Date : Thu, 19 Jun 2003 20:03:00 +0100
From : Mike Tomlinson <mike@...>
Subject: Re: BBC B PSU delay
In article <779b2a24c%mjfoot@...>, Michael Foot
>My Model B takes a couple of minutes to start up from a cold switch on, but
>starts straight away everytime after that. Could someone remind me which
>the PSU needs replacing to cure this?
Capacitor C9. It's very near the switching transistor heatsink, which
causes it to get hot and ultimately fail. 220uF if I recall correctly.
Make sure you use a good quality 105degC replacement.