HS
FB
P
HS
VS
FR
ON
T/S
IDE
-V
DV
D-C
b/B
_IN
FB
_IN
DV
D-C
r/R
_IN
DV
D-Y
/G_
IN
FB
_O
UT
DV
D-C
r/R
DV
D-Y
/G
DV
D-C
b/B
FR
ON
T/S
IDE
_L
EH
T
NIC
AM
_R
ES
ET
VIF_IN2
FRONT-R
REAR-V
RESET
NIC
AM
_R
ES
ET
FM_ON_OFF
DEGAUSS
AB
NO
RM
AL
SC
L
SD
A
AV
1_
ID/D
OW
NL
OA
D_
DA
TA
DE
GA
US
S/F
M_
ON
_O
FF
/US
B_
SW
/DO
WN
LO
AD
KE
Y
SP
K-L
SP
K-R
VIF
_IN
1
RF
_A
GC
FR
ON
T/S
IDE
-V
SC
L
SD
A
EX
T_
V-I
N
SD
A
SC
L
MN
T_
L-O
UT
RE
AR
-V
FR
ON
T/S
IDE
-V
RE
AR
-V
PO
WE
R/F
M_
CE
EH
T
PO
WE
R/F
M_
CE
VER-OUT
VS
ABNORMAL
POWER/FM_CE
DV
D-Y
/G
DV
D-C
r/R
DV
D-C
b/B
SIF_OUT
PAL/NTSC
SIF
_O
UT
MN
T_
R-O
UT
MN
T_
V-O
UT
FB
_O
UT
TV
-L
EX
T_
L-I
N
EX
T_
R-I
N
KE
Y
EX
T_
L-I
N
AB
L
IR
SC
L
GID
/SW
/DL
POWER
TV
-R
TV
-L
TO DG COILP802
1
2
STV9326IC301
1 2 3 4 5 6 7
D815TVR06J
RL8016920VB1001E
100R906
1.6/2W (RF)FR401
30K(RN)R311
0.1uFC210
560R524
3.9KR510
100uF10V
C28
1N4148D405*
2.7KR307
P6
330uF10V
C108
18KR108
0.01uFC534
1N4148D902
4.7KR803
1N4148D403
1.5K/0.5W
R919
1N4148D603
3.3KR501
1.5/0.5WR310
100R562
470pC229*
75R100*
47R401
0.5W
1.0/0.5W(RF)
R303
100KR150
0.1uF50V
C527
P011 2 3
C607*10uF16V
T/WL212
100R564
470P/500VC303
P119
1
2
3
4
5
0.47uF50V
C524
220R516
P601
1
2
3
10KR60
0.01C548*
1uF50V
C760
0.01uFC510
680R72
1N4148D604
T/WR614
1000uF16V
C850
1KR565
470pC225*
1N4005D302
T4AL250VF801
470PC233
100J554
1000uF16V
C826
1uF50V
C757
ABL
0.1uF50V
C517
0.05/0.5W (RP)
FR501
MO
NO
J6
36
100uF10V
C518
C5182P
123AFB905*
0.1uFC506
100R505
150R404
180/2W(RS)
R315
T/WL904
100J509
470pC222*
P201
123456
R663.3K
0.01uFC633
P703
1
2
3
100uF10V
C833
T/WL903
C295
10uF16V
1000PC107
T802
6200JB8008G150-06T
T804 150-F06T
1
2
3
4
BF421Q403
10KR618
12KR522
4.43MHzX501
0.047uFMYL
C533
1N4148D501
(10u)J/WL216
390R922
1/7WR801
75R252
CHOKE82uHL802
4.7uF50V
C415
470uF35V
C309
125-022RFB801
620/0.5WR302*
1.5KR409
1.6KR18
CH+(PR+)SW16
220R69
T/WL901
470pC223*
2UHFB201
1500PC516
100R506
1.2KR17
560P/2KVC417
2SC6092(SS/ULTRA)2SC6093(Normal/FLAT)
Q402
47K/2W(RS)
R804
T/WL211
SK901
KIA78R09APIIC804
12
34
C56*330P
VOL-SW13
P602
1
2
3
4
75R250
P02A 12345
1/2W150R236
100KR109
1000P/1KV
C813CK
C60547uF16V
RU3AMVD813
10uF16V
C756
L-HP
18K(RN)R301
18K/2W(RS)
R912
C26330uF10V
0.1uFC211
CH-(PR-)SW15
T/WL224
HIC291
1 2 3 4 5 6 7 8
470KR858
0.5
P401
1
2
3
4
4.7uF250V
C901
10.5V
10uF25V
C407
9.1VZD502*
0.68uF50V
C312
680R531
1.2/0.5W(SS CPT)*
FR932*
SW801(SUB:SW1801)
1N4148D805
0.01uFC767*
T/WL225
P902
1
2
3
4
5
6
7
8
9 C2330-YQ901
47uF16V
C308
75R249
5.1VZD804*
0.01uFC764
4.7uF50V
C242
(PHONE)JA01
234567
1
PC17L1IC802
1
2
4
3
(RC)8.2M/0.5WR814
510R530
RU3AMVD826
1.5K/0.5WR920
39/2WRS
R132
T/WL221
100KR408
GA
ME
-VID
EO
0.01uFC806*
470PC231
T/WL902
P03A
1234
100R760
270PC902
GA
ME
-AU
DIO
1000uF35V
C831 0.05/0.5W(RP)
FR825
4.7uF250V
C540
15KR312
16V10uFC201
Q6722SC5343
(MPP)153/2.0KV
C414
10KR410
CPT EARTHP910
1
10uL230
C103MQ301
103C538*
(PP)223/200V
C514
AFC
75KR705
4.7KR58
0.1uFC212
33K/0.5W(RS)
R110
P101
123
75KR706
VD801TVR621D
P1
1KR154
18KR617
3900uFMYL
C301
300R513
36K(RN)R518
100510
R523
100uF10V
C409
1/2W150R235
1N4148D847
Q10C3198Y
P801
AC-IN
1
2
100uF10V
C853
100J501
100uF10V
C511
1000PC805
1kV
P902-1
1
2
3
4
5
Q845C5343Y1
2
3
330R504
9.1VZD504*
240KR420
22K(RN)
R512
0.1uFC612
100V
9.1VZD503*
0.01uC855*
100R921
10KR607
1KR615
36KR552
10uF16V
C763
C300.01
123AFB805*
1uF50V
C759
100R916
4.7KR831*
470PC234
2.2M/0.5WR902
1.8KR908
0.05/0.5W(RP)
FR301
100R761
1.0/0.5W(RF)
R304
100PC130*
10UHL502
C102MQ813
R-HP
L-SPK
330uF450V
C803
0.01uFC535
5.1VZD102
SFAF504GD824
0.033uFMYL
C17
620R20
100uF35V
C307
270PC904
2KR616
D2SB60 (Normal/FLAT)
DB801TS4B05G(ULTRA/SSlim)DB802
2KR612
12K(RN)R519
1N4003D901*
75R251
0.47uF50V
C531
CK470P/1KV
C821
KIA78L05BP
IC04
1
2
3
4.7KR82
510R553
103C106*
10UHL217
1N4148D303
82KR306
100KR22
100UF10V
C832*
10uF16V
C110
T/WL223
TV/VIDEO(MENU)SW11
163-051F(3P)TH801
TH802163-054D(2P)
1.2/2W(RF)
FR403
4.7KR23
75R211
0.1uF50V
C702
1000PC294
43KR308
T/WL222
C2330-YQ902
390R905
1N4148D601
CPT
1uF50V
C762
0.01uC601*
VOL+SW14
220PC236
1MR42
MENU(OK)SW12
10UHL218
1N4148D602
470PC232
1uF50V
C761
100KR11
K7260M(PAL)
Z111M1971M(NTSC)
12345
15KR554
P5
BA282D111
33VZD103
12K(RN)R305
EBJ34806701
T402
1
2
3
4
6
5
7
8
9
10
P902-2
1
2
3
4
10K/0.5W(RS)
R550
2.0K/0.5WR403
220PC237
470pC226*
0.1uF275V
C802
T/WL3
EU1ZVD804*
A1266Q601
220R65
100R41
47K/2W(RS)
R805
1200P/2KVC908
0.1uF50V
C704
2.2uF50V
C16
2.2R604
T/WL213
2200P/4KVC843
0.1uF MYL
C314
0.22uFMYL
C310
100KR621*
100uF10V
C40
10K/0.5WR407
180V
47KR826
(CK)470P/1KV
C812
680R1
120R555
390R915
4.7KR825
100PC131*
1uF50V
C313
18K/2W(RS)
R923
3.9KR509
2.2KR113
5.6/2W(RS)
R620
4.7KR21
2200uF25V
C311
270PC907
22K(RN)R313
220uF160V
C814
220R514
100uF16V
C766
TVR06JD505
220uF10V
C246
0.33uF50V
C15
C3228Q401
56K/0.5WR547
CK470P/500VC404
75R226
9.1VZD412*
10000pFC322
0.01uFC20
1000PC804
1kV
82KR423
2.2KR112
C2330-YQ903
10uF16V
C765
1N4148D502*
J6
17
560R19
39R515
0.01uFC507
1uF50V
C758
4.7uF50V
C243
3.9KR508
4.7KR111
TVR06JD301
125-022RL804
LEDLD11
21
100uF160V
C835
0.047uFMYL
C306
470PC235
39KR502
220PC541
1uF50V
C504
300R421
4.7KR832
1.5K/0.5W
R918
100uF10V
C526
J6
37
*
C523100uF16V
IC02
24C04/24C16
1
2
3
4 5
6
7
8
0.01uFC101
8.2/0.5WR873
100R563
10uL231
10uF50V
C103
30KR532
330uF25V
C602
18K/2W(RS)
R917
100R507
T/WR556
10uF100V
C408
750R16
220KC215*
R-SPK
100PC19
C5082P
*560
R535
KIA7805APIIC803
1
2
3
J116T/W
4.43MHz TRAPZ601
0.01uFC116
PA01
123
151-C02BH-DRIVET403
1
2
3
4
FRONT AVJA02
0.01uFMYL
C432
1N4148D411
620R462330
R463
1KR461
3.9KR460
100KR459
6mHL401
26.5uHL402
334/400V
C412
273/630VC406
RS4FSD406
RU4AMD407
20KR455
6.8KR309
IC401TDA8145
1
2
3
4 5
6
7
8
1K/1W(RS)R416
120KR456
5.1KR414
2.7K/2W(RS)
R406
2.7K/2W(RS)R316
C551*
0.068uFMYL
C305*
22uF50V
C509
3.0K/2W(RS)
R402*
J106
C5343Q16
J117T/W
0.02/0.5W(RP)
FR816
15KR451
1KR450
5.6KR517
39KR457
0.047uFMYL
C434
473/630V
C401
450uHL404
334/400VC402
1.6mHL403
1KR845
J811T/W
4.7K(RN)R844
1KR841
9.1VZD851
39KR843
0.022uFMYL
C818
47R840
Q801C5343 3.9K
R835
47uF10V
C828
91K(RN)R815
91K(RN)R816
30K(RN)R842
KA431Q840
1uF250V
C847
T/WR884
0.022uFC502
330R537
C512*
1KR13
2.2uF50V
C13
JA01(DVD)
0.1uFC613
2.2R601
2KR611
2.2R603
4.7uF50V
C603
ST
J6
11
C6082.2uF50V
2.2R602
100R609
2KR605
C61147uF25V
0.1uFC614
0.018uFMYL
C609
0.1uFC606
0.018uFMYL
C604
4.7uF50V
C610
100J517
9V
9V
9V
9V
9V
9V
S-Vcc
S-Vcc
5V_1
5V_1
5V
_1
5V
_1
5V
_2
30V
30V
J13T/W
ST-5V
ST
-5V
ST
-5V
ST
-5V
ST
-5V
100KR622*
9V
620R528
J227T/W
5V_1
ST-5V
50V1uFC648
50V4.7uFC676
22uF50V
C681
LA
72
70
2IC
60
5
1 2 3 4 5 6 7 8 9 10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1uF50V
C666
1uF50V
C6381uF50V
C6702.2uF50V
C657
47uF10V
C691
10uF50V
C67510uF50V
C672
4.7uF50V
C6564.7uF50V
C65422uF50V
C682
4.7uF50V
C642
0.1uFC645
0.1uFC678
100R666
100R665
4.7KR678
10UHL604
5V
_1
JA01(FULL SCART)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
100R503
75R203 100
R202
100KR207
240KR208
1uF50V
C22
IC601
100R542
100R543
R250T/W
100R561
100uF10V
C521
1uF50V
C675
1uF50V
C672
39KR539*
P5
51
B@
va
lue
10987654321
P5
51
A@
va
lue
10987654321
J568T/W
J222T/W
J224T/W
J225T/W
J226T/W
R415T/W
330PC688
330PC687
2.2uF50V
C6830.1uFC633 0.1uF
C631
560KR667
5V
_1
0.1uFC673*
5V_1
0.01uFC632*
0.01uFC630*
47uF10V
C681
0.01uFC684
0.01uFC668*
47uF10V
C685*
0.01uFC662* 0.01uF
C661
0.01uFC680
0.01uFC645*
0.01uFC631
1.5
V
3.3
V
1.5
V
0.1uFC63547uF
10V
C670 0.1uFC634
0.1uFC665
0.1uFC667
47uF10V
C666
T/WR631
12pFCC
C68912pFCC
C690
18.432MHzX661
1MR630
SIF S
IF
10kR668
100R666
100R665
10KR661*
10KR664*
330pC653
1KR662
1kR633
4.7uF50V
C672
4700pC687
4.7uF50V
C675
4700pC688
1kR632
Z6024.5MHz
1 3
2
J721*T/W
P211A
1 2 3 4
IC810W6553A(MONO)W6554A(STEREO)
1
2
3
4
5
6
7
2201/2W
R838
6.8KR807
30R810
J842T/W
D845UF4005
22uF50V
C840
0.1uF50V
C841
0.01uFMYL
C852
1000pF1.6KV
C817
221/2KVC859*
?C807*
?C808*
125-022KFB810
125-022KFB844
J843T/W
75KR839
39K(RN)R806
3300pFMYL
C842
15VZD846
5.6KR808
IC5
01
LV
76
2xx
EX
T-R
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1
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8
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9
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10 C
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1 4.4
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Hz
12 C
B_
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3
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14
Ch
rom
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HT
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5
EW
16 V
ER
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17
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P1
8 VC
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9
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VC
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20 A
FC
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R2
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22 F
BP
23 C
PU
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[ST
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4 FIL
T2
5 CP
U_
VD
D2
26 P
00
27 P
01
28 P
02
29 P
13
30 P
14
31 P
15
32
FM
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UT
[MO
NI-
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4
FM
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TE
R6
3
IF_
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62
VID
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VIF
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0
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C-F
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59
RF
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8
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15
7
VIF
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25
6
IF_
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D5
5
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4
AP
C-F
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ER
53
SIF
SIF
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52
SP
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1
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0
RG
B_
VC
C[9
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R_
OU
T 48
G_
OU
T 47
B_
OU
T 46
AB
L 45
1C
HIP
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4
CP
U_
GN
D 43
FIL
TS
LC
42
RE
SE
T 41
P0
7 40
P0
6 39
P0
5 38
P0
4 37
P0
3 36
P1
7 35
P1
6 34
P1
1 33
4.7uF50V
C280
??C845*
TU1016700MF0018A(CIS)6700MF0018B(PAL)6700NFNS11E(KOREA)6700NFNS11F(NTSC FR TYPE)6700NFNS11G(NTSC PHONE TYPE)6700NFNS11H(NTSC DIN TYPE)
100uF10V
C636
100uF10V
C615
1.5V REG.IC606
1
2
3
3.3V
1.5V
10KR541
2200P/500VCK
C421
330/0.5WR441
J403T/W
0.1uF50V
C677
5V
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5V_1
5V
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5V_1
T/WR853
J413T/W
0.022uF50V
C574
0.01uF?
1000pC549*
330KR538*
100R511
1.2UHL528
5.1MR684
2.2MR654
0.1uFC664
C114*0.1uF
J830T/W
J402T/W
J303T/W
J306T/W
J301T/W
J401T/W
60uHL405*
?L406*J404*
T/W
J814T/W
0.1uF275V
C816
123AFB817*
?C839
J810T/W
6322A00030ATH803*
J906 T/W
J903T/W
J905T/W
1N4003D903
J907T/W
J620T/W
?C627*
J607T/W
30PC552*
IC6
51
LC
75
02
4E
AV
DD
33
1
AO
UT
R2
AV
SS
3
LR
VR
EF
4
AV
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33
5
NC
6
AO
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L7
AV
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33
8
VR
T9
VC
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10 V
RB
11
SIF
21
2
AV
SS
13
AV
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33
14 A
VD
D3
31
5
AV
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16 A
VD
D1
51
7
AV
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18 X
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33 4
2
MR
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0
NC 3
9
AV
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33 3
8
TE
ST
B1 3
7
TE
ST
B0 3
6
TE
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5
NC 3
4
NC 3
3
NC 3
2
NC 3
1
IOV
SS 3
0
IOV
DD
33 2
9
RS
TB 2
8
SD
A 27
SC
L 26
SA 2
5
DV
DD
15 24
DV
SS 2
3
XV
DD
33 2
2
5V
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J720T/W
J705T/W
J281T/W
J704T/W
T/WJ673
T/WJ703
T/WJ641
T/WJ652
T/WJ642
1KR633
1KR632
T/WJ651
T/WJ643T/W
J653
T/WJ672
J527T/W
T/WR40
T/WJ562
J519T/W
T/WJ508
J112T/W
T/WJ111
10UHL663 J633*
T/W
10UHL662
T/WR654
T/WJ645
T/WJ641T/W
J648T/W
J642
T/WJ647
47uF10V
C650
J22T/W
J23T/W
T/WJ525
J555T/W
J541T/W
T/WJ109
4.7uHL503
T/WJ101
T/WJ558
T/WJ552
T/WJ201
T/WJ557
T/WJ507
0.01uFC562*
0.01uFC563*
0.01uFC564*
0.018MYL
C542*
0.1(PP)
C545
?R521*
T/WJ524
T/WJ560
9.1VZD407*
T/WJ513
T/WJ528
T/WJ532
T/WJ504
4.7KR566
T/WJ706
T/WJ707
T/WR701
T/WJ521
T/WR704
T/WJ503
T/WJ506
T/WJ24
T/WJ522
T/WJ559
0.01uFC29
T/WJ542
T/WJ702
T/WJ625
T/WJ624
T/WJ515
T/WJ512
T/WJ544
T/WJ546
J535T/W
0.01uFC528*
T/WJ537
T/WJ543
T/WJ520
T/WJ510
T/WJ567
J286T/W
J564T/W
J520T/W
J563T/W
T/WC283
J285T/W
T/WJ282
T/WJ292
T/WJ287
T/WJ288
T/WJ549
J637T/W
T/WJ289
T/WJ290
J553T/WT/W
R536
T/WJ283
T/WJ284
J291T/W
J286T/W
100J534
T/WR567
T/WJ281
T/WR711
J534T/W
J638T/W
J646T/W
100uF10V
C857*
3.3V REG.IC603
1
2
3
J551T/W
J804T/W
J709T/W
510R247
A1266Q241
T/WJ280
T/WJ687
T/WJ672
T/WJ550
T/WR780
T/WJ565* T/W
J818
0.1uFC283
10uHL501
100J511
T/WJ540
J556T/W
J526T/W
47KR318
5V_1
J819T/W
J634T/W
J523T/W
J664*T/W
33/2W(RS)
R610*
100uF10V
C699*
J665T/W
5.1VZD601*
0.33uFC630
100pFC639
T/WJ646
10UHL665
T/WJ650
J647T/W
3.3
V
47uF10V
C691*47uF10V
C692*
10UHL664
125-022RFB601
T/WJ110
J3T/W
2.7K/2W(RS)
R405
33pF/10pF
C520
33pFC503
33pFC546
75KR222
75KR221
T/WR223
J826T/W
J626T/W
J635T/W
J601T/W
J102*T/W
0.01uFC105
390R105
0.01uFC104
22R104
1.2KR103
100R101
0.82L102
0.01uFC115
C3197Q101
3.6KR102
47uF16V
C111
9V
J405T/W
TVR06JD304
470uF10V
C525
C102MQ502
C102MQ111
CP120.01uF16V CP13
0.01uF16V
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LP0310uH
CP070.01uF50V
RP101K1/10W5%
CP2047uF10V
RP091K
1/10W5%
ICP03S1117-18PIC
1
GND
2OUTPUT 3 INPUT
P5
51
B3
52
38
-10
10
1 2 3 4 5 6 7 8 9
10
CP3047uF10V
LP0410uH
CP0447pF50V
CP340.1uF50V
RP
14
10
1/1
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5%
RP
13
10
1/1
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CP190.01uF50V
CP2547uF10V
RP2810
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QP022SC3875S
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ICP04KA75270Z
2G
3 O1I
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CP330.1uF50V
CP0847uF10V
CP310.01uF50V
CP1847pF50V
LP0610uH
CP350.1uF50V
RP
11
10
0
1/1
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5%
CP10330uF10V
CP0547pF50V
35
23
8-1
01
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55
2B 1 2 3 4 5 6 7 8 9
10
CP290.01uF50V
CP270.01uF50V
RP301K
1/10W5%
CP0122pF50V
RP03100
5%1/6W
CP230.01uF50V
RP3122K
1/10W5%
CP2847uF10V
ICP02
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GND
2OUTPUT 3 INPUT
RP01220
1/6W5%
CP110.01uF16V
RP1710
1/10W5%
RP
12
10
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CP0647pF50V
XP0120.25MHz
RP1510K
1/10W5%
ICP01
PVP9390A-QG-A1
1X
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T2
XIN
3V
SS
18
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DD
18
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5G
PO
06
SE
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29
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10
VS
S3
3D
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11
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12FSW13IN314IN215IN116VDD18ADC17VSS18ADC18CVBS119TEST20CVBS221TM22CVBS32
3C
VB
S4
24
VS
S3
3A
DC
25
VD
D3
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DC
26
YIN
27
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28
VIN
29
RE
SE
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18
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31
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23
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33
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34I2C1
35I2C2
36SDA
37SCL
38INTR
39VDD33PAD
40VSS33PAD
41VSP
42HSP
43GPO1
44CLKOUT
CP3247uF10V
CP1647pF50V
RP08100
1/10W5%
CP0222pF50V
LP0210uH
CP1747pF50V
CP2147uF10V
RP02220
1/6W5%
RP051K
1/10W5% CP03
47pF50V
RP04100
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LP0110uH
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CP360.1uF50V
RP341K1/10W5%
RP331K
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RP0722K1/10W5%
0.1MYL
C515*
100pC245*
0.1uFC529
R904
R913 C2330-YQ904
R706T/W
R711T/W
R317*
J864T/W
J841T/W
J825T/W
J822T/W
J820T/W
J812T/W
T803
61709MC016D
J813T/W
J801T/W
J802T/W
J803T/W
J808T/W
J806T/W
J807T/W
J809T/W
T/WJ712
J708T/W
T/WJ690
T/WJ698
T/WJ667
J656T/W
J602T/W
J621T/W
J6
22
T/WJ623
ST
J605
T/WJ108
T/WJ606
J604
T/W
T/WJ609
100J516
T/WJ518
J409T/W
J220
T/W
J221
T/W
J223T/W
J151
J6
LA
72
73
0IC
75
1
LIN
-11
LIN
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LIN
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RIN
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RIN
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18
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19
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23
LIN
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24
A1275YQ103
30KR114 C102M
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T/WJ203
J502
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KIA78R05APIIC806
12
34
J829T/W
J828T/W
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C838TVR06JD806
125-022RFB808
470P/500VC836
CK
180/2W(RS)
R314
T/WJ539
100pFC532
1KR606
T/WJ293
9V
TH402*300ohm
TH401*300ohm
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11
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<SCHEMATIC DIAGRAM OF CW-81A>
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510(14") ANODE(HV)
GA
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510(14")
KE
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VERSION 1.11 2008.02.26
PO
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HEADPHONE R V(MONO)
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VOL-/VOL-
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<D
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LA42101 (10W MONO MAX)
LA42102N(15W+15W MAX)
<PAL>
ABNNORMAL
<NICAM/A2 OPT.>
<DOWNLOAD OPT.>
BTSC <AV STEREO OPT.>
<NTSC>
W/TEXT W/O TEXT
NTSCPAL
NICAM/A2
<SIDE A/V OPT>.
<MONO><STEREO>
<MONO OPT.> <MONO OPT.>
<MONO 4P,W/SCART OPT.>
<W/O SCART,PIP>
<W/SCART,PIP>
<GAME, FM TX OPT.>
<STEREO,W/O SCART OPT.>
<W/O PIP>
FB
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Cb
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Y-I
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TV
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AV
1
AV
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<PIP OPT.>
<W/PIP OPT.>
<W/PIP OPT.>
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BPF
Slave Address=0x38
<W/O BPF OPT.>
<W/FM TX OPT.>
MN
T_
R
MN
T_
L
GN
D
GN
D
D
NC
S/GND
VIN
SS/ADJ
FB
BD
MONO :IC810(W6553A), R806(RN ???)STEREO:IC810(W6554A), R806(RN 39K)
MODE INPUT
VIN1 REAR
VIN2 FRONT/SIDEVIN3 GAMEVIN-TV RF
MONO LV76210LV76220
LV76230
PAL/NT
SOUNDIC SYSTEM
PAL/NT/SECAM
COMBEWTXT Surround A2+NICAMBTSC
LV76211
LV76221
LV76231
LV76233
LV76212
LV76222
LV76213
LV76232
LV76223
LC75024
LA72702N
AV-ST
RF-STIC
*ASSEMBLE SUSOC(AV/ST)IC WITH RF/ST IC FOR RF-ST MODEL
PAL/NT/SECAM
PAL/NT/SECAM
PAL/NT
PAL/NT/SECAM
PAL/NT/SECAM
PAL/NT
PAL/NT/SECAM
PAL/NT
PAL/NT/SECAM
PAL/NT/SECAM
A2/NICAM
BTSC
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
LA42102L(10W+10W MAX)
<STEREO OPT.>
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<SS/ULTRA OPT.>
<FLAT,Normal OPT.><SS OPT.><ULTRA OPT.>
B+
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GN
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9V
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<MONO/AV ST OPT.>
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B+
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GND
S-GND
GND
COLD
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<RF ST>
<MONO/AV ST OPT.>
<MONO/AV ST>
<PRE AMP OPT.>
<MUTE OPT.>
Slave Address=0x80
VCD Slave Address=0xBA
EEPROM Slave Address=0xA0
TUNER Slave Address=0xC0
Slave Address=0x92
AV
1
GN
D
AV
2
GN
D
GN
D
RF
SC
L
SD
L
VS
HS
FB
0
RI
5V
RO
BO
GO
BI
GN
D
FB
I
GI
CPT BOARD
PIP BOARD
NARROW RANGE OPT.
<W/O ST-BY 1W OPT>
<W/ST-BY 1W OPT>
W/ST-BY 1W
=>Initial model: 21"ULTRA S/S(21FU1R).
Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes
LGE Internal Use Only
MAIN MAIN
CONTROL(TOP)
CONTROL(BOTTOM)
PRE-AMP(TOP)CPT(TOP)
CPT(BOTTOM)
PRE-AMP(BOTTOM)
April, 2008Printed in KoreaP/NO : MFL42466401