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Andrew ; It's not a coil but a stepper motor. Step by step . The translation might be incorrect. Midibob; No, we didn't explore that idea. If you want to tell me what to look for, feel free. Thank you, Gentelmen

That would be logical, maybe it needs digging a bit deeper. Thanks for the manual, nothing unusal there so I think we can discount a switch issue. Going back to the reel sensors I can't remember if I asked you to confirm whether the correct sensor signals were actually arriving at the 6821 (IC5)?

ah ok, my reasoning was if the 'hold' lights up it it showing the reel it thinks is faulty so if its the hold for reel 1, then its reel 1 it is sensing the fault on

Oops; two photos aren't uploading properly. But you can still download them.

Hello. Yes, I tried another roller assembly. I tested the receivers. They respond like a switch when the light passes in front of them. I'm willing to test again; maybe even replace them. The same error occurs whether the roller assembly is connected or disconnected. I have the manual for my machine and I'm sure it's the correct one. It was included with the manual. I also have documentation for the rollers. If needed, I can make another video. Thank you.

I reckon he's going to be busy now!

I think the reels never spin (although they are powered) as it alarms as soon as the start key is operated. I think he's tried another working reel deck too? I've had a thought this morning which is probably nonsense but I'm wondering if a switch or a link (somewhere) has to be set, like a meter sense or similar. Clutching at straws here as you can tell. Pity there isn't a manual for this one as it might be mentioned in the alarms section.

I managed to find a chap to redraw the damaged glass, looks good in the thread, just waiting on the actual decal to be printed and sent, he is also doing the button decals I'm missing so well happy link to thread https://www.ukvac.com/forum/threads/small-glass-art-reproduction.87391/

I think its more likely to be the opto receivers on the reels, that are notoriously unreliable with the age they are

Good evening. I am as disappointed as you are. 🙄

OK that looks good. Back to the drawing board??? (reprendre tout à zéro)

Good morning, gentlemen. Thank you so much for your patience with this problem. I really have. I took the requested measurements, and here they are. The photo shows what I get with the oscilloscope on each output when I activate a switch. The diagram shows the voltages and the corresponding switches. Note : The voltages are slightly different because I used a different multimeter. Thank you for your help.

Thanks Andrew, this one is a real head scratcher for sure. I doubt it's got anything to do with the switch matrix but I'm really just trying to eliminate everything I can think of, and anything I can't?

Welcome to the site. Enjoy your time here. You sould also have a look at this website. https://www.desertislandfruits.com/forum/index.php

Welcome to the site. Enjoy your time here. You sould also have a look at this website. https://www.desertislandfruits.com/forum/index.php

Welcome to the site. Enjoy your time here. You sould also have a look at this website. https://www.desertislandfruits.com/forum/index.php

Welcome to the site. Enjoy your time here. You sould also have a look at this website. https://www.desertislandfruits.com/forum/index.php

Welcome to the site. Enjoy your time here. You sould also have a look at this website. https://www.desertislandfruits.com/forum/index.php

Welcome to the site. Enjoy your time here

Welcome to the site. Enjoy your time here.

Welcome to the site. It would be great if you could upload some photo's of the machines you own

Hello kevin. Welcome to the site. It would be fantastic if you could uplopad some photo's of the machines you own.

with all switches off, and nothing connected to the orange and black 15 way switches connector, all inputs to the 4049 will be high (near 5v) so all outputs of the chip will be 0v. when a dil is on, it is allowing a pulse through to the input of the ic, this you cannot see on a meter, on a oscilloscope you will see it, the output on the chip from that line will be a exact inverted waveform

Thanks for letting me join. Got a couple of fruit machines, a crazy fruits club and a Thunderbirds club.

Good evening. I misunderstood. Sorry. it's sometimes the weird translation Do I need to remove the DIL switches SW1 and SW2 and take the measurement again? or SW1 et SW2 position ON ? Thank you.