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  • lsi11al's Avatar
    June 6th, 2018, 05:19 AM
    lsi11al replied to a thread Need help with 11/23 system in DEC
    Looked at what was involved in getting to the terminating resistors from the backplane. Wow, that is a hassle!! I did get PDP11gui running and even...
    11 replies | 491 view(s)
  • lsi11al's Avatar
    June 5th, 2018, 05:16 AM
    lsi11al replied to a thread Need help with 11/23 system in DEC
    Thank you for additional answers. I will have to take time to digest this information. PG31-Yes I checked those things out. cbscpe-I do have both...
    11 replies | 491 view(s)
  • lsi11al's Avatar
    June 4th, 2018, 12:45 PM
    lsi11al replied to a thread Need help with 11/23 system in DEC
    As mentioned above, system is in a Microvax II box, BA23. Backplane is H9278 and power supply is H7864. I did try the 3.5 inch drive again, this time...
    11 replies | 491 view(s)
  • lsi11al's Avatar
    June 3rd, 2018, 03:30 PM
    lsi11al replied to a thread Need help with 11/23 system in DEC
    Removing the RQDX board didn't change anything. Results were variable as ever. I did make sure that the boards are firmly in place. I should...
    11 replies | 491 view(s)
  • lsi11al's Avatar
    June 2nd, 2018, 07:25 AM
    System consists of LSI 11/23 (M8186), MSV11 (M8059KF), DLV11-J (M8043), RQDX3AA (M7555), and BDV11. These are in what was a MicroVAX II box. Thanks...
    11 replies | 491 view(s)
  • lsi11al's Avatar
    May 27th, 2018, 10:20 AM
    Turns out the answer was in getting the jumpers right. In any case my so called "blank" 2716s are not blank. Now awaiting an eprom eraser. Hopefully...
    20 replies | 1339 view(s)
  • lsi11al's Avatar
    May 27th, 2018, 06:11 AM
    Looking forward to what you find Larry!! -Al
    20 replies | 1339 view(s)
  • lsi11al's Avatar
    May 26th, 2018, 07:50 AM
    With the Willem PCB6.0 when a 2716 or 2732 is selected there is a PCB3 in parenthesis after the eprom number. It is not there for a 2764. If I read...
    20 replies | 1339 view(s)
  • lsi11al's Avatar
    May 25th, 2018, 12:48 PM
    Larry, Yes I am running version 6.0. The answer might be in the jumpers as the figure provided and what appears on the board don't really match up...
    20 replies | 1339 view(s)
  • lsi11al's Avatar
    May 25th, 2018, 10:41 AM
    After some trials and tribulations I got the Willem Programmer hooked up to the parallel port of a computer. I then placed a 2716 (supposedly blank)...
    20 replies | 1339 view(s)
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About lsi11al

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About lsi11al
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Hebron, KY

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