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Now downloading free:LG CF-21D31KE  [report bad file]  

Download LG CF-21D31KE docs - TV - Conventional CRT, LCD Projectors, TFT, Plasma, Big Screen, HDTV, Home theater - Service manuals, repair tips

File information:
File name:CF-21D31KE.rar
[preview CF-21D31KE] new window
Size:1037 kB
MD5 Checksum:30e40df90a36b022a6fed4d4499ff791




Original Chassis:MC-019A
Descr:Schematic Diagram
Group:Electronics > Consumer electronics > TV >
Uploaded:2008-06-15 12:49:54
Multipart:No multipart

Information about the files in archive:
Decompress result:OK
Extracted files:3
File nameText
019ABLK.pdfOption Part < IIC Bus Line 2 MNT Audio Out(Mono) TV Audio Out (CL Mono) SPK. 7 15 18 / Game Audio (From HIC01) 9 AUDIO B+ SPK. Front-AV(2) < R.G.B AMP. & CPT DRIVE (TDA6107Q) (14/17V) IC842 5V REG < IC651 4 LA7016(Mono Opt) TV Audio(From UOC #28) ST-BY TRANS (3W Opt) AC INPUT (110~240V) H/P TO IC631 #1,#5 < AV-IN SMPS TRANS PJ202 25 30 MNT/TV-A(R/L)-OUT 44 < IC631 A1/A2(R/L)-IN 1 AV STEREO < 32 30 TDA9859 28 41 42 40 IC661 < RF STEREO 39 DVD(R/L)-IN / Game Audio 24 MSP3410D 47 31 MONO ( ~B01L ) STEREO ( ~B01K ~ A13P) 10 SPK(L)-OUT < IC844 8V REG H-Vcc IC131 5V REG 9.5V SPK(R/L)-OUT AM-IN (L/L Only) FM-SIF-IN < < < MONO SOUND AMP TDA2006 STEREO, STEREO, Sound Max SOUND AMP. SOUND AMP. TDA7266/97 TDA7266/97 Sound Trap Part 38 IFout Int. CVBS SIF 32 < 12 14V B+ (110/115V) AUDIO SIF 44 Audio Out SCL SDA 14 39 39 28 14 39 33 51~53 50 42 35 EXT RGB IK EXT Audio-in OUT Video-in SFE 5.74M Thai Opt. VIDEO V_DY Va Vb BLOCK DIAGRAM SW1 Va 22 Vb 21 H-out 8V
019ATS.pdfTROUBLE SHOOTING NO RASTER CHECK +B at D807 cathode Normal Abnormal Is the voltage at pin61,56 & 54 of IC01 3.3V? No Is the voltage at pin3 of IC02 5V? Yes Check / Replace IC01,IC02 No Check the In/Out of IC842 No Check the voltage at D805 or D815 cathode No Check / Replace F812 Yes Is the voltage at pin14 & 39 of IC01 8V? Yes No Check &replace IC01 No Check &replace Q402 Check pin33 of IC01(H-out) Yes Check Q402 collector waveform Yes Check T402 & each pin voltage No Check &replace T402 Yes Check &replace T402 Check FUSE of AC line OK Check the voltage of C806 254~380V Check the voltage pin3 of IC803 Open Check /replace Fuse,DB801 No Check the in/out of IC844 No Check IC01 pin1 high? 0V Check /replace DB801 Check /replace IC801,IC803,IC804 NO RASTER / SOUND OK Check the Heater voltage of CPT (6 ~ 6.5Vrms) OK Not OK Check HV, Screen voltage of CPT Not OK OK Check Ik Current of IC01,pin50 Not OK OK Check the Heater pulse of FBT T401 Not OK Check/Replace CPT Board Components
mc019a.pdfP/NO:3854VA0083A-S 2001.04.20

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