Reverse Engineering 15 yr old electronics

Tony Duell ard at p850ug1.demon.co.uk
Sat Nov 12 15:28:31 CST 2005


> Obviosuly you do not want the board powered at all - insure that caps are
> discharged, batteries removed etc.

Whether you use the 'foil square shorting probes' method or not, you want 
to remove any any sources of power, like batteries, before starting. 
Desolder soldered-in NiCds, etc.

Also remvoe any components that will test as shorts and will therefore 
confuse you. Low-value resistors (how low depends on your tester, 
probably < 10 ohms), inductors, transformers, etc.In the case of 
2-terminal axial components, you just need to desolder one end and lift 
it from the PCB. And make a diagram of what goes where and which way 
round :-)

-tony


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