LG DC026ATS free download

File name DC026ATS.pdf

Trouble Shooting NO Raster & Picture Check the heater element is lighting. Check the heater voltage. Check/Replace Increase the screen voltage FR459,FR901. by using FBT volume. Check/Replace CPT. Retrace line is Screen is black. visible. Check the waveform Check FBT & CPT socket at pin 9(R out) of P501A. & CPT. Check the waveform Check the waveform at pin 36,38,40 of IC501. at pin19 of TU101. Check/Replace Check/Replace Check/Replace Check/Replace IC501. RGB drive circuit Q102,Q201,IC201. TU101. & CPT PCB ASSY. VM doesn't working Check each voltage at pin 6,8 of P402B. Check/Replace Check the waveform R420,J823,R429,R428. at pin9 of P03B. Check the waveform Check / Replace at pin34 of IC501. R923,R926 & CPT Assy. Check / Replace Check / Replace IC501 VM drive circuit. - 13 - Skip & No Channel memorized in Digital Check the voltage at pin 13 of P503. 33V Check / Replace Check the voltage at D816,R829,ZD803. pin 2 of TU101. High Low Check the voltage at Check the voltage at pin 3,1,9 of P904B. pin 16 of IC01. Normal NG Check / Replace Check / Replace Power line of TU901,IC909,IC910. Digital board & IC111. 2.5V~ 0.5V~2.5V Check / Replace Check / Replace Q105,Q104,IC01. TU101. Skip & No Channel memorized in Analog Check the voltage at pin 9 of TU101. NG Normal Check / Replace Check the voltage at ZD802,FR829. pin 13,6,7 of TUNER. Normal