Date   : Fri, 17 Aug 2007 12:56:36 +0100
From   : fragula@... (Fragula)
Subject: Troubleshooting Techniques

On the B's it usually seem to be that darned keyboard cable for me, but
then I do tend to run 'em with the lid off and the keyboard floating
around, which makes it easier to change proms, solder flying wires to IC
legs etc. with the power on, and simultaneously use the mobo as a coffee
coaster/ashtray. :-/

Anyone got a source/item name for the cable and connectors used by the
model B keyboard?

I have to get some (a few metres of cable, a few dozen connectors)
anyway, as I have a large vintage mixing console (i.e. music studio
stuff with "symmetrical class-a discrete pres", for those interested.)
that uses these for a bus.

Cheers!

M.



Alex Taylor wrote:

>On 17/08/07, Ian Tonks <itonks@...> wrote:
>  
>
>>This thread has got me thinking about a dead Master I've got lying around.
>>It appears to not boot because the 6502 is not starting because the reset is
>>being held high.
>>    
>>
>
>Some time ago I posted on here asking for troubleshooting tips,
>because I've got a few tatty Beebs that only power up to a continuous
>tone. I got a reply pointing to a really useful document containing
>descriptions of what could cause this.
>
>I lost the link and can't find it despite much searching. Can anyone
>shed any light on this?
>
>The only Beeb I fixed was the one with the scrolling fault, using info
>from the service manual. One of the others gave the startup screen
>after 30 minutes of being left on, then immediately crashed.
>
>  
>