(Topic ID: 257050)

Johnny Mnemonic - Glove test "home" failed

By jimy_speedt

4 years ago



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#1 4 years ago

Hi,

I have had so many problems with the glove that I replaced all touchy components.

Although the ball is properly captured, I have some problems with the glove going backward and forward on the matrix.

The first thing I have done is to test the glove. In the manual, nothing is explained when you received a "Failed" in test mode (and you cannot move the glove with buttons afterwards). There are 2 rows displayed with each two squares, some a crossed other are empty. I do not know what they correspond to. How to address this home position problem ?

Any help is welcome

Thank you

#2 4 years ago

The squares are the optos on the motors. They should both toggle as the hand moves.

Try a factory reset; I was having the same issue homing despite the mech working fine until I did that.

Does the hand move at all when you enter the test? (with interlock closed)

Do both your home switches register in switch test?

#3 4 years ago

Hi, thanks for the reply,

When I switch on the game, the hand move forward until it reaches the switch, back and forth twice, then goes backward and stops. I open the door to make enter the test and close the door.

I ll answer your questions about the home switches tomorrow. Regarding the hand movement in test, there is no hand movement. Only a test progress message, then "Failed". Buttons do nothing the hand stays where it is.

Would you mind reminding me whether the X is left - right, or forward-backward movement, please ?

thanks

#4 4 years ago

Double check the optos. I've rebuilt the hand on my JM. When I first put it back together and tried it for the first time, it wasn't going forward and back. Upon investigating, I discovered I had the opto wheel to far to one side and it caught with the opto housing.

Another thing to check...I've also found if you use the buttons in test mode, you can accidentally move the hand out of it's range and it will lock/bind. In this case, you need to manually move the hand by turning where the rod connects with the motor. Reset it to normal. Hope that makes sense.

x is left/right
y is forward/back

#6 4 years ago

I have to admit that I had not performed the test properly. I must push the 2 interlock buttons before starting the test , as advised here above, to get proper values. And then yes, I get a normal self test behavior, also for Home.

I get a problem on the Y axis. The hand does not move forward up to the end. It stops just two centimeters (about 1”) after it closed the switch. Pressing the button has no effect and I get a “failed” displayed.

Thanks for your help again
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#7 4 years ago

Got the solution from Twillightzone, hopefully. After adjusting the opto interrupter between the opto sides , it seems to work perfectly.

Thanks to all the people who have replied. Everyone has been helpful

#8 4 years ago

Glad it worked for you.

5 months later
#9 3 years ago

Not a reply but a related question. I, too, have been conducting the hand test improperly. However, the hand doesn’t move at all when the machine is first turned on like it used to. No motor or electrical sounds. It’s not disabled. New threaded x rod, x and y nuts. All fuses intact. The hand may be in the wrong start position. Trying to get this working for my son, who is autistic and has been a pinball lover since he was 8. Used to take him out to play two or three times a week but the virus has ended those options so I’m working on his JM and NBA Fastbreak but I’m new to repairing pins.

#10 3 years ago

Hi,

I guess a new topic would enable you to get more answers.

This glove is a nightmare. The only problem is that the machine is sold now, I cannot have a look anymore.

Was the pin working fine, and suddenly no more movement ? or have you always known the machine with this problem ? In the second case, did you check in the menu/adjustments/game specific that the option "Disable glove" (or "Glove enabled" or sthing like that) is well parameterized,i.e. the glove is active ? When the glove has a failure, some owners disable the option, so the game is not disturbed by a malfunction.

You start the machine, no movement at all you wrote. When you go in test mode with the interlock closed, does the glove move or not at all, on either X and Y ?

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