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Old 01 April 2011, 14:47   #1
danko
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Amiga 1200 Mouse Port issue

Hi, I was soldering a 10 pin connector on the motherboard amiga 1200 REV 1.4D, because what was there was not detachable, now the mouse does not go right and left, I may have done something, can you help me?
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Old 02 April 2011, 02:46   #2
Hewitson
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Check connection from pin 5 of mouse port to Paula pin 35.

Schematics available here: http://www.ianstedman.co.uk/Amiga/sc...chematics.html
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Old 23 March 2015, 00:08   #3
volvo_0ne
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resurrected.......

I have the same problem, looking at the schematic posted above, I would suggest that R352 (or something pulling the +5v line low) is the most likely suspect .

I'll update if i resolve the issue.

any further help would be gratefully received on this issue.


symptoms ....... slight (1px) left/right pointer movement when mouse moved in circles otherwise everything is fine

tia for reading
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Old 01 April 2015, 17:11   #4
DaveDoc1984
 
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Hi, I too have a mouse issue with my A1200. Basically it is behaving like the Right Mouse Button is being held down all the time when it is not. I have tried different Mice also to make sure its not the actual Mouse I was using and the same result happens. Any ideas on what could be the cause of this? I have sent my A1200 Motherboard to Amiga Kit and they have had it the best part of 2 months but haven't fixed it yet.

Thanks
Dave
 
Old 01 April 2015, 17:21   #5
hese
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Either the Paula chip or some track/via near the Paula is broken.
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Old 01 April 2015, 17:31   #6
DaveDoc1984
 
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Hopefully Amiga Kit can sort that out pretty quickly if they have established that . I haven't had my A1200 working since September and I miss it like crazy!

Any advice on getting a better and more efficient PSU for it?

Dave
 
Old 01 April 2015, 23:17   #7
kipper2k
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Quote:
Originally Posted by danko View Post
Hi, I was soldering a 10 pin connector on the motherboard amiga 1200 REV 1.4D, because what was there was not detachable, now the mouse does not go right and left, I may have done something, can you help me?
do you have some pictures ?
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