Author Topic: Need help finding out what this machine is.. (Read 3072 times)

drfreeze1739 · « **Reply #20 on:** September 29, 2024, 02:52:50 PM »

Ok. Thank you RB

lookes · « **Reply #21 on:** September 29, 2024, 04:08:23 PM »

The SENET driver is U71 on these boards. See if it has any burn marks or blisters etc. I agree with TILT. Get a 3902 and a multimedia mezzanine card that supports DIP sound chips

drfreeze1739 · « **Reply #22 on:** September 29, 2024, 04:23:57 PM »

Ok. I will look and see if I can find a board.
Here is a pic of the u71 chip.
It looks good

lookes · « **Reply #23 on:** September 29, 2024, 04:34:18 PM »

That is the SENET driver and it does look OK.

drfreeze1739 · « **Reply #24 on:** September 29, 2024, 04:37:01 PM »

So I wonder why I can't clear these errors. If I buy another board and it don't clear then I'm back to square one.

Tilt · « **Reply #25 on:** September 29, 2024, 10:49:33 PM »

True. But you can't isolate it further without replacing something, that's why the errors are there. The MPU is the cheapest one to replace and a 3902 is an upgrade if it doesn't fix the problem. The I/O cards on the old machines aren't real easy to find these days.

drfreeze1739 · « **Reply #26 on:** September 30, 2024, 05:34:29 AM »

The cheapest I could find for the 3902 bord is 100 untested.
I put a add up in the wanted classifieds on here. Will see what I can find.
Thank you.

Tilt · « **Reply #27 on:** September 30, 2024, 12:10:18 PM »

Contact Jim at Midwest slots. His number is on the home screen.

drfreeze1739 · « **Reply #28 on:** October 02, 2024, 08:25:22 PM »

Ok. I have a board coming.
Should be here this weekend.
Will update when installed.

drfreeze1739 · « **Reply #29 on:** October 04, 2024, 06:24:49 PM »

Well switching out boards didn't do nothing different. Same errors. Tried clearing. And they came back to the same thing.

Tilt · « **Reply #30 on:** October 04, 2024, 06:29:29 PM »

Damn. Probably one of the IO boards is bad or maybe a cable disconnected? The I/O cards aren't real easy to find for the older machines. Not sure if Lookes is equipped to repair them or not, but might ask.

drfreeze1739 · « **Reply #31 on:** October 04, 2024, 06:32:35 PM »

I pulled the i/o box out.
Nothing is unplugged in it.
The boards look clean.

Tilt · « **Reply #32 on:** October 04, 2024, 06:46:31 PM »

There's also connectors on the front and top of the of the frame at the back. Front would have been obvious.

drfreeze1739 · « **Reply #33 on:** October 04, 2024, 07:26:24 PM »

Yes the cables inside the i/o box go to a plug that plugs in to the mother board

Tilt · « **Reply #34 on:** October 04, 2024, 08:29:32 PM »

Check with Lookes. If he doesn't have the equipment to test them for you I'll do it free. Not sure if I'd be able to repair it, but should be able to get it down to a specific board. There's two of them in the tray.

drfreeze1739 · « **Reply #35 on:** October 04, 2024, 08:34:13 PM »

Pic of the i/o tray

lookes · « **Reply #36 on:** October 05, 2024, 07:04:15 AM »

I'm sure I could repair it if I had a way to test it. Generally on the small, more common I/O cards used in S2000's and 17" Game Kings etc, when they fail, there is a burned component or IC that makes it pretty easy to find. Do you see or smell anything burned on one of the boards in your I/O tray?

Also, there is a third possible cause and that is the backplane in the cabinet.

Maybe take up Tilt's offer to test your tray and go from there.

drfreeze1739 · « **Reply #37 on:** October 05, 2024, 07:27:04 AM »

I have reset many of times.
I even reset all the plugs inside it on all the boards.
Still nothing.
Far as I can see there is no burn compnets in it. Don't smell nothing burnt. I posted a pic of the boards above.

qbert · « **Reply #38 on:** October 05, 2024, 02:45:42 PM »

Just a thought, you did confirm that there are no bent or broken pins where the mpu and the I/O board plug in.

drfreeze1739 · « **Reply #39 on:** October 05, 2024, 03:04:31 PM »

Yes I pulled it all and looked for broken and bent pins on all the plugs.

News:

NLG Site Navigation Menu

Author Topic: Need help finding out what this machine is.. (Read 3072 times)