Author Topic: Denver Duck...Com Link Failure (Read 10949 times)

jake511511 · « **on:** June 23, 2020, 01:35:45 PM »

Need help Denver Duck....Error.....COM Link Failure

qbert · « **Reply #1 on:** June 23, 2020, 03:49:20 PM »

What does the top box show when it boots up?

jake511511 · « **Reply #2 on:** June 23, 2020, 05:07:17 PM »

Com Link Failure

qbert · « **Reply #3 on:** June 23, 2020, 05:29:28 PM »

When you first turn it on what does the top box show?
What does the VFD say? Does it say waiting for video display?
Com link failure probably comes on 7 or eight minutes into the boot cycle.

jake511511 · « **Reply #4 on:** June 23, 2020, 05:38:21 PM »

It shows it booting up...and waiting for the video display

qbert · « **Reply #5 on:** June 23, 2020, 05:41:54 PM »

OK great that means the lower unit and MPU is good.
Does the top box ever show anything?

jake511511 · « **Reply #6 on:** June 23, 2020, 05:43:22 PM »

The wheels are spinning and it says on top box COM Link Failure.....and on the bottom video display com failure

qbert · « **Reply #7 on:** June 23, 2020, 05:45:54 PM »

Way before the wheels spin what does the top box show? A red white and blue finger or a green and yellow energy star symbol? Or is it completely dead?

jake511511 · « **Reply #8 on:** June 23, 2020, 06:10:34 PM »

this is what its showing

qbert · « **Reply #9 on:** June 23, 2020, 07:00:05 PM »

OK the top box and the hard drive appear to be in order.
So it is a com failure between the top and bottom box.
I have a few more questions.
After that screen says checking for valid crcs. It should say initializing please wait this is immediately followed by the VFD display saying MS verify app. Then followed by the top box saying starting ATA application software.
This is the handshake between the top and bottom box that must occur.
I need to know if any of this is happening?

Did this just happen one day when you turned it on?
Did you move the machine? Anything that you can tell me will help.

The laneman · « **Reply #10 on:** June 23, 2020, 07:14:03 PM »

I was there when it happened also.The machine was up and running.I plugged another machine in the same power strip.When I did that both machines shut down.Denver Duck was working fine before that happened.
I know it got to the MS verify app point

jake511511 · « **Reply #11 on:** June 23, 2020, 07:35:29 PM »

Ms verify app was as far as it got

qbert · « **Reply #12 on:** June 23, 2020, 09:48:16 PM »

OK
1) Start by reseating the plug on the back of the top box with the 5 grey wires going to it.
2) In the lower cabinet, reseat the plug with the 5 gray wires going to the power distribution box (the box behind the coin hopper)
3) Reseat the ribbon cable going from the power distribution box to the backplane board on both ends.
The next three are a toss up on which to do first.
My suggestion as follows:
1)Replace the small board in the power distribution box where the ribbon cable plugs in.
2) Replace the backplane board.
3) Replace the MPU.

Let me know how it turns out.
Rich

The laneman · « **Reply #13 on:** June 24, 2020, 04:44:58 AM »

Great suggestions.
He has a rwb 3 reel s2000.Could he swap the whole power distribution box and see if the problem moves?
Having the two s2000 machines he can swap parts till he can get the problem to move or it corrects his problem.
To Jake...If you swap them take a picture of the connections on both boxes to be sure you have all the connections hooked up.

qbert · « **Reply #14 on:** June 24, 2020, 04:58:21 AM »

Yes and the rwb would even probably still work after the swap. Probably easier to just swap the small board.

Something is still bothering me because it does seem like top and bottom are talking.
Can you confirm if the top box says starting ATA software after VFD says ms verify.....
This would happen right before the wheels spin.
One more thing verify that nothing changes by lifting and lowering the door switch. If the above is all happening it will probably be the backplane or mpu

Dirtguy · « **Reply #15 on:** June 24, 2020, 06:25:38 PM »

When you get it up & running, please let us know what the fix was. Thanks

jake511511 · « **Reply #16 on:** June 24, 2020, 07:45:01 PM »

yes it says starting software

jake511511 · « **Reply #17 on:** June 24, 2020, 08:12:28 PM »

I tried everything .......Does anyone think its the backplane.......or the Mpu......thats gone out...thanks

qbert · « **Reply #18 on:** June 24, 2020, 08:57:50 PM »

Please list exactly what "everything" is that you tried.
If you have spare door I/O cards you can try them first since they are cheap and easy( also susceptible to power surge)
Or like I posted above backplane or MPU.
Does anything display on the panel leds after the reels spin?
We are getting into netplex devices now. Try unplugging printer and BV (only when power is off)

jake511511 · « **Reply #19 on:** June 24, 2020, 09:59:36 PM »

Now this is on the top screen

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Author Topic: Denver Duck...Com Link Failure (Read 10949 times)