Re: [ukvac] Re: tech: bombjack ram 5
Hi
I have now figured which ram it is, but its not the
ram chip that is faulty.
Ram 5 is in the middle of the top board, but gets
written to from the bottom board, which is where the
fault is.
I thought that ram 5 was on the bottom board because I
knew the top board worked fine.
Odly ram 5 holds the text layer, which if it is faulty
you won't see the test screen!. In this case the
screen is very garbled so I can see enough to
establish this.
I have tried the hot chip thing before, but I didn't
know to leave the board on for 5 mins so it never
really worked for me, I will try that next time,
thanks.
Rob
--- David Smethurst <david@smethurst75.fsnet.co.uk>
wrote:
>
> Not sure which is RAM 5 without looking at the
> schematics, but you
> could try this method:
>
> Leave the board running for four or five minutes,
> then place your
> finger on top of each RAM chip in turn. The one
> that's fecking hot and
> burns your finger is the faulty one
>
> If that doesn't work I'll dig out the schematic...
>
> Dave
>
>
>
>
