Splicing monitor cables...
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From: shutle on 28 Mar 2006 23:30 HI, this is my first post here because I Guess this is a hardware problem indeed and the only sollution I can think of is splicing. I'll cut to the chase... I've been fidling with the end of my monitor vga cable for a while now because there was dammage and the only way to get the colors right was to move the cable around, sorta like ajusting an antena. Well now the cable doesnt show any color no matter how I twist and turn it. Its a good 19" monitor and just because of the lowsy vga plug it doesnt work. Not only that but the monitor was made so that the vga cable could not be swapped. :crybaby: Bassicaly I need to splice it! Any advice... I already bought a vga cable and checked it out, it has more small wires in it then by monitor cable and their all color coded...
From: lurkswithin on 29 Mar 2006 04:30 > shutlewrote: Because of damaged wires my monitor VGA plug doesnt work. > Basically I need to splice it! and add a new plug Any advice... > I already bought a VGA cable and checked it out, it has more small wires in it then my monitor cable and this will make splicing it quite difficult. > I dont realy know what wires to connect to what, even the colors are different... This isn't what you wish to hear..I know. But you asked for "any advice"! Don't mess around with doing this because there are a lot of variables involved that could ruin your monitor or cause feed back to harm your graphics card. Just search the web and buy an exact replacement cord for your monitor. (Then if you need to...buy the adapter to convert it to what ever it is that is needed. )
From: do_not_spam_me on 29 Mar 2006 04:34 shutle wrote: > I've been fidling with the end of my monitor vga cable for a while now > because there was dammage and the only way to get the colors right was > to move the cable around, sorta like ajusting an antena. > > Well now the cable doesnt show any color no matter how I twist and > turn it. Its a good 19" monitor and just because of the lowsy > vga plug it doesnt work. Not only that but the monitor was made so > that the vga cable could not be swapped. The monitor consists of several wires and coaxial cables, all inside a shield braid or foil. The ordinary wires in there aren't hard to splice by soldering and covering with heatshrink. Each coax cable's center conductor can be spliced similarly, but then the shield has to be spliced. The shield is usually made of either copper or aluminum braid (silver color can mean either aluminum or tin-plated copper) or aluminized Mylar foil with a bare stranded wire running next to it. Splice both that foil (aluminum foil works) and the bare wire. With braid, add new braid and let it overlap at least an inch on each end. However most monitor cables break right where they enter the monitor case, making a splice like that impractical because the splice is too thick to fit through the opening, and the break is usually just a few inches from where the cable plugs into the circuit board. So it's usually better to simply cut the cable short and connect it directly to the socket or even solder it directly to the board after removing the header pins. New socket pins for the connector can be bought separately from an electronics supply, and usually the socket pins and plastic connector bodies are sold separately anyway. You'll have to dress the ends of each coaxial cable properly by trimming back the shield and covering the bare stranded wire with heatshrink and then the whole end of the shield with heatshrink for mechanical strength. If the cable has no bare wire but only braid, you'll have to connect your own stranded wire to the braid. The insulator over the coax's center conductor may be a plastic that melts at a very low temperature and may even be foam, which can disappear when heated. Unplug the AC cord before opening the monitor case, and beware that parts inside can retain high voltage afterward, especially the CRT (do not touch the thick cable going to its side). Also dangerous is the glass of the CRT. Don't bump, scratch, or hit the glass (especially the neck), and don't let the monitor tip foward, where almost all the weight is concentrated. It may be safest to work on the monitor while it's face-down If you decide to use the new cable, you'll have to match its individual wires to the original one by using an ohm meter connected to each end, and you cannot assume that the two cables have identical color codes.
From: do_not_spam_me on 29 Mar 2006 04:34 shutle wrote: > I've been fidling with the end of my monitor vga cable for a while now > because there was dammage and the only way to get the colors right was > to move the cable around, sorta like ajusting an antena. > > Well now the cable doesnt show any color no matter how I twist and > turn it. Its a good 19" monitor and just because of the lowsy > vga plug it doesnt work. Not only that but the monitor was made so > that the vga cable could not be swapped. The monitor consists of several wires and coaxial cables, all inside a shield braid or foil. The ordinary wires in there aren't hard to splice by soldering and covering with heatshrink. Each coax cable's center conductor can be spliced similarly, but then the shield has to be spliced. The shield is usually made of either copper or aluminum braid (silver color can mean either aluminum or tin-plated copper) or aluminized Mylar foil with a bare stranded wire running next to it. Splice both that foil (aluminum foil works) and the bare wire. With braid, add new braid and let it overlap at least an inch on each end. However most monitor cables break right where they enter the monitor case, making a splice like that impractical because the splice is too thick to fit through the opening, and the break is usually just a few inches from where the cable plugs into the circuit board. So it's usually better to simply cut the cable short and connect it directly to the socket or even solder it directly to the board after removing the header pins. New socket pins for the connector can be bought separately from an electronics supply, and usually the socket pins and plastic connector bodies are sold separately anyway. You'll have to dress the ends of each coaxial cable properly by trimming back the shield and covering the bare stranded wire with heatshrink and then the whole end of the shield with heatshrink for mechanical strength. If the cable has no bare wire but only braid, you'll have to connect your own stranded wire to the braid. The insulator over the coax's center conductor may be a plastic that melts at a very low temperature and may even be foam, which can disappear when heated. Unplug the AC cord before opening the monitor case, and beware that parts inside can retain high voltage afterward, especially the CRT (do not touch the thick cable going to its side). Also dangerous is the glass of the CRT. Don't bump, scratch, or hit the glass (especially the neck), and don't let the monitor tip foward, where almost all the weight is concentrated. It may be safest to work on the monitor while it's face-down If you decide to use the new cable, you'll have to match its individual wires to the original one by using an ohm meter connected to each end, and you cannot assume that the two cables have identical color codes.
From: Paul on 29 Mar 2006 12:57
In article <M3oWf.201186$l04.157875(a)fe09.news.easynews.com>, no(a)spam.invalid (shutle) wrote: > HI, this is my first post here because I Guess this is a hardware > problem indeed and the only sollution I can think of is splicing . > I'll cut to the chase... > I've been fidling with the end of my monitor vga cable for a while now > because there was dammage and the only way to get the colors right was > to move the cable around, sorta like ajusting an antena. > > Well now the cable doesnt show any color no matter how I twist and > turn it. Its a good 19" monitor and just because of the lowsy > vga plug it doesnt work. Not only that but the monitor was made so > that the vga cable could not be swapped. ?:crybaby: > > Bassicaly I need to splice it! Any advice... > I already bought a vga cable and checked it out, it has more small > wires in it then by monitor cable and their all color coded... Splicing coax cable, by breaking the shield, would upset the impedance of the cable. It is supposed to be a constant 75 ohms, and where you break the shield, there will be a "reflection" that could affect the picture quality. It would be better to connect a new VGA cable right inside the monitor, but depending on how the cable is connected inside the monitor, it might require soldering. You have two concerns there. Whether you have the necessary skills to do the repair. And whether you know what not to touch inside the monitor. The picture tube of the monitor can carry a substantial high voltage charge, with an associated health risk. If you have no experience with electronics, with soldering, or with the proper installation of coax cables, take it to a professional. A TV repair shop may be able to help you. Paul |