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Factory fabricated board solder?

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Posted on June 10, 2012 at 13:25:04
mashley
Audiophile

Posts: 355
Location: New Orleans
Joined: July 31, 2010



Decided to pull the guts from my Netgear Eva digital entertainer to have a look inside the thing and decided might as well upgrade all the (crappy) caps.

On the power board no problems, However, on the main board I cant seem to melt the solder? Do I need a new (hotter) iron or should I leave this thing be?

The solder has a weird grey color to it, whats the deal with this?

 

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RE: Factory fabricated board solder?, posted on June 11, 2012 at 12:15:08
6bq5
Audiophile

Posts: 4390
Location: SF Bay
Joined: August 16, 2001
 It is very possible that if the main PCB was 'wave-soldered' that it used a higher temp solder - and if there are lots of surface mount devices on the PCB then that is almost certainly the case.
a hotter iron - or if you have one of the Weller units with different temp. tips - changing to a higher temp should do the trick.

Happy Listening,
Happy Listening

 

RE: Factory fabricated board solder?, posted on June 13, 2012 at 15:56:20
unclestu
Dealer

Posts: 5851
Joined: April 13, 2010
 weird gray solder=probably lead free solder, particularly true if the unit is marketed in Europe. You'll need a higher temp tip (700 degree) and some external flux.

Stu

 

RE: Factory fabricated board solder?, posted on June 14, 2012 at 06:42:24
Tweekeng
Audiophile

Posts: 2093
Joined: September 9, 2005
 And DO NOT use rosin flux or rosin core solder.

Use one of the more modern flux and 'clean core' solders

 

RE: Factory fabricated board solder?, posted on June 18, 2012 at 14:55:21
unclestu
Dealer

Posts: 5851
Joined: April 13, 2010
 Never had problems with rosin core flux, BUT I regularly wash off any residue with alcohol.

Stu

 

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