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  1. P

    Looking for Jerrold/General Instrument documentation and software

    @Hinoserm Possibly - I was talking to someone who had one. Sadly I think they need a later version of the ACC-4000 software than I have, but they seem to be fairly standard 68k processor boards with Ethernet and a decent amount of RAM, so perhaps something could be done with them. Whereabouts...
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    SCSI Utilities/Tool Kit

    If you're using a 154x series, that's a Narrow SCSI controller, so it has no idea about that either. Wide SCSI devices will need to be put into narrow mode (if they support it) to work with a 1540. Because of the way SCSI addressing works, only Wide SCSI devices can have SCSI IDs above 7...
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    SCSI Utilities/Tool Kit

    Quite possibly! I'm the same - the Adaptec PCI card in the cable headend has it, and I find it tricky to do without it. You can't beat the convenience of firing it up from ROM without even needing a bootdisk. My AVA-2906 PCI doesn't have it (no boot ROM), and my AHA-1540B ISA card has a boot...
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    SCSI Utilities/Tool Kit

    Acorn Fileservers use a hidden vendor-specific modepage containing the text "(C)ACORN" - I expect Apple may have done similar. That sounds like Adaptec's SCSISelect, which is in ROM on the 2940 PCI controller. It's used to configure the controller but can also do some basic diagnostics (device...
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    Thoughts on VCF East so far

    Glad you're enjoying yourself! It seems like people are having a good time - I have a couple of friends out there who have been sending photos. I wish I was out there, it looks like a good time! I'll be looking out for the panel recordings when they land on Youtube. That Stylistic tablet is...
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    Jason Scott's VCF Donation

    I'm not sure I'd recommend that, given @amichlin's experience and my own. Hopefully someone can get through to him. I've had the same experience, sadly. I've no involvement but tried to suggest to Jason in a semi-private venue (Discord) that it might be an idea to step back and take stock...
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    Looking for Jerrold/General Instrument documentation and software

    I've done some more digging ... There's an ACC-4000 manual on Sega Retro which lists several newer models: ACC-4000/PL Model 5500 - a Compaq Proliant 5500. ACC-4000/PL Model 800 - a Compaq Proliant 800 ACC-4000/HX Model 6200 - Digital Prioris HX 6200 Here are some hints for identifying an...
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    Looking for Jerrold/General Instrument documentation and software

    Good news! I got the ANIC working. It turned out to be battery leakage - there's a buffer chip next to the CMOS battery. When the battery leaked, it took out four tracks under the chip ... the buffer was for the RAM address pins. I fixed the tracks and put it back in the PC I built to run the...
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    Torch Triple X c1985.

    I'd ditch the ATX power supply and switch to a lab power supply, if you have one. Disconnect all the boards and accessories from power and start with just the main processor board. If there are any parts which require multiple power rails and might get upset (old DRAMs like 4116es) - remove...
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    Unknown east German chips - high resolution die shots - is anyone able to identify?

    Those are some nice die shots! The AMX14 looks like some kind of test device. There are some tracks going from bond pads on one side of the chip to the other, which I guess would be useful for measuring metal layer resistance. That said, it looks like the silicon is doped underneath - so they...
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    Microvitec Cub 653 Monitor (Type 1456 Li2) - Pinout

    It looks like you have the Microvitec variant which was intended for use with their Apple II video card. The colour palette you have looks very similar to the colours that can produce. See this post: https://stardot.org.uk/forums/viewtopic.php?p=412755 For CGA you need to program a different...
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    Looking for Jerrold/General Instrument documentation and software

    What an odd thing! Had a dig around and found some old posts on classiccmp about it. Apparently under one of those labels is the text "Corollary Inc". Digging for more on them turned up a few things: https://www.1000bit.it/ad/bro/brochures.asp?id=631...
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    Looking for Jerrold/General Instrument documentation and software

    Digging deeper, I found a Year 2000 declaration which identifies it. It seems like it's an early ACC-4000 (called an ACC-4000/XP): http://web.archive.org/web/20010108065700/http://gicout60.gic.gi.com/year2k/html/product_compliance/ANS_plans.htm By the software notes, it could have been updated...
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    Looking for Jerrold/General Instrument documentation and software

    I was never expecting to see that ...! I think you have one of the ACC access controllers - an early one. Possibly an ACC-2000 or 3000, but it's hard to tell without booting it up (and knowing the passwords) The ANIC is an "Asynchronous Network Interface Controller". It connects the PC to the...
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    Looking for Jerrold/General Instrument documentation and software

    I've spoken to the seller - they're unwilling to move on price. I asked about getting a Xerox of the manual and they asked for $400. I'm not surprised the ACC stuff was recycled years ago. I'm really just hoping someone has a software disk lying around somewhere. I found a photo of what looks...
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    Looking for Jerrold/General Instrument documentation and software

    Thanks Sophia... that was the point of this post. I'm hoping that someone who worked at Jerrold or with some Jerrold equipment stashed away comes across it and gets in contact with me to help fill in the gaps in what I've figured out (which is mostly on my website, https://www.philpem.me.uk )
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    Looking for Jerrold/General Instrument documentation and software

    Hi all, I'm looking for any software, manuals, photos of hardware - anything really - that relates to the Jerrold Communications / General Instrument analog cable TV headend equipment. (this is on topic, I promise!) Many of their headend "addressable controllers" were built around DEC hardware...
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    Looking for Oregon/Taumetric M68000 Pascal cross compiler and assemblers

    Hi all, Does anyone happen to have a copy of these squirrelled away? - Oregon Pascal M68000 -- cross compiler for VAX (or any other host platform). Probably called "P68.EXE" or something similar. - Oregon / Taumetric M68000 Cross Assembler for VAX (or any other). Probably called "MASM.EXE"...
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    Maxtor LXT/MXT drives - technical info, firmware, service serial port?

    Does anyone happen to have the following document squirrelled away? MAXTOR LXT-200A TECHNICAL MANUAL 1019707 MAXTOR MXT-1240S OEM TECHNICAL MANUAL 1028044 ... Or any other technical data on the Maxtor LXT or MXT series hard drives. I'm especially looking for any service data, or any...
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    Shugart SA405R drive - no head stepping. Service manual?

    Hi all, I'm trying to fix a Shugart SA405R full-height 5.25in drive. Failure symptoms are that the drive selects and the main motor runs, but the drive will not seek. I've already replaced the ULN2803 with no change to the symptoms (the new ULN2803 now gets a little warm). The head stepper...
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