TRS-80 / System 80

From: stephen johnston <stephenj_at_mail.ru>
Date: Mon May 5 22:15:24 2003

-----Original Message-----
From: Alan Greenstreet <aeg_at_paradise.net.nz>
To: cctalk_at_classiccmp.org
Date: Sat, 3 May 2003 22:52:02 +1200
Subject: TRS-80 / System 80

>
> Hi All
>
> I have just acquired a System 80 MkII (distributed in Australasia by
> Dick Smith Electronics).
>
> On power up I get the LED power light ok but a screen full of random
> characters, the reset switch does nothing. I've had it apart and there
> are no loose connections or chips on the two main boards and no sign of
> any burnt or expired components.
>
> Has anyone had similar problems and / or knows what the problem is?
>
> Thanks
>
> Alan
>
check the power rails for good +5,-5 and +12
then check the 4116 ram chips.
when they fail they get very hot.
Received on Mon May 05 2003 - 22:15:24 BST

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