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Author Topic: IGT S+ Schematics 755-057-04 Processor board  (Read 20048 times)
jgadbois
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« on: August 19, 2010, 02:02:44 PM »

I need schematics for a IGT S+ Processor board 755-057-04.  I 've looked at the Liberty Belle set and they don't match up to my board.  I have others that I found on the Net but no joy.  Can someone help me?
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stayouttadabunker
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« Reply #1 on: August 19, 2010, 02:12:30 PM »

It sounds like you somewhat might have one of the newer, revised version of the S+ MPU boards.
(The "04" at the end of the ASSY NO. gives it away...)
Can you upload a good clear photograph of it, to this thread?
Is it a 16MHz board?
I have a ASSY NO. 755-057-0 16MHz MPU board in front of me -
made in 1995.
I also have another S+ MPU with the ASSY NO. 755-057-04 but it's a 10MHz board.
This one is dated 1994.  Scratch Head

I'm not precisely sure what the "04" number was designated for?
Sometimes they put additional labels on it as well such as: P/N 755-115-00 or P/N 755-155-03
« Last Edit: August 19, 2010, 02:29:00 PM by stayouttadabunker » Logged
stayouttadabunker
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« Reply #2 on: August 19, 2010, 02:50:12 PM »

Okay,
I dig some digging around: stir the pot / get cooking
It seems that the:
"-00" means the overall Computer Draw of the processor board component-side.
"-10" means the Board Schematic REF.
"-30" means the Raw Board.
"-50" means the Assembly Drawing of the board.
"-04" means the MPU board for the V2 Assembly. (2nd Version?)
« Last Edit: August 19, 2010, 03:05:12 PM by stayouttadabunker » Logged
jgadbois
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« Reply #3 on: August 19, 2010, 03:51:55 PM »

Here's the pics you asked for.


* IGT Processor Board 001.jpg (454.96 KB, 1600x1200 - viewed 2496 times.)

* IGT Processor Board 002.jpg (446.6 KB, 1600x1200 - viewed 977 times.)
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jgadbois
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« Reply #4 on: August 19, 2010, 03:52:41 PM »

And one more.


* IGT Processor Board 003.jpg (432.4 KB, 1600x1200 - viewed 684 times.)
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« Reply #5 on: August 19, 2010, 11:18:36 PM »

I have the paper schematics page 1 --2 -3 --4 --of the IGT board if needed with complete wiring routes and chip numbers and placement .

i could be all wet the "04" could just mean number of pages in manual -which there are four seperate scematics of that board

the  boards are the same on schematics
« Last Edit: August 19, 2010, 11:24:09 PM by ROCKET » Logged

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stayouttadabunker
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« Reply #6 on: August 20, 2010, 02:12:20 AM »

It does appear from your photo that your MPU is a 10MHz board and was made in 1993.
The 4 page schematic drawings from the manual Rocket mentioned - will match your board.


* S+ MPU schematics page 1.png (272.07 KB, 2556x1652 - viewed 3950 times.)

* S+ MPU schematics page 2.png (292.02 KB, 2628x1652 - viewed 2171 times.)
« Last Edit: August 20, 2010, 02:31:32 AM by stayouttadabunker » Logged
stayouttadabunker
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« Reply #7 on: August 20, 2010, 02:21:44 AM »

Page 3 and 4>>>


* S+ MPU schematics page 3.png (225.94 KB, 2643x1652 - viewed 5562 times.)

* S+ MPU schematics page 4.png (281.76 KB, 2683x1652 - viewed 7971 times.)
« Last Edit: August 20, 2010, 02:33:30 AM by stayouttadabunker » Logged
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« Reply #8 on: August 20, 2010, 09:47:40 AM »

good job Bunker ----I was wondering how the hell i was going to post the schematics
because mine are 3-feet long each out of the manual .. but for some reason my manual seems to have more data
than the one you pulled your pictures from .. because it gives detailed explanation with the silly >>> goes to >>>>U-54 ETC
off to the side .

but perhaps yours do but you just cant see it even on the  click enlarge view !!!
but there are 4 pages we both agree on .

my manual is dated 1988 IGT S+  i pulled that info from

THE OTHER THOUGHT OF THE 04 --03 --ECT is was the board was made in 2004 2003 etc its the same board that goes back a decade !!
i noticed over the years of handling S+ BOARDS & PE -POKER BOARDS --the color ---the dark green board was a later manufacture date .
the light green color was a early manufacture date
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« Reply #9 on: August 20, 2010, 11:28:47 AM »

I copy & pasted pages 117-120 in Section 5: Components & Assemblies
from the Service & Parts Manual dated June 18th, 1993.
Pasted below is Pg.99 from a different Service & Parts Manual dated June 25th, 1993.
I don't like this particular document because it's so unclear to read.
 
Below that, is a photo of light green S+ MPU 10MHz board you were speaking of.
There's is no dated etched in anywhere in this board that I can see.
However, on the back, it is etched 755-057-30 REV. H 
You'd think it would be a later board? >>>


* Chapter_5_Page_99_MPU_Board.png (87.4 KB, 800x600 - viewed 1613 times.)

* Light green S+ MPU ASSY NO. 755-057-0.jpg (1289.43 KB, 2576x1932 - viewed 1255 times.)
« Last Edit: August 20, 2010, 11:41:39 AM by stayouttadabunker » Logged
stayouttadabunker
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« Reply #10 on: August 20, 2010, 11:54:36 AM »

It's weird the way they label and etch the boards and parts.  Scratch Head
This is the same light green MPU board I posted above, but on the back it's etched 755-057-30 REV H.
You'd think it was a later revised board huh? >>>


* Light green S+ MPU ASSY NO 755_057_30 REV_H.jpg (81.52 KB, 901x1201 - viewed 790 times.)
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jgadbois
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« Reply #11 on: August 20, 2010, 12:10:48 PM »

You guys are the greatest for the posts!!!!

I can't speak for the IGT but ----back in the day-----I did component level repair on PCs and the assembly numbers on the processor boards were just changes in the method of silk screening the board itself.  Sometimes it was a different comany who manufactured the raw board, sometimes it was some minor solder run change to eliminate some crosstalk, and sometimes it was component changes due to some different method of manufacture.  But the critical part was the actual part number assigned to the board.  If that number varied, it meant a significant change to the circuitry or logic itself and subsequently a change in the schematics.

Usually you had to match the prints up to the dash number of the board so that you knew what you were dealing with.  Well, like I said, thanks for the help.  I had lost sight of how much fun (and frustration) board repair can be.
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stayouttadabunker
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« Reply #12 on: August 20, 2010, 12:22:16 PM »

What kind of board level tools do you presently own?
Oscilloscope, testers, etc, etc.
Are you getting back into it?
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ROCKET
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« Reply #13 on: August 20, 2010, 01:42:31 PM »

this was my BIBLE and still is when I got int the game back in 1988 etc

the  manual has more raw data than any other IGT manual I have seen to date .
this is a first print .

except for specific game applications etc   "I" GAME -- "GAME KING" ---S-2000  ETC

below are some pictures of the manual dated november 22 1988 --just hapens to be JFK aniversary of assasination date .
i have two more pics to post


* IGT MANAL S+ 1988 1.jpg (36.86 KB, 480x640 - viewed 1085 times.)

* IGT MANAL S+ 1988 4.jpg (39.52 KB, 480x360 - viewed 867 times.)
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« Reply #14 on: August 20, 2010, 01:44:11 PM »

TWO MORE S+ PICS FROM MANUAL


* IGT MANAL S+ 1988 3.jpg (52.23 KB, 480x360 - viewed 3096 times.)

* IGT MANAL S+ 1988 2.jpg (48.91 KB, 480x360 - viewed 2098 times.)
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jgadbois
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« Reply #15 on: August 20, 2010, 08:13:09 PM »

I started out with just a multimeter and oscilloscope, never had any test jigs or anything like that.  I used to work on small to medium scale mainframes where we had to do a lot of "O" work on them and had to put in "hand loops"--programs you dialed in on the front maintenance panel---to see what registers got what bits, etc.  It was fun and I got pretty good at it.  But then when another company bought us, things changed.  Too much politics and no fun anymore.  So I started my own business and that's when the board repair on PCs started.  It was almost all TTL logic.
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« Reply #16 on: August 21, 2010, 08:09:28 PM »

Sounds like starting your own business was ToTaLly LOGICal !!! bust gut laughing bust gut laughing bust gut laughing

Seriously, good for you starting your own business!!! Clap Clap Clap

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« Reply #17 on: August 22, 2010, 07:30:59 AM »

Hi

Here are the same schematics posted by SB in pdf.

Ian

* S+ Schematic.pdf (239.29 KB - downloaded 709 times.)
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« Reply #18 on: August 22, 2010, 11:17:57 AM »

Those are a little bit clearer than my copy! Thanks TZ! yes
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jgadbois
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« Reply #19 on: August 22, 2010, 01:08:28 PM »

I've found some and they seem to check out so far.  They have -10 and -11 markings like TZTech posted plus have individual sections on "What ifs" like "What if you have no segment display".  It shows the complete "LoGIc" (that's for you Captain Happy) isolated to the problem.  It's quite lengthy.  I'll try and get it posted on Monday.
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jgadbois
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« Reply #20 on: August 23, 2010, 01:10:36 PM »

Here is the first set.  Sorry, had to split them up due to size.  Next set to follow.

* Split Schematics 1_1.pdf (2271.26 KB - downloaded 1076 times.)
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jgadbois
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« Reply #21 on: August 23, 2010, 01:11:48 PM »

The next set.  Hope this helps someone.  Always looking to share info.

* Split Schematics 2_1.pdf (2452.83 KB - downloaded 644 times.)
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« Reply #22 on: August 23, 2010, 01:35:50 PM »

That manual basically just tells you to replace the MPU board all the time...  Tongue Out
I didn't think you wanted that one.  Duh!
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jgadbois
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« Reply #23 on: August 23, 2010, 06:11:51 PM »

I wanted one that had schematics.
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