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Old 16 October 2019, 15:24   #1
ItsTheSmell
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first recap of 1200

Alright guys, I've just done my first ever recap of a 1200, the fit n finish is a bit ropey but it looks like everything it in place. 2 of the tracks had its coating removed because I couldn't remove the solder so I painted over it with my birds nail varnish. I'm bricking turning it on, are there any checks I can do? Are all nail varnishes OK or do I need a special kind?

Last edited by ItsTheSmell; 16 October 2019 at 15:30.
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Old 16 October 2019, 15:32   #2
ItsTheSmell
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I got bored so turned it on, I've got a serial port dongle and pins 6 & 8 are reported as bad, is this an issue? All parallel pins are bad, the dongles are from PC diagnostic software called microscope2000.
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Old 16 October 2019, 16:30   #3
AmigaHope
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Amiga ports are slightly different from typical Intel PC serial and parallel ports. Close enough to be compatible with most devices, but still some pin differences.
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Old 16 October 2019, 17:33   #4
ItsTheSmell
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Thanks Amigahope, the left mouse button doesnt work, its the rev 2B mainboard. Any ideas?
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Old 16 October 2019, 17:37   #5
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Was it working before the recap? The left mouse button is pretty straightforward and is handled by the U7 CIA. Check the voltage on pin 6 of the port (should be close to 5V when the button is not pressed, 0V when it is). Use a multimeter to check the relevant traces between the port and the CIA.

Just for clarity, there are no electrolytic capacitors directly involved in the left mouse button operation.
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Old 16 October 2019, 17:39   #6
ItsTheSmell
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Cheers daedalus, the left Amiga key was depressed by the case (its nit fitted together properly yet. Alls good.
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Old 16 October 2019, 17:45   #7
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Ah, easy fixes are always good
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Old 16 October 2019, 19:02   #8
ItsTheSmell
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So I've got a disc called Bugs Bunny that will not run on a machine with 2.0mb, it says not enough memory. So I ran it on my good 1200 with 4.0mb of ram and it runs OK. On this new one I'm getting a guru:<br />
0100 000F<br />
0020 DC78<br />
<br />
According to my docs,<br />
<br />
01 equates to exec library failure.<br />
00 equates to no error<br />
000F equates to the exact error which has occurred but my documentation doesn't go as high as 000F. Can anyone shed any light on this?<br />
000F equates to

Last edited by ItsTheSmell; 16 October 2019 at 23:02.
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