Evan, The plan is to start with the big stuff and work from there. Test the voltages, see if anything is way off and obvious, burned out or completely dead (0V). I have found that for me, I have to get the schematic and measure everything on the board, compare with the schematic. I am not an engineer, it takes me 4x as long to figure out what's wrong. Mostly I am persistent and I just keep at it. I get more work done at home than at the workshops, I guess because I have everything here as I like it. B
Bring it on Sunday. We'll look at it together. On Fri, Mar 10, 2017 at 9:41 PM william degnan via vcf-midatlantic < vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:
Evan, The plan is to start with the big stuff and work from there. Test the voltages, see if anything is way off and obvious, burned out or completely dead (0V). I have found that for me, I have to get the schematic and measure everything on the board, compare with the schematic. I am not an engineer, it takes me 4x as long to figure out what's wrong. Mostly I am persistent and I just keep at it. I get more work done at home than at the workshops, I guess because I have everything here as I like it. B
Bring it on Sunday. We'll look at it together.
Thanks. I talked to Dan and determined that its 6502 is compatible with the one in my //e. Carefully removed both and put the Laser's into the //e. The //e boots fine. So the problem is not the processor. The only other socketed chip in the laser is another Intel one which Dan said is the keyboard controller.
I put it back together. Only one extra screw (seriously). Now it works. All I did was remove and reinsert the processor.
participants (3)
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Dean Notarnicola -
Evan Koblentz -
william degnan