LG M64ATS free download

File name M64ATS.PDF

Troubleshooting Guide DEAD SET (NO RASTER/NO SOUND) Check +B voltage at J131 112V(or 118V) 0V Check the heater elements Check the rectified voltage of CPT are lighting or not of main power at C817(+) No 0V Check/Replace FR423 Check/Replace F801, DB813, R821, T801 Yes 150~ 380V Check the voltage at Check the voltage C430(+) at pin9 of IC802 Lower than 6V 0.1V 8V Check/Replace Check/Replace IC430 Check the voltage D810, ZD810, Q810 R430, IC401, D411, FR422 at pin21 of IC501 6~ 8V 0.1V over 0.4V Check/Replace IC802, D806, D811. Check/Replace IC501 Check/Replace IC01 Check the secondary (IC202, IC01T, IC02T: voltage are short in case of with TXT) NO PICTURE/NO SOUND (RASTER OK) Check the voltage of TUNER MB(12V) 11.8~ 12.2V Check/Replace Check the tuning Check/Replace Tuner condition FR422, D411, IC401 Check the 33V at C416(+) 0V Check/Replace R421, ZD404 NO RASTER(SOUND OK) Check heater elements of CRT are lighting No Yes Check the AC voltage at The screen is Retrace line H/T pin of CPT SOCKET blinking is visible on CPT board 6.0~ 6.5Vrms Check replace Check the screen voltage (G2) IC501 alignment is correct or not Check/Replace CPT Abnormal Normal 0Vrms Readjust White Check the screen colour Balance Check/Replace