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I've read the threads re when the digital jiggers comes in playing back D-VHS tapes, that you need to clean the JVC D-VHS VCR; and then that no, its the pinch roller, or that the decks have a defect which shows up after so many hours of use. No opinion on that. I am just dealing with my own JVC D-VHS VCR that I've had since late August. And which I'm using even more recently thanks to getting my Samsung SIR-T165 a few weeks ago and doing some HD recording, not just a bit of analog OTA recording as I was doing before. And watching a few D-VHS D-Theater movies a week, too!
As background, I have the JVC connected by toslink and component video;
and the 165 connected by RGB and digital coaxial.
About six weeks ago, playing a D-Theater tape, I started getting those digital nasties making the tape unwatchable. I got one of those Maxell VP100 non-abrasive dry cleaning tapes and no problems thereafter.
I've repeated using the Maxell cleaning tape about every twenty hours of VCR use.
A few weeks ago, I started noticing a few of the digital nasties/glitches in playing back a D-VHS tape I recorded via 1394 with the Samsung SIR-T165.
I simply used the Maxell cleaning tape and all was fine.
The other nite, we watched "Spy Game" D-Theater pre-recorded D-VHS tape. Had to watch direct via JVC component video (as I have 165 hooked up only via RGB, and the 165 will not play D-Theater encoded tapes out its RGB video, only out its component video). Quickly we started getting the digital nasties. DARN! As a tweaker I think the unthinkable. I stopped the tape and I turned off the 165, and I changed the channel/input on the JVC from where I had last left it, at "I-Link" input, to an OTA station. Would you believe then I put the movie back on and it worked fine thereafter!!!
Tonight, I recorded "American Dreams" in HD with the 165-JVC combo.
I started playing it back throught the 1394 or I-Link. I had the JVC channel on the I-Link input. I started getting digital nasties. I turned off the 165
and changed the channel on the JVC, both to an OTA analog station, and to simply a different video input like "F-1", and playback was fine thereafter.
I then found that I could leave the JVC on whatever channel or input and the D-VHS tape playing therein would playback through the 165 (apparently, you only need set the JVC to "I-Link" if you are recording from the 165 manually, not using the timer). I then set the JVC channel to "F-1" and then I was able to playback the show via the 1394 through the 165 no problem.
I just wonder if there's something more going on here than the pinch roller!!!??? Could these digital dropouts/jiggers be more than deck cleaning or pinch roller, but instead be related to jitter over the 1394 cable??? Could that jitter somehow be exacerbated by having the JVC tuned to the I-Link input on playback????
Me, I'm not engineer, I don't pretend to understand this stuff. But there seems to be something funny goin' on here.
Other folks having the digital dropouts/jiggers problems with their JVC deck should try some of the inane things I noted above and let us know if it makes any difference??? Another thing to try (I haven't yet) is disconnect the 1394 cable on playback and does that make any difference???
I know, the above thingamagics happening are likely only happenstance, luck of the draw. But you never know!!!
Remember back in early 80's digital audio was to be "perfect sound forever". Well, it wasn't. Now I appreciate folks with Mitsubishi D-VHS decks haven't been complaining like many with the JVC D-VHS deck.
But maybe its something peculiar to the JVC in how they implemented the firewire leading to these dropout/digital jiggers!!!! ????????
As background, I have the JVC connected by toslink and component video;
and the 165 connected by RGB and digital coaxial.
About six weeks ago, playing a D-Theater tape, I started getting those digital nasties making the tape unwatchable. I got one of those Maxell VP100 non-abrasive dry cleaning tapes and no problems thereafter.
I've repeated using the Maxell cleaning tape about every twenty hours of VCR use.
A few weeks ago, I started noticing a few of the digital nasties/glitches in playing back a D-VHS tape I recorded via 1394 with the Samsung SIR-T165.
I simply used the Maxell cleaning tape and all was fine.
The other nite, we watched "Spy Game" D-Theater pre-recorded D-VHS tape. Had to watch direct via JVC component video (as I have 165 hooked up only via RGB, and the 165 will not play D-Theater encoded tapes out its RGB video, only out its component video). Quickly we started getting the digital nasties. DARN! As a tweaker I think the unthinkable. I stopped the tape and I turned off the 165, and I changed the channel/input on the JVC from where I had last left it, at "I-Link" input, to an OTA station. Would you believe then I put the movie back on and it worked fine thereafter!!!
Tonight, I recorded "American Dreams" in HD with the 165-JVC combo.
I started playing it back throught the 1394 or I-Link. I had the JVC channel on the I-Link input. I started getting digital nasties. I turned off the 165
and changed the channel on the JVC, both to an OTA analog station, and to simply a different video input like "F-1", and playback was fine thereafter.
I then found that I could leave the JVC on whatever channel or input and the D-VHS tape playing therein would playback through the 165 (apparently, you only need set the JVC to "I-Link" if you are recording from the 165 manually, not using the timer). I then set the JVC channel to "F-1" and then I was able to playback the show via the 1394 through the 165 no problem.
I just wonder if there's something more going on here than the pinch roller!!!??? Could these digital dropouts/jiggers be more than deck cleaning or pinch roller, but instead be related to jitter over the 1394 cable??? Could that jitter somehow be exacerbated by having the JVC tuned to the I-Link input on playback????
Me, I'm not engineer, I don't pretend to understand this stuff. But there seems to be something funny goin' on here.
Other folks having the digital dropouts/jiggers problems with their JVC deck should try some of the inane things I noted above and let us know if it makes any difference??? Another thing to try (I haven't yet) is disconnect the 1394 cable on playback and does that make any difference???
I know, the above thingamagics happening are likely only happenstance, luck of the draw. But you never know!!!
Remember back in early 80's digital audio was to be "perfect sound forever". Well, it wasn't. Now I appreciate folks with Mitsubishi D-VHS decks haven't been complaining like many with the JVC D-VHS deck.
But maybe its something peculiar to the JVC in how they implemented the firewire leading to these dropout/digital jiggers!!!! ????????