VCR buying guide (S-VHS / D-VHS / Professional)

[NJRoadfan]

Yes, I've seen the "serviced" and "warrantied" AG-1980's on eBay and elsewhere from a joint called Southern Advantage at several hundred bucks. You'd figure that a shop specializing in AG restorations and even offering warranties would be a fairly safe bet. That's still a bite out of my retirement income. And frankly I'm just scared as hell of spending that much for anything used from eBay or Amazon. For every forum report of stellar performance you find three horror stories. But since my used under-$100 Pannies have, er, panned out fairly well, I keep scouring eBay for more 1996 models. Some sell for so little you can't trust them, especially since the seller's other items include little else but old dolls and kitchen tools. Better choices for PV-4500's and PV-4600's start a bit higher. But not every 4500 or 4600 is a worthy product, even new. There must be dozens of model numbers from that era, with scant info on most of them. Panasonic still posts user manuals, so that's my only source of information -- except for threads like this. It's still a shaky proposition: I'm not afraid of used Panasonics from a certain era, but I've been thru Yellow Pages from 6 New York and 4 New Jersey counties, and even Yahoo. There simply is no service for these things, even though Panasonic and some sources still list many parts for this stuff.

My AG-1980 was a big untested/as-is ebay gamble. Turns out it works perfect and was hardly used. It was also one of the last ones built (October 2001 going by the serial number).

As for the consumer Panasonics, have you scoured your local thrift stores? Those models are readily available at the thrifts around here in Northern NJ and usually for no more then $10 or so. Also, have you tried Mack Camera in Springfield, NJ? They still list VCR repair services on their site, and I had luck with them repairing my Sanyo Betamax deck in the past.

[sanlyn]

NJRoadfan, no I haven't noticed the shop you mention. I did check some NJ and upstate NY shops. From Long Island, they're a trek. I guess it's worth if for something that really needs fixing beyond a simple dab with a head solvent. Why the local shops around me are so awful is a mystery to me, and it's not just VCR's but anything in a/v that these guys don't get. Compared to these shops, BestBuy would be a better bet (no, I wouldn't dare). Servicing expensive pro gear is different, you find good shops in Manhattan and Queens but they don't want to twiddle with under-$1000 VCR's. The last good shop I found was a 65-mile drive to eastern long island, but he retired 4 years ago.

But I'll keep looking and take you up on the suggestion. I'm not opposed to taking a day trip (or shipping UPS) for decent work.

[NJRoadfan]

But I'll keep looking and take you up on the suggestion. I'm not opposed to taking a day trip (or shipping UPS) for decent work.

If you plan on shipping, lordsmurf recommended these guys: http://www.jotselectronics.com/

[sanlyn]

Thanks, NJRoadfan! I'll give them a call (It's a 2000-mile drive, though ). I don't know why I search the 'net on and off for months but never find these sites. I started to PM lordsmurf on this matter a while back, but I know he's a busy guy. Thanks to ls and to you for that tip.

[sanlyn]

If you turn off the AG-1980's TBC, do you also disable all or most of its DNR and color cleanup? I have external means of getting video thru a line or frame TBC. I just don't like the phony effects you often get from built-in TBC's on these vintage high-end VCR's.

[orsetto]

You can't disable the DNR circuit in the Panasonic AG-1980, its always active. This is a significant drawback to an otherwise fairly useful VCR. The DNR is very very strong, and as you say can have undesirable side effects (as with any other DNR machine). OTOH, the AG-1980 is the only TBC/DNR vcr that does allow disabling the TBC while the DNR remains active: this can be very helpful when you need the DNR but also need a more powerful external TBC like the DataVideo or AVT. Disabling the internal TBC of the 1980 avoids all potential for TBC conflicts. All these TBC/DNR equipped vcrs are a compromise in some way, you pick your poison based on your tapes.

The problem with the AG1980 today is that it was so ugly, consumer-unfriendly, and so incredibly expensive in its day that very very few wealthy dilettantes bought them as toys and then never used them, compared to a JVC 9000 series or the pricey recent DVHS models. The vast majority of AG1980s were bought by working pro event videographers who beat the crap out of them 24/7. While its not unusual to snag one now that is technically still "fully functional," most are not performing to their true potential and at minimum need some new caps in the PSU as well as tweaks to the transport. Many have loading slot issues. While they were designed to be easily serviced, VCR techs are all but extinct now, so restoring an AG1980 may be more difficult and expensive than anticipated. As someone else mentioned, there are a few AG1980 specialists like Southern Advantage who will sell you a new-old-stock or mint reconditioned AG1980, but their asking price is utterly ridiculous ($599-1199). If your budget range is $300-500, forget the AG1980 and any JVC SVHS: get yourself a much more recent DVHS like the Mitsubishi HS-HD2000U or one of the many JVC DVHS. The DVHS TBC/DNR is a better match for LCD and Plasma television displays.

[sanlyn]

I see pricey, allegedly fixed-up 1980's around, but some little voice kept saying it's inappropriate for what I'm doing. Keeping my eyes open for a decent DVHS. But practically speaking I think I'm in the consumer-grade class and should aim for some of the better Pannies from '96 or so. At least, there are more of those around!

[robjv1]

get yourself a much more recent DVHS like the Mitsubishi HS-HD2000U or one of the many JVC DVHS. The DVHS TBC/DNR is a better match for LCD and Plasma television displays.

I've always been curious about this -- how does the DNR on the DVHS decks differ from the JVC 7000/9000/Mitsubishi series? In terms of appearance that is. Do all of the D-VHS decks have the same amount of memory (2mb/4mb) for the DNR?

[sanlyn]

I don't know if they have the same amount of DNR/tbc memory, but some like the JVC 7600 have 2-MB. I've seen tests in the past showing that 2MB is more than enough on most machines. Much would depend, though, on how much processing and how many process phases some of those VCR's perform.

[robjv1]

^^ Yeah, I believe the 7000 series was all 2MB and I think the 9000 series was all 4MB, maybe with one or two exceptions. The SR-V101US is a 2MB machine (a continuance of the professional 7000 series and the last new model in the JVC SVHS DNR/TBC series as I recall). The JVC SR-W5U / SR-W7U are both 4MB machines. Not sure about the Mitsubishi or the DVHS decks.

[themaster1]

The more you have memory the more images you can process = heavy temporal filtering

The images may be stored in rgb (.bmp) or similar, noise is averaged over 1 or 2 frames

This is just a guess

The 1 million dollars question is what kind of algorithm they used

[NJRoadfan]

I've always been curious about this -- how does the DNR on the DVHS decks differ from the JVC 7000/9000/Mitsubishi series? In terms of appearance that is. Do all of the D-VHS decks have the same amount of memory (2mb/4mb) for the DNR?

JVC claims the HM-DH40000U has 6MB of memory. Regardless of that fact the TBC very is different. It can't be turned off for one, and it has a full continuous frame sync on output (like having an AVT-8710 built in). The deck also has the same LSI DiMeSion/DoMiNo chipset JVC's DVD recorders of that era featured. It can correct top-of-frame tearing which the old SVHS units can't seem to do and the tape stabilizer function only works with EP speed tapes (and with the TBC on unlike the SVHS decks). It can also be used as a pass-through TBC as all its inputs are processed through the TBC circuit. The later HM-DH5U and HM-DT100U may have the same system, but I haven't played with one.

[robjv1]

I've always been curious about this -- how does the DNR on the DVHS decks differ from the JVC 7000/9000/Mitsubishi series? In terms of appearance that is. Do all of the D-VHS decks have the same amount of memory (2mb/4mb) for the DNR?

JVC claims the HM-DH40000U has 6MB of memory. Regardless of that fact the TBC very is different. It can't be turned off for one, and it has a full continuous frame sync on output (like having an AVT-8710 built in). The deck also has the same LSI DiMeSion/DoMiNo chipset JVC's DVD recorders of that era featured. It can correct top-of-frame tearing which the old SVHS units can't seem to do and the tape stabilizer function only works with EP speed tapes (and with the TBC on unlike the SVHS decks). It can also be used as a pass-through TBC as all its inputs are processed through the TBC circuit. The later HM-DH5U and HM-DT100U may have the same system, but I haven't played with one.

Very interesting! I wasn't aware that you couldn't turn the TBC off on those units. I've always been sort of curious about the 40000U unit and almost purchased it's 30000U cousin, but changed my mind after I read all the bad reviews, but the 40000 is supposed to have none of those issues. It sounds like a very nice deck.

It wonder the 40000 it is built with some of the same components as the W5U/7U line, as those have full-frame TBCs instead of line TBCs (although it can be turned on and off) as well as the DNR circuitry and also correct/prevent the top screen tearing issue.

[JLG/JLG]

>If you plan on shipping, lordsmurf recommended these guys: http://www.jotselectronics.com/

I was just going to ask this question because my JVC SR-W5U seems to need repair and I've always had the worst luck with finding anyone who wouldn't just do the heads and the tape path and give it back to you, seemingly w/o even checking if it actually helped. I'm leery enough about shipping the thing once, much less getting involved in it going back and forth a few times, so I'd definitely feel better if there was a place that some others have had luck with. What's frustrating me is I feel like cleaning the heads should actually be all that's needed this time as it's giving me a couple lines of gunk/distortion/dropout, but I keep opening it up and nothing really comes off on the chamois stick and playback isn't improved.

[Acden]

This is a mirror of my official VCR Buying Guide posted at The Digital FAQ forum.
[B]

JVC D-VHS decks, which has a lot of the same features as the prosumer S-VHS line, but also has an added ability to cure VHS flagging, much like the Panasonic DMR-ES10 DVD recorder does on pass-through.

Can you suggest other Panasonic DVD recorder has the same function? For example, upped versions?
(like Panasonic DMR-E95H, ES-30 or others)

[robjv1]

The Panasonic DMR-ES15 will do it for sure, and the DMR-ES20 as well, but only on one set of inputs as I recall. That's it as far as I know for Panasonic models that are verified.

[Acden]

what "set of inputs" mean? (I need S-Video In -> S-Video Out, nothing more. What is "set"?)

Do you know how this function called? Or it is just the model of digital processor, doing this?

[manono]

There are two sets (red/white/yellow/S-Video) of 'In'. Only the first one works for the pass through TBC. For me it's on the back and is labeled as IN1. The other set is on the front and is labeled IN2.

I have an ES15 and it has S-Video.

I'm in NTSC land, though, and have no idea which models are available for PAL.

[Pinto007]

OTOH, the AG-1980 is the only TBC/DNR vcr that does allow disabling the TBC while the DNR remains active: this can be very helpful when you need the DNR but also need a more powerful external TBC like the DataVideo or AVT.

My Panasonic NV-HS930 allows enabling/disabling TBC/3D DNR independently.

I'm in NTSC land, though, and have no idea which models are available for PAL.

There are available the same models for PAL area.

[orsetto]

My Panasonic NV-HS930 allows enabling/disabling TBC/3D DNR independently.

Good to know, for those who need a PAL-format VCR. The many "semi-pro" Panasonic NV PAL models are difficult to directly compare to the NTSC AG models, as the PAL units have totally different transport mechanics and varying combinations (or complete lack) of TBC/DNR.

In NTSC format, the lineup was much simpler and clearer: there were only four models in a 30 year period, easy to differentiate. AG1950 was huge, rugged, very old, no TBC or DNR. AG1960 was slim, fragile, no TBC, weak DNR. AG1970 was immediate predecessor to AG1980, looks just like it, but weak DNR and weak TBC (although the AG1970 TBC is uniquely helpful with certain image defects, and TBC/DNR are both independently switchable). AG1980 was the final model, with strongest TBC/DNR (often too strong, but only the TBC can be turned off). AG5710 is ultra-pro version of AG1980 (no tuner or IR remote, includes pro edit suite computer connections and time code system).

Can you suggest other Panasonic DVD recorder has the same function? For example, upped versions? (like Panasonic DMR-E95H, ES-30 or others)

There were only three that had any significant pass-thru ability, and none were "up" models with HDD or fancy features. ES10 was first, with strongest pass-thru: if you need this feature, look for an ES10. The ES15 and ES20 had pass-thru correction capability, but weaker, not as good as ES10. Note "pass-thru" is not transparent: the signal is converted from analog to digital by the recorder, the output as re-decoded analog. You gain corrections from pass-thru but image quality is somewhat degraded, just as it is with an external TBC like AVT8710 or DataVideo. All "corrections" entail some sacrifice in overall PQ, unless you have access to a TV studio with $100,000 production gear (and even then, there's only so much you can do with VHS or Beta).

[manono]

I have a PAL Panasonic NV-HS860 with separate TBC and DNR buttons. I use only the TBC and denoise using AviSynth flters.

One thing I found interesting thanks to a tip from victoriabears here on this site, if you live in an NTSC country (like me in the US), but have a bunch of PAL tapes to cap and convert, a PAL VCR will work quite well if you just change the plug to a US one. I've done it for 2 PAL S-VHS VCRs now with no problems at all. No need for a voltage converter.