[Techtoolslist] Fluke 9010a Troubleshooting w/ Omega Race

[Matt Rossiter]

Hmm.  I didn't think about the Z80 speed issue.  I'll have to try that.

By the way, since we're on the topic of fixing Omega Race - What do you 
normally do when you run across a bad 8216 Data Buffer?  Do you try to 
replace them with a 74LS245?  Fortunately, I haven't run across this 
problem yet, but I'm sure it'll come up.

Matt

On Mon, 22 Jan 2007, John Robertson wrote:


> At 12:36 AM -0800 1/22/07, Matt Rossiter wrote:

>> This might be more of a Vectorlist question, but I thought I might try

>> here.

>>

>> Right now I'm using a 100% working Omega Race boardset to make sure I have

>> the correct setup using the Fluke 9010a and Z80 Pod.

>>

>> First of all, the boardset just won't run with the Z80 Pod.  I can see

>> that the Reset line is pulsing.  It won't run if I disable the watchdog

>> circuit either.  *sometimes* I can get it to do a Quick Ram Test

>> successfully.  Other times I get data error messages and if I do a bus

>> test it will report a bunch of data lines tied together.  Of course, if I

>> put a normal z80 processor back in the game works perfectly fine.

>>

>> So, I'm just wondering if anyone out there knows how to properly setup an

>> Omega Race boardset for troubleshooting with the Fluke 9010a and Z80 pod.

>> This Pod should be working fine since I used it recently on a Pac-Man.

>>

>> thanks

>>

>> Matt

>

> This board requires a Z80A CPU, perhaps your Z80 pod CPU is too slow?

> Try installing a Z80A in the pod (I run a Z80B)...

>

> I do know that with pin 8 of RP4 cut and the board side tied high,

> that I can run the RAM, ROM and I/O tests successfully on an OR that

> is STILL on my bench. Flacky problems were caused by a bad ground

> connection to a buffer.

>

> John :-#)#

>

> -- 

> John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9

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

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