I've had my LG NB4530A soundbar for 7 years.
It's been great up until the past few days.
After playing sound for about 30 minutes it now shuts off abruptly.
There's no "GOODBYE" message on the LCD, and the standby light doesn't illuminate.
However, I can turn it right back on, but it will only stay on for minutes (or less) before dying again.
I'm looking at the service manual (attached) and there isn't a section addressing this kind of issue.
I do have a multimeter, and a rework station, but no oscilloscope.
I've already removed the mainboard for testing. I just don't know where to start looking.
Where would you begin testing?
Thanks for your ideas!
I strive to prevent e-waste as much as possible!
It's been great up until the past few days.
After playing sound for about 30 minutes it now shuts off abruptly.
There's no "GOODBYE" message on the LCD, and the standby light doesn't illuminate.
However, I can turn it right back on, but it will only stay on for minutes (or less) before dying again.
I'm looking at the service manual (attached) and there isn't a section addressing this kind of issue.
I do have a multimeter, and a rework station, but no oscilloscope.
I've already removed the mainboard for testing. I just don't know where to start looking.
Where would you begin testing?
Thanks for your ideas!
I strive to prevent e-waste as much as possible!
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