[Techtoolslist] Interesting stuff on eBay...

[John Robertson]

On 06/12/2013 4:25 PM, Alan McCormick wrote:

> I have a Z80 Fluke 90 and someplace I have the manual. IIRC the manual 

> seemed to infer that there were similar versions for other MPUs 

> although I've never seen another 90 of any sort. It does have a 

> built-in serial port which I used to do memory dumps of some protected 

> games. Picked mine up for $20 at a hamfest years ago.

>

> The auction comments about it needing a power supply are misleading. 

> It leeches off the UUT but iirc there was an external PSU that could 

> be used if the UUT couldn't handle the extra current.

>

> Never opened mine up. Don't think my manual had schematics.


I never saw any schematics for this device, other than what I made up to 
convert another one I had to Z80.

These can work well as long as the board designer followed the Z80 
manufacturers specs and used pull-up resistors on Bus Request and a few 
others.

There are at least four CPUs covered in the series, Z80, 8085, 6809 and 
another...and it is interesting to watch the device in action, testing 
RAM while the game is running in attract mode is quite amusing! However 
I must confess these all sit on the shelf as giant dust bunnies as I use 
the 9010 instead on the few game boards I still service.

However for field work they would be great, so (quick poll) how many of 
us fix 8-bit CPU based devices in the field??

John :-#)#

> ------------------------------------------------------------------------

> *From:* John Robertson <jrr at flippers.com>

> *To:* "techtoolslist at flippers.com" <techtoolslist at flippers.com>

> *Sent:* Wednesday, June 12, 2013 2:53 PM

> *Subject:* [Techtoolslist] Interesting stuff on eBay...

>

> Fluke 90 series Z80 on-board tester (I have one so am not bidding):

>

> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=310687268151&ssPageName=ADME:B:SS:US:1123

>

> Also a bunch of Kurz-Kash adapter cards (I already have all those so 

> am not bidding on any):

>

> http://www.ebay.com/sch/i.html?_odkw=Kasch&_osacat=0&_from=R40&_trksid=m570.l1313&_nkw=Kurz+Kasch&_sacat=0

>

>

> John :-#)#

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>



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Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
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