Main Restorations Software Audio/Jukebox/MP3 Everything Else Buy/Sell/Trade
Project Announcements Monitor/Video GroovyMAME Merit/JVL Touchscreen Meet Up Retail Vendors
Driving & Racing Woodworking Software Support Forums Consoles Project Arcade Reviews
Automated Projects Artwork Frontend Support Forums Pinball Forum Discussion Old Boards
Raspberry Pi & Dev Board controls.dat Linux Miscellaneous Arcade Wiki Discussion Old Archives
Lightguns Arcade1Up Try the site in https mode Site News

Unread posts | New Replies | Recent posts | Rules | Chatroom | Wiki | File Repository | RSS | Submit news

  

Author Topic: Looking for UMK3 Schematic  (Read 875 times)

0 Members and 1 Guest are viewing this topic.

GuinnessGuy74

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 36
  • Last login:November 08, 2011, 11:01:43 am
  • I want to build my own arcade controls!
Looking for UMK3 Schematic
« on: October 12, 2005, 12:34:00 am »
Anyone have a schematic for Mortal Kombat 3 or Ultimate MK3?? I am NOT looking for a wiring diagram....I am looking for a schematic for the board.

I have replaced a resistor that was broken off, and it came off again......now the graphics are all messed up. Figure ok, no problem....last time I replaced the resistor, presto, graphics were perfect. Not now. I cant seem to fix the problem.

Anyone who has a schematic or knows anything about these boards, the help would be greatly appreciated!!

Thanks,
Jim

Captain_Dingo

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 65
  • Last login:November 28, 2018, 05:57:32 pm
Re: Looking for UMK3 Schematic
« Reply #1 on: October 12, 2005, 12:38:00 am »
I have a UMK3 in my basement... I'd have to dig up the manuals, but I'm not sure I have the full schematic.

I do, however, have the board.  What are you looking for?

GuinnessGuy74

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 36
  • Last login:November 08, 2011, 11:01:43 am
  • I want to build my own arcade controls!
Re: Looking for UMK3 Schematic
« Reply #2 on: October 12, 2005, 01:17:52 am »
Thanks for the reply!

I am looking for a schematic that shows where Resistor 167 goes to and from. I am getting the same voltage reading on both sides ( a voltage drop of zero) which indicates a short. The traces on the board are very small, so they are hard to follow. I am not even sure what the voltage should be....that would be something very helpful!

The pad for the resistor (surface mount) is now gone, but I am able to solder it to a point right before the pad to make the connectiion. This is how it was so I know it works. But after it fell off this time, putting it back doen't work. I need to know if the pad has any other traces going to/from (maybe on another layer inside the board?). Anyway, if you have a schematic I would love to take a look at it.........


Thanks for the help!

Jim

Captain_Dingo

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 65
  • Last login:November 28, 2018, 05:57:32 pm
Re: Looking for UMK3 Schematic
« Reply #3 on: October 12, 2005, 09:04:12 pm »
I just pulled out my manual from that board and there is not a full schematic in the manual.

Sorry... :(