Sony VO-9600 wont stop?
 

I have this sony umatic 9600 right reel keeps spinning none stop. Even if there is no basket in the machine the supply reel is spinning fast. On start up the supply reel spins. I'm hoping someone has seen this before. I do not get an error when hooking it up to monitor.

Best guess is dried grease that levers and pulley are not returning
To there correct position.

Depends on the model what it'll do in certain situations. I only just recently got into U-Matic myself and they seem pretty cool. My only issue is I don't have any actual tapes that I need to convert haha.

On certain models, it could be normal that the one reel turns if the basket is disconnected electrically and there's no tape in the half loaded position.

So I guess the question is, did this machine used to work and then all of the sudden stopped working, or is this just your first testing of it as a new machine acquisition and this is just what it is doing?

You might also try physically blocking the light path tape end sensors (should be easy to identify given they are regular red LEDs) which there should be two and see if that causes the reel to stop turning. Could be those end sensors are out of alignment and their path may not be getting appropriately blocked when the tape is put in.

I thought about putting a U-Matic repair/refurb service out there, but shipping such heavy machines around doesn't seem like a great idea due to shipping charges and potential shipping damage both ways. So far, I'm 4 for 5 in getting as is/unknown condition machines going.

The one I did not get working I'm pretty sure had a mouse nest in it and also probably some mouse chewed wires. I fixed the chewed wires I could see, but there could be more. It also had a cracked PCB which may have happened before or after shipping since it didn't have a bottom plate when it shipped (probably due to being rack mounted at some point for cooling?) I'm going to go out on a limb and guess these are not the causes of your problem haha.

Attachment 18702

No it does it if a basket is in or not. I do not think that is supposed to happen. Atleast I have never seen it happen before on any other decks.

But does it stop if you physically block the end sensors? Different models will do different things if not everything is connected appropriately (such as the basket being removed) or if the sensors aren't seeing what they are supposed to in a given loading state. I can't say for sure I've seen what you're describing, but it sounds similar to what others have described when either something was disconnected or a sensor wasn't working or dirty.

I tried covering the leds, I cleaned them.. the supply reel still just spins like crazy.

I'd probably look at the servo board next if that's the case. For that to happen, the solenoid has to pull the idler to that side as well as the reel drive motor spinning. The drive motor spinning by itself without the solenoid pulling on it won't drive either side. Did you say it was working fine and this just happened out of the blue, or this is just initial testing when you don't really know when it worked last?

Yeah this was just initial testing. No idea when this worked last. I will see if there are any micro fuses on the servo board.

well I was wrong. I thought it was the supply reel was moving non stop. It is actually the idler tire thats moving non stop.