52

48

Traded 6 with 7.

Bit 6 (2DE 11) was microphonic. Traded
it with Bit 7 (2DE 12). Machine worked.

Ran margins up and down
Banged on boards, etc. bugs didn't return.

Found that wiping core 3 IF 4 & 5
boards hard caused bits 3 & 5 to be
dropped when running disk & having
CP ok split cycles. Couldn't make it
go away. Checked sockets, changed
cards, pinched connectors. no trouble
found trouble not there. Probably
not related to "533 bug".
Machine back at 0030
SRR

26 Jan
Type 30 goes away randomly when running it. It
will come back again when reinitalized.
Can't tell if Hardware or software.
Pinole

12:00 1/26/67
Dth Drives 6 and 7 now have guides with
no anodizing on the surface. After instalation
ran DECTAPE Test with a static tape. No Errors.
Fred Parot
Ted [Pool?]