36

[Notebook page 32]

1145 Jan. 18
Ran High Speed Checkboard to try to find
marginal mechanical problems in CORE 2. Found
several balun boards which failed when tapped
with a screwdriver. Fix was to erase the contacts
on the balun boards. Also found a bad 1998
in 2J6 which had to be replaced.
J. Gleason

18 Jan 1:00
(1) TTY6 (next to am) not sending line feeds
part of time.
(2) Low order couple bits of spacewar buttons not
being seen sometimes by calli 33.
Pringle

[printout taped to page]
CORE PARITY ERROR, LOCATION 000000212603 OPND=776477457774
PC=350000145377 INSTR=202015007653
DATE=000641112474 TIME=1255:12
[hand written] Core3 MHM
[end of printout]

Jan 18
[printout taped to page]
CORE PARITY ERROR, LOCATION 000000276077 OPND=417131473146
PC=350000247601 INSTR=263740000000
DATE=000641112535 TIME=1325:12
[hand written] Core3 MHM
[end of printout]