Manekineko E6 error related to memory loss when left unplugged

[DaveG_66]

Hi, new to the forum, and need some info. A friend of mine dropped off an Aristocrat Manekineko Pachislo plus Daruma for me to look at, that he acquired during a move. It apparently was stored in a damp or wet garage. Other than some outside cosmetic moisture damage, dead spiders, and grime from bench grinder, it was thankfully complete.

When it’s plugged in and turned on, it shows a E6 error (nothing to do with the coin hopper), and after a typical reset involving the odds key, etc. it plays great. After doing some tests, it loses the memory setting approximately 20-25 seconds after being turned off and reverts to the E6 error when turned back on. In order to play it, it had to be reset every time it was turned on.

Then I discovered if I left the machine on in idle mode for several hours, it would retain settings for a longer period of time.
Suspecting a battery backup for odds setting was involved, I found a 5.5V 0.22F “super capacitor” located on the top board inside the front door. (I think this is the sound and input board)

So if my friend decides to replace the capacitor based on performance, and out of curiosity, a few questions:

-Is this the right location for the capacitor, or is there another in a different place?
-And, if the machine were left unplugged, how long does this capacitor hold a charge, assuming it has a good charge?
-And what does it take to make sure it’s charged completely, meaning how long should it be plugged in and on for a charge?

Thanks for any information, this forum has been very helpful and informative while doing a crash course on how to repair them. More questions about game settings may follow.

[MrGneiss]

WELCOME!!!

[takethecastle57]

and biscuits

[stampeed valkyrie]

Hi, new to the forum, and need some info. A friend of mine dropped off an Aristocrat Manekineko Pachislo plus Daruma for me to look at, that he acquired during a move. It apparently was stored in a damp or wet garage. Other than some outside cosmetic moisture damage, dead spiders, and grime from bench grinder, it was thankfully complete.

When it’s plugged in and turned on, it shows a E6 error (nothing to do with the coin hopper), and after a typical reset involving the odds key, etc. it plays great. After doing some tests, it loses the memory setting approximately 20-25 seconds after being turned off and reverts to the E6 error when turned back on. In order to play it, it had to be reset every time it was turned on.

Then I discovered if I left the machine on in idle mode for several hours, it would retain settings for a longer period of time.
Suspecting a battery backup for odds setting was involved, I found a 5.5V 0.22F “super capacitor” located on the top board inside the front door. (I think this is the sound and input board)

So if my friend decides to replace the capacitor based on performance, and out of curiosity, a few questions:

-Is this the right location for the capacitor, or is there another in a different place?
-And, if the machine were left unplugged, how long does this capacitor hold a charge, assuming it has a good charge?
-And what does it take to make sure it’s charged completely, meaning how long should it be plugged in and on for a charge?

Thanks for any information, this forum has been very helpful and informative while doing a crash course on how to repair them. More questions about game settings may follow.

So your issue is very common, considering the age of the machine and average lifetime of a capacitor. The cap in question will hold the machine settings in memory while unplugged, when the cap goes bad you get issues similar to what your experiencing now. You can choose to replace the cap, and assuming its the correct one it will keep the machine settings longer. Not replacing the cap, basically means you need to do a full reset with odds everytime you power the machine up.

[DaveG_66]

So your issue is very common, considering the age of the machine and average lifetime of a capacitor. The cap in question will hold the machine settings in memory while unplugged, when the cap goes bad you get issues similar to what your experiencing now. You can choose to replace the cap, and assuming its the correct one it will keep the machine settings longer. Not replacing the cap, basically means you need to do a full reset with odds everytime you power the machine up.

Thanks for the response. I guess it depends on what my friend wants to do, based on how often he plays it. He's going to open the machine to pull tokens out, so a reset or changing odds will probably be common anyway. But I'm curious as to how long do these machines hold memory settings when unplugged, assuming the capacitor is new. Is it days or weeks? This is the first time I've encountered one of these, usually I find onboard lithium batteries in stuff I've tinkered with. I do know it will hold settings overnight, maybe 8 hours tops, if it's left on for 6 hours.Thanks.

[bjab]

Google this ..... how long does a capacitor stay charged ......

and then read the overview

[DaveG_66]

Google this ..... how long does a capacitor stay charged ......

and then read the overview

Already did that, but the answer is somewhat vague in this particular application. I'm actually looking for an answer for dedicated owners based on experience with their machines, this why I joined this forum. Thank you.

[bjab]

I guess since I currently only have 10 Pachislos, I'm not a dedicated owner and have no expierience.
Everyone on here trys to help a newbie.
And to be honest with you.... I don't turn my machines on very often and they all still hold their memory perfect. You must have a leaking capicitor.
Buy a super capicitor and replace it, if you can find the correct one.
Stampeed Valkyrie basically told you the same thing.
Hope you figure it out.

[DaveG_66]

I guess since I currently only have 10 Pachislos, I'm not a dedicated owner and have no expierience.
Everyone on here trys to help a newbie.
And to be honest with you.... I don't turn my machines on very often and they all still hold their memory perfect. You must have a leaking capicitor.
Buy a super capicitor and replace it, if you can find the correct one.
Stampeed Valkyrie basically told you the same thing.
Hope you figure it out.

Well now, that's the answer I was looking for. I'll pass this information on to him and see what he wants to do. Mouser.com has a direct replacement but have to confirm the dimensions.Thanks for the information.

[bjab]

Post a link to the capicitor you found on Mouser to replace it with, so we can all see the one your getting.
Hope it will solve the problem you're having.

[DaveG_66]

Post a link to the capicitor you found on Mouser to replace it with, so we can all see the one your getting.
Hope it will solve the problem you're having.

Certainly. here is the link: https://www.mouser.com/ProductDetail...u5XkCCuA%3D%3D This for the supercap located on the board inside the top of the door.

But now another mystery. I found another supercap on the power supply board next to the power output jack for the boards, it has a mysterious "3D2" that's visible. I'll have to remove the board from the box to see if it has any other markings on it, I'll provide more information later.

In the meantime, currently doing a deep clean of everything in the back box to remove the dust and grime, so I'm removing the reel assemblies and cleaning those one at a time. A word of warning to anyone who attempts to clean the inside of the printed reels, the trick is to wipe them off with a DAMP microfiber cloth carefully and slowly, using very mild solution of Dawn soap and water. DO NOT use a lot of water, the graphics may pucker and lift off. (tested this on a very small area with a drop of water lol) Outside of the reels can be wiped down normally.

[stampeed valkyrie]

Some of this is a guessing game, the button cell supercap your looking at is probably the right one, but as you discovered there might be more then 1. I would read the old cap and find one of equivalent voltage and capacitance, I'd get a meter out and do some testing after you remove from the board to verify its bad.

[DaveG_66]

Some of this is a guessing game, the button cell supercap your looking at is probably the right one, but as you discovered there might be more then 1. I would read the old cap and find one of equivalent voltage and capacitance, I'd get a meter out and do some testing after you remove from the board to verify its bad.

An update on the super cap on the power supply, it is 5.5V 0.10F. Mouser Electronics has these as well, and the link is:

https://www.mouser.com/ProductDetail...oMnD21GOkkk%3D

I'm probably just going to replace both when I get to that, but how would I test these out of circuit? I have an old capacitance meter to measure the value, but how would you measure voltage assuming it would be discharged when removed for testing? Thank you for any Info, greatly appreciated.

[Drunkenclam]

I'm not sure how to test capacitors. I should really look in to it. Especially with new ones so I can see correct values.

[bjab]

I found this but it's pretty detailed.
https://www.instructables.com/How-To...er-Capacitors/

[DaveG_66]

I found this but it's pretty detailed.
https://www.instructables.com/How-To...er-Capacitors/

Thanks for the link, but jeez, look at all that nice test equipment, puts my old Radio Shack Micronta to shame lol. Probably just going to install the parts when I get them and see what happens, still waiting for delivery. A heads up about Mouser Electronics (based in Texas), they are now adding a 10% tariff on all individual parts, on top of taxes and shipping. If you find parts elsewhere without the BS, go for it.

[DaveG_66]

Okay, turns out it was the supercapacitor (5.5V 0.1F) on the power supply. Turned the machine on, reset it, and played it for about 10 minutes and turned it off. It held the memory settings overnight and no E6 error. Also replaced the supercapacitor (5.5V .22F) on the audio/inputs board on the inside door for good measure. Game plays well, I'm considering buying it if he's willing to sell. So to others who are still having errors upon startup, replace the one on the power supply. Thank you.