Re: lisa 2 startup problems

Hi everybody,

long time no post.
I have done some more tests and come to the conclusion the card edge connector for the IO board has to be changed. I waited 3 weeks for 3 connectors to arrive from Korea and today they finally arrived. I have changed the one from the IO Board and all the sockets and capacitors on the IO board but with little success.

No when I press the power button, LISA turns on but only as long I keep the button pressed, as I release it it will go off again.

Any suggestions?
Thanks!

joi, 15 noiembrie 2012, 01:17:32 UTC+2, PSchaefer a scris:
>
> Am Mittwoch, 14. November 2012 20:25:07 UTC+1 schrieb Alex:
>
>
>> On the card edge connector I measure also 0V on the /RESET pin. this
>> means the system is kept in reset state on the motherboard.
>>
>
> There is an electrolytic capacitor (C8) next to the 68000 CPU. Usually it
> gets leaky, then /Reset is stuck low.
>
> In case you don't have a replacement available, just cut it away. Then
> you'll have to press the Reset button once to start the CPU (after power-up)
>
>
> Patrick
>
>
>
>
>

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