Відео

Has anyone had any luck getting one of these to send data to a computer over the network?

How have you found the SlimQ power supply? They've been on my list for a while but have read mixed reviews on them.

Sucks that the reverb g2 is gonna be discontinued. Its honestly my favorite headset with index controllers. Do you know if there is a work around so you still can use it after it gets bricked??

My M5 autofocus does not work. If I switch the lever from manual to auto nothing happens. Also if I hold the quick focus button the lens still won‘t turn. I looked inside and found out that the motor for autofocus doesn‘t even spin. Is the small motor just broken? Besides that everything works.

My Manual Service catalogue is missing could you please assist me with PDF copy

Ah the good old days. Got mine out cleaned it works like a charm.

Wonderful wonderful video. thank you

This is my dream channel. SO MANY TEARDOWNS

I noticed while you were taking this apart that you mentioned the capstan motor was an “open frame” motor. Now I took apart a Panasonic 1231r and it had the same kind of motor and I mean exactly the same except it had a driver board attached to it. I was experimenting with the board to try and power the motor and I made a short about it you can find on my channel but you can see it doesn’t really work. So I was wondering if you have any information about these types of motors or even better, that specific model.

These basic VCRs with mono audio and no HiFi stereo are not worth wasting time on, but if you are having fun that's all what matters.

Mid fix, during a drunken night 2months apparently I didn’t only destroy my monitor but my left knuckle, head of the control was disconnected from the base wouldn’t even turn on, got lucky because it was just a cable that got unplugged but it was very awkward to plug back in because I had to figure out how to dissemble the controller enough to plug it in. Ended up just muscling thru it to plug it in. TLDR I took off the top part with a knife cuz I didn’t have a screw driver, might have destroyed the joystick cuz that shit poped off with the top but at least now the controller turns on

Regarding the automatic/no manual adjustments input voltage thingy: Not all switch mode supplies have an ability to work over this full range. It depends on the controller IC or scheme used for the duty cycle control of the transistors switching the signal on the primary side. That being said, pretty much every PSU out there with Active PFC will have this ability, since the active PFC works as a DC boost converter after the rectifier and as such, the primary side DC voltage is almost always the same regardless of the input voltage. What an absolute treat of a service manual though! "National" was always the same as Panasonic. They originally sold it under the National brand because Matsushita thought the Panasonic brand name wouldn't jive well in the US market. But as Panasonic did end up gaining traction they unified the two lines. They are the same machines, with a different name, for the purpose of sounding less foreign-made. :')

very good teardown video very well spoken to

Btw i have one vcr of sharp name nv-320 i tired to find service manual if u find out then please send me on my email

Always love your videos always learn repair vcr i am huge fan of vcr and i repair some of my vcr by leading from you tube keep it up good work have a good day ❤

Very interesting video, is your testing tape from germany? The channel logo looks familiar...

What is this problem

Which gress u use for head?

heyy bud i have a samsung qled 55 Q7 series i have been facing issues regarding the display , the technician told me to change the display but when i asked the samsung customer care they said the panel manufacturing for my perticular model is stopped they asked me to take 17% of my tv`s worth and submit the tv to them . ANY ADVICE FROM YOU?

My ❤❤❤

Hello! Any chance you'd be able to advise on a "white light" blank viewfinder problem? Couldn't find any similar cases online and was hoping you'd be able to advise! Many thanks!

It Also Gave Me BSOD And It Gave Me Heart Attack When I Was Playing Roblox

Thanks for the teardown. More complex than I thought it would be, or at least more miles of wire. And it's always nice to see a RIFA cap. My industry, railway signaling systems, used a lot them in the 70s and 80s. Never had a problem, but guess the rest of the world ended up hating them.

Kraus and Naimer switch! Mmmm 🤔

That was very interesting, have never seen one this big! A little scary that all of the electronics are mains referenced, I expected them to use some kind of isolated inverter.

HiFi stereo audio changed the experience of watching movies at home forever in the 80's. Though for a time you had to pick and choose hired movies that had the HiFi sound. If I recall correctly, the HiFi audio signal is recorded first, just before the video track is and the video track wipes out 80% of the HiFi signal on the tape immediately. Think of it like layers pushed into the tape. Then the HiFi heads have to recover the signal on playback. Due to the difference in frequency between the video and audio signals, the heads were unaware of each other's signals so the HiFi track did not affect non HiFi machines. The 850 ran pretty high back tension so they were hard on the HiFi heads compared to the later models. People used to record CD's onto HiFi VHS as it was next best thing at the time if you wanted a copy of a friend's disc.

Thanks for the teardown, it's hard to express how far ahead this machine was compared to what else was around at the time. Just a marvel of flat motors and miniaturisation that had few known issues. And for a VHS deck, it had a great picture so they didn't cut corners. One thing I was told back in the day was to not rotate the hydrodynamic bearing backwards, only turn them in the direction of normal rotation, even when just cleaning the drum by hand. You will encounter that bearing in non-portable Nat/Pana VCR's that came with the later G and K mechanism, models with the prefix 'D', 'H', 'F', 'FS' and 'HS'. (PAL models)

Had one at our family home in Hornby in the 90s. Instant nostalgia from childhood.

damn, i need such a power supply, my machine shuts off after a few minutes of operation 😞

I remember sellling these new many many many years ago around 1987 or so

very similar to the nv 260 I still have stored somewhere, I loved that VCR in fact I bought 2 other units just for spares, unfortunately the spares are gone now. Mine is really worn has been used to death well into the 2000's to record sport events. Someday I hope I can restore it.

Super bro

I used to service fax machines a very long time ago (a horribly boring and repetitive job). The stuff for cleaning rubber rollers is called Rubber Rejuventor or Platen Cleaner. It was nasty smelling stuff though. If you get some, use gloves and good ventilation.

It's quite amazing that you have A VCR ROOM.

Maltiy system vcr ?

Damn another furry into repairing old kit, that’s super cool :3

The unit does RGB, S-Video and CVBS switching but no conversions between them. It's fixed architecture audio DSP is its real neat secret but you can't access it without a pc via USB using the manager software. Speaker relays are for muting, 70 volt output mode is activated in the software. Out of the box it runs stereo, low impedance out. Being a device from the 90's it has the appearance of a familiar analogue audio device from the front panel but with a decent DSP running inside, the faders are not passing audio, audio levels can be controlled remotely via RS232 or a remote potentiometer if you use the DB25 connector.

Interesting choice of a Class D amplifier but a conventional linear power supply.

The X700's are next to indestructible. The only pain with them now is there are no USB drivers for Windows beyond Win7 when trying to configure it via the manager software.

That squealing sound reminds me of when a Commodore 64 data cassette tape is played in an audio cassette player. And you've been scrapping VCRs for over 30 years? To be honest I thought you were much younger than that, like your early to mid 20s.

I always thought it odd that these G7, G10 weren't using the 'G' deck mechanism which I think started at the NVG21 if I recall.

nice video!

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your package says 1800i and the intruction book says 1800u

refrigerator brand sir

National made absolutely great VHS gear in that era. The NV-180 portapak of that era was a wonder with all direct drive motors.

In todays throw away world, can you imagine them even bothering writing such a comprehensive service manual. Thanks for the trip down memory lane. Other than replaceable rubber components and the back-tension band, they were very reliable machines.

Helo sir VEH 270 videohead is used in it. Which head can be used as an alternative?

Nice video. Can you post a video for National NV G30?

My m5 doesn't record. Nonthing happens when I Push the button and sometimes it shuts down when I Push the eject button. Please help me 😊