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Old 18 March 2011, 12:33   #8
Loedown
Precious & fragile things

 
Join Date: Feb 2009
Location: Victoria, Australia
Posts: 1,946
Logic probe isn't a bad idea, but the problems may also be with a stuck line or reset, just to name two.

A picture of the board is essential, top and bottom, I have found that bending one row of pins ever so slightly on the trapdoor expansion plug can help in these sorts of situations.

As for the practise on a board, get yourself an old PC PCB, ie. 486 vintage or earlier and practise on those, good boards because they are thick and multilayer, if you can work on those without ripping out barrels or destroying tracks, you're well on your way to making yourself 'solder worthy' TM

'Solder worthy' is used courtesy of Amisynth and is a legal and binding statement whereby use is excluded for...

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