Description
Situation 3: Dell e151fp ( equivalent to Acer Chassis that is FP553 energy or power on then shutdown soon
Solution 3: Solder out the faulty C605, C707, C703 capacitor, the faulty power ic UC3842B, faulty resistors R613, R623, R615, faulty transistor Q601, defective diode D604= 1N4148 and fuse F601. Solder the brand new parts back to the circuit.
No matter how severe fault level of lcd monitor, the soldering work is always involved in repairing lcd monitor from above examples. You can find the next articles explain the soldering that is basic advance soldering technique of the outer lining mounted devices (SMD) on our web site.
1) Tools for soldering
2) Soldering safety and health
3) Photos for soldering joints that are dry circuit boards
To be aware of soldering iron dc and soldering iron bit, please go to the internet site best soldering iron for circuit boards (https://electronics-guides.yolasite.com/).
Given that the tops are tabbed, flip them all over (sunny part down), but, slip out of the tabbing strip through the first one so it lays throughout the straight back associated with the next. Do the same all of the way down your "string". You'll be soldering the strip to your contact points regarding the relative straight back for the cells. In case your cells are like mine, there will be 6 tiny contact that is whitish. Make sure your tab strips make so they really shall sit throughout the contact spots then apply flux to your spots. Hold your soldering iron to your strip on the spot when its hot, touch the solder wire to the point and allow the solder movement, do not apply excessively plus don't over temperature the contact as you may harm the cellular. An alternate is to use a solder paste on the contact, lay the tab on and hold the iron in the point till it flows, for me personally, this was an improved solution. Do the same for many six contact points, will have two cells connected. Continue this process for the cells that are solar the string.
It is a pretty idea that is good make sure that you have got good solder connections, by exposing the cells to light and testing the output voltage. At the very least, check each string, its too late if you have linked them all up to get there is a "dry solder" somewhere and have now to trace it straight back. With the sequence of cells all soldered together, there is one more thing to accomplish. During this period you'll have at one end for the sequence, the very last one, with its "top tabs" free. But at the beginning of the sequence, nothing to hook up to. And that means you need certainly to solder a short amount of tabbing strip to your back of this "top" (first) cellular to possess one thing for connecting to and complete a circuit. So, regarding the "first" cell, solder tabbing strips across the rear contacts with an adequate amount of a free end to enable you something in order to connect to. Now you will have connecting tabs at both ends of the string willing to connect to its neighboring sequence or perhaps a connector coach. Actually, now it saves some double handling that you have read this far, its a good idea to do solder this "first" set of back tabs before soldering up a string.