79

0900 1 Feb 68

De-interleaved

Looked at AMPEX mem 1 problems.
Found the resetting problem. At one
point [I0?] DL light was on. Much
resetting and putting scope probes on
I0 ADRS ACK and I0 ST SYS cured
it.

AMP 1 was dropping bits with
NA = 3xxxx5 sometimes bit 17 would
not drop. eventually found that [locations?]
of the form [?] xxx5 worked.

eventually found that moving
module in stack F P6 moved bug
subsequently Ohmeter tests by R Sounders
show that the input for selects is
a [shorf?]. other input is a diode.

Lift card out of stack F & left
stack F extended. Magnetics modules
give battle scars too. The connectors
hurt.

SRR

1430 1 Feb 68

Core 0 not AW RQ. DP may have
been running, CP was running.

RESTART, P3 LAST

SRR

1530 1 FEB 68

CORE 0 NOT AW RQ AGAIN.
P2 LAST, RD, WR, SYNC, P2 ACT.
[W?] R. WALLER LOSES!!

D.M.P