Author Topic: Reel Tilt 42 on S+ 10Mhz MPU (Read 11683 times)

jkp1300 · « **on:** November 14, 2014, 09:31:06 PM »

Hello to all. This is my first post as I've just began having problems with my D-Diamonds machine purchased about 14 years ago. The machine has been rock solid but has set turned off for about a year. I powered up to let the grand kids play and started getting a 42 error code. I've read through the posts and found two discussions that sounded like my problem. All indications point to replacing the MPU. I thought I would describe my scenario in detail so the experts could have all the info I can give. I'd like to make sure this is the route I should take before I order the MPU. I'll describe below and when I say the reels "rotate" it means they all make revolutions at the same time (not real slow) when they shouldn't.

Got the 42 error and swapped #1 & #2 reel plugs
Power up, close door, "resets" (ready for quarter), drop quarter and reels spin and everything works fine
Drop quarter, spin, reels stop, "paid" "credits" "coins played" LED lights go out (always happens at this point) and reels rotate, stop, rotate, stop, then "resets"
Drop quarter everything works fine
Drop quarter everything works fine
Drop quarter everything works fine (pays out 2 credits correctly for one reel cherries)
Drop quarter, reels spin correctly, reels stop, LED lights go out and reels rotate (twice) then "resets"
Drop quarter everything works fine
Drop quarter everything works fine
Drop quarter, reels spin correctly, reels stop, LED lights go out and reels rotate (three times) then "resets"
Drop quarter everything works fine
Drop quarter everything works fine
Drop quarter everything works fine
Drop quarter, reels spin correctly, when reels stop, LED lights go out and reels rotate (four times) then throws 42 error
Open door, power down, swap #2 & #3 reel plugs, power up, close door, "resets"
Drop quarter and the same things happen as above (not exactly but close) for about the same amount of plays until it throws the 42 error.

Sorry for all the repetition but, being new to this, I don't know if it's necessary or not to go into that much detail. Anyway, that's what she's doing and it's got me stumped. I have removed the MPU and checked the reel plugs at the motherboard and all looks good. I've made sure that there are no harnesses rubbing on the reels and that the front glass is not touching the reels when they spin.

Any advice concerning any other tests is appreciated.

Thank you in advance - Kenny Plunkett

Paul · « **Reply #1 on:** November 14, 2014, 09:52:11 PM »

Did you check the battery voltage.
Low battery's do weird things

CVslots · « **Reply #2 on:** November 14, 2014, 10:05:03 PM »

Given the time that has elapsed since you have had the machine, I think Proten is spot on with the battery. At 14 years, that gives HUGE accolades to the battery and battery manufacturer. A Low Battery will give wacky, sporadic messages...you're way over due (as normal battery life is maybe 3-5 years, give or take?).

jkp1300 · « **Reply #3 on:** November 15, 2014, 06:50:06 AM »

Wow! - that is incredible. How could it have lasted this many years

Must have been one heck of a battery!

I could search for this but being as I'm pretty lazy this morning maybe one of you could describe the procedure so I don't have to? Is it just as easy as de-soldering the old battery and soldering in a new one? Are there any resets required?

- Kenny

rickhunter · « **Reply #4 on:** November 15, 2014, 08:57:29 AM »

When you replace the battery, if you have a bill validator, you need to re-enable it. If you don't have a set chip, you would need to buy one. They are inexpensive and very usefull, especially if you ever want to change the game theme. Other than that, you will get some errors after you first boot up the machine, just clear them with the correct procedure which you can find in the FAQ here:

http://www.newlifegames.net/igterrors/

jkp1300 · « **Reply #5 on:** November 15, 2014, 10:36:29 AM »

Thanks Rick. I just picked up a battery and will give it a try when I get home.

- Kenny

jkp1300 · « **Reply #6 on:** November 15, 2014, 06:08:23 PM »

No dice. Got the new battery installed and it threw 61. Held reset button for a couple of seconds till it dinged and threw a 61_1. I cleared it with the jackpot reset key per Rick's link. Dropped a quarter and when it finished spinning, all reels were shaking and "growling" (never seen that before). I opened and closed the door to reset. Dropped a quarter and after the spin all LEDs went out, all reels rotated four times, then threw the 42 error again.

Anything else I can try?

Thanks for the help - Kenny

shortrackskater · « **Reply #7 on:** November 15, 2014, 06:38:59 PM »

In your first post you said:

"Open door, power down, swap #2 & #3 reel plugs, power up, close door, "resets""

Did you get the reels back in their original places? I'm not sure if that would cause the strange reel behavior but always good to get the reels back in their proper holes I think.

cowboygames · « **Reply #8 on:** November 15, 2014, 07:04:06 PM »

I'd take the MPU out and press on both the SP and SS chips to be sure they're seated well and have good connections then check the cabinet around the reels and the area around the reel glass inside the door to make sure nothing could be rubbing the reels to hinder their movement

jkp1300 · « **Reply #9 on:** November 15, 2014, 07:50:28 PM »

Skater & Cowboy - Yes, I re-plugged all three reels into their original harnesses in the original locations (#1, 2, 3). I'm sure nothing is in contact with the reels as stated in my OP. I didn't try reseating the chips since they've never been touched during the 14 years I've owned the machine and it played without fault.

Thanks for the replies!

Kenny

cowboygames · « **Reply #10 on:** November 15, 2014, 08:15:14 PM »

And the pins inside the reel 2 plug that plugs into the reel are clean, no corrosion or anything?

coorslight115 · « **Reply #11 on:** November 15, 2014, 10:07:55 PM »

Quote from: jkp1300 on November 15, 2014, 06:08:23 PM

No dice. Got the new battery installed and it threw 61. Held reset button for a couple of seconds till it dinged and threw a 61_1. I cleared it with the jackpot reset key per Rick's link. Dropped a quarter and when it finished spinning, all reels were shaking and "growling" (never seen that before). I opened and closed the door to reset. Dropped a quarter and after the spin all LEDs went out, all reels rotated four times, then threw the 42 error again.

Anything else I can try?

Thanks for the help - Kenny

At this exact point.. are the reel stiff to turn or free spinning?

jkp1300 · « **Reply #12 on:** November 16, 2014, 05:45:47 AM »

Cowboy & Coors -

No corrosion on anything that I can see. I've unplugged both ends of the reel harnesses and checked them with a bright light. All pins are nice and shiny. It's always been in my game room in the house so it's in good shape albeit a bit dusty and some spider webs

The reels feel good. They turn freely with a bit of resistance but nothing that seems out of "the ordinary" (I wouldn't really know what that is but I think they are fine). I didn't mention it in the OP but I went ahead and ordered a reel off eBay that was listed as "working" and replaced the #2 reel but still got 42 tilt. I should have already mentioned that

Sorry!

Thanks for the replies!

- Kenny

jkp1300 · « **Reply #13 on:** November 16, 2014, 08:01:40 AM »

Just read in the archives where a guy was having 41, 42, 43 errors. He said a grey-beard told him the bank of resistors at bottom right corner facing the MPU can go bad. He replaced these resistors and his problems went away. Has anybody confirmed this is a fix that has been used to repair MPUs for reel tilt errors? Should I give this a shot?

- Kenny

CVslots · « **Reply #14 on:** November 16, 2014, 09:33:31 AM »

Yes, there's a little bank of 5 resistors (numbers end in 1 though 5), for each reel. Since you're machine is a 3 reel machine, you don't need 4 or 5. You can used those as replacements for your problem reel. We've done it, and it works. It's kind of delicate soldering, but it is doable.

Note: I've been told that not all boards will have 5 resistors there (some will only have 3, I guess), but I've only personally banks of 5.

jkp1300 · « **Reply #15 on:** November 16, 2014, 10:11:47 AM »

Yes, my board has a bank of 5. They are all crumbly and actually showing metal (or something) through the "shell". Because of this and my poor eyes

, I'm having a terrible time figuring out the values. Does anyone know what ohm they are or have a schematic that shows?

- Kenny

coorslight115 · « **Reply #16 on:** November 16, 2014, 11:47:27 AM »

They are 10K ohms

jkp1300 · « **Reply #17 on:** November 16, 2014, 12:04:48 PM »

Thanks Coors - I'll replace them this afternoon and post the results.

- Kenny

coorslight115 · « **Reply #18 on:** November 16, 2014, 12:14:36 PM »

This is from the old site and should help you. I have had the reel driver chips cause this too.

jkp1300 · « **Reply #19 on:** November 16, 2014, 02:20:57 PM »

Okay, I'm a little confused

I snapped a micro-pic of the resistor bank to get a better view of the colors because I couldn't come up with 10k no matter how I looked at it! The way I'm seeing it, the ones installed are 470 ohm resistors. I've attached a couple of pics to show you what I'm seeing. How am I misinterpreting this

- Kenny

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Author Topic: Reel Tilt 42 on S+ 10Mhz MPU (Read 11683 times)