March 2022 - TechToolsList - listserv.classicarcade.com

Fluke 9110FT SPECTRUM-TX diskettes imaged
by Martin Olsson 10 May '23

10 May '23

Hi all! I bought a Fluke 9110FT setup and with that setup came the SPECTRUM-TX diskettes which I now have imaged and uploaded to the "/TTL/Test_Equipment/Fluke/9100 Series" folder on John's FTP site. Inside the ZIP archive is a ReadMe with more details about the images etc. I haven't tested the images myself but I think they should probably work as the original diskettes was error free. Enjoy! /Martin! _______________________________________________ Techtoolslist mailing list Techtoolslist(a)flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/

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ftp site is down...
by John Robertson 23 Dec '22

23 Dec '22

Does anyone know Tim Matthews (in the UK) and can ask him if he is aware his web site arcadetech.org is down? He is hosting the TTL library (I have a complete archive of course) and I noticed it was down when I tried to upload some files yesterday. I sent him an email but did not hear back. The domain is listed as active until 2020 so it must be a server thing... Thanks! John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist(a)flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/

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Fluke 9010 and Gorf / Wizard of War etc.
by davids＠oz.net 28 Mar '22

28 Mar '22

Working on a stack of these boards. There is no watch dog disable but it is an easy enough thing to do by removing Q10 (the WD then can't toggle reset). With the Fluke connected I can run UUT and game will run fine I can test the Video Dram from 0x4000-0x7FFF no problem. I can test the cpu SRam from 0xD080-0xDFFF no problem. The cpu SRam from 0xD000-0xD07F though give a data error when trying to write to it. >From the mame memory map it shows that ram 0xD000-0xD03F is protected_ram (I think this is a typo because it is blocked for me to 7F). Looking though the tech tools list history I saw mention from Kev in 2004 that there is a section of the ram that has a latch attached to reset. I think that is the protected ram mentioned in the memory map. The map also says address 0xA55B controls the protection. Looking at the gorf schematic page 63 (the rom/ram board) I can see the latch Kev mentioned. U9:11 (74LS74) controls the chip select for X21 / X22. And this is tied to reset so would clear if the WD were to kick (but I have disabled it) This is in turn fed by U10:9 (74LS133) which takes in a bunch of address / control lines and's them and inverts. So if anything isn't set it will output false. One of those intputs (pin 4) is from U16:13 a MC14078 (8 input NOR). Ensuring that a bunch of other things are not set which gives us a enable latch of A55B. Problem I am having is one of the inputs to U16 is pin 5 which it IORQ!. When I try to write to A55B with fluke to latch that the memory protect, IORQ! Is always high. So U16:13 is low, which make U10 fail the and. I verified IORQ! Is working (I can run the UUT) and see it toggle. Reading the spec's on the Z80 control signals I think that should be pulled low whenever the CPU is doing a write. But it's not when doing so from the fluke. I could jumper U10:4 to ground in some manner but would rather understand what is happening. Ideas? Thanks, David _______________________________________________ Techtoolslist mailing list Techtoolslist(a)flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/

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Re: [Techtoolslist] 9100FT RTC
by Kevit Desai 18 Mar '22

18 Mar '22

Thanks William, yes i think the reason the 9100FT does not boot from the existing hard disk could be because of a disk IO issue, i also find it strange that until I don’t remove the MIF/ SCSI card the system does not boot up. I am unable to boot the system with F2,F4 and soft key with the SCSI card connected to the system. When I remove the SCSI card, and initiate a boot using F2,F4 and soft key i am able to access service disk, and under normal startup the system ask me to insert system disk, once all is loaded the system hangs. Thanks Tony, I did enable reporting of IO errors but observed no change or errors reported, I am not sure what to expect. I did the following: Remove SCSI card Boot service floopy ,enable IO reporting Boot from the 3 system floppies No it does not boot into normal operation instead hangs with no access to the keys I am looking into the SCSI2SD option, but not quite sure as to why the system hangs and the system being unable to progress with SCSI card in, only to display : real time clock not initialized. Many thanks to all your advice, i very much appreciate. -- Regards, Kevit Desai Tel: Mobile: +254 722 517067 _______________________________________________ Techtoolslist mailing list Techtoolslist(a)flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/

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Re: [Techtoolslist] 9100FT RTC
by Kevit Desai 17 Mar '22

17 Mar '22

Thanks Tony, the system was in storage for five years, prior to storage it was fully functional. Recently I started the Fluke 9100FT and received the following message:please replace battrey in real time clock. The system failed to go beyond this message with no further function of keys or drives, and nor the slightest inclination to boot from the floppy drive, when I pressed:soft key,F2 &F4. When I removed the SCSI card and started the system, it asked me for the system disk, once all programs were loaded ,once again it would go into an unresponsive state. I tried the service disks not knowing the credibility of the download, trying to access the time function, once again some functions were working some not. Many thanks for your help. -- Regards, Kevit Desai Tel: Mobile: +254 722 517067 _______________________________________________ Techtoolslist mailing list Techtoolslist(a)flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/

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9100FT RTC
by Kevit Desai 16 Mar '22

16 Mar '22

Yes the Dallas chip is on the SCSI card. I tried an external battery hack as well as a replacement / equivalent -Dallas 12887, the message : real time clock not initialized is the same in both cases, and I am unable to manually reset or enter information. I am unable to access the hard drive, and therefore unable to boot. On the first quarter of 2018 Ian Eure, encountered an RTC issue TECHTOOL list :DS1287 repair Tony i recall you had also mentioned and shared a post on an RTC issue…I can’t seem to find it any more. None of these posts may have captured my issue in entirety. With regards to the NVRAM issue: I wanted to enquire whether the NVRAM U36 and U26 EPROM are up to date? I have version 1 in both cases and so I shared Information on the same in my previous post. I would also inquire if the is a relation to the problem I am facing. As always I appreciate any support. -- Regards, Kevit Desai Tel: Mobile: +254 722 517067 _______________________________________________ Techtoolslist mailing list Techtoolslist(a)flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/

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9100 FT RTC
by Kevit Desai 16 Mar '22

16 Mar '22

The RTC battery failed on my 9100FT, upon replacement , i get the following error: real time clock not initialized. I am unable to access keys or the disk and floppy drive. I am aware that such problems have been posted in the past. I would very much appreciate to know how to recover the boot process. And the steps to taken.. many thanks, and I look forward to hearing from you and being part of the community. -- Regards, Kevit Desai Tel: Mobile: +254 722 517067 _______________________________________________ Techtoolslist mailing list Techtoolslist(a)flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/

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