LG 017ATRO free download

File name 017ATRO.pdf

TROUBLE SHOOTING Check pin 31 of MICOM. 5V Check / Replace Check the voltage at Q871,Q851,Q852,IC856, pin 41 of MICOM. IC802,IC803. 3.3V 0V Check the H-OUT voltage at pin 8 of IC1113. Check / Replace Check / Replace IC11,FR359,FR360, D414,FR443,Q855,Q856. 8.0V 0V D339,D349. Check the voltage of C404(+). Check / Replace IC1113. 67V Check / Replace Check the voltage at R407,D867,FB854. pin 2 of FBT. 135V Check / Replace Check / Replace R865,L853,D850,F854. Q401, Q402, T401. Check the voltage of C821. Check the voltage at Check / Replace pin 4 of STR. SW1101,F1511,T1511, DB814,TH810. 15V Check / Replace Check / Replace R809,D802,D803. IC801 and the secondary part of POWER circuit. - 20 - Check if heater element is lighting. Check the heater voltage. Check/Replace Increase the screen FR442,R910. voltage of FBT. Check/Replace CPT. Retrace line is Screen is black. visible. Check the waveform Check FBT & CPT socket at pin 73 of IC1111. & CPT. Check the waveform Check the waveform at pin 31~34,37~44,47~50 at pin 19 of TU101.