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replacing emitter on sandwich

vtunderground

Enlightened
Joined
May 26, 2004
Messages
945
Location
Roanoke, VA
Is it possible to replace the emitter on a sandwich? My FireFly came with a BB400 sandwich that has an unacceptably blue tint. I'm willing to sacrifice the stock emitter if I have to, I just need to know if removing the emitter will damage the sandwich in any way (or if there's any other reason this wouldn't work).

Thanks!
 
unless you power up your sammich while you changing the emitter, replacing the emitter with a better one is not going to damage the sammich in any way.
if you are ok to damage the stock, just unsolder the 2 leads on the current emitter and remove the emitter from the sammich. then solder your next one on the sammich.

however, afaik, dat put some part of the leads of the current emitter inside the sammich, so you might want to cut the leads off.
 
You can change the emitter on all sandwiches from the shoppe. We use Arctic Alumina grease under the LED.

It might take some careful soldering, but, it is not that difficult to remove the LED and put another one in the way you removed it.

I do recommend a good soldering iron, magnifying glass, well lit area, panavise or equivalent, solder and solder wick.

Try to not get any flux on the perimeter as this will make the module intermittent. Removing the flux if you happen to get any on the perimiter should be done with the flat portion of dull exacto knife held parallel to the board and gently scraping the surface. This should remove any contaminants and flux if done correctly and not mar the solder tin plating.

Do not use chemical cleaners as this will dissolve the flux and leave a residue that is very very hard to get rid of.


Wayne
 
[ QUOTE ]
dat2zip said:
Do not use chemical cleaners as this will dissolve the flux and leave a residue that is very very hard to get rid of.

[/ QUOTE ]

Does this include rubbin alcohol?
 
greenLED,

Yes, rubbing Alcohol would be one that dissolves the flux and would leave a thin film behind.
 
that explains why I've been having to scrape gunk off, even after using the alcohol... and there I was wondering where it came from... /ubbthreads/images/graemlins/stupid.gif

Thanks, Wayne!
 

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