Asking for more help please...

[jonbbrew]

before you purchase anything, use the display from the slant top and plug it in to the upright, doesn't have to be installed, just unplug the 5 pin connector from the upright machine and plug it into the display from the slant top, holding the display in your hand, turn on the machine and see what you see on the display!

should take all of 10 minutes to do this.

Jim

Thanks Jim I appreciate the continued help. I just went out and try that but nothing changed. It did briefly flash a digit, but was weird as I powered it up a few times. It did not do the same thing. I’ll try to post pictures in just a second.

[jonbbrew]

before you purchase anything, use the display from the slant top and plug it in to the upright, doesn't have to be installed, just unplug the 5 pin connector from the upright machine and plug it into the display from the slant top, holding the display in your hand, turn on the machine and see what you see on the display!

should take all of 10 minutes to do this.

Jim

OK, so these are screenshots of a video I took. I powered it on and off about three times and each time it gave a different result. These are only millisecond flashes nothing sustained. This thing is crazy! Every time I try something new, I feel more and more lost and disappointed. I really want this to join my other ones in working.

[jonbbrew]

Can any issue with the arm lever prevent the board from booting up without an error first? I’m really running out of things to look at here to figure this out.

[Jim]

can you take a close up picture of the plugs on top of the cpu housing. should be four of them.

Jim

[jonbbrew]

can you take a close up picture of the plugs on top of the cpu housing. should be four of them.

Jim

[jonbbrew]

Any other ideas anyone? Thanks in advance.

[RobinAK]

Any other ideas anyone? Thanks in advance.

Okay so this is my thought. Check all the display circuits from end to end for continuity and for being shorted to one another and carefully inspect the connections for the display on each end. If nothing is found. I would disconnect everything from the MPU and mother board that is not needed to make the board power up and make the display come on. So basically just power to the mother board, the MPU plugged in to it and just the needed wiring for the display itself connecting to the MPU & Board. Nothing else connected. No reels, buttons, BV, lights or anything. And I would disconnect closest to the MPU and mother board. To help eliminate wiring shorts as being the issue. And just focus on getting the display to come up and give codes which obviously its gonna have codes with everything disconnected. Then slowly start reconnecting everything until the display stops working. Just and idea.
 
 

[ggodar]

 I went through just about the same thing so this is going to sound to easy to be true. Mine was the molex connections for the door optics. I had stuck my probe for MM in the female end and it spread them out so I took a pick and bent them back tight. They felt tight but wasn’t making connection. I know it sounds silly but it worked an ever since. Try it.

[jonbbrew]

Any other ideas anyone? Thanks in advance.

Okay so this is my thought. Check all the display circuits from end to end for continuity and for being shorted to one another and carefully inspect the connections for the display on each end. If nothing is found. I would disconnect everything from the MPU and mother board that is not needed to make the board power up and make the display come on. So basically just power to the mother board, the MPU plugged in to it and just the needed wiring for the display itself connecting to the MPU & Board. Nothing else connected. No reels, buttons, BV, lights or anything. And I would disconnect closest to the MPU and mother board. To help eliminate wiring shorts as being the issue. And just focus on getting the display to come up and give codes which obviously its gonna have codes with everything disconnected. Then slowly start reconnecting everything until the display stops working. Just and idea.

thank you. I’ll check that out.

[jonbbrew]

I went through just about the same thing so this is going to sound to easy to be true. Mine was the molex connections for the door optics. I had stuck my probe for MM in the female end and it spread them out so I took a pick and bent them back tight. They felt tight but wasn’t making connection. I know it sounds silly but it worked an ever since. Try it.

Interesting. So I was under the impression that it would still boot up, spin etc but just not play with optic issues. Sounds like you’re saying that it won’t?

[ggodar]

No it will not.

[jonbbrew]

No it will not.

Interesting. My other machine will spin and show on display with door open.

[RobinAK]

I went through just about the same thing so this is going to sound to easy to be true. Mine was the molex connections for the door optics. I had stuck my probe for MM in the female end and it spread them out so I took a pick and bent them back tight. They felt tight but wasn’t making connection. I know it sounds silly but it worked an ever since. Try it.

I had a machine with same issue. It would randomly have door open issues. Like very random. It go for days or even weeks and would glitch once. Go for another week or more. Sometimes it would act up for 10 mins and then go away. It would do it just long enough for me to dive into it and then it would stop. Oh man it drive me nuts. Was hard to nail down for sure. Was exact same issue, spread optic terminals.

[ggodar]

I am no expert on S Plus machines. I would have to think your other machine has some sort of by pass on the door optics. Everyone I talked with on my issue said your door have to work before everything else will work. When I finally figured it out the machine runs perfect. Good luck.

[jonbbrew]

I went through just about the same thing so this is going to sound to easy to be true. Mine was the molex connections for the door optics. I had stuck my probe for MM in the female end and it spread them out so I took a pick and bent them back tight. They felt tight but wasn’t making connection. I know it sounds silly but it worked an ever since. Try it.

Are you talking about the connector where the door optics connect like when you need to replace the optics or somewhere else? Picture?
I will go try this, but like with other recent suggestions i am reluctantly optimistic. A lot of folks who have been helping me say the door is not the issue as i am not getting any bootup processes.

[jonbbrew]

can you take a close up picture of the plugs on top of the cpu housing. should be four of them.

Jim

Did the picture give you any ideas?

[jonbbrew]

SUCCESS!!!!!

Whew! This crazy journey is now coming to a close....While on vacation i just picked up another Splus that is clean and working, except for the handle...later project. The only thing left besides the wiring harnesses themselves was the power supply. As you can see in previous posts i did get help about how to meter the supply and it appeared it was working fine so i moved on.

The boards were fine and checked in other machines
Wrong chips were replaced
The molex plug was replaced
The display was replaced
Candle added to help with diagnostics

But low and behold, using the power supply from the newly acquired machine and it boots right up....I am still puzzled how it metered ok but was the issue. I am going to put the "bad" power supply in my new machine to confirm that it is bad and not just a connection issue somewhere when messing with it.

Thanks again all that assisted. I learned a ton from this process thanks to you along with losing some hair and gaining a few ulcers....hehehe...

Now in search for a power supply.....

[Jim]

Hard to believe that the power supply is bad!, you measured the correct voltages, 24 vac, 8 vac, and 7vac.  the only problem I have ever seen with the power supply was the fuse caps, the spring or lack of a spring would cause intermittent problems.

Glad you are close.

I have power supplies if you need one.

Jim

[Stayouttadabunker]

  About 40 Replys ago, I said the power supply was good.
His readings all checked out good. 
Something we don't know about happened between then and now.
Anyways, glad it's working now.

[RobinAK]

Yay!