I got a good "new" Dallas DS1742W-150 from NAC in St. Petersburg, Florida.
I had ordered some low profile pin carrier matching sockets, guaranteed to
be here by today, but the Post Office lost track of them after they hit the
PO in Dallas, TX. I had also bought two ZIF sockets, but those will NOT
fit on the TDS3032 board.
So, I used individual, old fashion, lead carrier pins that I had on-hand.
I had to sacrifice two 16 pin lead carrier "sockets" to make on 24 pin
socket. When the carriers are removed, it all individual pins sticking out
of the board, so it takes careful work to keep them all straight and
aligned.
The scope booted up the first time with no errors!!! ...except the
background color was red instead of blue. It was rather stunning actually,
but I knew that wasn't right. I re-booted holding in the "B-TRIG" key to
perform a cold boot. That worked. The scope is looking good again.
It appears to be holding its GPIB address, the time and date, and the SPC
calibration.
Now that it works, I can dremmel in to the old Dallas chip and find the
battery and try to create an external battery for this chip. That way when
this "new" chip dies, or the one in my backup TDS3032 dies, I will have a
better solution.
Thanks to everyone that had suggestions on here on in the EEVBlog Forum,
that helped to eventually lead me to this fix. it's great to have my old
buddy back in the test setup again! Happy days are here again!
Dave
