Thanks for the quick reply, I have got a manual but I've been reading the pdf. The parts list shows R3 as a 1K resistor and the schematic shows a 4.7k. I have checked the cables with a meter but I will try swapping the fluke to pod cable, I didn't realize these were the same on all pods. Cheers Paul. On Tuesday, 11 August 2015, 18:04, John Robertson <jrr@flippers.com> wrote: On 08/11/2015 9:27 AM, Paul Hogger wrote:
Hi everyone,I've got an 8080 pod it came with my Fluke 9010a that has never worked, it usually passes self test but some times reports fail 00 depending on what sort of mood it is in. :) I've had it in bits and tested both cables and all the socketed chips (apart from the 6532A which I've ordered). As soon as I try to do any ram, rom tests etc it just says pod timed out. I think the problem is a missing resistor (R3) on the top board, can anyone that has fixed or has one of these please confirm if R3 is meant to be populated? It's missing from my board but looks like it was installed at some point. I have taken some pictures as there's a few mods that have been done and hopefully someone can confirm if these are factory mods or not. http://i1148.photobucket.com/albums/o579/games2replay/8080%20Pod/1_zpswul3ju... is the bottom of the bottom pcb, as you can see there's an added diode and a hole in the pcb next to it. http://i1148.photobucket.com/albums/o579/games2replay/8080%20Pod/2_zpsvhryeb... is the missing R3 resistor on the top pcb. http://i1148.photobucket.com/albums/o579/games2replay/8080%20Pod/3_zpsu4nuvz... finally the bottom of the top board has a resistor and jumper added. I think the mods are mostly likely original but I do think R3 needs replacing, before I replace it if someone could please confirm this next time they have a 8080 pod on the bench I'd really appreciate it. Cheers Paul.
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Hi Paul, Have you a copy of the pod manual? It should show if there is a resistor there or not. Check the archives above for the manual. There are also some addendum sheets that are with the PDFs for any pod manual which you may not have so it is usually a good idea to compare your copy with the PDF. Timeouts - you can use the schematic of the pod to trace the Clock and Control signals into the pod and use a logic probe, 'scope, or digital multimeter to get an idea if the signals are making it. Of course the cable to the 9010A could be the problem, if you have another pod then simply exchange that cable - the cables to the UUT are different though. I have a list of those cables on my fluke page here: http://www.flippers.com/fluke.html John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist@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/