(Topic ID: 156414)

Rottendog MPU327 issue


By Arcade

4 years ago



Topic Stats

  • 6 posts
  • 2 Pinsiders participating
  • Latest reply 4 years ago by PinballManiac40
  • Topic is favorited by 2 Pinsiders

You

Linked Games

Topic Gallery

One image has been uploaded to this topic. (View topic image gallery).

DS3_initial_settings_(resized).png

#1 4 years ago

Just installed a new Rottendog combo board in my Barracora.
The instructions say to just install connector 1J2, set all DIP's to 1 and boot game with no battery installed.
Then it says I should see blinking LED's on my new board.
However, when I do this I just get solid red LED's
All the provided instructions say is that my board is not operating properly. No suggestions as to what may be the issue.
Thought maybe someone on the boards may have an idea.
I sent an email to them as well as Big Daddy who I purchased the board from but since it is the weekend now I probably won't hear back from them soon.
Any ideas.
I did have the game playing for quite awhile with the original boards but then it started having issues here and there and I decided to just get a new board instead of messing with the original that has been hacked on many many times.

#2 4 years ago
Quoted from Arcade:

The instructions say to just install connector 1J2, set all DIP's to 1 and boot game with no battery installed.
Then it says I should see blinking LED's on my new board.
However, when I do this I just get solid red LED's

Did you remove the metal bar out of the backbox that the original MPU sat on? If not, it may be shorting out something on the new MPU.

Do you have DS3 switches set down? As printed on the board, 1's are down, opposite of what seems logical. If you do have them set down, try pushing them all back to 0's and back to all 1's in case one did not happen to snap when it was toggled.

If that doesn't work, then you'll have to send the board back to Rottendog for warranty repair. It could be many things keeping it from booting up.

DS3_initial_settings_(resized).png

#3 4 years ago

If none of the above works for you, send an email to Rottendog since the board will be sent to them for warranty repair. sales@rottendog.us

#4 4 years ago

You mentioned there are hacks on the original board set. On both boards?

#5 4 years ago

Here is the story so far.
First thing is, I thought the dip switches were the kind that slide up and down not the ones that rock back and forth like these do.
So yes I had them all in the wrong position.
But it turns out it really did not matter.
Now the red LED's stay on solid for about 30 seconds then start blinking like they should. However there is a clicking noise on the board while they are doing this. Had Rottendog on the phone and he says that is not good.
So he had me test voltage at a test point on the board that should have a steady 5 volts.
I was only getting 4.76 which he says is not enough to make the board run stable.
I now have a new power distribution board on the way.
Hopefully that will clear this up.

#6 4 years ago
Quoted from Arcade:

I was only getting 4.76 which he says is not enough to make the board run stable.

Which also could had been the source of the issues you were having with the original MPU/driver board set.

So your original power supply could use a new cap kit.
https://www.greatplainselectronics.com/proddetail.asp?prod=W711A-PEC-KIT

But C12 is most likely your problem on the original board at this time.
If there is a Fry's electronics or Radio Shack, pick up and replace C12 100uf 25volt radial capacitor. Be sure you put this part in correctly or it will explode.

Promoted items from the Pinside Marketplace
From: $ 18.00
Apparel - Men
Pinside Shop
From: $ 9.00
Wanted
Machine - Wanted
Greenville, NC
$ 49.95
Lighting - Led
Pin Stadium Pinball LEDs
$ 50.00
$ 12.00
Cabinet - Other
Siegecraft Electronics
2,800 (OBO)
Sale Pending!
Kalamazoo, MI
$ 17.00
$ 279.95
Lighting - Led
Pin Stadium Pinball LEDs
From: $ 5.00
Cabinet - Other
Rock Custom Pinball
$ 15.00

Hey there! Got a moment?

Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside