Problem with JVC HR-S9600U, drum seem to be inactive!
 

Hello,

Yesterday I cleaned vcr head of my decks that I will need for my project.

I did clean heads supposely knowing what to do and what to avoid.... (I also have the service manual for the HR-S9600U if digitalfaq is interested, it's 21MB big)

I cleaned my JVC HR-S7600EK, HR-S9600U and HM-DH40000U.

They were all playing tape well before...

Now the problem that I have with the HR-S9600U is that he load the tape but the drum don't spin...so after fews second he close in "flashing"mode...

My bad luck was that then I opened again the HR-S7600EK to compare loading mechanism, I discovered that the drum have to spin before the tape get in contact with the drum. I did a couple of try to compare if others things may been different in mechanism and finally the HR-S7600EK caught the same syndrome, the drum don't spin anymore...:mad:

This morning I was scared to open the HM-DH40000U to compare, but this one is stable, I mean the drum spin before the tape contact.

My observations raise many question! Did I misaligne something during the heads cleaning that need to spin the drum.

Before going to the repair shop (often they just don't know what to do beside changing parts) I would like to have your opinions if it can narrow the problem...

I read several stuff about voltage instabilility...be since it happens after the cleaning I suspect that this is a mechanical problem...

Maybe something related to gears

Thanks in advance for you knowledge!

Yes, please multi-part RAR the file down to two pieces of about 12MB each (12m).
If needed, instructions on that process has been added here: http://www.digitalfaq.com/forum/news...html#post19597

That's as good a guess as I could come up with. It's worth investigating further.
I cleaned two VCRs this week, but have not yet plugged them back in. Stuff like this is always a worry.

Thanks for the answer...

Also maybe I generated a short-circuit.

From this site we can read

Actually in my quest to find a solution I did change the HR-S9600U 5 pins ribbon for the HR-S7600EK ribbon to see if it was a electrical issue. I may have forget to unplug the deck then I got this bubble!

That seem more plausible!? (Since I didn't touch the 5 pins HM-DM40000U ribbon)

I need to find a wait to reset to verified!?

Thanks

Okay

I got 12MB and 9.21MB rar file. According to premium member specs. I am allow to 16MB?

How I proceed to attach both?

I got this manual from Owner-Manuals.com that was the cheapest price I can found...

The first part of the manual is the user manual then the service manual begin...

I've amended the instructions: http://www.digitalfaq.com/forum/news...html#post19597
The first attachment is here, and that's good. The second one just needs to be added to the above post.
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Having the unit plugged in while cleaning it may have caused this, but that's really just a wild guess.
I honestly cannot say for certain what may have caused this. You've already done a good job of narrowing down possible causes.
I don't really have ideas on solutions either, aside from what you've posted, including the idea to just take it to a repair shop.

Sorry I though it was 16MB max for my account!

The more I think about my problem the more I am convince that I did shortcircuit with the ribbon.