SC1041_SAIL_PDP-6_hardware_log_1968-01

Traded 6 with 7

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

Run margins up and down Banged on boards, etc. bugs didn't Found that wiping core 3 if 485 boards hard caused bits 3 & 4 to be c p ok split cycles. Couldn't make it go away, Checked sockets, changed cards, pinched connectors, no trouble formed troubles not there, Probably not related to " 033 bug " not related to " 033 bug ". [SRP] 26 Jan . Type 30 goes away randomly when viewing it. [--?] will come back again when [reinitalized?]. can't tell if Hardwood or softwood [Pingle?]

12 00 1/26/67 [D+H?] Drives 6 and 7 now have guides with no avoiding on the surface. After instalation ran Dectape Test with a static tape. No [Erross]

Fred Pa------?]

CORE PARITY ERROR, LOCATION 000000263063 OPND = 013160103067 PO = 750000163061 INSTR = 246040777773 DATE = 000641152374

CORE PARITY ERROR, LOCATION 000000264113 OPND = 112577104104 PC = 75000163061 INSTR = 246040777773 DATE = 000641152375 TIME = 1156:35

CORE PARITY ERROR, LOCATION 000000264763 OPND = 10506114767 PO = 750000163061 INSTR = 246040777773 DATE = 000641152375 TIME = 1157:17

CORE PARITY ERROR? ERROR IN JOB 1 ADDRESS CHECK FOR DEVICE DTA3; UUO AT USER 111 ^ C

(Pg.58) 48

Traded 6 with 7.

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

Run margins up and down Banged on board, etc. bugs didn't return.

Found that wiping core 3 if 4 & 5 boards hard caused Arts 3-4 to be dropped when running disk & having C P do split cycles. Couldn't make it go away. Checked sockets, changed cards, pinched connectors. no trouble found trouble not there. Probably not related to " 033 bug ". machine back at 0030 SRP 26 Jan.

Type 30 goes away randomly when running it. [--?] will come back again when [reinitaslized?] can't tell if hardwere is softwere Pinole 12:00 1/26/67 [D + h ?] Drives 6 and 7 now have guides with

no anodizing on the surface. After instalation

ran DECTAPE Test with a static tape. No Errors.

[Ted Pa------?]

CORE PARITY ERROR, LOCATION 000000262113 OPND = 013777102116 PC = 750000163061 INSTR = 246040777773 DATE = 000641152372 TIME = 1154:30

CORE PARITY ERROR, LOCATION 000000262043 OPND = 014362102044 PC = 750000163061 INSTR = 246040777773 DATE = 000641152373 TIME = 1154:51

CORE PARITY ERROR, LOCATION 000000262643 OPND = 013160102644 PC = 750000163061 INSTR = 246040777773 DATE = 000641152373 TIME = 1155:12

CORE PARITY ERROR, LOCATION 00000026773 OPND = 012173102772 PC = 750000163061 INSTR = 246040777773 DATE = 000641152374 TIME = 1155: 33

CORE PARITY ERROR, LOCATION 000000263043 OPND = 013167103047 PC = 750000163061 INSTR = 246040777773 DATE = 000641152374 TIME = 1155: 53

26 Jan 68 more of same

Turned off ampex core [1308?] [26?] Jan 68 [APR?]