yes, the original clock signals come from some of the traces under
the chip and some that are visible. after i sliced under the pins,
it took me a while to reconnect some of the other connections i had
also severed. i had to look at the schematics and reconnect certain
points to others that receive the same clock signal.

basically, i left the clock input pins to the gate ic soldered to
the circuit board for structural stability. i cut all traces
connecting to them so they were completely isolated, then drilled
tiny holes in the the small bits of trace left connected to the pins
so i could thread the 555 oscillator output wires up through the
circuit board to connect to the pins. this allowed me to keep the
wires steady while soldering to the pins, and is structurally really
stable. it was such small work that i had to look through a
magnifying glass and flashlight to do the soldering.


--- In tr-707@yahoogroups.com , "acousmatique" <acousmatique@y...>
wrote:

> --- In tr-707@yahoogroups.com , "gregory zifcak"

<foleymachine@y...> wrote:

> > i used a pin vise to drill
> > tiny holes in the clock pin traces. then i stuck wires up

through

> > the holes and soldered them to the traces. now there is no
> > mechanical stress on the pins.
>
> Do you mean that the original clock signals come from the traces

under and

> around the gate IC And that severing all of those traces, you use

the PCB to

> send the new clock signal to the gate chips pins I am just trying

to be certain,

> because I am not 100% clear on how this works! I have put new

clock signals

> through along with the originals, which sounds quite interesting,

at times.

>
> CJ