soildering a 301.013

[littlelarryjr]

When grounding the jtag on the ird do I attach a wire or run soilder across all 10 back pins?

my 301.013 has 20 pins total and I know the back 10 are ground. Just wondering which one of the 10 to ground, or all of them?

[skinerd]

When grounding the jtag on the ird do I attach a wire or run soilder across all 10 back pins?

my 301.013 has 20 pins total and I know the back 10 are ground. Just wondering which one of the 10 to ground, or all of them?

NO, the back 10 are not all ground...........only some of them are, verify with an ohm meter. I know pin 20 is ground, cause I use that.

[littlelarryjr]

so I only have to attach pin 20 to all 14-25 on the db25 conector?

[skinerd]

so I only have to attach pin 20 to all 14-25 on the db25 conector?


Not 14-25, on the 25 pin lpt connector, only 18-25.

[littlelarryjr]

so here goes.........lpt2-jtag9, lpt3-jtag11, lpt4-jtag13, lpt5-jtag19, lpt13-jtag15 and
lpt18 through lpt25-jtag20.

Oh and R79 to ground.

Ok I am gunna try, my brain hurts from so much reading.