Home |
Search |
Today's Posts |
|
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. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
|
#1
Posted to sci.electronics.repair
|
|||
|
|||
how do I solder a power switch to a mobile board
Hi
I have a nokia 3200 mobile whose power switch was detached. How can I solder it back on? Should I be using a soldering gun with a rosin core solder? As you know the surfaces are too small and this in addition to the intensive heat could destroy the board. How can this be done the right way? Is there some sort of liquid solder suitable for mini-components ? |
#2
Posted to sci.electronics.repair
|
|||
|
|||
how do I solder a power switch to a mobile board
"interuser" wrote in message ups.com... Hi I have a nokia 3200 mobile whose power switch was detached. How can I solder it back on? Should I be using a soldering gun with a rosin core solder? As you know the surfaces are too small and this in addition to the intensive heat could destroy the board. How can this be done the right way? Is there some sort of liquid solder suitable for mini-components ? You need a fine tipped iron, some fine solder and some SMT skills, definitely NOT a soldering gun! If the switch is detached, are you sure it didn't take the solder pads with it? That would make a straightforward repair into a very tricky or even impractical one. Dave |
#3
Posted to sci.electronics.repair
|
|||
|
|||
how do I solder a power switch to a mobile board
Dave D wrote: "interuser" wrote in message ups.com... Hi I have a nokia 3200 mobile whose power switch was detached. How can I solder it back on? Should I be using a soldering gun with a rosin core solder? As you know the surfaces are too small and this in addition to the intensive heat could destroy the board. How can this be done the right way? Is there some sort of liquid solder suitable for mini-components ? You need a fine tipped iron, some fine solder and some SMT skills, definitely NOT a soldering gun! If the switch is detached, are you sure it didn't take the solder pads with it? That would make a straightforward repair into a very tricky or even impractical one. Dave Can I have (pointers to) more instructions as to how to solder the switch? What are solder pads? The contact points are silver if this helps. I did manage to power on the mobile by connecting those points via a wire |
#4
Posted to sci.electronics.repair
|
|||
|
|||
how do I solder a power switch to a mobile board
"interuser" wrote in message oups.com... Can I have (pointers to) more instructions as to how to solder the switch? What are solder pads? The contact points are silver if this helps. Solder pads = contact points. The fact they are still silver indicates they are probably OK, so that's a good start. I did manage to power on the mobile by connecting those points via a wire That's Good. You'll need a fine tipped soldering iron, preferably a temperature controlled one but it's not essential. Use fine rosin cored solder. Put the switch in place, and if possible get someone to hold it down for you. When you are happy that the switch is located correctly, apply the tip of the iron gently to one of the switch legs and solder pad. Quickly put the solder onto the contact (not the iron!) and it should flow freely and join the leg and the contact point. Repeat on each connection. Each one should take a second of soldering time, any more and something is wrong- either your iron is not hot enough, your technique is incorrect or the parts to be soldered are tarnished/coated with something. If you keep the iron on too long, the solder pad and possibly the switch will be destroyed and the repair will be difficult to impossible. While working on the phone, you must take antistatic precautions. Working on an earthed metal kitchen sink will suffice if you don't have antistatic wristbands etc. Dave |
#5
Posted to sci.electronics.repair
|
|||
|
|||
how do I solder a power switch to a mobile board
On Fri, 9 Jun 2006 17:04:49 +0100, "Dave D"
opined: "interuser" wrote in message I did manage to power on the mobile by connecting those points via a wire That's Good. You'll need a fine tipped soldering iron, preferably a temperature controlled one but it's not essential. Use fine rosin cored solder. Put the switch in place, and if possible get someone to hold it down for you. A wooden clothes peg (possibly with the jaws whittled to a suitable shape) is great for this. When you are happy that the switch is located correctly, apply the tip of the iron gently to one of the switch legs and solder pad. Quickly put the solder onto the contact (not the iron!) and it should flow freely and join the leg and the contact point. Repeat on each connection. Each one should take a second of soldering time, any more and something is wrong- either your iron is not hot enough, your technique is incorrect or the parts to be soldered are tarnished/coated with something. If you keep the iron on too long, the solder pad and possibly the switch will be destroyed and the repair will be difficult to impossible. nods *Quickly* (1-2 seconds) tinning the switch legs & the PCB pads will make the above quicker & easier. Let both parts cool for a short time (30 seconds) before soldering them to each other. -- W . | ,. w , "Some people are alive only because \|/ \|/ it is illegal to kill them." Perna condita delenda est ---^----^--------------------------------------------------------------- |
#6
Posted to sci.electronics.repair
|
|||
|
|||
how do I solder a power switch to a mobile board
Lionel wrote: On Fri, 9 Jun 2006 17:04:49 +0100, "Dave D" opined: "interuser" wrote in message I did manage to power on the mobile by connecting those points via a wire That's Good. You'll need a fine tipped soldering iron, preferably a temperature controlled one but it's not essential. Use fine rosin cored solder. Put the switch in place, and if possible get someone to hold it down for you. A wooden clothes peg (possibly with the jaws whittled to a suitable shape) is great for this. When you are happy that the switch is located correctly, apply the tip of the iron gently to one of the switch legs and solder pad. Quickly put the solder onto the contact (not the iron!) and it should flow freely and join the leg and the contact point. Repeat on each connection. Each one should take a second of soldering time, any more and something is wrong- either your iron is not hot enough, your technique is incorrect or the parts to be soldered are tarnished/coated with something. If you keep the iron on too long, the solder pad and possibly the switch will be destroyed and the repair will be difficult to impossible. nods *Quickly* (1-2 seconds) tinning the switch legs & the PCB pads will make the above quicker & easier. Let both parts cool for a short time (30 seconds) before soldering them to each other. -- W . | ,. w , "Some people are alive only because \|/ \|/ it is illegal to kill them." Perna condita delenda est ---^----^--------------------------------------------------------------- I am not expert on using the soldering iron and I am afraid I may damage the circuit. Isn't there another way of doing this? How about liquid solder or something else? |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
PowerMac G4 (Quicksilver) Power Supply | Electronics Repair | |||
Tablesaw power switch reloaction | Woodworking | |||
LeCroy Oscilloscope/ VME/ CAMAC/ NIM/ FASTBUS repair | Electronics Repair | |||
Power Supply Repair | Electronics Repair | |||
Metal Working Machinery New and Used in Australia and for Export | Metalworking |