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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: soviet on September 14, 2020, 08:48:16 PM
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Hi guys, a friend of mine asked me if i can fix an amiga 1200 that he got recently.
The motherboard is a 1200 rev 2b motherboard.
Testing the bare motherboard only, no accelerator or anything just monitor and power (the psu is an atx psu and is working on my 1200).
I always got a green screen.
Any tips on fixing this are welcome !.
Using the diagroms i got this:
(https://i.ibb.co/W03Jqf6/222index.jpg) (https://ibb.co/m0BW14G)
small video showing the colors and serial output from diagrom (no addons only base motherboard):
https://www.youtube.com/watch?v=Km6aRZVArGA&feature=youtu.be
then.
inserting a fast ram expansion got me other random results tried just turning on pressing left mouse button and right mouse button:
after this the test get stuck.
(https://i.ibb.co/G3n8rdy/index.jpg) (https://ibb.co/k65wPGj)
(https://i.ibb.co/qjwrdVg/ind3333ex.jpg) (https://ibb.co/1QxmLjX)
This means that i have to replace the chipram on the board ?, or could be other issues?
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memoryissues does NOT need to be a Memorychip being bad. it can be so much more.
1.2.1 sadly does not handle addresserrors.. 1.3 beta does.
btw kudos using a real terminal. RESPECT! :)
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memoryissues does NOT need to be a Memorychip being bad. it can be so much more.
1.2.1 sadly does not handle addresserrors.. 1.3 beta does.
btw kudos using a real terminal. RESPECT! :)
Thanks !, love old terminals.
Also is possible to get the 1.3 beta test rom dumps ?.
:D
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www.diagrom.com just download the "daily" version
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that terminal display is pretty cool