Sony SA-WCT290 Sub-Woofer Repair

In this video we look at a inexpensive repair for the Sony SA-WCT90 Sub-Woofer. This Sub was not powering on. This seems to be a common failure of this model. After troubleshooting and then searching online I was amazed to find much talk about the 54334 Converter chip being a common issue. More surprising than that is that I could not find a video or any good troubleshooting for the chip. I showed the best I could while still trying to make the video short as possible. This Chip was really tough due to the small 8 Pin SO package with the bottom thermal pad. I had to get it so hot to remove it, the tape to shield the other SMD passive components is very much needed. Going back, the Low Temp Solder Paste helped a lot because I did not have to get the bottom of the chip so hot to get it down flush. Hope you find this video helpful. Thanks for watching!
eBay Link to TI 54334 DC-DC Converter Chip (Link now obsolete)
http://ebay.us/DkCBS9
This is a link to Newark and they show out of stock and possible available in March 2024?
https://www.newark.com/texas-instrume...

These are very hard to find right now. I have a link for Amazon I will share for reference, but the price is too high it's for reference only.
https://amzn.to/3y1rB9Y

The MP2307 could be a possible replacement if check it out well. I have not used it, but it's similar.
https://www.ebay.com/itm/392318769050...

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