NDG Posted December 23, 2017 Share Posted December 23, 2017 HI - I am the neighborhood electronic geek and a friend asked me to take a look at his dead SW-450. I found an area of the silicone on the power supply board that was brown, and when I peeled it off there was some burnt debris where C29 on the power supply apparently used to be, close to the +48V (I think) output connector. The power supply is an OEM board made by "Computer Device Co., LTD" in China, model HYS3A-210. Their Web site (hanny.com.cn) does not list this board among their products (there are some similar model numbers) and does not have any way to contact them to get a schematic or at least the value of C29. Can anyone here help with the value of this capacitor? Or is there any way to get a replacement PS board...or is there a Klipsch repair shop in New England? Thanks, NDG Quote Link to comment Share on other sites More sharing options...
Adam Posted January 12, 2018 Share Posted January 12, 2018 C29 on the SW-450 amplifier board you have there is a 104 (0.1uF 50V) ceramic capacitor. Quote Link to comment Share on other sites More sharing options...
NDG Posted January 15, 2018 Author Share Posted January 15, 2018 Excellent! I guess I can replace it and see if that fixes it. I may use a 100V cap since that appears to be a 48V supply rail and 50V is cutting it close. thanks for the info! NDG Quote Link to comment Share on other sites More sharing options...
Adam Posted January 15, 2018 Share Posted January 15, 2018 You're welcome, I hope that fixes it for you. Yes, I would go up to a 100v ceramic disk. If you look at C65 on that power supply board, that's the same 104 (underlined) cap that exploded in position C29. Quote Link to comment Share on other sites More sharing options...
Ajesh Posted March 25, 2022 Share Posted March 25, 2022 Hi, Can we buy the whole power board PCP080828M1 as mine got blown by lightening and I have a complete Klipsch set, don't want to buy another SW450 sub. Regards Ajesh Quote Link to comment Share on other sites More sharing options...
Ricardo Castillo Posted October 12, 2023 Share Posted October 12, 2023 Hi, I have the same problem. I need someone to repair it. Quote Link to comment Share on other sites More sharing options...
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