- Headphone socket on laptop? - 1 Update
- Anyone used one of these? - 3 Updates
- Audio Power Amplifier Solid State Relay - 3 Updates
| "Kenny" <me@privacy.net>: Jan 27 03:16PM Tried twice with the glue idea, once using original plug and again using cotton bud with cotton removed, neither worked. Opened laptop, socket is closed type so I used a rotary multi-tool with mill attachment to remove part of back and top then was able to push it out towards the front. Kenny "Kenny" wrote in message news:kKKdneT6BIsJgj7LnZ2dnUU78TednZ2d@brightview.com... The m/b would have to be completely removed to even see what type of socket it is. Using a pin I was able to slightly move the tip inside the socket and I have sound again from laptop speakers, can't get a grip on it with tweezers to pull it out though. At least I now have sound but can't use headphones or mic. Don't think the idea of pushing another plug in would be advisable since I can't see the upper side of socket and even if it did work the broken bit would be trapped between m/b and casing. Kenny Kenny wrote in message news:7dcd0da0-02f9-4967-a0b7-c830d2e9199b@googlegroups.com... On Friday, January 22, 2016 at 3:15:26 PM UTC-5, Look165 wrote: > > whole plug would then become lodged in the socket! > > Any ideas anyone? > > Kenny Cargill I dunno, I have seen quite a few with closed backs. But that is a good idea if it is not. And with your method, if it works, it is VERY important to find the end and not have it rolling around in there. Hopefuly the construction of the thing will allow that. If it is closed back, if that can be accessed it might be possible to melt a hole in it and then use a paperclip to push the piece out. In fact I think the paperclip would be used to make the hole as well. I remember people breaking off an RCA plug in their TV and with the open back jacks would just push another plug in it, and it would work. However, once the thing gets moved it can travel and short something out if it didn't right away. Saw a $300 signal board turned into scrap over that. |
| Cursitor Doom <curd@notformail.com>: Jan 27 12:43AM On Tue, 26 Jan 2016 10:08:48 -0500, Ralph Mowery wrote: > This ebay number is one of many of them. > 291585134524 Thanks Ralph. |
| Cursitor Doom <curd@notformail.com>: Jan 27 12:43AM On Tue, 26 Jan 2016 10:28:21 -0500, legg wrote: > Can be of some use on production test bench, but doesn't replace visual > inspection and simple open/short or bias testing. > RL Nice - but a bit pricey! |
| "Mark Zacharias" <mark_zacharias@sbcglobal.net>: Jan 27 06:24AM -0600 "Cursitor Doom" <curd@notformail.com> wrote in message news:n893ri$8su$4@dont-email.me... >> inspection and simple open/short or bias testing. >> RL > Nice - but a bit pricey! I keep a home made "octopus curve tracer" (two-lead type) on a dedicated scope for the past 30+ years. Absolutely WOULD NOT be without it. Instantaneously find one bad amp channel out of many, very quick checks of capacitance, inductance, resistance, diodes, fets, transistors, etc. Once you get used to it and sort of "get it" as to what the device is telling you, it will make you a better, faster technician. Mark Z. |
| amdx <nojunk@knology.net>: Jan 26 11:19AM -0600 On 1/25/2016 6:30 PM, Dave Platt wrote: > I'd strongly suggest using a real relay. If necessary, build a small > interposer board to convert the original relay's pinouts to those of a > high-quality commodity relay. This was my thought. Standard relay with a DIY PCB to make the pins match. Mikek |
| legg <legg@nospam.magma.ca>: Jan 26 02:57PM -0500 On Mon, 25 Jan 2016 22:13:35 -0000, "Gareth Magennis" >this is really annoying, but a good opportunity to learn something useful. >I have an old Urei Power Amp that needs its DPDT 10A speaker output relay >replacing. Surprised you need DPDT. DPST should seve this purpose, if the amp has internal Zobel termination. >So I thought about maybe using Solid State relays, which should be >physically smaller and lighter, and could be mounted in little patches of >available free space. SSRs will have an objectionable voltage drop, introducing distortion whether or not the drives are compatible. Make and model of original? RL |
| Phil Allison <pallison49@gmail.com>: Jan 26 05:53PM -0800 legg wrote: > Surprised you need DPDT. DPST should seve this purpose, if the amp has > internal Zobel termination. ** Some amps use all the contacts on a change-over relay. The speaker output connects to the moving contact and is grounded when unpowered. On power up, the speakers connect to the amp output. This arrangement is far better at protecting speakers from DC faults as few relays can break the arc that forms when opening under load at high DC voltage. Most relays are rated at 24VDC max and that is where thee begin to arc badly. .... Phil |
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