1k resistor, matter which way it goes?
10-30-2006, 12:13 AM
#11
3.0 BAR
Join Date: May 2004
Posts: 5,042
Re: 1k resistor, matter which way it goes?
Originally Posted by AJxr
i said those were the only ones i de-soldered, re-read
Originally Posted by AJxr
i found out its easiest to just un-solder where the eprom and hc74373 will go.
Don't come around asking some dumb questions then try to tell people what the score is.
10-30-2006, 06:32 AM
#12
1.0 BAR
Join Date: Apr 2006
Posts: 503
Re: 1k resistor, matter which way it goes?
Tips on soldering can be found on the megasquirt build guide. They give a good write up on how to solder and what can go wrong.
Most likely you are getting dry joints where the solder isn't taking properly to the chip's leg or the pcb. This is probably due to a lack of heat on the joint or something similar.
I use isopropanol alcohol to clean pcb's, but any solvent cleaner will do a reasonable job (not acetone!) clean any grease from the pcb and your more like to get a successful solder joint.
You shouldn't need a soldering iron much larger then 15w for chipping.
pgmfi.org's guide to chipping assumes a level of knowledge most people don't necessarily have. Mind you, its probably better that way, there are alot of idiots in this world.
Most likely you are getting dry joints where the solder isn't taking properly to the chip's leg or the pcb. This is probably due to a lack of heat on the joint or something similar.
I use isopropanol alcohol to clean pcb's, but any solvent cleaner will do a reasonable job (not acetone!) clean any grease from the pcb and your more like to get a successful solder joint.
You shouldn't need a soldering iron much larger then 15w for chipping.
pgmfi.org's guide to chipping assumes a level of knowledge most people don't necessarily have. Mind you, its probably better that way, there are alot of idiots in this world.
11-19-2006, 09:58 PM
#14
1.5 BAR
Join Date: Jul 2005
Posts: 724
Re: 1k resistor, matter which way it goes?
Originally Posted by DrSeuss
You shouldn't need a soldering iron much larger then 15w for chipping.
11-20-2006, 11:38 PM
#15
0.0 BAR
Join Date: Oct 2005
Posts: 0
Re: 1k resistor, matter which way it goes?
Originally Posted by Hellbert
i got down on my board witha 45w...think i burned anything up? more wattage means you get done faster....right :1 i guess it means you get to do it twice, i dont want to have to do this but one more time
11-20-2006, 11:51 PM
#16
0.0 BAR
Join Date: Mar 2005
Posts: 32
Re: 1k resistor, matter which way it goes?
I love my soldering station. Turn it down for an IC, crank the bitch up for injector wires, etc. Wasn't horribly expensive either.... If your going to do ---- like this often, its a great investment. And heat guns are just pimp.
11-22-2006, 11:12 PM
#17
1.5 BAR
Join Date: Jul 2005
Posts: 724
Re: 1k resistor, matter which way it goes?
Originally Posted by snm95ls
Hope you don't solder ICs directly to the board with that huge bastard.
hahaha fuuuuck looks like xenocrons getting some more of my money... :1 radio shack will too hahaha damn it man!
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