Re: VAX ODT console fault
On 06/12/2019 03:41 AM, r.stricklin via cctalk wrote: If I install a spare KA630-A and 8 MB memory board, I get a similar fault where chevrons repeat to infinity. There are a couple possibilities. If the baud rate is set wrong, the VAX could be replying to some gibberish at wrong baud rate, that causes the terminal to reply to that with something, and they endlessly jabber at each other. Most terminals will send Xoff/Xon when a rapid burst of characters comes into the Rx port. When misinterpreted by the VAX, that might cause it to send another burst of characters. So, it could be entirely a software/setup issue. Are you using a real terminal or a PC terminal program? If a program, you might try a different one or try different comm settings. As someone else mentioned, a leaking battery could have damaged traces or the baud selector switch on the panel interface module. Close inspection of that is strongly advised. Jon
Re: VAX ODT console fault
On Wed, Jun 12, 2019, 5:13 AM r.stricklin via cctalk wrote: > > On Jun 12, 2019, at 1:25 AM, r.stricklin wrote: > > > I have a BA23 VAX of unknown provenance, which tonight I moved from the > project backlog to the workbench. It comes up and passes selftest. But any > key I press on the console terminal is repeated a couple dozen times (to > the limit of the input line length?). This makes it impossible to interact > with ODT. > > If I install a spare KA630-A and 8 MB memory board, I get a similar fault > where chevrons repeat to infinity. This seems to suggest it's a fault > between the CPU and my terminal. Can this be the result of a bulkhead or > other cable problem? > > KA630-A.V1.3 > > Performing normal system tests. > > 7..6..5..4..3.. > > Tests completed. > > > Loading system software. > > 2.. > ?40 NOSUCHDEV > ?06 HLT INST > PC = 0EE6 > Failure. > >>> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > (etc.) > > > > ok > bear. > > -- > until further notice > Is the NVRAM battery still in place in the console bulkhead panel? Those always go bad and leak over time. Even it was removed some time ago my first guess would be battery corrosion on the bulkhead panel is causing the problem if it happens with multiple CPU boards.
Re: VAX ODT console fault
On Jun 12, 2019, at 1:25 AM, r.stricklin wrote: > I have a BA23 VAX of unknown provenance, which tonight I moved from the > project backlog to the workbench. It comes up and passes selftest. But any > key I press on the console terminal is repeated a couple dozen times (to the > limit of the input line length?). This makes it impossible to interact with > ODT. If I install a spare KA630-A and 8 MB memory board, I get a similar fault where chevrons repeat to infinity. This seems to suggest it's a fault between the CPU and my terminal. Can this be the result of a bulkhead or other cable problem? KA630-A.V1.3 Performing normal system tests. 7..6..5..4..3.. Tests completed. Loading system software. 2.. ?40 NOSUCHDEV ?06 HLT INST PC = 0EE6 Failure. >>> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >>> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > (etc.) ok bear. -- until further notice
VAX ODT console fault
Folks; I have a BA23 VAX of unknown provenance, which tonight I moved from the project backlog to the workbench. It comes up and passes selftest. But any key I press on the console terminal is repeated a couple dozen times (to the limit of the input line length?). This makes it impossible to interact with ODT. Is this a normal sort of well-understood failure mode? In this session excerpt, the only thing I am sending is (giving me the normal chevron prompt), (giving me the repeated chevrons, sometimes with other characters in the pattern), ?, and h. I did not type any colons at the [XQA0] prompt, though I did try to backspace them. The behavior is the same if I remove all boards besides the KA655-B and 16 MB memory board. KA655-B V5.3, VMB 2.7 Performing normal system tests. 40..39..38..37..36..35..34..33..32..31..30..29..28..27..26..25.. 24..23..22..21..20..19..18..17..16..15..14..13..12..11..10..09.. 08..07..06..05..04..03.. Tests completed. Loading system software. No default boot device has been specified. Available devices. -DUA0 (RA81) -DUA1 (RA81) -XQA0 (08-00-2B-19-A2-D7) -XQB0 (08-00-2B-0D-83-C0) Device? [XQA0]: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : \ \\ ?26 VAL TOO LRG Device? [XQA0]: (BOOT/R5:0 XQA0) 2.. -XQA0 ?4B CTRLERR, XQA0 ?06 HLT INST PC = 0C1A Failure. >>>A0 ?22 ILL CMD >AAAAAAAAAAAAAAAA>>^C >>> ?22 ILL CMD >>> >>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>> ?22 ILL CMD >>> >>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>> ?22 ILL CMD >>> >>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>^C >>> >>> >> ?22 ILL CMD >>> >>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>^C >>> ?22 ILL CMD >>> >>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>?2>>>\>\\^C >>> >>> >> ?22 ILL CMD >>> ok bear. -- until further notice
