Simple basic solder iron repair query

Discussion in 'Technical Repair' started by uzielkr, Oct 7, 2016.

  1. uzielkr

    Thread Starter New Member

    Oct 7, 2016
    Hi, my solder iron is burnt (attached image) and now while repairing it, i dont know what to connect where, I am assuming I can connect red wire (2) to red (4), blue (1) to end of diode (5) and bulb (3) to (5), please guide if this is correct or this will blow up.
  2. AlbertHall

    Distinguished Member

    Jun 4, 2014
    Just to check; The cable at the top goes to a mains plug and the thing at the bottom is the actual iron?
    I am confused by the diode. Does your iron have a high/low power switch?
  3. uzielkr

    Thread Starter New Member

    Oct 7, 2016
    Yes, the top wire goes to the mains & the bottom is the actual iron. No, my solder iron is the simplest with no type of control what so ever.
  4. ci139


    Jul 11, 2016
    whats the color code on the resistor (if it were to indicate "plugged to wall"/"AC present" the typical value for would be 330kΩ ||||)
    if they use neon the diode should go after this
    or the R+neon goes in parallel to diode (indicating the "heating up") if it has a thermal relay at that side

    do you remember when your light was bright dim ON OFF previously

    see also ( -- with hv~ac you dont want just to solder the leads (melting off by sparking) but fix them by screws or terminal lugs

    not the best but better than your current method
    Last edited: Oct 7, 2016
    uzielkr likes this.