home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.dcom.modems
- Path: sparky!uunet!wupost!usc!rpi!batcomputer!cornell!uw-beaver!ubc-cs!unixg.ubc.ca!kakwa.ucs.ualberta.ca!access.usask.ca!ccu.umanitoba.ca!mona.muug.mb.ca!gremlin!charles
- From: charles@gremlin.muug.mb.ca (Charles)
- Subject: Re: 16550AFN replacement for soldered-in 8250.
- Message-ID: <1992Sep08.231048.3194@gremlin.muug.mb.ca>
- Organization: The Haunted Unix Box
- References: <715627191snx@crynwr.com>
- Date: Tue, 08 Sep 1992 23:10:48 GMT
- Lines: 28
-
- nelson@crynwr.com (Russell Nelson) writes:
-
- >My serial port board has one socket, and one soldered-in 8250. I
- >didn't want to use the socket, because that means buying the line
- >drivers and external DB-25.
-
- For which after doing the below, probably ended up costing you more!
- Those little cables can be picked up for a buck, and the drivers are what?
- 89 cents each?
-
- >I don't have the equipment for
- >desoldering a 40-pin IC. Wire-wicking the solder off each pin, while
- >an impressive feat, gets old fast.
-
- Get one of those de-soldering irons from Radio Shack with the bulb.
- (No, I'm not talking about a seperate iron and bulb, RS makes an iron
- with the bulb mounted on a steel tube that gets hot, melts the solder and
- is sucked into the tube). I bought mine several years ago, works like
- a charm. I can remove a 40 pin IC in 2-3 minutes.
-
- >So, I got out the trusty dikes,
- >and clipped off the pins of the 8250, and discarded it. I didn't
- >desolder the pins even though it would have been easy at that point.
- >I just put my shiny new 16550AFN over the remaining 8250 pins and
- >soldered them together.
-
- Probably not the most reliable thing to do, but if it works....
-
-