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Now downloading free:LG CF25H30N  [report bad file]  

Download LG CF25H30N docs - TV - Conventional CRT, LCD Projectors, TFT, Plasma, Big Screen, HDTV, Home theater - Service manuals, repair tips

File information:
File name:CF25H30N.part2.rar
[preview CF25H30N] new window
Size:2238 kB
MD5 Checksum:5ed33d96140f4f127126a604925840f6




Original Chassis:MC-74A
Descr:LG model CF25H30N TV Chassis MC-74A Service Manual
Group:Electronics > Consumer electronics > TV >
Uploaded:2008-11-29 11:09:12
Multipart: 0

Information about the files in archive:
Decompress result:OK
Extracted files:3
File nameText
Schematic - Main.pdfService Sheet of MC-74A (1/2) PART NO : 3854VA0018A-S1 DATE : Nov 24 ,'97 TP TP1 J173 CVBS/LUMINANCE CHROMA AUDIO ADJUSTMENT TEST POINT
Schematic - Sub.pdfService Sheet of MC-74A ( 2/2) PART NO : 3854VA0018A-S2 DATE : Nov 24 ,'97
Troubleshooting.pdfTROUBLESHOOTING NO PICTURE/ NO COLOR Is the CVBS signal at pin6 of IC512 normal? Yes Is the CVBS signal at pin16 of IC201 normal? Yes Are the CVBS signal at pin13, 17 of IC512 normal? Yes Is the Y signal at pin28 of IC512 normal? Yes Are the R-Y, B-Y signal at pin29, 30, 31, 32 of IC512 normal? Yes Are the R,G,B signal at pin19, 20, 21 of IC512 normal? Yes Are there R,G,B signal at pin8, 9, 10 of IC511? Yes Check the IK signal at pin18 of IC512. Yes Check CPT Board. No Check IC512. No Check/Replace IC201. No Check/Replace IC201, Q201. No Check/Replace IC512. No Check/Replace IC512, IC590, IC591. No Check/Replace IC512. No Check/Replace IC511. No Check the IK Line CPT Board. NO TELETEXT Check the voltage 12V of CT75. Abnormal Normal Check the 12V line to be correct. Abnormal Check the voltage of 5V line. Check/Replace ICT75. No 4.8~ 5.2V Check if video signal is input at pin8 of ICT74. No Check if video signal is input at pin16 of IC201. Yes Check the CVBS line. Yes C

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