Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: AMuzi Newsgroups: rec.bicycles.tech Subject: Re: Suspension losses Date: Mon, 13 Jan 2025 10:36:32 -0600 Organization: Yellow Jersey, Ltd. Lines: 71 Message-ID: References: <7ee2ojpq2b75m6gsd5svace02b19qassrk@4ax.com> <4419oj9p6p9ft33ad1c8p9gv1vt73ogtnp@4ax.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 13 Jan 2025 17:36:32 +0100 (CET) Injection-Info: dont-email.me; posting-host="ce70e83366a473d712f409064307176c"; logging-data="1964605"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18Wy7JRr4xNiXCHRYrrD3el" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:BHCuZgjLZSaQRTdj2GnIuLi/2Vo= Content-Language: en-US In-Reply-To: Bytes: 3930 On 1/13/2025 10:06 AM, Frank Krygowski wrote: > On 1/12/2025 10:33 PM, Jeff Liebermann wrote: >> On Sun, 12 Jan 2025 21:11:37 -0500, Frank Krygowski >> wrote: >> >>> On 1/12/2025 5:13 PM, Jeff Liebermann wrote: >>>> On Fri, 10 Jan 2025 20:01:26 -0500, Frank Krygowski >>>> wrote: >>>> >>>>> Two days ago, my kid asked me to figure out why an >>>>> electric blanket >>>>> wasn't working. The controller refused to turn on. I >>>>> opened it and >>>>> confirmed that it was getting supply voltage. Beyond >>>>> that, the pile of >>>>> dozens of surface mount electronic components was >>>>> incomprehensible to >>>>> me. I suspect Jeff might have been able to diagnose it, >>>>> but not me. >>>>> Here's a photo: >>>>> https://www.flickr.com/photos/16972296@N08/54259119364/ >>>>> in/dateposted-public/ >>>> >>>> I don't think I can do much with just a photograph.  If >>>> you have the >>>> maker, model and FCC ID number, I can do better.  Also, >>>> some >>>> indication of what it does when the power is applied, >>>> such as do the >>>> LED's light.  If the don't light, try again in the dark >>>> and see if >>>> they partially light. >>> >>> There was no action at all, no lights, nothing. >> >> That makes troubleshooting easy.  There has to be a fuse >> or thermal >> circuit breaker in there somewhere.  I can't see one on >> the PCB >> (printed circuit board).  It's a single sided PCB so it's >> unlikely >> that it's hiding on the back of the PCB.  It's either >> inside the wall >> plug, inside some kind of on/off switch box that's in >> series with the >> power cord, or attached to the blanket somewhere. > > I did measure 120V on the board where the input wires were > soldered in place. > > Sorry about the quality of the photo. I took the photo only > to show the owner why I wasn't digging deeper into diagnosis. > >> If you want me to continue, please provide the maker, >> model number, >> and FCC ID if available. > > I think you shouldn't bother, but I'll be visiting again > this week. If the old unit is still around, maybe I'll bring > it home for more detective work. > One ever popular technique to resolve intractable electronics: https://www.yellowjersey.org/photosfromthepast/FIXCOMPU.JPG -- Andrew Muzi am@yellowjersey.org Open every day since 1 April, 1971