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Now downloading free:LG CE-20J3BGX  [report bad file]  

Download LG CE-20J3BGX docs - TV - Conventional CRT, LCD Projectors, TFT, Plasma, Big Screen, HDTV, Home theater - Service manuals, repair tips

File information:
File name:CE-20J3BGX.part1.rar
Size:2041 kB
Extension:
MD5 Checksum:85d95674cbc8e711513e6ca110c0c4a2
Mfg:

LG

Model:

CE-20J3BGX

Original Chassis:
Descr:Service manual
Group:Electronics > Consumer electronics > TV >
Uploaded:2005-04-07 08:36:34
User:dupator
Multipart: 0  1

Information about the files in archive:
Decompress result:OK
Extracted files:7
File nameText
075A(RPL).pdfThe components identified by mark are critical for safety. Replace only with part number specified. REPLACEMENT PARTS LIST DESCRIPTION LOCA. NO D804 D805 PART NO 0DD150009CA 0DD200009AH 0DD100009AM 0DD300009AC 0DD060009AC 0DD414809ED 0DD060009AC 0DD060009AC 0DD060009AC 0DD060009AC 0DD060009AC 0DR010009AA 0DD400309AD 0DR210009AA 0DR210009AA 0DR210009AA 0DD260000BD 0DD000000BA 0DZ330009CC 0DZ560009CF 0DZ330009DF 0DZ120009AF 0DZ180009AG 0DZ820009AH 0DZ820009AH 0DZ510009AB 0DZ750009AG DESCRIPTION DIODE,RECTIFIER RGP15J DIODE,RECTIFIER RU2AMV(1) DIODE,RECTIFIER EU1ZV(1) DIODE,RECTIFIER RU3AMV(1) DIODE,TVR06J 0.6A/600V 250NS DIODE,1N4148 TA DIODE,TVR06J 0.6A/600V 250NS DIODE,TVR06J 0.6A/600V 250NS DIODE,TVR06J 0.6A/600V 250NS DIODE,TVR06J 0.6A/600V 250NS DIODE,TVR06J 0.6A/600V 250NS DIODE,RECTIFIER EG01C NON 1000V 0.5A DIODE,RECTIFIER IN4003A DIODE,RECTIFIER BAV21 DO-35 200V DIODE,RECTIFIER BAV21 DO-35 200V DIODE,RECTIFIER BAV21 DO-35 200V DIODE,BRIDGE D2SBA60 DIODE,RECTIFIER LAMP DIODE,ZEN
075Aadj.pdfADJUSTMENT ¡ Safety Precautions 1. It is safe to adjust after using insulating transformer between the power supply line and chassis input to prevent the risk of electric shock and protect the instrument. 2. Never disconnect leads while the TV receiver is on. 3. Don't short any portion of circuits while power is on. 4. The adjustment must be done by the correct appliances. But this is changeable in view of productivity. 5. Unless otherwise noted, set the line voltage to 230Vac¡ 10%, 50/60Hz. Model System Tuner P/N Marker AGC Voltage CEPAL/SECAM-B/G,D/K.I 6700VPF005B LGEC 2.5¡ 0.1V CLPAL/SECAM-B/G,LL' 6700VPF005A LGEC 2.5¡ 0.1V ¡ Screen Voltage Adjustment Test Point Adjust : RK (Red Cathode of CPT Board) : Screen Control of FBT ¡ Test Equipment required 1. Multimeter (volt meter) 2. Oscilloscope ¡ RF AGC (Automatic Gain Control) Adjustment Test Point Adjust : AGC TP (J05) : Remote Control 1) Tune the TV set to receive a digital pattern. 2) Press PSM (RED) button on remote controller
075ablk.pdfLOCAL Key ASSY Pre Amp AC-IN 230V ST-5V ST_BY(2W) POWER (OPTION) IC601 TDA7253 Audio AMP IC02 EEPROM 24C16 SCL SDA IC01 TV /TXT SDA5555 /5521 SCL SDA CVBS(TXT) IR B+ Sound B+ 8V TXT RGB 8VREG STRF6707 BLOCK DIAGRAM 5V IC901 CPT DRIVE AMP. TDA6107Q RGB IC501 TDA8842 VIDEO PROCESSOR VB VA H-OUT 5V REG 35V H.Vcc /TUNER CVBS IK BPF TPS VA VB IC301 TDA8351Q VERTICAL AMP V-DY IC502 CD4052 K3953M(BG/DK/I) K6263K(W/M) IF1 5V 33V IF2 SAW I 16V H-DY FM AM 45V TUNER SCL SDA K9260M(BG/DK/I) K9253M(W/M) SAW II L9654M(L/L ) L/L S/W SAW III IC201 CD4053 SW SOUND BOARD VIF/SIF U4488B SCART/PHONE A2-OUT Q401 D2499 FBT H-OUT B+ HV SCREEN H/T AGC *OPTION 180V
075Atro.pdfTROUBLESHOOTING NO RASTER CHECK +B at D807 cathode Normal Abnormal Is the voltage at pin37 & 12 of IC501 8V? Yes No Check &replace IC501 No Check T401 & each pin voltage Check pin40 of IC501(H-out) Yes Check Q402 collector waveform Check FUSE of AC line No Check the in/out of IC844 No 254~380V Check u-COM pin28 low? No Check /replace Q807 Check the voltage at pin4 of IC804 OK Check the voltage of C806 Open Check /replace Fuse,DB801,IC803 0V Check /replace DB801,R811 Check /replace D806,IC804,R809,R810 NO TELETEXT Check CVBS signal at IC01 pin12 OK Check IC01 & IICBus Line Not OK Check / Replace Q10 & IC501 - 16 - NO SOUND / PICTURE OK Check the voltage of SMPS 25V at pin9 of IC601 Abnormal Normal(20~25V) Check/Replace of FR803 & D804 Check the voltage swing of pin2 of IC501 Check demodulated signal of pin15 of IC501 Check/Replace IC501 Check demodulated of input pin of IC601 Check/Replace IC01 Check/Replace IC601 NO RASTER / SOUND OK Check the Heater voltage of CPT
075a_20pcb.pdfPRINTED CIRCUIT BOARD MAIN & CPT S/W CTL
075A_EV.pdfEXPLODED VIEW PARTS LIST LOCA. NO PART NO DESCRIPTIONS The components identified by mark critical for safety. Replace only with part number specified. is 112 112-C20S 2055-V1221J CPT SET,A48ECR141X(S/S, DARK W/ITC LGE CPT ,A48QAD220X 03S7ND *LGEAP SPEAKER,GENERAL C091P06K145B COIL,DEGAUSSING,CU 20" 60T 15OH DY,DCAM1-20PLAA LEAD SET,CPT EARTH CABINET ASSY(RED) CABINET ASSY(BLUE) CABINET ASSY(GREEN) BUTTON,CONTROL(RED) BUTTON,CONTROL(BLUE) BUTTON,CONTROL(GREEN) SPRING,KNOB BUTTON,POWER(RED) BUTTON,POWER(BLUE) BUTTON,POWER(GREEN) BACK COVER ASSY(RED,SCART) BACK COVER ASSY(BLUE,SCART) BACK COVER ASSY(BLUE,AV JACK) BACK COVER ASSY(GREEN,SCART) BACK COVER,MIDDLE(RED) BACK COVER,MIDDLE(BLUE) BACK COVER,MIDDLE(GREEN) PWB ASSY,MAIN MC009A BG/DK/I PWB ASSY,MAIN MC009A BG/DK/I+GAME PWB ASSY,MAIN MC009A BG/L+GAME PWB ASSY,MAIN MC009A BG(W/O GAME) PWB ASSY,S/W MC009A BD/DK/I PWB ASSY,S/W MC009A BD/L+GAME PWB ASSY,S/W MC009A BG(W/O GAME) PWB ASSY,CTL MC009A PWB ASSY,CTL MC009A SCREW ASSY,HEXAGO
mc009a_plt.pdfService Sheet of MC-009A P/N : 3854VA0069A-S(1/2) DATE : 2000.3.21 Video C Audio Waveform





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