TECH: Omega Race, Kruz-Kash, and the Fluke 9010A
I just thought I'd bore you folks with some experiences I had fixing up an Omega Race PCB... Pulled from stock, one very nice looking OR boardset-no corrosion at all battery was removed years ago, looked like an easy sale so pulled out the old KK test fixture and wired up my Hoie XY monitor. Dead. Disabled Watchdog, and pulled out Fluke and plugged into Z80 socket, hmmm, can't read any memory at all, yet Data Bus test is OK. Pulled 5101 and plugged into the 5101 test fixture (a Stern pinball MPU with zip sockets)-dead, ties data bus up. New 5101, still no reliable memory read, pulled out logic comparator, and found bad 7432 (-memw), now could read RAM. Lots of ram failures (turned out to be 5 bad 2114s), now couldn't read 2732s reliably, dig more with comparator, bad 74ls08, now can read some Eproms. Pulled 0h ROM, now could read all eproms. Hmm, check 0h Rom on programmer...Ok? Burn a new one, now all Rom checks out (anyone like Fluke sigs for Erpoms?). Repair Watchdog. Hook back up to XY, good picture, but Y pot does nothing, turns out the 10K resistor is open. Now it works....total time about five hours....sigh...never should start these old buggers some days. John :-#)# John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) http://www.flippers.com "Old pinballers never die, they just flip out." To UNSUBSCRIBE from techtoolslist, send a message with "UNSUBSCRIBE" in the message body to: techtoolslist-request@flippers.com. Please direct other questions, comments, or problems to jrr@flippers.com.
At 09:50 18/08/00 -0700, you wrote: can anyone please help me ith a problem i have getting a Univesal Cosmic Alien boardset to run on the FLUKE 9010a Allthough the boardset is working properly (it has a Z80 proc) when I replace the CPU with the Z80 pod and press the 'RUN UUT' Key I keep getting the error message:- ' UUT Power Fail Attempting Reset ' The pod passes the self test ok. so i have checked the power rails with a scope and they appear clean and the +5v is true. the CPU clock seems to be running at 2.7meghz. when I connect up a galaxian board using the same power Unit and the same fluke & pod it runs perfectly. I have another fluke and pod and if i use them i get the same results. Please stop me from going bald as i am pulling my hair out!!!! All help gratfully received thank you Pete (invadar)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) http://www.flippers.com "Old pinballers never die, they just flip out."
To UNSUBSCRIBE from techtoolslist, send a message with "UNSUBSCRIBE" in the message body to: techtoolslist-request@flippers.com. Please direct other questions, comments, or problems to jrr@flippers.com.
The FLuke checks the voltage at the CPU with a comparator in the pod, and if the UUT voltage is low it will show that error. You need to verify the socket for the CPU, perhaps a bad +5 or gnd pin...If you can adjust the 5VDC, try running it up a bit... John :-#)# At 06:11 PM 9/1/00, Peter Davies wrote:
At 09:50 18/08/00 -0700, you wrote: can anyone please help me ith a problem i have getting a Univesal Cosmic Alien boardset to run on the FLUKE 9010a
Allthough the boardset is working properly (it has a Z80 proc) when I replace the CPU with the Z80 pod and press the 'RUN UUT' Key I keep getting the error message:- ' UUT Power Fail Attempting Reset ' The pod passes the self test ok. so i have checked the power rails with a scope and they appear clean and the +5v is true. the CPU clock seems to be running at 2.7meghz.
when I connect up a galaxian board using the same power Unit and the same fluke & pod it runs perfectly.
I have another fluke and pod and if i use them i get the same results.
Please stop me from going bald as i am pulling my hair out!!!!
All help gratfully received
thank you Pete (invadar)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) http://www.flippers.com "Old pinballers never die, they just flip out."
To UNSUBSCRIBE from techtoolslist, send a message with "UNSUBSCRIBE" in the message body to: techtoolslist-request@flippers.com. Please direct other questions, comments, or problems to jrr@flippers.com.
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) http://www.flippers.com "Old pinballers never die, they just flip out." __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com
participants (3)
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John Robertson -
jrr＠flippers.com -
Peter Davies