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Author Topic: IGT S+ error 41, 42, 43  (Read 8841 times)
slots15301
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« on: October 18, 2011, 12:08:39 AM »
I just picked up a IGT S+ (Spin till you win) It would give error 41, 42 or 43 on reset (reels would spin slow). After I reset it about 20 times I could smell something burning. It was the trace going to pin 2 of J8 on the backplane board. I repaired the trace and tried it again. Now the reels spin faster but still getting errors from all 3 reels ( 2 of the assys would give 90% of the errors. even when I swapped reel positions).  Then the same trace burnt again. Also the trace that goes from j10 pin 7 and ran across the top of the board also burnt.

So. do I have a problem on the CPU or do I have 2 bad reel assys?

* S+damage 001.jpg (450.22 KB, 1280x960 - viewed 339 times.)

* S+damage 002.jpg (436.1 KB, 1280x960 - viewed 303 times.)
« Last Edit: October 18, 2011, 12:56:55 AM by slots15301 » Logged
coorslight115
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« Reply #1 on: October 18, 2011, 12:47:14 AM »
Post some pictures of the board damage. Also look under and around boards for loose coins that may be shorting out the boards.
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slots15301
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« Reply #2 on: October 18, 2011, 12:58:28 AM »
Quote from: coorslight115 on October 18, 2011, 12:47:14 AM
Post some pictures of the board damage. Also look under and around boards for loose coins that may be shorting out the boards.

Pictures added.
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« Reply #3 on: October 18, 2011, 01:34:35 AM »
I would suspect you have a bad MPU not bad reel assemblys.
The slow moving behavior described is a reel error. Its common when something interferes with a spin.
41 =Reel 1, 42=Reel 2 etc...

The bottom corner of the board has 5 resistors. I would looke for an issue there.
3 of the resistors might be somewhat fried. The other 2 will be pristine.
Replace the 3 fried ones with the same value as the 2 good ones.
The S+ can use 5 reels, this was almost only ever done in Australia. So you only see wear on 3 of the resistors.

I agree with the earlier comment. The fixed motherboard might have a coin or two stuffed under it.
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stayouttadabunker
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« Reply #4 on: October 18, 2011, 01:46:53 AM »
Get another motherboard and throw that one away please - before something else burns up on the main MPU board. Burning traces spread like cancer.
Place an wanted to buy ad in the Classifieds sectionof NLG
and I'm sure someone will have one for ya!
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slots15301
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« Reply #5 on: October 24, 2011, 08:56:37 PM »

I replaced the the MPU with a brand new one. Still same problem. I only reset it twice but it gave error 41 the first time then 42 the second. I checked the voltages to the motherboard from the P/S and they are all good. Checked for shorts and loose coins and found nothing. Could a corrupt eprom cause these problems? Anyone have the checksums for a SP731 and SS4455?   Bad reels?

Quote from: jay on October 18, 2011, 01:34:35 AM
I would suspect you have a bad MPU not bad reel assemblys.
The slow moving behavior described is a reel error. Its common when something interferes with a spin.
41 =Reel 1, 42=Reel 2 etc...

The bottom corner of the board has 5 resistors. I would looke for an issue there.
3 of the resistors might be somewhat fried. The other 2 will be pristine.
Replace the 3 fried ones with the same value as the 2 good ones.
The S+ can use 5 reels, this was almost only ever done in Australia. So you only see wear on 3 of the resistors.

I agree with the earlier comment. The fixed motherboard might have a coin or two stuffed under it.
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coorslight115
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« Reply #6 on: October 24, 2011, 09:56:17 PM »
Quote from: slots15301 on October 24, 2011, 08:56:37 PM

I replaced the the MPU with a brand new one. Still same problem. I only reset it twice but it gave error 41 the first time then 42 the second. I checked the voltages to the motherboard from the P/S and they are all good. Checked for shorts and loose coins and found nothing. Could a corrupt eprom cause these problems? Anyone have the checksums for a SP731 and SS4455?   Bad reels?

Quote from: jay on October 18, 2011, 01:34:35 AM
I would suspect you have a bad MPU not bad reel assemblys.
The slow moving behavior described is a reel error. Its common when something interferes with a spin.
41 =Reel 1, 42=Reel 2 etc...

The bottom corner of the board has 5 resistors. I would looke for an issue there.
3 of the resistors might be somewhat fried. The other 2 will be pristine.
Replace the 3 fried ones with the same value as the 2 good ones.
The S+ can use 5 reels, this was almost only ever done in Australia. So you only see wear on 3 of the resistors.

I agree with the earlier comment. The fixed motherboard might have a coin or two stuffed under it.


10 mHz chips on a 16mHz replacement board will   Nerd
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Buzz
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« Reply #7 on: October 24, 2011, 10:12:11 PM »
Quote from: slots15301 on October 24, 2011, 08:56:37 PM

 Anyone have the checksums for a SP731 and SS4455?   Bad reels?


SP731   F823
SS4455  EF00
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« Reply #8 on: October 24, 2011, 11:24:18 PM »
MPU replaced and motherboard still burning traces. Sounds like a short somewhere. Make sure the power supply has the right size fuses. The fuses should be blowing before those large traces cook.
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coorslight115
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« Reply #9 on: October 24, 2011, 11:49:26 PM »
Quote from: poppo on October 24, 2011, 11:24:18 PM
MPU replaced and motherboard still burning traces. Sounds like a short somewhere. Make sure the power supply has the right size fuses. The fuses should be blowing before those large traces cook.

I think he just has the reel errors, no more burning traces. Wait to hear back from him, he purchased a 16mHz board and installed the 731 chip in it, I sent him a 16mHz chip. (no I did not sell him the board ! before you ask... no no)
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poppo
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« Reply #10 on: October 24, 2011, 11:58:34 PM »
Ok, I see it was the first MPU that burned up the traces twice. He still should check the fuse values though.
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slots15301
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« Reply #11 on: October 25, 2011, 12:09:35 AM »
It is now running with the original 16mhz board in it (with correct eproms). It had a SP731 Game Prom in a 16mhz board when I got it. I was told It was working then got the reel error. Now I know that was not true.  All fuses are correct not sure why it burnt the ground traces.








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« Last Edit: October 25, 2011, 03:28:50 AM by StatFreak » Logged
stayouttadabunker
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« Reply #12 on: October 25, 2011, 12:14:57 AM »
A photo of the 3 fuses laid out next to each other the way you take them out,
 starting from top to bottom - will tell us everything... yes

I'll betcha you have a slo-blow fuse mixed in the 3 somewhere.
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slots15301
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« Reply #13 on: October 25, 2011, 12:20:49 AM »

Nope alll fast acting. Top was 6A center was 8A bottom was 6A. I work on coin-op equipment everyday. First thing I done was check the fuses when the trace burnt.

Quote from: stayouttadabunker on October 25, 2011, 12:14:57 AM
A photo of the 3 fuses laid out next to each other the way you take them out,
 starting from top to bottom - will tell us everything... yes

I'll betcha you have a slo-blow fuse mixed in the 3 somewhere.
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stayouttadabunker
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« Reply #14 on: October 25, 2011, 12:23:29 AM »
So, with the right eprom devices - that was all it was?
The original chips weren't OEM?
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poppo
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« Reply #15 on: October 25, 2011, 12:26:24 AM »
Quote from: stayouttadabunker on October 25, 2011, 12:23:29 AM
So, with the right eprom devices - that was all it was?
The original chips weren't OEM?

My take was the original MPU was bad. Replacment MPU was 16Mhz, but came with 10Mhz SP chip and thus the reel tilts.
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coorslight115
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« Reply #16 on: October 25, 2011, 12:26:52 AM »
Quote from: slots15301 on October 25, 2011, 12:09:35 AM
It is now running with the original 16mhz board in it (with correct eproms). It had a SP731 Game Prom in a 16mhz board when I got it. I was told It was working then got the reel error. Now I know that was not true.  All fuses are correct not sure why it burnt the ground traces.

Glad to help you get it running !!
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coorslight115
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« Reply #17 on: October 25, 2011, 12:30:32 AM »
Quote from: poppo on October 25, 2011, 12:26:24 AM
Quote from: stayouttadabunker on October 25, 2011, 12:23:29 AM
So, with the right eprom devices - that was all it was?
The original chips weren't OEM?

My take was the original MPU was bad. Replacment MPU was 16Mhz, but came with 10Mhz SP chip and thus the reel tilts.
Original and replacement MPU were 16Mhz, 731 was wrong all along but did not cause the short. SP1145 got him up and running.
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poppo
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« Reply #18 on: October 25, 2011, 12:35:39 AM »
So is the original MPU also good, or is that one causing the traces to burn?
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slots15301
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« Reply #19 on: October 25, 2011, 12:44:23 AM »
Quote from: poppo on October 25, 2011, 12:35:39 AM
So is the original MPU also good, or is that one causing the traces to burn?
Both MPU's were good (both are 16Mhz). It is running on the original right now and not burning traces. I have no idea what caused the traces to burn.
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stayouttadabunker
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« Reply #20 on: October 25, 2011, 12:50:24 AM »
Quote from: slots15301 on October 25, 2011, 12:44:23 AM
Quote from: poppo on October 25, 2011, 12:35:39 AM
So is the original MPU also good, or is that one causing the traces to burn?
Both MPU's were good (both are 16Mhz). It is running on the original right now and not burning traces. I have no idea what caused the traces to burn.


So we still don't know what caused this...
oh well, the saying goes..."If it ain't broke,..." ...uh...I don't know the rest of it. Cry Laughing
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coorslight115
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« Reply #21 on: October 25, 2011, 12:58:07 AM »
Quote from: stayouttadabunker on October 25, 2011, 12:50:24 AM
Quote from: slots15301 on October 25, 2011, 12:44:23 AM
Quote from: poppo on October 25, 2011, 12:35:39 AM
So is the original MPU also good, or is that one causing the traces to burn?
Both MPU's were good (both are 16Mhz). It is running on the original right now and not burning traces. I have no idea what caused the traces to burn.


So we still don't know what caused this...
oh well, the saying goes..."If it ain't broke,..." ...uh...I don't know the rest of it. Cry Laughing

The rest of it is " Leave it the F*** alone !" .. I think...or at least that is what the wife sayes all the time.
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