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Old 13 June 2019, 00:27   #1
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Location: Kassel
Posts: 158
Amiga 4000 Right mouse Button always pressed

Hi, i have a Problem with my a4000d
The Amiga was recapped a few years back and is working perfect expect one thing:

The right and middle mouse Button and the 2 and 3 Button is always pressed even if no mouse is connected.

The pot x Signal on Paula is ok ( if i press the right mouse Button the Voltage Drops from 5 v to 0 v)

So i changed Paula but it’s still Not working.

Any ideas? Is there something After Paula telling Amiga os that the Button is pressed ?
esel is offline  
Old 13 June 2019, 00:57   #2
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Just to rule a couple things out:
Does it still happen when the mouse is disconnected?
Are you able to try another mouse?
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Old 13 June 2019, 01:24   #3
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Yes, it happends Even if nothing is connected.
esel is offline  
Old 13 June 2019, 02:12   #4
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Maybe look in the area of U975 if it has suffered battery damage, but even that resistor R984 could cause it, maybe.

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