Parts is in red boxes. This is from a Chinese android TV box and I am searching for a replacement part. I searched around and it might be an a shielded SMD power inductor but not sure what to replace it with. I don't see any exposed coils on the side and I see 2 copper ends soldered on the board and no pins underneath it.
\$\begingroup\$
\$\endgroup\$
3
-
3\$\begingroup\$ Those are almost certainly inductors. No idea what the value is though. The SOT23-6 IC's next to them are probably Switch-Mode regulators so if you can identify those then you might be able to look up some reference circuits to get an idea for what the inductors could be. \$\endgroup\$– brhansJul 12, 2016 at 15:18
-
\$\begingroup\$ I wonder how you could determine they are broken and need to be replaced without knowing what they are and how to measure if they are still functioning. \$\endgroup\$– PlasmaHHJul 12, 2016 at 15:25
-
\$\begingroup\$ @PlasmaHH. Good point. brhans may have best solution. \$\endgroup\$– user105652Jul 12, 2016 at 16:33
Add a comment
|
1 Answer
\$\begingroup\$
\$\endgroup\$
It's a power inductor. Probably in the range of ~1uH.
You could get a hot air gun to heat it up, remove it and then measure the inductance.
This is the hot air gun I use: https://www.amazon.com/WEP-858D-Soldering-Station-Suitable/dp/B0055B6NGE
...and LCR meters are a little more expensive than a regular multimeter, try Amazon: https://www.amazon.com/LCR-Meters/b?ie=UTF8&node=5011684011