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Anyone doing their own repair or maintenance?
Old 11th February 2013 | Show parent
  #61
Lives for gear
 
Rooftree's Avatar
 
🎧 10 years
Quote:
Originally Posted by 8golftango ➡️
... discharge capacitors before working on them
How do you go about doing this? I've wondered about this in the past.
Old 11th February 2013
  #62
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Xero's Avatar
 
🎧 10 years
a proper desoldering station was the best investment I made.

I tried pumps, wick, etc, but nothing beats a dedicated desoldering station with pump and all that...another trick they won't tell you: add more solder to the joint before attempting to de-solder it. It helps get the old solder flowing and when you go back in with the desoldering iron, it will all just come out easily...They even have special alloy solders you can use for this with lower melting points, but simply adding some fresh solder to an old joint is usually all you need! The special alloys are more useful for SMT work...
Old 11th February 2013 | Show parent
  #63
Gear Maniac
 
orpheus_'s Avatar
 
🎧 10 years
Quote:
Originally Posted by Boschen ➡️
The ground differential between the earth and mars must be in terra-jigga-watts.
Lol, terra-jigga-watts
Old 11th February 2013 | Show parent
  #64
Gear Maniac
 
orpheus_'s Avatar
 
🎧 10 years
Quote:
Originally Posted by Praxisaxis ➡️
Opinions on solder suckers vs solder wicks?

I've only used a sucker, which works quite well but you need to get the angle right.
I use both .. here's my own personal rule of thumb, it's probably not "right" or "wrong"...

- apply some new solder to soften the old hard solder first
- Heat sink the component if it's going back in
- Use solder sucker if it fits flush over the pcb (for best suction)
- Use solder sucker for through hole pcbs
- use wick for stubborn solder
- for removing ICs, i apply more solder and heat up the whole lot, then just pull it out once the solder is molten (careful on heat sensitive components) ... then remove solder once the component's out. turns a 10 minute job into 30 seconds
- clean up after using flux remover

apparently the solder vacuums are great but i've never bothered...

orph
Old 11th February 2013 | Show parent
  #65
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Praxisaxis's Avatar
 
🎧 10 years
Quote:
Originally Posted by orpheus_ ➡️
- for removing ICs, i apply more solder and heat up the whole lot, then just pull it out once the solder is molten (careful on heat sensitive components)
orph
Thanks. When heating up say 8 or so connections on an IC, how do you keep them all molten though?

(not that I have to do this any time soon, just curious)
Old 11th February 2013 | Show parent
  #66
Lives for gear
 
🎧 5 years
Quote:
Originally Posted by Praxisaxis ➡️
Thanks. When heating up say 8 or so connections on an IC, how do you keep them all molten though?

(not that I have to do this any time soon, just curious)
use an long flat angled tip on the iron and hold across all the legs. or use a forked tip. i would assume, if you dont have those. use a pair of snips and cut the legs off the ic, then desolder the remains one by one.
Old 12th February 2013
  #67
Gear Maniac
 
orpheus_'s Avatar
 
🎧 10 years
Quote:
Originally Posted by Praxisaxis ➡️
Thanks. When heating up say 8 or so connections on an IC, how do you keep them all molten though?

(not that I have to do this any time soon, just curious)
I just run the tip up and down along the legs. If you add enough solder so they all join into one big blob the solder conducts the heat and melts all the legs at once without getting too hot
Old 12th February 2013
  #68
Lives for gear
 
🎧 10 years
Quote:
Originally Posted by orpheus_ ➡️
I just run the tip up and down along the legs. Of you add enough solder so they all join into one big blob the solder conducts the heat and melts all the legs at once without getting too hot
Do this if you want to destroy your PCB tracks!
Old 13th February 2013 | Show parent
  #69
Gear Maniac
 
orpheus_'s Avatar
 
🎧 10 years
Quote:
Originally Posted by Futureman84 ➡️
Do this if you want to destroy your PCB tracks!
haven't had a problem, however I'm pretty practiced at soldering. That said I wouldn't do it on a PCB where the tracks are flaking off or brittle. Some old synths still have PCBs in really good condition - some are in pretty bad shape..
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