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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Headphone connector repair
Seems like it should be the easiest thing in the world, but I'm ashamed
to admit I'm having trouble with this. The replacement headphone plug has three gold-plated terminals, and the headphone lead has three enamel-coated wires coming out: if the plug is oriented in the 12 o'clock position I have red to right, green to left, gold to the center pin. I sand down the wires, tin them, and then do my best to solder them up, but the holes in the terminals are very small and I don't see as well these days. Unfortunately even when I think I've got all three wires making a solid electrical connection to the terminals, I'm often getting only one channel, or intermittent contact, or wires shorting against each other somehow. Any suggestions to improve my game here? |
#2
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Headphone connector repair
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#3
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Headphone connector repair
On 11/19/2016 8:25 AM, bitrex wrote:
Seems like it should be the easiest thing in the world, but I'm ashamed to admit I'm having trouble with this. The replacement headphone plug has three gold-plated terminals, and the headphone lead has three enamel-coated wires coming out: if the plug is oriented in the 12 o'clock position I have red to right, green to left, gold to the center pin. I sand down the wires, tin them, and then do my best to solder them up, but the holes in the terminals are very small and I don't see as well these days. Unfortunately even when I think I've got all three wires making a solid electrical connection to the terminals, I'm often getting only one channel, or intermittent contact, or wires shorting against each other somehow. Any suggestions to improve my game here? Optivisor! I just cobbled together a headphone cord to a RCA phono plug cord this morning. Trying to sell some Pioneer HDM700 speakers at our yard sale and had to connect an audio source to an amp. Mikek |
#4
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Headphone connector repair
On Sat, 19 Nov 2016 09:25:31 -0500, bitrex
wrote: I sand down the wires, tin them, and then do my best to solder them up, but the holes in the terminals are very small and I don't see as well these days. Soldering to tiny foil (tinsel) wires is difficult. What I do is wrap the wire with one strand of fine bare copper wire salvaged from a piece of stranded wire. I wrap the fine bare wire around the foil wire, and then solder to the bare wire, not the foil wire. The wrap does not need to be tight, with all the turns jammed together, but rather a loose spiral with the pitch equal to about twice the foil wire. I can supply a photo if my description is too muddled. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#5
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Headphone connector repair
On 11/19/2016 10:51 PM, Jeff Liebermann wrote:
On Sat, 19 Nov 2016 09:25:31 -0500, bitrex wrote: I sand down the wires, tin them, and then do my best to solder them up, but the holes in the terminals are very small and I don't see as well these days. Soldering to tiny foil (tinsel) wires is difficult. What I do is wrap the wire with one strand of fine bare copper wire salvaged from a piece of stranded wire. I wrap the fine bare wire around the foil wire, and then solder to the bare wire, not the foil wire. The wrap does not need to be tight, with all the turns jammed together, but rather a loose spiral with the pitch equal to about twice the foil wire. I can supply a photo if my description is too muddled. Nice idea, I'll try that. |
#6
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Headphone connector repair
In article ,
bitrex wrote: Seems like it should be the easiest thing in the world, but I'm ashamed to admit I'm having trouble with this. The replacement headphone plug has three gold-plated terminals, and the headphone lead has three enamel-coated wires coming out: if the plug is oriented in the 12 o'clock position I have red to right, green to left, gold to the center pin. I sand down the wires, tin them, and then do my best to solder them up, but the holes in the terminals are very small and I don't see as well these days. IME, the fiber "strength members" twisted in with the wires are a big part of the problem. Using my trusty magnifying visor, I carefully separate out all the non-electric strands and hold them out of the way with tape. Separate out enough so the strands will be at least an inch longer than the length you'll need for attaching the wires; more on that later. The wire strands are far too small to sand without damage, and it's not necessary once the plastic strands are out of the way. Just use a well-tinned hot iron (750 F at least; 800 is better) and a dab of flux and the insulation will burn right off and the wire will tin. After the wires are soldered to the plug (and check the connections by listening; red is not always "right") free up those fiber strands you so carefully taped out of the way before. With a bit of slack in the wires (for strain relief), give the fibers a couple wraps around the back part of the plug and apply a drop of superglue (if it doesn't go off, sprinkle a pinch of baking soda on it). Now look around, spot the plug's back cover lying on the bench, curse loudly, and start over, but this time slide the back cover on the cable *first*! Doing it that way makes very reliable connections, and the fiber strands take any tension off the fragile wires when the cable gets pulled. Isaac |
#7
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Headphone connector repair
On 11/20/2016 11:48 PM, isw wrote:
Now look around, spot the plug's back cover lying on the bench, curse loudly, and start over, but this time slide the back cover on the cable *first*! Yes. I am guilty of this. :-( |
#8
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Headphone connector repair
On Sun, 20 Nov 2016 23:50:53 -0500, bitrex
wrote: On 11/20/2016 11:48 PM, isw wrote: Now look around, spot the plug's back cover lying on the bench, curse loudly, and start over, but this time slide the back cover on the cable *first*! Yes. I am guilty of this. :-( Ditto, but my solution was not to start over. I cut a wide slit along the length of the plastic connector cover with a hack saw or Dremel tool cutoff disk. The slit was wide enough that I could slide the wires through the slit. I then screwed the plastic cover onto the plug, and filled the slit with hot melt glue. A little sanding it looked almost as good as if I had done it correctly in the first place. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#9
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Headphone connector repair
On 21.11.16 5:50, bitrex wrote:
On 11/20/2016 11:48 PM, isw wrote: Now look around, spot the plug's back cover lying on the bench, curse loudly, and start over, but this time slide the back cover on the cable *first*! Yes. I am guilty of this. :-( It happens most often with 100pins amphenol connectors.(dont ask me how I know....) |
#10
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Headphone connector repair
In article ,
bitrex wrote: On 11/20/2016 11:48 PM, isw wrote: Now look around, spot the plug's back cover lying on the bench, curse loudly, and start over, but this time slide the back cover on the cable *first*! Yes. I am guilty of this. :-( Now you may progress to Stage 2 Error: Remembering to put the shroud on, then discovering you put it on backwards ... -- --------------------------------------+------------------------------------ Mike Brown: mjb[-at-]signal11.org.uk | http://www.signal11.org.uk |
#12
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Headphone connector repair
On 11/21/2016 06:16 AM, Mike wrote:
In article , bitrex wrote: On 11/20/2016 11:48 PM, isw wrote: Now look around, spot the plug's back cover lying on the bench, curse loudly, and start over, but this time slide the back cover on the cable *first*! Yes. I am guilty of this. :-( Now you may progress to Stage 2 Error: Remembering to put the shroud on, then discovering you put it on backwards ... I committed a Stage 3 error today repairing one mo I put two shrouds on. And only noticed until I had soldered up the plug. They're solid metal. I give up. |
#13
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Headphone connector repair
In article ,
says... On 22:03 24 Nov 2016, MJC wrote: In article , says... I'm impressed. In some other groups I've been asking about a one-piece stereo to mono headphone adapter. I want one with a built-in switch but even though it's not available I don't think I'll be doing that to fit one! http://al.howardknight.net/msgid.cgi?ID=148001642200 If, as in link, it has a mono socket, what is the "mono/stereo" switch going to do? Mike. It would allow stereo headphones to play mono in both channels (rather than in just the left channel) from a mono socket. You're going to need a stereo socket for that! (I had hoped you would work that out for yourself with my prompting!) Mike. |
#14
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Headphone connector repair
In article ,
says... On 09:02 25 Nov 2016, MJC wrote: In article , says... On 22:03 24 Nov 2016, MJC wrote: In article , says... I'm impressed. In some other groups I've been asking about a one-piece stereo to mono headphone adapter. I want one with a built-in switch but even though it's not available I don't think I'll be doing that to fit one! http://al.howardknight.net/msgid.cgi?ID=148001642200 If, as in link, it has a mono socket, what is the "mono/stereo" switch going to do? Mike. It would allow stereo headphones to play mono in both channels (rather than in just the left channel) from a mono socket. You're going to need a stereo socket for that! (I had hoped you would work that out for yourself with my prompting!) Mike. One scenario I need to handle is when I want to play the output from the headphone socket of a mono dictation machine on both channels of stereo headphones. At other times, the need is to pass through a stereo signal from a stereo socket to stereo headphones and then to switch over to hearing dual mono in the headphones. It's all lovingly discussed in the thread in uk.d-i-y. :-) MID: Sorry, I don't feel loving enough to read that. If you don't understand the need for a stereo socket, I give up! Mike. |
#15
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Headphone connector repair
Getting off topic but I've changed a bunch of high pin count ICs (through the hole type) and got most of pins soldered when discovering that one pin decided to stay out of it's hole..
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#16
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Headphone connector repair
On 26/11/16 12:31, pamela wrote:
My dictation machine has on't a mono headphone socket so I don't have any choice about it. It would probably be easy to break into the unit and put in a small stereo/mono toggle switch. Better than doing that after amplification. -- Adrian C |
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