E2 Hopper Error Jam Help Heiwa machine

[Mondo3000]

I have a troubleshooting question about my Heiwa Pachislo slot machine (Doronjo).

Every time a coin payout is requested, the Hopper moves every so slightly and tries to eject one token.

The coin seems to stop in the ejection path and the machine errors out an E2 or E3 error code.

The hopper wheel moves fine and ejects coins fine when rotating it manually.

Applying a 12v power source to the hopper motor, makes it turn.

When the hopper is plugged in, I can trigger the optical sensor by moving an object or the little arm through it.

The hopper has been cleaned,m and lubed meticulously. There is no reissue build up or anything blocking the turning of the wheel.

I am ready to buy another hopper however I wanted to check with the experts here first.

Are there any outlet troubleshooting tips that o am overseeing?

[takethecastle57]

and biscuits.

Nice, Clear, photos of the machine and areas in question can help us help you.

[Mondo3000]

I had a picture of the hopper taken from the machine.

As you can see in the first image, the tokens stop ejecting at the exit path.

Upon a coin redemption, the wheel spins slowly, one notch at a time. It may or may not get one coin ejected. If it does eject, the wheel spins slowly again one notch at a time and will error out when the token is at the exit position.

Things done so far:

1) cleaned optical sensor
2) cleaned patch of rotary wheel and lubed
3) checked springs and lived on the optical handle
4) turned wheel when power off to ensure smooth rotations
5) Tested optical sensor on hopper by placing a piece of paper within the beam to ensure that it trips. The optical sensor triggers an interrupt.
6) Tested the hopper motor with a 9v battery and it spins
7) Reseated cable connectors on hopper and PSU.

All tests done still early in the hopper giving an E2 hopper error when the coins are dispensing.

On a side note, I read here that perhaps the PSU unit may be faulty?

The PSU unit still is giving power to the hopper as noticed in the slow turning of the wheel.

I will gladly replace the hopper or PSU unit if I can understand what unit is actually giving the problem.

Any suggestions are welcome.


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[Drunkenclam]

You said the motor turns with a 9v/12v supply attached. But did you try it with tokens in? of course be careful as they can come out with some force. The motor might have lost its power so might turn when empty but not when there is resistance. Also worth checking for play between the motor and the driving components. cracked plastic around the shafts etc.

[takethecastle57]

I've never seen that design of token bin but one question what does the token bin look like ?

[Drunkenclam]

I think it's just missing its side walls.

[Mondo3000]

Here are some pics of the machine and the hopper.

The previous pics had the top part removed from the bottom portion exposing the wheel.





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[Mondo3000]

I reattached the 9v battery to the wheel motor in the hopper and it does in fact spin and spit out the coins.

The rotation however is slow but this can perhaps be attributed to just the 9v I am applying as it requires 12v.

I am willing to buy an entire hopper for this if necessary.

My question is, do you think a new hopper would fix my E2 payout error?


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[Mondo3000]

I have looked over the Hopper in detail and see no physical damage or cracks.

The only action that is different is when the machine goes into payout/cashout to dispense tokens. The hopper wheel gets the signal and rather than go in a fluid constant spin to dispense coins, it spins like an 1/8th of turn at a time. Almost like a second hand of a watch. Click click click etc.

It seems the wheel stops when the token is in the ejection path of the hopper. (Hand inside optical sensor).

It seems to me that it is either the motor, sensor or that little plastic power supply under the unit.

If anyone can direct me to what you think the issue could be, I would appreciate it. Just looking for some other feedback to assist in my troubleshooting.

More detailed photos of the hopper are below.

For troubleshooting purposes, I removed the chute at the top of the hopper to have a better visual of the wheel rotation.









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[Mondo3000]

I did the very large test again on the spinning Hopper Wheel with a proper 12v.

The wheel turns beautifully and ejects all the coins in a nice quick and smooth fashion. The motor operates fine with 12v applied.

So my next question is, could the issue be with the sensor now or the little circuit board transformer under the hopper?


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[Drunkenclam]

The sensor only counts the coins out. I wouldn't see it having an effect on the force of the motor. It would either go straight into error. Or.spit couns out. Then go into error. Next for me is to monitor the power being sent to the motor when it goes to payout. If its.not the motor. Might be the supply voltage.

[Mondo3000]

Thank you. The hopper has a small circuit board that is enclosed in a brown box.

The power cable from the hopper motor and hopper sensor connect to this circuit board in the box.

The power from the machines PSU goes into this circuit board and this circuit board controls the power to the motor and sensor.

In your opinion, would it be this circuit board that would need to be troubleshooted?




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[Mondo3000]

I was able to figure out how to take a proper voltage readying for the hopper motor.

At every payout, the little circuit board is sending approx 5 volts to the hopper motor.

Is this sufficient or should it be 12v?


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[Mondo3000]

The machine is always erroring with the E3 code. ( hopper empty)

Could this but the hopper optical sensor?


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[rockston]

Put coins in it and 5 volts to the motor and see. The motors on most are rated at 24vdc

[Drunkenclam]

I would check the incoming voltage to the circuit board. Can you remove the board and take a picture of it. It might have an H Gate motor controller on it or it might just be distribution board.

[Mondo3000]

Here is the picture of the board.





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[Mondo3000]

Also, I want to note that the error the machine is giving is E3 (not E2 anymore).

It is constantly E3 which I understand to mean Hopper is empty.

Please explain to me the logic of how it thinks the hopper is empty. Maybe if the wheel is spinning too slow, the arm stays too long in the optical sensor?

Does the optical sensor determine the speed of the wheel in any fashion?

I am just trying to pinpoint as to what component is bad.

If you were to say that an entire new hopper would fix this, I will buy another one.

Let me know.


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[Drunkenclam]

Never heard of a hopper going at different speeds. Its either going or not. Wow that board had more on it than I though. Although. I can't see to confirm. It's the black ic with the 2 brass screws that probably look after the motor. See if you can read the part number and look up the spec sheet. Determine what 2 pins are the incoming voltage. The test to confirm your getting 12/24 v.

[Mondo3000]

So I was finally able to allocate more time to this and analyzed the Full Bridge Driver IC that you mentioned.

Turned out to be a Toshiba TA8429H. The spec sheets are readily available online and reviewed it.

Obtaining the voltage on this IC is difficult because it appears that the only time voltage is applied is during payout.

Holding the probes on the underside of the IC while depressing the change button is proving difficult to get a reading.

The specs say pin 1 and 2 are the incoming voltage pins. Taking a reading on these, I get zero voltage. The wheel does spin fast but jams wi try an E3 error the moment the token is halfway out the exit path.

If the solution is now getting down to testing the IC’s, would it be a fair assessment to just get a used working hopper?


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