Read LG 32LN549C / 32LN549E (CHASSIS:LJ3AC) Service Manual online
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Analog TV Audio Trouble Shooting
Check video output
Follow procedure All source audio
trouble shooting
Y
Follow procedure analog TV
video trouble shooting
N
N
Maybe NTP3000A audio block
has problems. Replace it
Check L516 voltage level 16V
Replace it
N
Y
Check I2S signal
Replace it
N
Y
Digital TV Audio Trouble Shooting
Check video output
Follow procedure All source audio
trouble shooting
Y
Follow procedure digital TV
video trouble shooting
N
N
Maybe NTP3000A internal
audio DSP has problems.
Replace it
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