with my limited eyesight and maplins £15 soldering iron
another A500+ green screen, so.. what the hell I'll have a go.
got my magnifying glass and googled A500+ schematics.
30 mins later and after removing the battery, cleaning up and picking off all the hard green off the 74L chips near where the battery was. I started to meter all of the tracks.
I found 2 broken tracks right at the pins U12 , bridged the chip to the "other" solder pads nearby (test points ??)
and plugged in and powered on and what a lovely sight no more green screen.
happy bunny,, Iv'e just goto find a replacement FDD now as df0: does not read disks (cleaned heads), booted the A500+ from an external drive no issues
another A500+ green screen, so.. what the hell I'll have a go.
got my magnifying glass and googled A500+ schematics.
30 mins later and after removing the battery, cleaning up and picking off all the hard green off the 74L chips near where the battery was. I started to meter all of the tracks.
I found 2 broken tracks right at the pins U12 , bridged the chip to the "other" solder pads nearby (test points ??)
and plugged in and powered on and what a lovely sight no more green screen.
happy bunny,, Iv'e just goto find a replacement FDD now as df0: does not read disks (cleaned heads), booted the A500+ from an external drive no issues
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