Call attendant, door m, door MB flashing

[gposing]

when the door is shut the call attendant, door M,  door MB flash on and off and will not allow the game to play.  When I go into option 4.3.1 processor input test the Main door sensor reports back fine.  I have no hopper or coin handling on the slot but the coin drop door flashes from 1 to 0 and does not stop.  Also the Logic Board switches from 1 to 0, but not at a steady pace.  Any ideas?

[staz]

when you open the door does a siren go off?

[Foster]

What the display is showing that the Main door is open (M) and that Bill Validator door is closed.

Any Door sensors should alternate between 1 and 0 about 1 cycle per second.
M is the Main Door B is the Bill validator door for gaining access to the cash can.

Is the main door staying at 0 when you close it or is it also alternating between 0 and 1?  It Should be alternating while door is closed and at 0 while open.

Check so see if you have a Belly door switch, it will be mounted to the main door in the upper left corner of the belly door opening.
if you are comfortable bypassing the switch do so.
They seem to give people issues due to how the cash drop teams treat those doors while swapping out the cash cans.

[gposing]

The main door sensor worked fine.  when the door was open I received a 0.  When closed 1 and 0.  I checked the switch in the door and it tested out fine.   To bypass I would assume I just tie the wires together as I do with the cash can door.

Where is the coin drop door?

Here are a few videos of the problem.

http://youtu.be/6fUO81CyaY0

http://youtu.be/MQaHjfZPZoQ

Gary

[staz]

did the game ever work? i had a similer problem on my top dollar come to find out it was the mpu..... did you try swapping the mpu?

[cowboygames]

You might take a look at the large, 3 cell green battery on your MPU if it's still there. Look for corrosion and leakage around it. One of the traces for the optics wiring network runs underneath that battery and corrosion will damage it causing these types of failures. Of course you also want to make sure your main door is getting latched properly when you close it and allowing the machine to reset and clear the errors if possible.

[Styx]

For some machines, once you have the error fixed you still have to clear it.

Sometimes once you've closed the main door, you need to turn the reset key.
Another odd one I've found is once you've closed the main door, move the door latch up and down a couple of times.
One odd machine needed a different door opened and closed because it had multiple main door switches, and it was actually a different door causing the error.

Not much to go on, but things to try just in case it's one of those "unique" oddballs.

-Styx

[gposing]

I hope it will be as easy as turning the key.  I will try later tonight
.  Thanks for the idea.

Gary

[staz]

Also take a look at the green battery on your board for leaks..... that can cause door open errors if it leaked......

[gposing]

I always remove the green battery, I bet I messed up a trace on the board.    I swapped the board with one of my other slots and the problem stayed with the board.  I guess I will have to try and figure out what trace I messed up.

Thanks Again.

Gary

[Styx]

That's awesome that you've figured it out!

I hope it's an easy fix!

-Styx

[cowboygames]

I always remove the green battery, I bet I messed up a trace on the board.    I swapped the board with one of my other slots and the problem stayed with the board.  I guess I will have to try and figure out what trace I messed up.

Thanks Again.

If that's a 502 MPU I have an extra you can have for shipping plus a $20 donation to the site to make you a contributing member

Gary