So a re-lube and exercise, the owner will be happy :-D Motors often lock up, due to lack of use, as you said. I have an old ITT Studio 720 cassette recorder. When i came to use it the motor had locked up. There is a pcb with a motor drive circuit, lucky that the circuit limited the current.
@Gasnar
Жыл бұрын
Thanks for sharing your process. So cool to learn along side you!
@ronsmith2526
Жыл бұрын
I can’t believe the little plastic tape door isn’t broken on this one. The ones at my work and my own personal one broke decades ago.
@GabrielLago1
Жыл бұрын
Excellent repair!
@markmarkofkane8167
Жыл бұрын
When title showed "dvcam" I assumed it was a camera-corder. Nice!
@12voltvids
Жыл бұрын
Dvcam is a flavourful of dv. Wider track and faster tape speed. Same codec so can play dv format tapes. Consumer dv won't play dvcam recordings.
@analogvideochannel4612
Жыл бұрын
@@12voltvids I believe many of the Sony consumer camcorders are capable of playing back dvcam format recordings on minidv tapes.
@markhopkinsphoto7257
10 ай бұрын
Great to see these decks being used still. I tried using mine the other day after many years on no use. I have low hours on it-probably less than 50 but after around 10 years or more of no use I am having issues ejecting the tape. I was able to play and eject several tapes then after around the 5th tape, it didn't want to eject anymore. The tray comes up to eject then tries to eject the tape but gets stuck when trying to push the tape out. You think it just dried up somewhere?
@guitareveryone
Жыл бұрын
Great video as always Dave. Quick question, are you still using the same film scanner and other than the take up motor issue has there been any problems with the shutter? It appears it’s getting a lot of use.
@12voltvids
Жыл бұрын
Still using it and dropping the film into a box as the take up motor quit years ago.
@GabrielLago1
Жыл бұрын
@@12voltvids I´m doing the same too.
@guitareveryone
Жыл бұрын
@@12voltvids thanks for getting back to me Dave. I guess those scanners can take a lot of reels without any issues with the film gate. I took your advice on using a box to take up the film. I have the Magnasonic scanner and although the take up motor is fine, the film doesn’t suffer from the jitter of the take up reel motor pulling on the film. Especially when a splice in the film passes through the gate. I’m hoping the Magnasonic can keep going as long as your Wolverine. Thanks again.
@12voltvids
Жыл бұрын
@@guitareveryone wolverine over 700 reels now most big ones.
@KylesDigitalLab
2 ай бұрын
Is the mechanism the same between the DSR-11 and portable DSR-50?
@ThatOneTruckGuy
Жыл бұрын
Used to own a old panasonic minidv camcorder years ago, stopped using it as it would eat tapes CONSTANTLY.
@michaelblack5011
Жыл бұрын
nice quality
@misterdannyklein
3 ай бұрын
Are there any other accessible lubricants that can work? I've had trouble finding the Molykote pg-641 grease that I see in the video.
@12voltvids
3 ай бұрын
I use mg chemicals white lithium grease. The molykote came with replacement parts 30 years ago. I had a bunch left over and used it all up.
@KylesDigitalLab
2 ай бұрын
Use silicone grease if it has plastic, if it's just pure metal you can use 3 in 1 machine oil
@Jrer241067
Жыл бұрын
Advice. How easy is it to add balanced outputs to a cd player that only has RCA outputs. Is it possible to tweek the laser focus on old cd players to enable them to read / play CD-R/CDRW discs burned on computer. To extend the life of Vacuum Florescent displays on rare old cd players, would it be possible to add a switch to cut feed to VFD, without causing issues with general operation. Chears
@12voltvids
Жыл бұрын
2 op amps. One using + input and other -. Of just gey a transformer 600ohm to 50k or whatever the output is. Balanced output is totally unnecessary. It is only useful for sending over long cables. One wire in phase the other out of phase. Any hum that is picked up through induction will have same phase on both conductors and be canceled out at the other end. Does nothing to improve sound.
@Jrer241067
Жыл бұрын
@@12voltvids thanks for that. Regarding the VFD isn’t it just a case of cutting the common feed to display. Therefore the heating wires would still be active but the current to drive the segments absent, till restored(by Switch) then illuminate again??
@Jrer241067
Жыл бұрын
Regarding reading TOC and playing CD-R or CDrW?? The player was manufactured between 1986 and 1993 before DVDS and CD-ROM drives were widely available, you mentioned on some of you’re videos this was to do with different reflective properties of CD-R and CDrW which caused certain machines to baulk at reading. At this time there had not been legal revisions to copyright infringement, so could it be some manufacturers played safe ,and much bigger companies,like Sony were more bullish, being confident that should a case be brought against them , they would defend it and win. ??! Thanks 👍👍
@12voltvids
Жыл бұрын
@@Jrer241067 Cdr and cdrw operate completely differently. Cdrw operate as a phase change to the reflected laser. Cdr use a dye that is burnt with pits and lands. Where the dye is burned the reflective surface reflects. Where it isn't the dye absorbs the laser light. On stamped CDs the pressed pits change the focus plane so in or out of focus reflection register as 1 or 0. The reflectivity remains constant. Cdr typically requires a slightly stronger laser as the reflectivity is lower. The wavelength of the laser is also important. That's why early DVD drives with a red laser can not read CDR. They can however read cdrw because a DVD drive can detect the phase change of cd-rw. Why? Because DVD from the start was designed as a dual layer format and that is how it reads one layer. One is conventional pressed disk with the focus shift and the other phase shift so the player can focus on one and ignore the other. So it is able to read cdrw as it uses phase change.
@Jrer241067
Жыл бұрын
@@12voltvids so trying to fault find,using knowledge from watching you’re videos. Have two Technics SL-P1200 cd players( professional) models. 1 worked, 1 had faults. Have on bench. Display works and does self test. Laser works and focuses. No spindle drive movement ,and liner motor wizzes to start of disc on turn on,but coil BUZZES and gets quiet hot,which doesn’t seem normal. I think I need to trace voltages,and compare with mana factor spec,yet the engineers service manual doesn’t give this. Could you let me know where you obtain detailed circuit diagrams you often use to diagnose equipment you service,and possible pinpoint areas to focus on to diagnose. Any help would be greatly appreciated. Thank you
@MUSICADELOSY-rx4nx
9 ай бұрын
I have 2 Sony DSR-250 DVCAM cameras and a DSR-50 DVCAM portable deck not that there’s much use for them but I have always been a fan of video tape formats since the Betamax days I could not even dream of buying one of them when they came out now they are very cheap to buy and still work 23 years later I was wondering why I hardly see you do repairs on the DVCAM equipment I guess it was a professional thing not really for the home user.
@12voltvids
9 ай бұрын
Never see dvcam. That's was Sony's pro version of DV. Identical except for wider tracks and faster tape speed. I ran professional DV here which was a pro camera but used the standard DV speed. Remember the data format was identical. Same as digital 8. It had locked audio vs the consumer unlocked audio but professional DV had locked audio as well and was compatable with consumer players.
@MUSICADELOSY-rx4nx
9 ай бұрын
Thanks Dave, Great job getting that deck to work as always somehow you manage to get things fixed most of the time dvcam broadcast cameras were nice specially how Sony managed to get them to use MiniDV and the larger dvcam tapes in the same loading system.
@12voltvids
9 ай бұрын
@@MUSICADELOSY-rx4nx it really wasnt that difficult. The betacam decks also worked with larger tapes. Dvcam however wasn't a true broadcast system as it used the same 4:1:1 color space. I have only seen a few players over the years.
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