English Amiga Board

Go Back   English Amiga Board > Support > support.Hardware

Thread Tools
Old 01 September 2016, 19:22   #1
Registered User

Join Date: Jan 2014
Location: Zurich / Switzerland
Posts: 79
What kind of part is EMI301 on a Amiga 3000D ?

Hi - I am working on my "new" Amiga 3000D. I found a blue part that looks damaged. But in order to replace, I need to know what kind/value it is.

Here's an image, it's directly connected to the external Serial port. On this schematics of the Amiga 3000D, it's part number EMI301.

Is this a resistor or a capacitor? Does somebody know the exact value?
salocinx is offline  
Old 01 September 2016, 20:05   #2
Registered User

Join Date: Sep 2015
Location: London, UK
Posts: 324
I could be wrong, but I thought they are just fuses.
Wrangler is offline  
Old 01 September 2016, 20:26   #3
Registered User
Join Date: Aug 2004
Posts: 3,169
It's to do with limiting electromagnetic interference (EMI). I'm not sure of the exact function, but they're not fuses. They may contain a capacitor which is connected to ground on one side.

If you're sure the function of that part is affected (and not just cosmetic damage) you could probably remove it and solder a wire link in its place. But first I'd check with a multimeter/continuity checker, as replacing it may not be necessary.

Edit to add: it's possible that something like the products shown here contain similar components embedded into them.
mark_k is offline  
Old 01 September 2016, 21:48   #4
Registered User
Join Date: Sep 2007
Location: Stockholm
Posts: 3,929
It's a ferrite bead inductor.
idrougge is offline  
Old 01 September 2016, 21:55   #5
Registered User

Join Date: Jan 2014
Location: Zurich / Switzerland
Posts: 79
Okay thank you! As suggested, I'll check the Serial port first, before replacing the part(s). It just attracted my attention while repairing the battery damage.
salocinx is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Aztec Monster SCSI to CF on Amiga 3000D ninevoltz support.Hardware 2 31 August 2014 05:06
TC514400Z-80 vs TC514402Z-80 in Amiga 3000D Geijer support.Hardware 5 28 November 2012 01:15
Amiga 3000D doesn't boot TMorita support.Hardware 6 26 March 2012 11:39
FOR SALE: Amiga 3000D on Amibay brett71 MarketPlace 0 23 August 2010 17:19
Amiga 3000D how much does it worth? Reynolds MarketPlace 3 24 November 2009 13:48

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +2. The time now is 01:14.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Page generated in 0.07596 seconds with 13 queries