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...
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!