An impromptu VCR teardown when Dave has to open it up anyway to extract the scrunched Handifax 1000 video tape!

Hi Now there were quite a few people who wanted to see what was on this handy fact 1000 operating struction VHS uh video. so I thought I''d uh, try and capture it. So what I've done is I've I didn't have a VCR so I've salvaged a VCR which just so happened to be down in the uh junk room somebody had tossed it out. it's an ENC it's one of these duel one of these modern in quote marks dual uh DVD and and uh VCR um six head o six head highi stereo.

Love it and uh, so it's one of these VCR so I salvaged it I don't know if it works or not. um but we'll give it a try cuz it's the only VCR I've got it did have a sharktail DVD stuck in it. um so presumably that's why it was, uh, tossed out. but anyway, I've um decided to hook it up to a uh hup if that's how you pronounce it.

no idea how to pronounce that. it's one of these Hdpvr capture boxes and I've got um Alan Garfield to thank for that. He uh sent me that so thank you very much. Alan So I've got that uh, hooked up to the composite video output on this thing and I thought we'd uh, give it a go like uh the reason I've got the lid off is not only to uh, show you inside, but also um because I put the tape in before and it got stuck.

It chewed up the uh, it chewed up a bit of the tape. so to free it I had to uh, open the thing up. So here you go. If you haven't seen inside a VCR before, a lot of you young people probably haven't There's the head which uh, spins around the uh top half I believe It's only the top half spins around and you can see those little notches.

If you can see those little notches in there, they're the little heads I believe and there'll be six of those spread around. So as it spins it, uh, spins diag. and the reason it's diagonal like that is because it, um, it, uh, sweeps across the tape as it travels through. I'm not really up on the theory of how VCRs worked anymore.

I Did uh, have a little bit of a clue? you know, 20 odd years ago or something like that. But there you go. that's a six head. um Hi-Fi uh VCR head and it spins, spins around I'm not sure at a couple hundred RPM or something.

and uh, there's a little uh Drive motor and some uh cogs to operate all of the pinch rollers and stuff like that and I'll put the tape in in a second and you'll see it. Uh, see it all operate but there's not much to it. The Old Fashioned VCRs used to be a lot more complicated than this. They would have Dr belts and pulley and I mean this one still has a there's a pulley down in there.

Looks like it's still got a belt on it. but they had a lot more belts and pulley and pinch rollers and things. Or they seem to. that's my recollection of it.

Anyway, back in the old days, so um, but they still have a few pinch rolls and the tape you'll see. the tape will actually go up here. These sliders will slide along there like that and actually wrap the tape around the head like that. and uh.

anyway. um, here's the switch mode power supply. as, uh, fairly, uh, common inside. almost Universal Actually inside these sorts of, uh, consumer appliances, they build them down to the last scent.
so they use a single-sided board for the switch mode power supply. There's not much for the DVD player, it just connects over to the main board. Down in there, they got a fairly looking main. modern, uh, main.

PCB down there. half the components aren't populated, which again, is uh, common. Maybe for different models or something like that. We've got our tuna over here and our output connectors and there's not much else to it.

So uh, hopefully this, uh, suck is going to work. It's fairly modern. It's got one of these um, uh, 2D uh barcodes on it. There you go.

So anyway, let's give it a go. hopefully it won't chew it up again. And here we go. There we go.

It pulls the tape around the head like that and you can probably hear that or see that uh spinning at the very least. So it spins around the table and uh, it looks like it's ready to go. So I've got my Uh software up there and we'll give it a go. So as you saw there, it's got uh, several steps it goes through when you insert the VCR in here, they once you push it in the front here because you'll notice that it's actually further.

it's dropped down inside there. so you push it in, they've obviously got a sensor which detects that the Uh tape has been uh has been inserted and then they've got uh roll is in there which grab it and drag the tape in and then it drops. um then they've got a you can probably see the mechanism there which the tape sits in and then it levers down like that and pushes the VCR down onto the transport uh plate or the transport mechanism uh down in there and then it um lifts up the flap here cuz the flap has to lift up which actually protects the tape during Transit and uh handling and uh, things like that and it's got a little latch on the right hand side here which pushes in it releases that there's an arm which comes in motor, lifts it up like that and then the rollers in there can get uh inside and they actually get behind the tape and then they roll out like that and it pulls the tape and wraps it around. there.

It wraps it around and it makes physical contact with these things as it spins and moves. and that t tape is moving. Now you can see it. Uh, you can see it rotating in there so it dries it from this side.

and uh, so there's another motor in there which drives out. So there's several uh Motors and uh, lever arms and uh, things like that inside one of these. uh VCRs So but I I think that's relatively, um, simple operation. really? For one of these, uh, as I said, I think they were much more complicated than this.

uh, back in the original types, they seem to have a had a lot more in them. But as you can see, that's why these tapes are wore out. You had to clean them. There were alignment issues that you had have to demagnetize things it was.
You know, these things had to be uh, serviced. and uh, that was a big industry. You know, back in the day servicing your VCR your tape got stuck in there and it chewed up the tape so you'd have to cut some off. You'd have to rewind it.

and uh, it was. These things required. You know, a lot, lot of percussive, uh, maintenance and a lot of, uh, a lot of, uh, you know, care to actually use them. And of course kids would, um, you know, shove things.

They'd shove toys inside there. So one of the common, uh, most common jobs for any VCR service tech was to extract toys from inside the transport mechan mechanism in there because little Johnny shoved his little toy car inside the VCR or shoved his uh, peanut butter sandwich in there I Love it. Okay, so let's stop this thing and uh, let's rewind it and we'll take a look at what happens when it rewinds. Once again, there we go.

Hey woo doesn't sound good and it slows down when it gets to the end and then it should. Kach chunk, kach chunk. kach chunk stop. and yeah, and it forwards it.

It takes up the uh tension on the tape I think that's what it was doing there and let's eject this thing and uh, you'll see the uh, this mechanism on the side lift up. There's one of the arms I think for lifting the flap there. So and this one here lists the transport mechanism so it looks like it all works in one continuous step driven by that Cog down in there which almost looks like it's sitting on the PCB actually. so that's uh, rather curious.

Anyway, Let's uh, eject this thing and have a look Bingo and our tapes back back out. Thank you very much. Ah, 80s technology I Love it! I'll give you another perspective of that. As it's pushed in, you can see that's the mechanism there that holds the tape and there we go.

Boom and it automatically starts playing ribbon cable going into to it there with the four pins on the back. I'm sure that one is the sound head because if you look on the front surface you'll uh see the head which is on the um edge of the tape cuz the video is in the middle and I believe the audio is encoded um right out on the edge of the Uh tape itself and you should be able to see the actual Uh sound head pickup itself on the top and the bottom there of the sensor head and some people desperately wanted to see this thing uh switched on and yes it is just the micro switch in there I believe So let's oh beep beep just press the on on off button. oh nothing's contrast. oh hello McFly it's beeping but uh look looks like she ain't working anymore whether or not that has something to do with the tear down or whether or not it just never worked I have no idea.

Obviously to get that beep, the uh the Uh processor itself is working but uh, looks like we have nothing on the screen. bummer sorry whether you're from the office, well there you go. it's uh, it's working and I will Capt try and capture the real video and play the entire tape after this if you really want to watch it. but uh, it looks like it's not framed that correctly.
that's uh, completely way out. so I'm not sure what's going on there I have to play around with the Uh software. it is set for pal B and uh seems to be set up correctly. but uh, no, the framing's all wrong.

so let me fix that and see if I can capture it. There it is. I got it. Just had to switch to uh Pal M in there and uh, it's looks really good actually for a VCR So I'm going to record that and uh, sit back and relax and watch the entire 22 minutes.

If you dare, just try and stay awake. see you is now installed.

Avatar photo

By YTB

27 thoughts on “Eevblog #289-1 – vcr teardown handifax followup”
  1. Avataaar/Circle Created with python_avatars Ian Penfold says:

    not sure if you or anyone else has thought it yet, but maybe the reason why the handifax wont turn on might be because it also has to have the lithium battery in it to switch on, cos it would 'think' you had the unit upside down and were changing the lithium battery and accidentally pushed the on button. it might also be doing something wierd with the data depending on what kind of powered state it was in and you might have to wait for that check cycle to complete. i suspect tho that a lithium battery has leaked and done some damage, hence the whiteish smudge on the screen.

  2. Avataaar/Circle Created with python_avatars Brandon Rogerio says:

    I'm pretty sure the tapes are called VHS's, not VCR's

  3. Avataaar/Circle Created with python_avatars AluVixapede says:

    But does it have a DVD rewinder? :3c

  4. Avataaar/Circle Created with python_avatars Rob G says:

    I can tell you watched the VCR episode of "Secret Life of Machines" because you pretty much repeated Rex's words about foreign objects being inserted exactly!

  5. Avataaar/Circle Created with python_avatars AAAZ2A says:

    PAL VCR's revs at 1500 RPM, and NTSC at ~1800 RPM I think

  6. Avataaar/Circle Created with python_avatars Skyfox says:

    Not sure if anyone's commented on this before.ย  A "6 head" VCR is actually nothing more than a 4 head VCR, but they decided to include the two audio heads for the left and right audio channels to give the marketing illusion that it's better quality than a standard 4 head VCR.

  7. Avataaar/Circle Created with python_avatars Joe Bond says:

    yeah i went and watched shark tale after this haha =]

  8. Avataaar/Circle Created with python_avatars Overspray says:

    Yup, sharktales can get just about any DVD player chucked in the bin shortly after pressing "PLAY"
    lol!!

  9. Avataaar/Circle Created with python_avatars Hugh Turner says:

    Little late to the party, but if anyone hasn't said it, the reason the head is at an angle is it allows them to fit more data on the tape. instead of running the heads perpendicular to the tape only allowing about 1" of tape to hold a "stream" of data, running it at an angle lets them get 4-5" of data per swipe of the heads along the tape, so you can double or more the available data per rotation of the head.

    Shallower angles allowed for greater picture and audio clarity (more information) and also prevented cassette producers from having to go to larger spools keeping the cartridges relatively compact in the face of higher definition movies, and longer films.

  10. Avataaar/Circle Created with python_avatars toshineon says:

    Interesting stuff for sure. I've had a small fascination with analog media such as VHS tapes lately. Most people I know watch all their movies on Netflix, but for me, watching a movie means putting a VHS tape in the drive, hit rewind, and go get soda and popcorn while you wait.

  11. Avataaar/Circle Created with python_avatars Andrew Joy says:

    It does not lift the tape off the head when you rewind , i am sure the better units had like a super rewind where it took it off the head to rewind it will less wear and faster.

  12. Avataaar/Circle Created with python_avatars Freek Knolle says:

    i love the spining head how fast and how silentย 

  13. Avataaar/Circle Created with python_avatars Ahmed Azhad says:

    Boring… too many I don't knows!

  14. Avataaar/Circle Created with python_avatars ะะปะตะบัะฐะฝะดั€ ะ“ั€ะธะดะฝะตะฒ says:

    NEC with LG transport

  15. Avataaar/Circle Created with python_avatars Gordon Freeman says:

    I have some Beta VCRs, those are fun :D.
    And some old VHS ones, I remember doing service to those back in the day, good times.

  16. Avataaar/Circle Created with python_avatars Alex Kantor says:

    It's pronounced "hop-hog"

  17. Avataaar/Circle Created with python_avatars norwegianwiking says:

    memories….some tech i'm actually familiar with

  18. Avataaar/Circle Created with python_avatars ehurtley says:

    Dammit, stop calling the CASSETTE a "TAPE". ย The TAPE is the actual flexible part that holds the data. ย The big black case is the cassette. ย (In the discussion of how the deck pulls the cassette in, he repeatedly calls the cassette "the tape".)

  19. Avataaar/Circle Created with python_avatars Santiago Petrungaro says:

    Oh, what a disappointment! I expected to see much more inside that sucker. My old school ITT-Nokia VCR weights 10lbs on PCB and cables

  20. Avataaar/Circle Created with python_avatars Chris Sutton says:

    My Granddad (sadly no longer with us) spent his life working as a TV and VCR service tech. He never got to see the solid state storage technology we have today. I always wonder what he would have made of that.

  21. Avataaar/Circle Created with python_avatars Adam 7868 says:

    whatever happened to DONT TURN IT ON Take it apart

  22. Avataaar/Circle Created with python_avatars eyetrauma says:

    "There was a Shark Tale DVD stuck in it. Presumably that's why they threw it out."

    That'd be my reaction to Shark Tale as well.

  23. Avataaar/Circle Created with python_avatars raidenlloyd1 says:

    Oh! wait, i forgot to sub after watching the first teardown video. Silly me.

  24. Avataaar/Circle Created with python_avatars La chambre de Nico says:

    Modern one do that there was 3 name the full stop mechanic then the half stop and no stop, the first one remove the tape from the head completly the seconds only half and the third don't remove the tape.
    Of course it kill the tape faster !
    But this one is a modern bad vcr mechanism with almost no adjustement possible.

  25. Avataaar/Circle Created with python_avatars Osmosis says:

    Back in the day, a tech friend of mine was asked to extract a VHS from a VCR. Of course we watched it. It contained weird European bestiality porn.

  26. Avataaar/Circle Created with python_avatars DossKat says:

    and little johnny shoves his pe…anut butter sandwich in there. well, not what i was expecting :p

  27. Avataaar/Circle Created with python_avatars rarbi.art says:

    what a shame this chassis is.
    This is just a shady fading image of what real vcr chassis had been in the late 80ies/beginning 90ies. this hasn't been constructed to last.

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