Author Topic: Coin Optics and Hopper Optic All Read Zero (Read 23925 times)

Trooper11040 · « **Reply #120 on:** April 28, 2018, 05:29:00 PM »

Does anyone know where this part comes from? As I await the arrival of my RP1 for the MPU to come in the mail, i decided to start cleaning up the game a bit, cleaning the chrome, etc...i found this part and have no clue where it comes from

Badbaud · « **Reply #121 on:** April 28, 2018, 05:42:55 PM »

It goes way in the back to cover the wiring so a coin doesn't fall back there and short out something.

Trooper11040 · « **Reply #122 on:** April 28, 2018, 05:50:17 PM »

Ok. Iâ€™ll try to look at where it clips in. Thanks as always! Hopefully your care package shows up Monday lol

Trooper11040 · « **Reply #123 on:** April 30, 2018, 12:03:18 PM »

And the machine is WORKING!!!! The only remaining issue I see is occasionally if I drop a quarter in, it will pass thru without giving me a credit. Maybe 1 out of 30 wonâ€™t register.

rokgpsman · « **Reply #124 on:** April 30, 2018, 12:23:00 PM »

That's good news about it working 99%. What did you find out was the main reason the coin optics and hopper coin-out optic were not working?

For the rejected coin problem-
Did you turn the coin comparitor sensitivity adjustment all the way counter-clockwise? That's the small screwdriver adjustment in the lower-right corner on the front of the coin comparitor. If you've already done that then sometimes it helps to replace the "sample" coin quarter in the coin comparitor with a different coin. And make sure the screw on the sliding cover is firmly tightened. That's what keeps the sliding cover close to the front side of the sample coin so its metallic quality can be accurate measured. The sliding cover contains the sensor that is part of the comparitor electronic circuit.

Trooper11040 · « **Reply #125 on:** April 30, 2018, 12:39:09 PM »

Badbaud I have to thank you big time for helping me and supplying the part!!

As for the coin not registering sometimes, I have it tightened all the way. Iâ€™ll try my second optic that I have laying around and see if that works

rokgpsman · « **Reply #126 on:** April 30, 2018, 12:43:03 PM »

Does your coin optic boards have the 25cent spacer between the boards, that's what forces the coin to pass thru the coin optic boards properly and get detected. Don't forget to try replacing the sample coin, it's easy to do. Not all quarters are created equal - metallically speaking.

Trooper11040 · « **Reply #127 on:** April 30, 2018, 12:49:59 PM »

I replaced the coin and changed the sensitivity. Still every now and then one goes thru

rokgpsman · « **Reply #128 on:** April 30, 2018, 12:52:52 PM »

The coins that pass thru and don't give you a credit, do they go into the hopper, or returned to front coin tray?

If they go to the hopper then the problem is the coin optics boards. If the coin gets rejected to front coin tray then the problem is the coin comparitor.

Trooper11040 · « **Reply #129 on:** April 30, 2018, 01:03:27 PM »

Ok I just changed out the optic and itâ€™s working. They were going into the hopper

Badbaud · « **Reply #130 on:** April 30, 2018, 04:41:33 PM »

Quote from: Trooper11040 on April 30, 2018, 12:39:09 PM

Badbaud I have to thank you big time for helping me and supplying the part!!

As for the coin not registering sometimes, I have it tightened all the way. Iâ€™ll try my second optic that I have laying around and see if that works

Did you follow my instructions?

Trooper11040 · « **Reply #131 on:** April 30, 2018, 05:17:06 PM »

Quote from: Badbaud on April 30, 2018, 04:41:33 PM

Quote from: Trooper11040 on April 30, 2018, 12:39:09 PM
Badbaud I have to thank you big time for helping me and supplying the part!!

As for the coin not registering sometimes, I have it tightened all the way. Iâ€™ll try my second optic that I have laying around and see if that works

Did you follow my instructions?

to the T....once I put the new optic in, everything worked perfect...havent had any slip up on the coins with the new optic

knagl · « **Reply #132 on:** April 30, 2018, 10:24:40 PM »

Congrats on getting your machine working. Can you please elaborate on what you did or what part(s) you replaced to get it working, for the benefit of someone viewing this thread in the future?

Trooper11040 · « **Reply #133 on:** May 01, 2018, 04:26:28 AM »

So after checking every single wire from MPU to optics, and not getting it working, I looked at the diagram for the optics. The optics used a resistor named RP1...I noticed it was missing (something one wouldnâ€™t notice right away because itâ€™s small). Once it was replaced, everything was golden!!

Amechanic · « **Reply #134 on:** May 01, 2018, 09:32:04 AM »

Congrats on your fix.

Iâ€™ve been following this thread almost from the beginning. Nice find on the missing part on the MPU Board. You had great help with Badbaud too.

Trooper11040 · « **Reply #135 on:** May 01, 2018, 09:46:37 AM »

Quote from: Amechanic on May 01, 2018, 09:32:04 AM

Congrats on your fix. Iâ€™ve been following this thread almost from the beginning. Nice find on the missing part on the MPU Board. You had great help with Badbaud too.

Heâ€™s fantastic along with many others here. So much great help!

rokgpsman · « **Reply #136 on:** May 01, 2018, 01:19:54 PM »

Quote from: Trooper11040 on May 01, 2018, 04:26:28 AM

So after checking every single wire from MPU to optics, and not getting it working, I looked at the diagram for the optics. The optics used a resistor named RP1...I noticed it was missing (something one wouldnâ€™t notice right away because itâ€™s small). Once it was replaced, everything was golden!!

Was that missing RP1 broken off of the mpu board, or was it never installed to being with? Did the solder holes have little broken leads in the holes, or did the solder holes only have solder?

Trooper11040 · « **Reply #137 on:** May 01, 2018, 01:27:55 PM »

I noticed there was nothing on RP1 like it was ripped off. Still had pins in the holes. I had to desolder the old pins

rokgpsman · « **Reply #138 on:** May 01, 2018, 01:32:29 PM »

Quote from: Trooper11040 on May 01, 2018, 01:27:55 PM

I noticed there was nothing on RP1 like it was ripped off. Still had pins in the holes. I had to desolder the old pins

That means it probably got broken off when the board was being handled at some point in the past. If you'd had another mpu then installing it for troubleshooting would have quickly shown that the mpu was the problem, and that the coin optics boards and associated wiring was ok. Glad you got it figured out.

What's the status of the monitor display width problem?

Trooper11040 · « **Reply #139 on:** May 01, 2018, 02:24:56 PM »

The width is still an issue. I canâ€™t get it full width. Not sure what component on the chassis needs replaced or adjusted

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Author Topic: Coin Optics and Hopper Optic All Read Zero (Read 23925 times)