5MR are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for 5MR. 5MR Datasheet: Fairchild Power Switch(FPS), 5MR PDF Download Fairchild Semiconductor, 5MR Datasheet PDF, Pinouts, Data Sheet. 5MR Datasheet, 5MR PDF, 5MR Data sheet, 5MR manual, 5MR pdf, 5MR, datenblatt, Electronics 5MR, alldatasheet, free.

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I just got notice the unit shipped and will be here next week. Start a conversation, ask a question or share your ideas.

SPS Idrain 1 2 Figure Anyways, I really hope this helps others. I tried a desoldering pen too, but to no avail. I am pretty good with soldering and have already checked out some possible part replacements on eBay.

Basically, the SMPS is a power source whichwasted in the regulat ed supply. I would like to share a couple of items that may help others LOL JK So the inductor in the upper left of your picture is the common mode inductor that is in series with the 28V supply.


Datashewt guessing the short is somewhere in that area.

5M02659R, 5M0265R, 5M0280

SMPS with minimal external components. We will get good at this some day, maybe Sonos will hire us?? I’m really hoping this is the bad component since my bulb is full dim after the caps charges and this PWM is removed.

The auction description says it does not power on and I am hoping to use this thread to troubleshoot and fix it. A 60 watt bulb seemed to do the trick for finding the failed component. Some of the choices that Sonos has made are exotic, like the integrated PWM they use for the bias converter.

Thetypically 12 dB. I had to get creative and solder wire patches to get it through the hole so I could solder the leads back This helped me trace the hot part. Previous 1 1 of I will share a troubleshooting slide on the 28V supply when I get it working reliably.

If you remove datawheet PWM, clean it and use the arctic silver 5 thermal paste. Finding this short is not easy! Now I just need to find a replacement. The resistor that blows comes off the primary Community Datashedt setups Repair ZP That is with the dim bulb installed so it is probably a little bit higher. The best way to get it off was keep cracking at it with desoldering braid. Total cost for replacement parts: I’m reading 44V at 1 and 3 with a dim bulb as well.


Thanks for all the help!

5MR datasheet, Pinout ,application circuits Fairchild Power Switch(FPS)

Not sure how to test a PWM So I am wondering if that is what may be blowing that? The Sonos lives and is revived.

That sent me on a Youtube and reading spree that gave me the tools and confidence to diagnose and fix the problems.