Free Windows Help Tutorials sponsored by inkjet printer cartridges dot org /title> <META HTTP-EQUIV="imagetoolbar" CONTENT="no"> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=ISO 8859-1"> <META name="description" Content="Hundreds of downloadable Windows help tutorials, articles and how-to guides sponsored by inkjet printer cartridges dot org."><style type="text/css">  </style> </head> <body bgcolor=#999999 vlink=blue link=blue> <span name = "INTRA" class="pg" style="top:0px; left:5px; width:707px; height:954px"></span> <span name = "INTRA" style='top:0px; left:5px; height:954px; width:707px' class='img'> <img src="pg0002im.png" height = "954 width = "707" border="0"> </span> <span class='nav' style='left: 10px; top: 10px'><pre></pre></span><span name = "INTRA" style='top:30px; left:39px' class="ft0"><pre><font face='Helvetica'><b>Problem Solving:General</b></font></pre></span> <span name = "INTRA" style='top:183px; left:82px' class="ft1"><pre><font face='Arial'>terial needs to be heated. With a</font></pre></span> <span name = "INTRA" style='top:182px; left:268px' class="ft1"><pre><font face='Arial'>tor as it has many fracture lines in it.</font></pre></span> <span name = "INTRA" style='top:182px; left:468px' class="ft1"><pre><font face='Arial'>ring stations that include an electric</font></pre></span> <span name = "INTRA" style='top:195px; left:82px' class="ft1"><pre><font face='Arial'>small component being soldered</font></pre></span> <span name = "INTRA" style='top:195px; left:269px' class="ft1"><pre><font face='Arial'>Dry joints should be removed and re </font></pre></span> <span name = "INTRA" style='top:194px; left:468px' class="ft1"><pre><font face='Arial'>pump to remove the solder. While re </font></pre></span> <span name = "INTRA" style='top:207px; left:83px' class="ft1"><pre><font face='Arial'>to a printed circuit board, the iron</font></pre></span> <span name = "INTRA" style='top:207px; left:269px' class="ft1"><pre><font face='Arial'>made.</font></pre></span> <span name = "INTRA" style='top:206px; left:468px' class="ft1"><pre><font face='Arial'>markably efficient, they are very ex </font></pre></span> <span name = "INTRA" style='top:219px; left:83px' class="ft1"><pre><font face='Arial'>should not stay on for more than a</font></pre></span> <span name = "INTRA" style='top:218px; left:468px' class="ft1"><pre><font face='Arial'>pensive and unnecessary for the vast</font></pre></span> <span name = "INTRA" style='top:231px; left:83px' class="ft1"><pre><font face='Arial'>couple of seconds. Similarly with</font></pre></span> <span name = "INTRA" style='top:232px; left:268px' class="ft2"><pre><font face='Arial'><i><b>Removing Solder</b></i></font></pre></span> <span name = "INTRA" style='top:231px; left:468px' class="ft3"><pre><font face='Helvetica'>majority </font></pre></span> <span name = "INTRA" style='top:231px; left:510px' class="ft1"><pre><font face='Arial'>of PC support departments.</font></pre></span> <span name = "INTRA" style='top:243px; left:83px' class="ft1"><pre><font face='Arial'>connectors where metal pins are</font></pre></span> <span name = "INTRA" style='top:255px; left:83px' class="ft1"><pre><font face='Arial'>inserted into plastic holders, as if</font></pre></span> <span name = "INTRA" style='top:254px; left:282px' class="ft1"><pre><font face='Arial'>Removing solder from a joint</font></pre></span> <span name = "INTRA" style='top:256px; left:469px' class="ft2"><pre><font face='Arial'><i><b>Tinning</b></i></font></pre></span> <span name = "INTRA" style='top:267px; left:83px' class="ft1"><pre><font face='Arial'>the soldering iron is kept on for</font></pre></span> <span name = "INTRA" style='top:267px; left:269px' class="ft1"><pre><font face='Arial'>usually requires either desoldering</font></pre></span> <span name = "INTRA" style='top:279px; left:83px' class="ft1"><pre><font face='Arial'>too long the plastic will melt.</font></pre></span> <span name = "INTRA" style='top:279px; left:268px' class="ft1"><pre><font face='Arial'>braid or a desoldering pump (some </font></pre></span> <span name = "INTRA" style='top:278px; left:482px' class="ft1"><pre><font face='Arial'>There is another use for a soldering</font></pre></span> <span name = "INTRA" style='top:291px; left:69px' class="ft1"><pre><font face='Arial'>4. When you think the joint is ready,</font></pre></span> <span name = "INTRA" style='top:290px; left:269px' class="ft1"><pre><font face='Arial'>times built into a soldering iron).</font></pre></span> <span name = "INTRA" style='top:290px; left:469px' class="ft1"><pre><font face='Arial'>iron. If you have to deal with stranded</font></pre></span> <span name = "INTRA" style='top:303px; left:83px' class="ft1"><pre><font face='Arial'>introduce some solder onto the</font></pre></span> <span name = "INTRA" style='top:303px; left:269px' class="ft1"><pre><font face='Arial'>Desoldering braid is usually copper</font></pre></span> <span name = "INTRA" style='top:303px; left:468px' class="ft1"><pre><font face='Arial'>wires (ie, a wire that is made up of</font></pre></span> <span name = "INTRA" style='top:315px; left:83px' class="ft1"><pre><font face='Arial'>joint. It should flow freely, and</font></pre></span> <span name = "INTRA" style='top:315px; left:268px' class="ft1"><pre><font face='Arial'>braid soaked in flux. The joint is</font></pre></span> <span name = "INTRA" style='top:314px; left:469px' class="ft1"><pre><font face='Arial'>multiple strands of copper) it can be</font></pre></span> <span name = "INTRA" style='top:327px; left:83px' class="ft1"><pre><font face='Arial'>this is helped if you can get the</font></pre></span> <span name = "INTRA" style='top:326px; left:269px' class="ft1"><pre><font face='Arial'>heated, then the desoldering braid ap </font></pre></span> <span name = "INTRA" style='top:326px; left:468px' class="ft1"><pre><font face='Arial'>difficult to ensure all the strands go</font></pre></span> <span name = "INTRA" style='top:339px; left:83px' class="ft1"><pre><font face='Arial'>solder between the iron and the</font></pre></span> <span name = "INTRA" style='top:339px; left:269px' class="ft1"><pre><font face='Arial'>plied to the joint. The solder is drawn</font></pre></span> <span name = "INTRA" style='top:339px; left:469px' class="ft1"><pre><font face='Arial'>where you want them to, and not to</font></pre></span> <span name = "INTRA" style='top:351px; left:83px' class="ft1"><pre><font face='Arial'>joint. If the solder doesn't melt, try</font></pre></span> <span name = "INTRA" style='top:350px; left:269px' class="ft1"><pre><font face='Arial'>into the braid, so leaving the joint rela </font></pre></span> <span name = "INTRA" style='top:350px; left:469px' class="ft1"><pre><font face='Arial'>accidentally create short circuits. By</font></pre></span> <span name = "INTRA" style='top:363px; left:83px' class="ft1"><pre><font face='Arial'>repositioning the iron on the joint.</font></pre></span> <span name = "INTRA" style='top:362px; left:269px' class="ft1"><pre><font face='Arial'>tively solder free. The quality of desol </font></pre></span> <span name = "INTRA" style='top:362px; left:469px' class="ft1"><pre><font face='Arial'>applying a thin coat of solder to the</font></pre></span> <span name = "INTRA" style='top:375px; left:83px' class="ft1"><pre><font face='Arial'>Large amounts of solder are rarely</font></pre></span> <span name = "INTRA" style='top:375px; left:269px' class="ft1"><pre><font face='Arial'>dering braid varies enormously, and</font></pre></span> <span name = "INTRA" style='top:375px; left:469px' class="ft1"><pre><font face='Arial'>wire (tinning it), the strands will be</font></pre></span> <span name = "INTRA" style='top:387px; left:83px' class="ft1"><pre><font face='Arial'>required. Aim to have just enough</font></pre></span> <span name = "INTRA" style='top:386px; left:269px' class="ft1"><pre><font face='Arial'>some will only work properly with cer </font></pre></span> <span name = "INTRA" style='top:386px; left:469px' class="ft1"><pre><font face='Arial'>kept under control and the wire will be</font></pre></span> <span name = "INTRA" style='top:399px; left:83px' class="ft1"><pre><font face='Arial'>to coat the pieces of the joint and</font></pre></span> <span name = "INTRA" style='top:398px; left:269px' class="ft1"><pre><font face='Arial'>tain types of solder.</font></pre></span> <span name = "INTRA" style='top:398px; left:469px' class="ft1"><pre><font face='Arial'>much easier to manage. Simply strip</font></pre></span> <span name = "INTRA" style='top:411px; left:83px' class="ft1"><pre><font face='Arial'>provide a bridge between them.</font></pre></span> <span name = "INTRA" style='top:410px; left:283px' class="ft1"><pre><font face='Arial'>A desoldering pump is either a</font></pre></span> <span name = "INTRA" style='top:411px; left:468px' class="ft1"><pre><font face='Arial'>back some of the insulation from the</font></pre></span> <span name = "INTRA" style='top:423px; left:69px' class="ft1"><pre><font face='Arial'>5. Once the joint looks finished, care </font></pre></span> <span name = "INTRA" style='top:422px; left:269px' class="ft1"><pre><font face='Arial'>spring loaded piston or rubber bulb</font></pre></span> <span name = "INTRA" style='top:422px; left:469px' class="ft1"><pre><font face='Arial'>wire and twist the strands together.</font></pre></span> <span name = "INTRA" style='top:435px; left:83px' class="ft1"><pre><font face='Arial'>fully remove the solder then the</font></pre></span> <span name = "INTRA" style='top:434px; left:269px' class="ft1"><pre><font face='Arial'>with a nozzle at one end. The pump is</font></pre></span> <span name = "INTRA" style='top:434px; left:469px' class="ft1"><pre><font face='Arial'>Then, applying the soldering iron to</font></pre></span> <span name = "INTRA" style='top:447px; left:83px' class="ft1"><pre><font face='Arial'>iron. Doing it the other way round</font></pre></span> <span name = "INTRA" style='top:447px; left:269px' class="ft1"><pre><font face='Arial'>primed (either by compressing the</font></pre></span> <span name = "INTRA" style='top:447px; left:469px' class="ft1"><pre><font face='Arial'>one side of the wire, feed solder into the</font></pre></span> <span name = "INTRA" style='top:459px; left:83px' class="ft1"><pre><font face='Arial'>can result in the solder being stuck</font></pre></span> <span name = "INTRA" style='top:458px; left:269px' class="ft1"><pre><font face='Arial'>spring or squeezing the bulb) and ap </font></pre></span> <span name = "INTRA" style='top:458px; left:469px' class="ft1"><pre><font face='Arial'>strands to join them together.</font></pre></span> <span name = "INTRA" style='top:471px; left:83px' class="ft1"><pre><font face='Arial'>to the joint. The soldered joint</font></pre></span> <span name = "INTRA" style='top:470px; left:269px' class="ft1"><pre><font face='Arial'>plied to the heated joint. The pump is</font></pre></span> <span name = "INTRA" style='top:470px; left:483px' class="ft1"><pre><font face='Arial'>Note that tinning is not recom </font></pre></span> <span name = "INTRA" style='top:483px; left:83px' class="ft1"><pre><font face='Arial'>should be smooth and shiny. Any</font></pre></span> <span name = "INTRA" style='top:483px; left:269px' class="ft1"><pre><font face='Arial'>then released, causing it to suck the</font></pre></span> <span name = "INTRA" style='top:483px; left:469px' class="ft1"><pre><font face='Arial'>mended where the wire will be</font></pre></span> <span name = "INTRA" style='top:495px; left:83px' class="ft1"><pre><font face='Arial'>excess wire should be clipped off.</font></pre></span> <span name = "INTRA" style='top:494px; left:269px' class="ft1"><pre><font face='Arial'>molten solder up through the nozzle so</font></pre></span> <span name = "INTRA" style='top:494px; left:469px' class="ft1"><pre><font face='Arial'>clamped into position. Solder, being a</font></pre></span> <span name = "INTRA" style='top:506px; left:269px' class="ft1"><pre><font face='Arial'>cleaning the joint. The nozzle tip is</font></pre></span> <span name = "INTRA" style='top:506px; left:469px' class="ft1"><pre><font face='Arial'>very soft alloy, cold flows under press </font></pre></span> <span name = "INTRA" style='top:519px; left:83px' class="ft1"><pre><font face='Arial'>If the joint looks dull and rough (as</font></pre></span> <span name = "INTRA" style='top:519px; left:269px' class="ft1"><pre><font face='Arial'>usually teflon to resist the heat and</font></pre></span> <span name = "INTRA" style='top:518px; left:469px' class="ft1"><pre><font face='Arial'>ure. It would be possible that a wire</font></pre></span> <span name = "INTRA" style='top:531px; left:69px' class="ft1"><pre><font face='Arial'>in Figure 2) then you have a dry joint.</font></pre></span> <span name = "INTRA" style='top:530px; left:269px' class="ft1"><pre><font face='Arial'>prevent the solder from sticking to it.</font></pre></span> <span name = "INTRA" style='top:530px; left:469px' class="ft1"><pre><font face='Arial'>tightly clamped into a connector could,</font></pre></span> <span name = "INTRA" style='top:543px; left:69px' class="ft1"><pre><font face='Arial'>This is caused by either keeping the</font></pre></span> <span name = "INTRA" style='top:543px; left:269px' class="ft1"><pre><font face='Arial'>Desoldering pumps, especially the</font></pre></span> <span name = "INTRA" style='top:542px; left:469px' class="ft1"><pre><font face='Arial'>over time, have the solder flow away</font></pre></span> <span name = "INTRA" style='top:555px; left:69px' class="ft1"><pre><font face='Arial'>iron on the joint for too long so boiling</font></pre></span> <span name = "INTRA" style='top:555px; left:269px' class="ft1"><pre><font face='Arial'>spring loaded ones, tend to be more</font></pre></span> <span name = "INTRA" style='top:555px; left:469px' class="ft1"><pre><font face='Arial'>from the pressure spot so loosening the</font></pre></span> <span name = "INTRA" style='top:567px; left:69px' class="ft1"><pre><font face='Arial'>off the flux, or by moving the joint</font></pre></span> <span name = "INTRA" style='top:566px; left:269px' class="ft1"><pre><font face='Arial'>effective than desoldering braid as</font></pre></span> <span name = "INTRA" style='top:566px; left:469px' class="ft1"><pre><font face='Arial'>connection.</font></pre></span> <span name = "INTRA" style='top:579px; left:69px' class="ft1"><pre><font face='Arial'>while the solder was cooling. A dry </font></pre></span> <span name = "INTRA" style='top:579px; left:269px' class="ft1"><pre><font face='Arial'>long as they are regularly cleaned.</font></pre></span> <span name = "INTRA" style='top:591px; left:69px' class="ft1"><pre><font face='Arial'>joint provides a poor electrical conduc </font></pre></span> <span name = "INTRA" style='top:591px; left:283px' class="ft1"><pre><font face='Arial'>There are some specialist desolde </font></pre></span> <span name = "INTRA" style='top:592px; left:470px' class="ft2"><pre><font face='Arial'><i><b>Conclusion</b></i></font></pre></span> <span name = "INTRA" style='top:614px; left:483px' class="ft1"><pre><font face='Arial'>A bit of practise goes a long way. If</font></pre></span> <span name = "INTRA" style='top:623px; left:224px' class="ft2"><pre><font face='Arial'><i><b>Safety First</b></i></font></pre></span> <span name = "INTRA" style='top:627px; left:469px' class="ft1"><pre><font face='Arial'>you can get hold of an old printed cir </font></pre></span> <span name = "INTRA" style='top:638px; left:470px' class="ft1"><pre><font face='Arial'>cuit board and some wire, practise</font></pre></span> <span name = "INTRA" style='top:645px; left:94px' class="ft1"><pre><font face='Arial'>It should really go without saying that a soldering iron gets hot! The</font></pre></span> <span name = "INTRA" style='top:650px; left:470px' class="ft1"><pre><font face='Arial'>making and desoldering joints until</font></pre></span> <span name = "INTRA" style='top:658px; left:80px' class="ft1"><pre><font face='Arial'>average iron used for light electrical work runs at around 250 degrees</font></pre></span> <span name = "INTRA" style='top:663px; left:469px' class="ft1"><pre><font face='Arial'>you can do it reliably.</font></pre></span> <span name = "INTRA" style='top:670px; left:80px' class="ft1"><pre><font face='Arial'>centigrade. This is more than enough to provide a nasty bum if you are</font></pre></span> <span name = "INTRA" style='top:682px; left:80px' class="ft1"><pre><font face='Arial'>careless.</font></pre></span> <span name = "INTRA" style='top:693px; left:94px' class="ft1"><pre><font face='Arial'>Also, the flux used in the solder tends to spit when hot. It's painful enough</font></pre></span> <span name = "INTRA" style='top:706px; left:80px' class="ft1"><pre><font face='Arial'>when a tiny spot lands on your skin, if it landed in your eye it would be</font></pre></span> <span name = "INTRA" style='top:718px; left:80px' class="ft1"><pre><font face='Arial'>considerably worse. Always wear some form of eye protection when solde </font></pre></span> <span name = "INTRA" style='top:730px; left:80px' class="ft1"><pre><font face='Arial'>ring. This is also true when using wire cutters to clip off excess wire the</font></pre></span> <span name = "INTRA" style='top:742px; left:80px' class="ft1"><pre><font face='Arial'>small, sharp piece of wire is often ejected at considerable velocity. Finally,</font></pre></span> <span name = "INTRA" style='top:754px; left:80px' class="ft1"><pre><font face='Arial'>try and avoid breathing the fumes coming off the solder for too long. There</font></pre></span> <span name = "INTRA" style='top:766px; left:80px' class="ft1"><pre><font face='Arial'>is considerable debate as to the long term effects of solder </font></pre></span> <span name = "INTRA" style='top:766px; left:375px' class="ft0"><pre><font face='Helvetica'><b>fumes, some</b></font></pre></span> <span name = "INTRA" style='top:778px; left:80px' class="ft1"><pre><font face='Arial'>studies suggest that if considerable quantities are inhaled then lung damage</font></pre></span> <span name = "INTRA" style='top:790px; left:80px' class="ft1"><pre><font face='Arial'>may result (flux is quite reactive).</font></pre></span> <span name = "INTRA" style='top:801px; left:94px' class="ft1"><pre><font face='Arial'>Be careful about what equipment you work on. A mistake made in a</font></pre></span> <span name = "INTRA" style='top:814px; left:80px' class="ft1"><pre><font face='Arial'>printer cable may result in a broken printer, but a mistake in a power supply</font></pre></span> <span name = "INTRA" style='top:826px; left:80px' class="ft1"><pre><font face='Arial'>or monitor could be dangerous. Only tackle equipment such as monitors,</font></pre></span> <span name = "INTRA" style='top:838px; left:80px' class="ft1"><pre><font face='Arial'>power supplies, uninterruptable power supplies, laser printers and electros </font></pre></span> <span name = "INTRA" style='top:850px; left:80px' class="ft1"><pre><font face='Arial'>tatic printers if you are qualified to do so. Also, do not attempt to repair</font></pre></span> <span name = "INTRA" style='top:862px; left:80px' class="ft1"><pre><font face='Arial'>surface mounted components unless you have specialist equipment and</font></pre></span> <span name = "INTRA" style='top:873px; left:80px' class="ft1"><pre><font face='Arial'>training.</font></pre></span> <span name = "INTRA" style='top:925px; left:44px' class="ft1"><pre><font face='Arial'>File: PO621.2</font></pre></span> <span name = "INTRA" style='top:923px; left:258px' class="ft4"><pre><font face='Arial'><b>PC Network Advisor</b></font></pre></span> <span name = "INTRA" style='top:925px; left:626px' class="ft1"><pre><font face='Arial'>Issue 28 20</font></pre></span> <span name = "INTRA" class='nav' style='left: 357px; top: 1010px'><pre><a href='page0001.htm'><</a> Next page <a href='page0001.htm'>></a></pre></span> <span name = "INTRA" style='top:1050px; left:50px' class="ft4"><pre><b><font color="#FF0000" size="3" face="Arial">New!</font><font color="#FF0000" size="3" face="Arial Narrow"> </font><font size="2" face="Arial">The best sites for quality <a href="http://www.inkjet-printer-cartridges.org">inkjet printer cartridges</a> and the best sites for <a href="http://www.cheap-inkjet-cartridges.com">cheap inkjet cartridges</a></font></b></pre></span></body> <span name = "INTRA" style='top:1100px; left:300px' class="ft4"><pre><b><font color="#FF0000" size="3" face="Arial"><a href="../index.html">Windows Help Desk Home</a> </font></b></pre></span></body></html>