13 Nov
1997
13 Nov
'97
4:11 p.m.
On Thu, 13 Nov 1997, Tony Duell wrote:
The individual subslots (6 to a slot here) are
lettered, with A nearest
the PSU and F nearest the front panel in this machine. If you pull a
card, set it down component side up, edge fingers towards you, then A is
on the right, F on the left
Alright.
The pins in the slot are also lettered, using DEC's alphabet which avoids
characters that could be confused. Starting at the back (PSU side), they
are called : A B C D E F H J K L M N P R S T U V.
OK
The sides of the board are numbered. Side 1 is the
component side, Side 2
is the solder side.
Now, you want to cut the jumper between CA1 and CB1 (the 2 pins are on the
same connector). So, that's on the 3rd connector from the PSU (2 between
it and the PSU, 3 between it and the front panel), the rearmost (closest
to the PSU) 2 pins on the component side of the board.
Can you find it from that description?
Uhh... That's what I already cut.
Looks like something WORSE is screwed up...
Just one quick thing. Pull the UDA50 cards. Check that
(a) one of the
cards (I think it's the one without the disk cable) has traces from those
2 pins going into the logic and (b) the other card has these 2 pins
shorted together.
The board with the drive connector has them shorted, and the one without
the cable has them going off into the logic.