Common repair methods for electric soldering irons
1. Repair method for soldering iron that does not heat up after being powered on
(1) When the electric soldering iron is powered on and it is found that the tip of the soldering iron is not hot, it is usually because the power cord has fallen off or the core wire of the soldering iron is broken. In such a situation, you can use the R×lkn block of the multimeter to measure both ends of the power plug. If the multimeter pointer If it doesn't move, it means there is an open circuit fault.
(2) First check whether the leads of the plug itself are open. If not, you can remove the bakelite handle, and then use a multimeter to measure the two leads of the soldering iron core. If the multimeter pointer still does not move, it means that the soldering iron core is damaged and the soldering iron should be replaced. Heart.
(3) The resistance between the two leads of the 35W internal heating soldering iron core is 1. Around Skfl, if the measured resistance value is normal, it means that the soldering iron core is good. The fault occurs in the power lead and the plug itself. Most faults are lead wire breakage. If the soldering iron core needs to be replaced, insert a new soldering iron core of the same specifications into the connecting rod, fix the lead on the fixing screw, and tighten the terminal. At the same time, be sure to cut off the excess part of the lead of the soldering iron core to prevent two leads. short circuit.
2. Maintenance method of live iron head
(1) The cause of the soldering iron head's electrification failure is that in addition to the wrong connection of the power cord to the ground wire terminal, there is another reason, which is that after the power cord fell off the soldering iron core terminal, it hit the ground wire screw again. This causes the soldering iron tip to become charged.
(2) This kind of failure can easily cause electric shock and damage components. To prevent the power cord from falling off, you need to regularly check whether the crimping screw on the soldering iron handle is loose or missing. If it is loose or missing, remove it. Prepared in time.
