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Author Topic: No Main Power IGT S2000  (Read 17565 times)
slotsx2
JR
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« on: May 17, 2011, 10:23:19 AM »
A button wire on the door of my S2000 shorted out on the door and I now have no power. The chassis lights, including the door and topper lights all work, but the machine won't power on! I have swapped out the Power Supply and the power distribution module, but still no main power?
Any suggestions?  Help
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Jim
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« Reply #1 on: May 17, 2011, 02:00:17 PM »
assuming you swapped out the parts with known good ones?  if the fluoescent  lamps come on then its safe to say that the +25vdc is working. if the leds on the main board come on when power is applied then the 13 vdc is good, because the +13 vdc is used to produce the VCC which powers the LEDS. so if those two are working, then the power supply is putting out the right voltages to get the board to power up and put something on the display. do the LEDS come on ?  anything on the displays?  its possible that some traces were damaged on the motherboard, the power flow is from the power supply to the mother board and into the main logic board and distributed to all other areas of the machine.  some machines have a power distribution card up in the top box. both voltages are present there.

check these out, that is the main power structure for this machine.


Jim
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MIDWEST SLOTS   Selling Quality Slot Machines since 1995.  We service and repair all types of slot machines. Mills, Jennings, Bally EM, 1000/2000 series, Proslot, 6000. IGT  M, M+ ,S,  S+, S-2000,  I-Game,  Universal,  Video Poker, Sigma.
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« Reply #2 on: May 17, 2011, 02:07:26 PM »
Is there a breaker switch on top of the power supply box for machine protection?
Blown fuse/tripped breaker somewhere maybe in the house panel?  Scratch Head
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slotsx2
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« Reply #3 on: May 17, 2011, 02:16:56 PM »
The fluorescent  lamps come on, the topper lights up and the leds on the topper all work but there is nothing lighting up on the door at all. Nothing works except all the lights, and the 120 volt plug inside the cabinet works also. That's it!
Could it be the power distribution board?
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« Reply #4 on: May 17, 2011, 02:18:30 PM »
The MPU no leds light up....
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« Reply #5 on: May 17, 2011, 03:01:21 PM »
if you have a meter then you could check the following: J-13,power connector on the motherboard,(last connector bottom right) pins1=no connection, 2=a grd-black/red, 3=+13vdc-red, 4=+25vdc-orange,5=b grd-black/orange,6=+5vdc-black, 7=a grd-black/red,8=+13vdc,9=+25vdc, 10=b grd-black/orange. either ground can be used to measure the voltage.

to see if the voltage is getting into the MPU, remove board, shroud that encloses the board.(pay attention to this when you remove it ,this helps align the board to mate up with the motherboard) this will expose the connectors that go to the MPU.  on J-1  pin 18A =+25vdc,   J-2 pins 1A and 1B=+13vdc.

if you have these voltages at all these points then you may have fried your board.

Jim 
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MIDWEST SLOTS   Selling Quality Slot Machines since 1995.  We service and repair all types of slot machines. Mills, Jennings, Bally EM, 1000/2000 series, Proslot, 6000. IGT  M, M+ ,S,  S+, S-2000,  I-Game,  Universal,  Video Poker, Sigma.
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« Reply #6 on: May 17, 2011, 04:09:03 PM »
I have the enhanced MPU board... That make any difference?
Would it be safe to try my board in a machine with the same game?
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Jim
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« Reply #7 on: May 17, 2011, 04:44:39 PM »
can't answer that question, don't have any equipment that has an enhanced board in it.   I don't know if they use the same motherboard?

 
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« Reply #8 on: May 17, 2011, 04:48:21 PM »
its a BIG TIMES PAY machine. They all use enhaced boards.
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blueridgeslots
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« Reply #9 on: May 17, 2011, 05:22:32 PM »
Quote from: slotsx2 on May 17, 2011, 04:48:21 PM
its a BIG TIMES PAY machine. They all use enhaced boards.

That is not true, you can use any S-2000 CPU for Big Times Pay, but if you do have an Enhanced MPU check the 2 small Blue "thing a ma giggers"
on the Backplane (Motherboard)
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« Reply #10 on: May 17, 2011, 05:23:21 PM »
Quote from: slotsx2 on May 17, 2011, 04:48:21 PM
its a BIG TIMES PAY machine. They all use enhaced boards.

Hold on, all Big Time Pay machines do not have a enhanced MPU board, ( most do have a enhanced sound board )

Jim they do use a different mother board.
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« Reply #11 on: May 17, 2011, 05:39:37 PM »
I have a 502 MPU in mine.
I don't think that qualifies as an "Enhanced" MPU board... rotflmao

What are the beginning numbers for the "enhanced MPU boards" anyways?  Scratch Head 3
You learn something new everyday here!  yes
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« Reply #12 on: May 17, 2011, 05:53:11 PM »
7551270 for MPU  /  S 2000 Enhanced Memory 1   7682810

One quick way to tell if you have a enhanced board is, it has a decent type handle that won't smash your thumb when removing the MPU from the machine !! (damn that hurts )
« Last Edit: May 17, 2011, 06:02:15 PM by Buzz » Logged
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« Reply #13 on: May 17, 2011, 06:00:32 PM »
Thanks Buzz...
I have to see what my other board is tonight.
Do the "Enhanced" MPU's need different motherboards to slide/connect into?
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stayouttadabunker
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« Reply #14 on: May 17, 2011, 06:01:56 PM »
Thanks Buzz...  YOU ROCK!!! Thanks
I have to see what my other board is tonight.  Sherlock Smiley
Do the "Enhanced" MPU's need different motherboards to slide/connect into?  Scratch Head 2 Scratch Head 3


OOPs...what happened here? I double-posted? Arghhh! sorry.
moderater...please adjust?  Tongue Out
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« Reply #15 on: May 17, 2011, 06:11:12 PM »
Yes Sir different Mother boards.

 I guess I can start a big fight by saying from my experence with them, you don't want one.   stir the pot / get cooking stir the pot / get cooking stir the pot / get cooking stir the pot / get cooking stir the pot / get cooking stir the pot / get cooking

* PICT0409.sm.jpg (350 KB, 800x600 - viewed 663 times.)

* PICT0410.sm.jpg (186.62 KB, 800x600 - viewed 437 times.)
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« Reply #16 on: May 17, 2011, 06:29:13 PM »
Quote from: blueridgeslots on May 17, 2011, 05:22:32 PM
Quote from: slotsx2 on May 17, 2011, 04:48:21 PM
its a BIG TIMES PAY machine. They all use enhanced boards.

That is not true, you can use any S-2000 CPU for Big Times Pay, but if you do have an Enhanced MPU check the 2 small Blue "thing a ma giggers"
on the Backplane (Motherboard)
   AS PER JIM stated there are fuses on the enhanced motherboard check them
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slotsx2
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« Reply #17 on: May 17, 2011, 06:49:26 PM »
OK, so per Jim, if I didnt have an enhanced MB I could have fried my machine? Why would you NOT want an enhanced MB?
It was just a brief brush of a wire on the door that did this.........

Thank you all for your help, and YES I found a blown fuse after digging through a God awful amount of wires. I got lucky this time, might not the next time, soooooo,
I learned a VERY valuable lesson this time.......... ALWAYS, ALWAYS turn off ALL power and I will disconnect the power cord when doing ANY work inside the cabinet!!

I build computers and they aren't as unforgiving as these things called SLOT MACHINES! Silly Me!
Thanks to EVERYONE for your help. It is VERY MUCH appreciated!
« Last Edit: May 17, 2011, 07:33:18 PM by slotsx2 » Logged
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« Reply #18 on: May 17, 2011, 11:46:44 PM »
Just to clarify a couple of things slotsx2, a MB (motherboard) in a desktop tower case
will be the large circuit board that has everything plugged into it.
In slot machines, the MB also has everything plugged into it but has
an added MPU ( Main Processing Unit ) circuit board.

This MPU board that slides into large connector headers will contain most of the
stuff you see on regular computer motherboards.
The motherboards in slot machines are also referred to as "Backplane" boards.
Just a little different from home computer terminology...

As far as "Enhanced MPU's"...I think they also slide
into different motherboards/backplane boards.
I'm NOT sure about this though ...
because I only have a couple of knuckle busters... rotflmao
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Foster
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« Reply #19 on: May 18, 2011, 12:39:54 AM »
The 1270 enhanced MPU's have a different motherboard than 501,502, 504 MPU's
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« Reply #20 on: May 18, 2011, 12:56:12 AM »
Yes they do.....
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« Reply #21 on: May 18, 2011, 12:56:40 AM »
like this

* P1010082.JPG (921.59 KB, 2272x1704 - viewed 531 times.)
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« Reply #22 on: May 18, 2011, 12:59:13 AM »
So...! That's the 2 blue thing-a-ma-jigs asperjim was talkin' 'bout....ahh....

Fuses...Are they like breakers or do you have to replace them if blown?
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« Reply #23 on: May 18, 2011, 01:02:22 AM »
BUNKER they just like new style car fuses  they blow and you replace them
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« Reply #24 on: May 18, 2011, 01:03:37 AM »
oh! okay..thanks PB! applause
Kudos ++ to ya!
I learn something new everyday! yes

ps
I gave everybody a + karma except Buzz...he has too many already...lol
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