28 Dec
2008
28 Dec
'08
2:20 p.m.
Glen Slick wrote:
On Sun, Dec 28, 2008 at 5:15 AM, Jerome H. Fine wrote:
http://www.bitsavers.org/pdf/dec/terminal/vt103/MP00731_VT103_Aug80.pdf
Page 73 of 76, VT103 BACKPLANE
So forgive my inexperience here -- but just to make sure I'm
understanding the changes I need to make -- is all that's necessary just
wiring up the address lines (18-21) from slot 1, to slot 2, to slot 3,
to slot 4?
Also, just to satisfy my curiosity -- it's been mentioned by several
people that lead-based solder is necessary -- why is this? (I think I
have a spool of it somewhere that I liberated from my grandfather's
basement some years back, but I'll have to dig it up...)
Thanks!
Josh
Address
bits 18 - 21 are on BC1 - BF1 (SSPARE4 - SSPARE7)
BC1 - BDAL18L
BD1 - BDAL19L
BE1 - BDAL20L
BF1 - BDAL21L
A diagram would be helpful to identify the required points on the
backplane.