NEW AND IMPORTANT build the PCB for 9000a-z80 fluke 9010A

marian

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Hi All,

Seeing the lack of the Z80 pods on the market at reasonable prices, made me decide to go and build a pcb for it.

I am attaching the schematic that i come up with. I've done a few changes :

1. The network resistor called U11 on interface board with those different resistor values, i've replaced it with regular resistors. I don't think these can be found easily now.

2. Modified the clock circuit to not use the 4049. And instead a 74HCT04 with an additional resistor.

3. The PROM 2136 can be replaced with EPROM 2716. In the design i've used a 6116 with similar connections.

For the A1-A5 IC i used the ones in the original design. These can be found from existing pods, that are not used. I don't know how these can be replaced. But for a first version these should be good i think.

Note. The IC names starting with 2, it means are from the second board (cpu) on original schematic.

If you would like to take a look and make suggestions or see any problems with existing design that will be awesome.

I plan to print a few pcb out of this design. I guess they ask you for 5 pcs to print at
least.


Thanks a lot
Marian
 

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  • z80_pod_schematic.pdf
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