
December 10,1984
Rob Horning

All the memory locations have been written to and read back.  No problems have
been found with the memory array.  The signals to the array look about like
what was expected.  The speed of the RAM chips is about what was expected.

The secondary clock was tested and was running slow.  This is due to a
parameter of the 555 timer that is not specified.  I am working with
TI to get this parameter specified.  This should not cause any major problems.

The 2.85 volt regulator seems to work fine.  The tantalum capacitor was
hooked up backwards.  Without this capacitor the output has an oscillation.

There was a PC layout error on the -2 regulator.  This works fine now that
it is fixed.  (I also need to add a capacitor to the output.)

The delay line works well.  The signals look clean and the delay is very close
to what I expected.

I am looking into setting up Hitachi as a RAM source.  I would like to make
about 20% of out next order for RAM's Hitachi.

I still do not have the AS243 buffers or the AS534 from TI.

I expect to get the exerciser PC board this week.

