27 Jul
2018
27 Jul
'18
9:43 a.m.
I have other 2116 cpu manuals, getting time to do anything to find them or look for
differences is a problem.
On 7/27/18 4:14 AM, Christian Corti via cctalk wrote:
Ok, so I've got the computer almost running now. I
now need to fix both sense amplifier cards. One (0..4k) sometimes
reads a one for bit 3 after the machine has warmed up. The other (4..8k) has a stuck one
for bit 7.
Swapping these cards make the errors move to the other core bank respectively.
I have the newer cards, 02116-6298, not the older 02115-6001
The latter has CA3028A used as sense amplifiers. My card uses HP 1820-0183 (metal can IC
from RCA). I guess that it is
also a CA3028A or maybe a CA3053. Can anyone confirm this?
Next, the manual on bitsavers (02116-9153_2116B_Vol2_Oct70, and the same as found on the
hpmuseum site) not only
contains some errors (see my other post about the front panel lamps). It has also some
badly scanned pages with parts
missing, notably page 5-50 (PDF page 350) lacks the right part of the page. Is there a
better scan available? My 1968
copy does not list the 02116-6298.
Christian