Re: [CAD_CAM_EDM_DRO] How do I test IC SN74LS541N on PCB?

Hi Bruce

Why not just replace them all? You can buy 25 of them from Digikey for 15
bucks and change.

Bob

----- Original Message -----
From: "Bruce" <bruce@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, February 12, 2006 9:28 PM
Subject: [CAD_CAM_EDM_DRO] How do I test IC SN74LS541N on PCB?


> Hello,
>
> Hoping some elctronics wizard can help me with this.
> I have an Anilam M controler that is not working and would like to see
> if I can fix it before I try a retrofit
> So heres the question: can I bench test this IC? SN74LS541N, here is
> link to download the datasheet:
> http://www.datasheets.org.uk/download.php?article=2355104
> There are 20 of these on the green tab board. I've been told by Anilam
> one or more are bad, now I need to find which one.
> Can I do this with a power supply, logic probe and logic pulser?
> testing each circuit in the chip one by one.
> I am extremely electronically challenged, so you will need to spell it
> out for me, if it can be done at all.
> Your help will be greatly appreciated.
>
> Bruce
>
>
>
>
>
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...,
timg@...
> Moderator: pentam@... indigo_red@... davemucha@...
[Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
> __________ NOD32 1.1404 (20060211) Information __________
>
> This message was checked by NOD32 antivirus system.
> http://www.eset.com
>
>