PCB pads problem?

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • BigAlNZ
    Senior Member
    • Mar 2008
    • 65
    #1

    PCB pads problem?

    Hi Guys,

    When I recap, until I get my desolder gun, I just use wick, iron and a big safety pin for clean out the holes in the PCB.

    Now occasionally I think I am destroying the small pads on the bottom of the PCB, this combined with perhaps not quite the right cleaning technique means that when trying to solder the new caps in the solder doesnt flow.

    I have got flux clean and ISO alcohol. So after removing all the old solder, is that when I use the flux clean, or alcohol or both? Or is the flux clean only for when you have put the new caps in and are cleaning up?

    I need to get a bit better at this.....

    When the holes are clean, and the pads are there the solder flows really nicely.

    -Al
    Tags: None
    Previous template Next

    Related Topics

    Collapse
    • acedogblast
      Guide to transplant MEC1503 EC chip and EEPROM reprogamming for T14s gen 2 and X13 gen 2
      by acedogblast
      This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.

      There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as...
      11-02-2024, 05:13 PM
    • dbuergi
      Restore solder pads for SMC on MacBook A1466
      by dbuergi
      Hi all,

      i got a A1466 logic board for spare parts but it looks like the SMC ist bad. I got several spares but somehow i was too fast while removing it and ripped some pads off. You can see the damage attached.
      Just for experience i would like to restore the lost pads but before i start (haven't done this before) do you have some hints or tutorials how to do it?
      As written i want to improve skills so it doesnt matter if it takes longer.
      1 Photo
      12-29-2024, 10:24 AM
    • langbaobao
      DIY 3D-Printer WSON8 Pogo Pin Adapter
      by langbaobao
      Hi.

      I'm posting this here in part as a memo to self as well as to describe the procedure I used in case anyone else found it useful. I found a lot of the necessary information to make this work on this forum and I figured I would give something back. If this is not the appropriate place to post this, I don't mind it being deleted but I hope it can help other people.

      I got an admin password locked HP Elitebook 840 G5 recently that I wanted to unlock. I'm a relative newcomer to reprogramming and unlocking firmware. The only previous experience I had was unlocking a BIOS...
      01-08-2024, 05:58 PM
    • chth96
      Is it good to use chemistronic flux off es835b for flux remover?
      by chth96
      I want to purchase any good flux remover But "chemistronic flux off es835b" is the most common flux remover in my nation..
      Is it good to use chemistronic flux off es835b for flux remover?
      Or I have to purchase "3m novec flux remover" which is quite expensive in my nation?
      11-17-2023, 07:25 AM
    • abajor
      A2141 820-01700 Water Damage L8504 Damaged, U3100/U3200 power cycles UB300/UB400 5V .25A
      by abajor
      Like title says A2141 came in with Water Damage, customer desperately wants the data.

      The actual water ingress doesn't appear too bad it sat for a day but was very dusty internally. I have no idea why L8504 was arced there is no apparent moisture there or around the LVDS cable; however, the LVDS to screen screw studs had popped off at some point and somebody tried securing it with kapton tape.

      I had to create a micron wire pad jumper to reconnect the south side of the L8504 since the primary pad was blasted down to the vias.

      That said after cleaning up the...
      12-21-2024, 07:16 PM
    • Loading...
    • No more items.
    Working...