Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!caen!spool.mu.edu!uunet!mcsun!ukc!acorn!osmith
From: osmith@acorn.co.uk (Owen Smith)
Newsgroups: comp.sys.acorn
Subject: Re: Repairs (was Re: Floppy drive disk errors)
Message-ID: <7961@acorn.co.uk>
Date: 24 Jun 91 14:01:45 GMT
Article-I.D.: acorn.7961
References: <11238@castle.ed.ac.uk>
Sender: osmith@acorn.co.uk
Distribution: comp
Organization: Acorn Computers Ltd, Cambridge, England
Lines: 19

In article <11238@castle.ed.ac.uk> gtoal@castle.ed.ac.uk (G Toal) writes:

>Does anyone know of a local (London) service centre who isn't afraid
>to unsolder a chip and replace it?  Preferably while you wait?

Teach yourself to solder and then do it yourself. To remove a chip when
you haven't got one of those amazing chip desolder tools, you use cutters
to cut all the legs off the chip. Then you can desolder the legs one by one.
You will need a solder sucker for this - otherwise you'll never get the
solder out of the plated-through holes. Getting a friend to help you also
works wonders - one person with the soldering iron on one side of the board,
the other person with the sucker on the other side. Solder a turned pin chip
socket in, and put the replacement chip in the socket. No problem. I use one
of those dirt cheap Antex 17W soldering irons, so you don't even need
expensive gear.

Owen.

The views expressed are my own and are not necessarily those of Acorn.