Repair Of Circuit Board Solder Connections

Grumpy · Oct 29, 2020

circuit board repair work requires far more precise and pinpoint solder work,
In a few cases the source of the problem is very obvious after a close detailed inspection of both sides of a circuit board under a bright light with good reading glasses.
in many cases vibration or age can damage a printed circuit board that costs hundreds of dollars to replace IF you can find one in good working order at all.
in many cases a close inspection under good lighting and decent magnification will show cracked and easily re-solderable connections to loose components like capacitors, resistors, transistors, light sockets or fuse holders etc.

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a single loose solder connection can put a whole circuit board out of service.
in many cases a close inspection and some multi-meter testing will allow a minor solder repair to make it totally functional again

https://www.ebay.com/i/352236583661...ylRC-GrkirSyJIWRneQc8UNqelxe5iDxoCoKwQAvD_BwE

https://gokimco.com/products/hakko-fx888d-digital-soldering-station?variant=31349108113460&utm_source=google&utm_medium=cpc&utm_campaign=Google Shopping&gclid=CjwKCAjw0On8BRAgEiwAincsHLGZcHQi3MgTv47fmFd7-Qc3B3vvWQfb1HnU893RW9gks2gezJ99VxoCzRIQAvD_BwE

https://www.nytimes.com/wirecutter/reviews/best-soldering-irons/
circuit board repair work is generally done on much smaller and more precise component connections

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yeah a de-soldering gun may occasionally prove useful to remove excess solder

https://usa.banggood.com/ProsKit-SS...AVRI2i6lczgS43BoCXFoQAvD_BwE&cur_warehouse=CN

if you're doing repairs on sensor pigtails a solder gun
(like pictured below)
is very useful.
but those solder guns are too large and difficult to use ,
on delicate pin point circuit board repair work
http://www.bing.com/shopping/weller-wel ... ORM=CMSPEE
anything under about 200 watts rating is basically a P.I.T.A. to use and a TOY in my opinion,
(and an electric soldering gun with 250-300 plus watts is much easier to use)

http://www.cpooutlets.com/wall-lenk-lg400c-150-400w-soldering-gun/walnlg400c,default,pd.html?ref=bingpla&zmam=31282435&zmas=47&zmac=748&zmap=walnlg400c&utm_source=bing&utm_medium=cpc&utm_campaign=CPO Outlets - PLA - Updated&utm_term=4582008550901832&utm_content=All Products

a 150/400 watt gun makes soldering much easier

https://www.ebay.com/itm/Wall-Lenk-...750?_trksid=p2349526.m4383.l4275.c10#viTabs_0

simply because you can't quickly bring the wire and solder up to the correct temps,
with anything less than 200 watts rapidly

http://stellartechnical.com/d650gun.aspx
good 60/40 lead/tin solder
http://www.bing.com/shopping/4-oz-40-60 ... ux&FORM=EG

http://www.sears.com/seismic-audio-sa-s ... tType=SRDT
http://www.radioshack.com/product/index ... d=12582872