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Part 2 of testing Digital-S (D9) JVC BR-D750E and work on Sony EV-S550E Video8.
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- เผยแพร่เมื่อ 2 ส.ค. 2024
- Part 2 of testing a JVC BR-D750E, a professional Digital S or D9 format video recorder.
This time we have a tape, and we attempt to carry out a digital capture via the Firewire connection.
Also part 2 of working on a Sony EV-S550E Video8 recorder which had a power supply fault.
Audio and video transfers: www.video99.co.uk/
Please support us on Patreon / video99couk
or Paypal to colin@video99.co.uk
Music “Let It Run” with permission, copyright Cristie/MacFarlane.
Sorry I do not offer an audio or video equipment repair service.
00:00 Intro
00:15 D9 tape and video capture
04:11 Work on Sony EV-S550E
11:38 Conclusion
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Digital-S cartridges are very similar to W-VHS, a high-definition analog component video format with PCM digital sound. It could be seen as a digital version of the former. W-VHS was actually a very good format, comparable to professional analog formats which were common at the time but in considerably higher resolution (1035 line interlaced), and was sold in a limited extent on the professional market in the US.
Hi Colin. I worked on an EV-S550 a few months back. Boy, did it fight me all the way. Problem after problem. The power supply had the usual leaky capacitors. But I had a strange problem with only one of the video heads were working. So in pause there would be one clear frame, then the next frame was no signal. Turned out to be leaky SMD capacitors on the video head amplifier board(in the metal case at the rear of the mechanism). I replaced them and not only did the picture returned, but the PCM audio returned.
What Sony did to Betamax with the Betacam format family is that they made the Betamax tape the S size cassette, and because the S size cassettes are too small for studio use, they made an L size cassette with the Betacam SP format. They also had to use a metal formulation of tape and better quality rollers for those, plus a higher quality video source with the tape running at a much higher tape speed. Later on, Digital Betacam, Betacam SX, HDCAM, and MPEG IMX used the same formulation of tape as Betacam SP, except HDCAM SR, which uses a higher particle density formulation of videotape. However, Betacam and Betacam SP had either 30 minutes on an S size cassette, or 90 minutes on an L size cassette. Digital Betacam, HDCAM and HDCAM SR, however, have either 40 minutes on an S size cassette or 124 minutes on an L size cassette. Betacam SX and MPEG IMX, however, were a different story. The S size cassette can hold up to 62 minutes, and the L size cassette can hold up to 194 minutes on Betacam SX. As for MPEG IMX, it had 60 minutes of video on an S size cassette and 184 minutes on an L size cassette.
hi syopped doing any 8mm tape decks as they can be a right pain to fix love the brown v2000 decks with the A/V
STOCKETS
Nice to see that the Digital S machine works so well. Are you planning to do some more experiments with it, like making a test recording? Too bad about the Sony Video8, but indeed, it's not good enough to justify lots of repair work.
I wasn't planning on making a recording with it, but I suppose I might if I get time.
I know that an Italian TH-camr Davide Ferrari (now dormant) also has the JVC BR-D750E Digital-S VTR.
I have two of these I got from a university, through this video I discovered one has SDI the other one doesn't. I was able to find blank tape finding prerecorded media seems near impossible and none of the sources I put into it don't seem to record to that tape.
Did it look like it was making a recording, but just not put anything on the tape? I wish mine had SDI.
I believe that D9 uses the same codec as DVCPRO 50, just recorded to a different physical tape format, so it may be possible to do a FireWire transfer between the two. Also, you could possibly use a DVCPRO 50 Machine with SDI output to convert FireWire output from the D9 into SDI since the D9 cannot output SDI directly. What were JVC thinking of producing a professional digital machine without SDI?
I remember reading somewhere, I cannot remember where now, that JVC we’re developing a HD version of Digital S, but of course it never happened.
The trouble is that Firewire transfers DV, which is half the datarate of DVCPRO50 or D9.
Thank you for another interesting and entertaining video, I have learnt so much from your videos. I do have a problem that you have not covered!,
I am currently doing up a Umatic 3/4 inch a Sony Vo 5800PS that has got stuck in rewind, I have tried everything I know but cannot free it, any ideas
Would be appropriated . Colin Perth. Western Australia
I do mention this in my video th-cam.com/video/4fQr4W4jMjw/w-d-xo.html
If it's stuck in rewind them the supply side optical tape sensor is probably set up wrong. So it's seeing light as though it is shining through the leader tape at the end of the tape, and it thinks it needs to rewind to get away from the tape end. Sometimes these sensors can just get knocked out of alignment so it might be looking over the top of the tape, it may be a simple tweak to get it back into place. Remember the supply spool is the right side of the cassette on this format. Put tape in, switch off power, examine opto sensor alignment. They are easy to get at, on the top side of the deck of course.
@@video99couk Thanks I will look at that tomorrow
Best regards
Colin W A
What are you doing to capture video out? I have one of these machines at my office and am using an EyeTV 2.5 capture card and when trying to capture video, it's a bit pixelated
Capturing with pure digital route from the JVC with Firewire.
Would love to know a tutorial. Is there a way to get native video/audio off these tapes without waiting for them to play all the way through like a VCR?@@video99couk
I have a BR-D80U and don't see firewire out?@@video99couk
I have its big brother the JVC Digital S BR-D85U and it has less than 400hrs on the drum. Have no clue what to do with it these days as HD is king. Is there any reason to hang onto this? I have a whole box full of tapes.
Does that have the SDI option? I would be interested if so!
@@video99couk unfortunately no. It was used in a church studio but sat mostly unused
I had a miniDV deck that had a similar problem with the transport/guide pin things not moving into the correct position due to one of the guide path studs (sorry about the poor terminology lol) that had popped out of the guide - I suspect during transport as there were a few other things misaligned. Strangely it still played but had problems rewinding and unthreading. I literally popped the thing back into the guide and it’s been fine ever since.
Alas I couldn't quite get it reassembled properly, I certainly tried. But with the lack of picture too, there were other issues with this deck, probably capacitor failure somewhere.
@@video99couk in my case I think I was just lucky. Love the channel btw, very helpful info and I’m in awe of your studio!
Colin, does the cassette shell on the Digital-S tape look the same as the W-VHS cassette shell?
I've never seen a W-VHS shell to compare it.
@@video99couk Well, I had checked VCD Plus' livestream, and sure enough, the W-VHS tape uses the same cassette shell as the Digital-S.
Hi i have a sony EV-S550E Video8 DEAD, board looks ok,just bad caps leaky and open,would these cause no power at all to the machine.tia.great vids by the way
Yes, no results can be due to bad capacitors, usually in the PSU can elsewhere can cause a failure to boot on many machines too.
I ALLOCATE JVC VIDEO DVHS. THEY IS THE HIMSELF WITH Digital-S (D9) ???
Hello Colin
I’m currently working on a EVS1000 which has strange behaviour after replacing all the caps. The mechanism, which is the same as the EVS550 just goes in lacing position right after powering on and don’t understand why, all the gears are correct timed and didn’t touch the mechanism in any way. I checked some voltages on the two white connectors of the power supply and on pin 2 connecter 1 it should be 5,7v and I got -20v so if you have any ideas,or anyone that will read this, can give me some advises I will really appreciate that.
Yes in fact I worked on another EVS1000 and the mechanism is a pain in ... to re time after that little pin goes out of its place.
Cheers.
Many greetings from Paris
The last time I got deeply involved in a EV-S1000E, it didn't end well. The symptoms sound like mode switch trouble, so you could look at cleaning that if you can find it.
@@video99couk
Hello again Colin
Concerning your evs 550 video problem, maybe you should check the ribbon withe cable that goes from the side of the head amp to the mechanism board, maybe the some contacts are broken. I made a photo but can’t send it.
'Low cost' component digital S recorder £6950+VAT. Interesting sales listing terminology!
Yes, I thought that! Cheaper than Digital Betacam I suppose.
Did you have to discharge the capacitors first before dropping the pcb into a sonic cleaner? I'm sure 12voltvids will give up too since it's a video8, not a hi8 machine, not worth the effort.
No, any residual charge would have been long gone by the time I came to clean the PCB.
What are you going to do with the Sony EV-S550E? Throwing the machine away?
Probably park it in the store room in case another comes along and I could make one from two.
@@video99couk OK. You'll park the S550E in the store room just in case an another one of those S550Es arrives and you could make from two EV-S550Es to one fully-working EV-S550E. Fair enough.
It's a shame that you went to the trouble of repairing the switchmode supply and the deck has a silly fault.
Hmm you pushed the pin back in but there is no way to know if something is missing or out of place.
I dont know if 12voltvids would of seen such a machine when he was in his original works place.
I would stick it to one side, then when you feel you need some pain in your life, have another go lol :-D.
I think I just put something together wrong but it's very fiddly, I missed out some of the messing about with tiny parts but there was plenty. Had the machine produced a picture, I would have probably tried again, but there's another fault too.
Hello Colin
Underneath both cam gears there is a spring that might have got out of its groove, same as the blue gear in a Sony vhs vcr, that’s why the arms or levers can’t get to the fully laced position. For this you must disassemble some of the mechanism, it’s not that difficult for someone as accurate as you.
Greetings
Could ya send me the video transfered from the JVC BR-D750E?
Probably shouldn't, the content probably belongs to someone. I bought the tape on eBay.
@@video99couk Someone? Who is it?
It would be interesting to try drilling S-VHS or D-VHS tape to make it work with the D9, but I understand that there's no practical reason for you to bother trying recording on that thing, especially on tapes not designed for it.
D-VHS should work, apparently.