Dummies guide to cap change

JACK98

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I have few amiga's that will soon be due an capacitor change

After reading this great thread about the A1200 cap change-
http://eab.abime.net/showthread.php?t=47326

im aware i will have to tackle this job soon.I have few basic questions-

1-The cap list.I assume they are all smd caps.And i just copy and paste whats required into the order list so i wont have to worry about anything else?.Ie if i copied and paste 10uF x 35V into cpc farnell list *they sell panasonic capicators*,i will get this list http://cpc.farnell.com/jsp/search/br...atchallpartial which i assume is ok?

2-Is it possible to remove all caps then replace them later or is it a job of doing one at a time so you can remember where they go_Or is replacing one at time risky due to heat disburse?.

3-Neg/positive markings-isn't it correct that the marking on the top of the smd cap is the negative side?.

4-Whats the ideal iron wattage?25,40,100w?.I tried 15w and found it rubbish.
 
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davideo

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Question 1 is the easy one - there was a user on here selling a complete list of caps for the different Miggys. Have a look for the thread. Edit: thread found https://www.amibay.com/showthread.php?t=4400

Question 2 - a circuit diagram or good high quality pictures will help you put them back in the right place.

Question 3 - see attached details.

Question 4 - not sure about heat wise. Zetr0 will help you here....

Anthony Hoffman has some good advice on his site (y)

Dave G :cool:
 

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JACK98

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@davideo-ty for your reply :)
5-what's best solution to clean up electrolyte leaks.Can contact cleaner or methylated spirits be used?.
 
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davideo

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If I can spell it - I always use Isoprolalchahol - were's your dictionary when you need it :D

Available from your local chemist after the grilling of why you need it :D :D

Dave G :cool:
 

Witcher1979

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I actually would not mind getting this done myself at some stage. Job is way to big for me though. Any UK users here that offer this service at all?

Cheers
 

abraXXious

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Dont want to hijack the thread, but this might be of interest to anyone in Oz.

Nathan at AmigaManiac does cap replacements to any Amiga for $30.00 + cost of caps (he onyl charges COST price of caps, which is just a few dollars).

He has done my a2k, a3k a4k, Cyberstorm Mk III (small boards/expansions boards he charges less), daughterboards etc. He is fast, friendly and professional. I highly recommend him.

He even does PSU upgrades (A4k etc psus upgraded to 550 watt with extra molex connectors, sata connectors etc).

Hope this info is helpful.
 

Witcher1979

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davideo

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Question 4 - not sure about heat wise. Zetr0 will help you here....

Dave G :cool:

You see - I said Zetr0 would be the one to ask :D

Dave G :cool:
 

rkauer

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An ordinary iron of 40~60W can make the job very comfortably. Just don't use too much solder and remember to use flux, prefer ecological flux if you are rich enough.

With common flux you have to wash the area with IPA (=isopropanol=isopropylic alcohol) and tuck the board into the dishwasher after that.
 
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