Posted By
crock
on 2014-05-15
02:24:05
 |  Re: When Are The Plus/4 Family Of Computers Considered To Be Dead ?
To date, I've never had a 264 machine that I could not find the problem on. As far as I can recall the only 8-bit Commodore that I have completely failed on is an 8032 PET which has an intermittent fault and blows fuses (I suspect there is an internal short in one of the soldered components.)
The most difficult cases are usually where someone has botched an attempted repair themselves. I fixed a couple of 64 boards last year where someone had tried to remove a couple of chips and the modulator and had then resorted to brute force, pulling out many via's (links between the bottom and top of the board) and tracks in the process. Took hours to repair and certainly not a cost effective use of my time but, as with many people in this hobby, I'm a bit obsessive/compulsive when it comes to fixing them. 
That's not to say that they are all working. For every 3 working machines, I probably have 1 which is a donor and missing many components.
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