Panasonic PVS7670 SVHS VCR has a few problems

[@dege13]

I really appreciate that you explain why you are doing each thing you are doing and why you are doing it. It really helps us learn!

[@richardsmith2721]

I'm in my 50's and when I think of something 25-years-old I think of something made in the 60's or 70's.

[@stevenmann9769]

Me too!!

[@MrChrisRP]

Mid 40s, and a comparable result here too, accounting with some mathematical function for the age difference, with approriate variables for me. heh

[@zx8401ztv]

As the capstan is worn out, the tape will wander and the tracking changes, no surprise really. A tight ass owner!.

[@video99couk]

30:54 The SVHS machines which do fetch good money are the models with a built in TBC.

[@speed_rider362]

This mechanism has very sensitive tape end sensors. Maybe it would rewind and fast forwarded better if the top cover was on. My Panasonic NV-HS960 does not even want to play when open and you shine a light in it. Or it might be a stiff clutch. It makes sense when used this much... Edit: Yeah, I just heard the gringing noise - basically the whole underside needs to be replaced. I"ve bought a not much used NV-FJ622 from a thrift store for parts.

[@enriquelabarda4220]

Édr

[@Lightrunner.]

Nice repair video. Ohh the good old time i miss😢

[@MrChrisRP]

Near the end of the video now, and from a mechanical perspective, it makes a lot of sense that if you had to fix the drum then you probably have to fix another mechanical part, hence where I just paused the video (28:42) - maybe it was stored in too dry or humid of a condition or whatever can accelerate mechanical degradation.

[@12voltvids]

Or had the sh1t run out of it.

[@Oldgamingfart]

I had a supply reel opto go on an old JVC, which lead to similar painfully slow rew/ ffwd. Back when you could still easily order them!

[@12voltvids]

I suspect the optical reel sensor on the supply side. The motor bearing is my big concern and i don't know if the owner wants to do anything. He basically brought it to me to test. Well it has a few issues and has tons of hours on it. If I can find a sensor I might change it.

[@CanizaM]

I've had success with thick grease on dry and worn bushings.

[@Jammerk40]

Dave I have one of those and when I put it the box all was working great but it's been in the box I might say 20 years ago it had no issues all the fast forward worked and rewind play etc. Would you like me to send it to you to see if it can play still and it might need an alignment because I sent it out when it was new because the tape wasn't tracking right so they did an alignment and it worked very nicely but sometimes had crackling in the audio!

[@terry.chootiyaa]

*Is it OK to replace a 120uf 25v capacitor with a 220uf 25v in a svhs video power unit without any issues?* 😐

[@mmichaelnowell1512]

Down here in Olympia wa. I’ve picked up 3 perfect working Panasonic vhs like new for $6.00! With remotes ! Not bad😅

[@jamesbean2437]

Hello, 12voltvids. I have a question to ask you, I have an LG VCR that needed tape bath alignment. So I watched your video on how to align a VHS tape path alignment without using a scope, and I aligned the tape guides using a CRT television to get a good picture. However when playing back a VHS tape sometimes I would find lines or a crease just before the bottom edge of the tape. So I wasn’t satisfied that the tape guides were aligned properly however, it would play a good picture. So I borrowed a Samsung VCR with perfect tape path alignment and I am planning on recording a colour bar video from KZbin onto the VHS-C Tape by playing a colour bar video from KZbin on a smart tv that has KZbin, and plugging the Samsung VCR into the smart tv and recording it onto a blank VHS-C Tape using an adapter, as that is the only tape I have to record on. And I am thinking to play back the colour bar tape into my LG VCR to be certain if the tape guides still need adjustments. I just want your opinion on this. It’s hard finding a colour bar video on KZbin however, I found 3 but I don’t know which video to use to record a couple of minutes of it onto my VHS-C Tape. There is a video with multiple colour bar segments on it and I don’t know what to record on my VHS-C Tape I was wondering if you can see which video I should use and record to my VHS-C Tape, so I can use that VHS-C Tape to see if my LG VCR needs the tape guides adjusted. Here are 3 KZbin links to 3 colour bar videos, (the first link has multiple colour bars on it)… 1st link. kzbin.info/www/bejne/gHXUgqF5Ypdpr8U 2nd link. kzbin.info/www/bejne/l6rJYqaPnrN_nrM 3rd link. kzbin.info/www/bejne/omXFdYmnYtODY5I Thank you so much. 👍 Kind regards. 😊

[@lobsterwhisperer7932]

I have 6 VCR's and wanted to playback an old tape because i was feeling sentimental, but none of them work anymore. There has to be someone in Sydney Australia that can fix these old VCR's.

[@12voltvids]

Good luck.

[@aronslegogbcs1057]

im in victoria australia and i fix vcrs

[@speedyboishan87]

Hi Dave i played a brand new NTSC VHS tape on a JVC SVHS VCR and it spliced the leader so i taped it together i am aware most VCR's that claim to play both PAL, NTSC tapes have issues playing back an NTSC tape although it claims it can. So annoying i now use a Multi System PAL, NTSC VCR from Panasonic, no more of this JVC crap.

[@austinthevhsvideogamelover5265]

A FEW times the bearing sounded normal when you ejected the tape. But all other times it made that loud noise when failing to ff or rew.

[@austinthevhsvideogamelover5265]

The time you ejected it at 31:40 it sounded quiet.

[@mrnmrn1]

This was a new one to me. The cylindrical rotary transformer. I only ever saw flat ones. I really wondered how they fitted more than 6 heads on a head drum in more high-end VCRs, that cylindrical transformer must be the answer. I have a Panasonic NV-HS850 S-VHS with not less than *nine* rotary heads on the drum: 2 SP video 2 LP video 2 super-narrow LP video 2 HiFi 1 flying erase I still haven't tested how much difference it makes with the video quality of LP tapes if I enable the super-narrow heads. I wonder if it records as well in super-narrow mode if I switch that on, and if yes, will it produce better LP picture on playback with recordings that were recorded with ordinary LP heads, or it only has benefit during the playback a narrow-LP recording. I know that some studio S-VHS VCRs used narrower video heads even in SP to reduce crosstalk, but this is the first consumer model that I came across which has a similar feature, although for LP only.

[@12voltvids]

Panasonic had that on abveey early machine the pv1730. As to number of heads the Mitsubishi hsu82 / electrohome avrj05 set the record 10. 2 sp, 2 ep, 2 HiFi, 2 piezoelectric special effect heads for variable speed playback and 2 flying erase. Since LP was never an accepted speed no VCR had heads specifically for it. They used the ep heads. JVC actually specifies that no svhs recorder could have lp record speed only playback. Panasonic and Hitachi initially had LP record but even they dropped LP record on later models. More heads is NOT better by the way. They eat the tape coating. Every head bashing it's way around wears the tape every time it passes over. So more heads mean faster tape wear. This is why the double azimuth head was deviloped. Early machines had descrete heads. So a HiFi had 6 years gouging the tape every rotation. Double azimuth has only 4 physical as each video head has 2 gaps.

[@mrnmrn1]

@@12voltvids I should have clarified that I am from a PAL region, where SP and LP is the norm, PAL EP is rarity, and quite horrible, especially the linear audio. Here, VHS VCRs have specific LP heads, not specific EP heads. And I think most, if not all PAL S-VHS machines can record in LP-SVHS mode. SVHS-ET is SP-only, though. More heads surely cause more tape wear, but I'm not sure if dual azimuth SP-LP / SP-EP heads are that much better in that regard. They have three gaps: two actual head gaps, and a third, wider gap in the middle which separates the two sections. They are phisically 'longer' (wider), so they make contact with the tape for just as long as two separated head would. I think the main reason for dual-azimuth heads was probably cost cutting by making the assembly and adjustment simpler.

[@austinthevhsvideogamelover5265]

So did it stop when you tried reverse searching and forward searching off camera? Was the capstan noisy then too? I am glad the ones i had in the past never got to that point that this one did.

[@enesdedic2039]

I have a Jvc vcr dvd combo that works but when I put a tape in a press play it play only for 3 seconds and goes in to stop if you know anything about it please tell me thank you.

[@waltchan]

If there is no playback video for this model, the surface-mount capacitors are shot on the video board, hanging sideways in the rear. Very, very common problem.

[@stpworld]

I have a mitsubishi svhs from 2002 with 1000,s of hours and it keeps working are Mitsubishi units known for that. I am the orignal owner. Sometimes I still use it to record talk shows cause I won't pay the cable companies dvr fees. I have one cable box left with s video output. Many of my decks from along time ago still work including my first panasonic hifi from 1983 I think you repaired a similar model to it on one of your videos that you got from facebook market place. I also have a panasonic hifi portable vcr that has 4 head which is less common for a shoulder vcr.

[@12voltvids]

Mitsubishi were pretty good. Video heads are good for typically 1000 hours before the picture starts to degrade and then they get progressively worse. I used to change a ton of heads for soap time shifters. They would usually record 3 or 4 hours a day then then play back later. Most lasted about 18 months before the picture was bad and they came back for a new head. There is np reason to use tape today. There are plenty of boxes that will record your cable box directly on a hard drive with no fees.

[@stpworld]

@@12voltvids I only record once in a while so for now if its still fine if that mitsubishi breaks I probably won't repair it but I remember there quality being really high in 2002. We actully had a mitsubishi in 1989 with the trick playback board and it failed horribly no one could fix it when they probably just needed to remove that peice. It took a tape down one day and it never came back out. Didnt you say the trick playback board can make those issues? Is that guy still constantly reporting you I also hope your issue with using music bakery is resolved to.

[@stpworld]

@@12voltvids I have this Mitsubishi HS-U748 is that a pretty reliable model it does not seem to suffer from bad capacitors and I run it several times a month to keep the mode switch clean from your recommendation.

[@12voltvids]

@@stpworld music bakery still gets hit regularly with fraudulent claims I have one right now that should be cleared up in a day or 2.

[@stpworld]

@@12voltvids What about digital back trax I have those to I bought some way back I stil have the cds and paper work to

[@austinthevhsvideogamelover5265]

I got an RCA VR612HF VCR on ebay for $63.30 That has the same mechanism and it works perfectly.

[@austinthevhsvideogamelover5265]

The manufacture date on it is Dec 15 1997. I saw apr 17 1997 on this one.

[@ConsumerDV]

Hi Dave, a question: my VCR played a tape just fine, then the picture started breaking as if tracking was wrong. I tried adjusting tracking, did not help. Tried cleaning heads - did not help. The VCR has jog dial. In any mode other than normal playback the tape plays without distortion: pause, slow motion, fast motion, they all look great! No noise, and full color. But in regular playback it looks like crap. And it is not the tape - I played this tape before. Other tapes also do not play well now. The screen flickers, the color comes and goes. I wonder why it looks fine in all other modes?

[@12voltvids]

Clean control head?

[@ConsumerDV]

@@12voltvids Which one is that? Is it on the drum? I guess I can clean everything I can get to. Just don't want to break things beyond what is already broken.

[@12voltvids]

@@ConsumerDV it's the bottom on the stationary audio / control head located between the drum and pinch roller. The bottom edge is where the control track is recorded and that is what syncronizes the video heads to track the tape. Think of it as the electronic equivelant to the sprocket holes on movie film. No control track no playback. It's also used to set the playback speed. It isn't used on slow motion or search. It also makes the real time counter work so a dead giveaway if if the tape counter doesn't advance.

[@ConsumerDV]

@@12voltvids The counter works. This did not help. Thanks anyway! I guess I need to seek professional help.

[@ConsumerDV]

@@12voltvids It seems that it is another head, to the left of the drum. If I press the tape to the head with a q-tip, I get stable picture. Will try to clean it better. Maybe use pure water, like you did in one of your videos. I think I am getting somewhere, thanks! EDIT: um, maybe not.

[@mrnmrn1]

I would guess he just bought it and wanted to be checked over before he starts to use it. It was probably not used for archiving yet (or not much). The wear on the path of the guide rollers doesn't look too bad. The capstan bearing is dry, but probably not worn out completely, it would run OK with a drop of oil by good chance. Philips was idiot enough to put sleeve bearing in head drums... Now those are a pain, because as the lubricant ages it drags the drum, if the owner continues to use it it will wear out the bearing. If you put a bit too much oil in them, it will end up on the tape... There's a now onobtainable special tool for disassembling their drums to clean the bearing and re-lube it semi-properly, but without that tool, there's not much chance for success. It's held together with a special compression ring. No other companies that I know used sleeve bearing in head drums. Of course Philips being Philips, they had to do it differently for whatever price. The price being here lower reliability, harder repair that needs proprietary tools, or much more expensive repair if you had to thange the whole upper and lower drum because of a worn bearing, which will always wear out faster than a ball bearing, unless someone does regular preventive maintenance (clean and re-lube) on them, which I doubt anyone did.

[@12voltvids]

No he didn't just buy it. He took it out of service because it had problems and stuck it aside. Then brought it over with some beta machines to be checked over. This is a commercial user with a very expensive 5k film scanner setup that does scanning for TV stations and government clients. His scanner was over 100 grand.

[@terry.chootiyaa]

*Can anyone tell me is it normal for a BRAND NEW Capacitor to show less Farads then listed on it ...eg 220uf only reads 209uf ...😐....is that normal or are they faulty ?*

[@odotb9916]

Capacitors usually have a +/-20% tolerance. So yes its normal.

[@tonymanzo3766]

No user serviceable parts inside, they really mean it this time!

[@NMY556L]

Maybe you could get your old film scanner working again if you use Linux. HP Drivers might still be available on something like Linux Mint?

[@12voltvids]

That would mean finding a comparable scsi card. I picked up a cheap unit that is basically a camera focused on the film. Is it as good as the old scanner, no not quite it is 1800dpi and the scanner was 3600 native however it doesn't take as long to scan slides and time is money. When i get a fixed amount for each slide taking 3x longer is making 1/3 the money. The other one looked better but realistically people are looking at them on a tablet or photo frame and perhaps printing a small print.

[@NMY556L]

@@12voltvids fair point about photo frames. Although firesticks can go upto 4k most wont have content at that resolution, so you're not going to gain viewable resolution, only larger files. Keep up the great work.

[@instantwow]

Dave, do you have any experience with bearing replacement kits? I know back in the day they used to sell them. Just curious if shops used them or just replaced the entire capstan motor.

[@12voltvids]

Replaced the entire motor.

[@parmarchandrasingm152]

Sar Hitachi vcr ke idelr melaga sar i am india🇮🇳 me Gujarat Vadodara se hoo Sar🙏 price ketny hay sar

[@TTVEaGMXde]

I think someone removed the drive to see why it wasn't winding and accidentally bent the drum motor.

[@MrChrisRP]

A comment to help the algorithm, not that you need it Mr. Bigtime YT. heh heh More power to ya. But yes, it's a Sony and that makes it awesome as we know this already. (Thinking of the engineers and not the suits.)

[@12voltvids]

I'm just a small channel in the big picture.

[@pabitraelectronics7558]

Nice sir

[@leonjohnsonjr3331]

Mine didn't rewind so bought a vhs rewinder at the thiftstore for $3 bucks lol

[@tyx823]

wait the only known issue was the head drum?

[@12voltvids]

That's as far as I got because owner didn't want to spend more than 50.00