EEVblog

[@snarkyboojum]

Love the insight into the engineering and design process Dave gets into these teardown videos. Awesome.

[@MudRFunR]

I have 2 mid grade JVC's. They have been through so many mud bogs in open trucks. So many times, I thought they must be ruined, all covered in thick mud. Now years later, one finally quit. It got mud in the zooming mechanism. The second one still works but recently got too close to my hand grinder and burnt little pits in the lens. Remarkably, it still records clearly except when the sun is facing the lens. JVC's are awesome! Nice to see the inside, thanks.

[@PooperScooperTrooper]

Love this fellas enthusiasm! Wish I had a fraction of his knowledge in Electronics!

[@SproutyPottedPlant]

The lens was always a mystery to me, thanks for tearing it down and showing me it is a lot simpler than it looks, I guess it is quite realiable too!

[@FXGreggan.]

It's always fun to get some recognition for all the work consumers never will understand, on behalf of all engineers - cheers! :)

[@harrisonhealey1679]

Wow that was amazing, thats the longest speech ive heard explaining why the infared sensor was positioned there, you're fantastic at teardowns :D

[@superdau]

Usually year and month (or week) of production. AFAIK they are not part of the original mold but moveable inserts that can be changed around so the date can be changed without having to produce a new mold.

[@bubblehead78]

Enjoyed the teardown, Dave. Thanks.

[@mathurm100]

I work on a systems integration team for a company that makes electromechanical chemical instruments for medical diagnostics. We have 5-10 of each: mechanical software electronic engineers and chemists and scientists. Getting all of them on the same page requires a special type of engineer. I'm a bioengineer which is the perfect discipline for that

[@GaRbAllZ]

Great Job Dave!

[@mikeselectricstuff]

A reason for analogue video to the screen is to share hardware with analogue TV-out

[@TheSkogemann]

The heat sink on and around the CMOS is not for "cooling", but for minimizing infrared interference.

[@PhoneyGeek]

Sounds like Dave was getting a little nostalgic about his old job! Old habits die hard and all that!

[@bitrot42]

Perhaps the video DAC is just for the "COMPONENT" connector, and doesn't sit between the main ASIC and the Sony LCD driver...

[@michaelchapman2901]

An educational, worthwhile watch, thanks.

[@glenncummings1326]

Thanks for the video I have a JVC-GZ-E300 I'll be pulling apart I have a new Flex Cable.

[@Razor2048]

If you get a chance, save the IR filter , they are pretty useful and are hard to get for cheap (great for building your own IR cut filter, or for other stuff)

[@glenncummings1326]

I think the DAC and analog driver supports external video devices.

[@Shawn_White]

36:10 you might want to disable auto-focus on your main camera if it supports it. I noticed that it was trying to compensate for your adjustments to the camera lens assembly during that experiment.

[@PhattyMo]

13:07 Notice that they've punched holes in the (I'm assuming) hot/signal trace of one of the mic's! I assume this was a mono model,then? I assume they must use the same microphone assembly in more than one model? Why not just remove (omit) the unused mic in the first place? Save a whole 20 cents each! Curious.

[@UnreasonableSteve]

They are manufacturing date/machine/line (depending on the dial) indicators.

[@antsgamingvideosn2b]

My JVC full HD Everio-a GZ-E10 (released in 2012) has a barrell type DC connector instead of a propietary one.

[@JimGriffOne]

They would start with the basic rectangular design then put the hole into the plastic where necessary to accomodate cables. Most models have a similar shape and design, so they can use them as a basic template. I would imagine they would use CAD and 3D printing of prototypes all the way too.

[@isashach]

Although I'm sure that JVC sells lots of models, I'm guessing they're all very similar - the differences may be in the external housing + a few extra buttons here and there and some features unlocked on the processor. The TV industry does the same thing to obfuscate their TV's (especially Samsung, they literally have a model number per retailer) so that if one model number starts getting bad reviews or bad press, the rest of their business won't be affected as much I guess.

[@EEVblog]

Ah, good info, thanks.

[@dalriada842]

It also had component out. The socket was immediately to the right of the hdmi connector.

[@LiquidPortalDigital]

In regards to the lens and the manufacturer. A lot of cameras will advertise on the lens or in their brochures things like "Ziess Lens" or "Leica Lens"... For the most part, even on professional fixed-lens cameras, all Zeiss, Leica, Konica do is engineer a "lens pattern" and maybe do some manufacturing. The camera company actually builds the lens. So really it should read "Designed by Konica/Minolta". Canon may be the only one that this doesn't apply to since they are also a lens company.

[@MrCbass1234]

I have a JVC thatI have, and I dropped on Easter morning video my kids Easter hunting. it was a raining day. so I put it in my pocket, and it fell out of my pocket. now it will not focus. but it looks like it did not damaged it, only time i dropped it and was not on at the time. help help how to reprogram to focus. if I did not brake something inside I hope.

[@josediaz85]

pretty cool teardown, great Videoblog. thumbs up!!

[@UnreasonableSteve]

They're called "Date code wheels" generally, you can google them for more information.

[@azyfloof]

Another fantastic teardown :) Man that thing was a beast! I'd love to see you try and get the screen working with that driver chip, get an analogue signal displayed on it. Perhaps the chip even has a test mode for this?

[@WarriorOfMetal]

Very good.

[@mmmeliih]

holy shit man! I just gave up watching all my favourite tv series because of you :D

[@kikass1997gaming]

i think they are clocks, indicating the time the part was made.

[@rangehold]

Out of curiosity... I don't think you will be putting it together again, so what do you do with the remains? Bin?

[@chuk.i.9157]

VERY INFORMATIVE AND INTERESTING VIDEO...

[@ohmannhey]

Keep in mind, that the reason for the "seperate parts which could have been molded with the casing" might not have been moldable in the first place (e.g. undercut). ;-)

[@SciStarborne]

Shame it didn't have an iris, their actuator construction still baffles me. I really need to tear one open. They're wired like steppers but only have a range of motion under 90 degrees. No idea how to drive one yet.

[@unaliveeveryonenow]

Designing their own is never cheaper. Stuff like LCD drivers is basically off the shelf.

[@timramich]

He's not cursing off a person, he's cursing off a company. Forgiveness isn't for corporations, it's for people. If someone screws up at a company there should be no mercy. If a person screws up towards another person, that's when you're supposed to forgive.

[@FoolAhead]

The connection to the sensor might be MIPI-CSI

[@RRROBERT1990]

Thank you for your work, its wery informative to the young players like me. By the way which sites do you use to search for datasheets?

[@MCRIPPPerutube]

what are those little numbered dial looking things that are always cast into plastic parts?

[@dimitar535]

those are called potentiometers. basically those are variable resistors. :)

[@excavatoree]

We don't know how many screws they needed, but we see how many they are going to use.

[@ajmalghanty]

interesting?!? that was AWESOME dude!!

[@biltema2000]

Yay, new video :)

[@JJAstley]

are u able to put everything back together? I teardown my HP 945 and when I reassemble, the ribbon cable just tears off...

[@railfanningstuff8333]

the D168852 031EG003 is some kind of 1x16Mbit or 2x8Mbit flash for Cam caching

[@TRMTHEweasel]

have you got a JVC GR-070AA to pull apart ? i have mine it cant get the tape out of it and make all the sounds and battery full open the door makes the sound but thats it take dont pop up at all

[@PhattyMo]

Ohh,I could be wrong. Maybe those are marks from a Sharpie pen? I think they are ink marks,Hard to tell.

[@KelvinW344]

Would it be possible to use a lightpipe for the IR sensor and mount it on the PCB directly?

[@DanieleGiorgino]

That makes sense.

[@seephor]

I like how you say the letter "H" (HAYCH)

[@mathurm100]

Our mechanical folks do all the consumer designs and aesthetics

[@googlemyharbl]

I would really love to see him teardown a Network analyzer...

[@rsand611]

your the best

[@x9x9x9x9x9]

We used to have a show called Uncle Zed

[@charlesnjuguna2876]

hey i have a jvc camcorder that won't charge up, i replaced the battery and replaced the power cord , but still it wont power up or take a charge, what can i do ? steve

[@NESpotting]

The AK4674 is a stereo codec made by AKM.

[@ValdemarCamilo]

42:59 nice shot.

[@ecmjr]

1:37 --> LOL! Amen Brother!

[@Dalvion]

I don't think that's what they were referring to..

[@djlau1]

are u putting it back to gether?

[@spongygryphon]

1:36 Finally someone who feels the same about those proprietary connectors. >:( Absolutely hate them!

[@iseeyoukvn]

date of production codes => day and month

[@kevinhirt]

Love the vid

[@AnanusBananus]

the "cheap" plastic said pc (polycarbonate) and abs so maybe not that cheap afterall

[@KX36]

"hung drawn and quartered" rather than "hunted and corded" i think. look it up, pretty gruesome.

[@Pincknec248]

As an American I got a laugh out of 'Zed'

[@aerofart]

enjoyable

[@vaualbus]

This is not like the sony one. But I think that the sony teardown's is more interesting.

[@vasileceteras]

So then can someone hack one of those cameras and inject TV signals in it, such as, say, from a Raspberry Pi, to get the image on the screen?

[@ziggassedup]

I could use the ribbon for the flip screen...I'm in Sydney...

[@123456789robbie]

adhesived? you do mean adhered?

[@Doom2pro]

So if we turn it on... (moments after removing battery) ... (not turning on)... lol I do the same crap, completely forget things I did moments earlier hehe

[@krist0sh]

Is the lens replaceable?

[@superdau]

Search for "date marking pins" images. You'll see what I mean.

[@HAZFRAME]

man it's so crazy seeing the other branded chips in this JVC...SONY, TI? I guess they patented those certain ICs or is it just cheaper for JVC to pay in bulk instead of designing their own? or do the companies have mutual sharing of tech? wtf?

Yes, you are right. I was badly listening, my fault :)

[@jerryslayer19]

what city are you in EEVblog in Australia

[@rhodriedwardwilliams]

Any one know where I can get a replacement main board for this camcorder the clip to attach the flex cable has snapped

[@thenewbgamer6416]

It sounds like ur saying "Juul" instead of two.

[@djlau1]

yes i did :p may b i missed it did he do it?

[@tigerwhite007]

JVC Camera's aren't what they used to be… back in the day they were the leading camcorder brand behind Sony of course, these days Sony is your number one followed by Cannon, Panasonic and JVC would be last in terms of features, build quality and general video quality… it's unfortunate… but it would explain why I had a few JVC digital HDD camcorders break down after a couple of years

[@laserguy8673]

White Tiger Visions they builded one everio like a tank. All machine screw and only 2 self tapers. Iris, full aluminum midframe (not like the plastic one in this video) and 35X optical zoom with iris. It also had an build in harddrive. I expected more in this one

[@xoio]

Now put it back together :-D

[@jjptech]

07:52 Do you know any way to discover what kind of pinout the flex have? thanks

[@callumBee]

Love how you talk about the Marketing Departments. "What a load of wank!" great! xD

[@Jeroenz0r]

hehe, lol'd at 12:23

[@sipos66]

Just to let you know. I purchased a JVC GR-850U camcorder in 2008. It worked fine since 2012 after my family & I came back from Key West in March of that year. It sat on a closet shelf for several months, then when I tried to use it again I got an 0E3 error message "in safeguard mode". JVC has known about this problem for years and has done nothing to fix it. I got ripped off! I thought that JVC was a reputable brand, but I will never buy another thing from them because they are crooks! But, If YOU might be smart enough to figure out what is broken, then please share!

[@AMalas]

Maybe its to do with rhe battery

[@whoisme678]

I can just make out...the text says.....I need a sheet of paper!!

[@danksmokaz]

bro i need that data battery for my JVC HM30-BU

[@jonathanpeden9930]

"What a wank!" Lol

[@killer1479]

konica minolta are owned by SONY =]

[@Zerocool818]

most cussing in a teardown so far lol.

[@yuppiehi]

Oh gravity, thou art a heartless bitch. 00:34

[@guidostinkercave3636]

It seems, that you really don't like the marketing guys: en. wikipedia. org /wiki /Hanged,_drawn_and_quartered

[@NerdNordic]

Did you watch the video? ;)

[@000000t]

Damn that thing is like an onion

[@rangehold]

What? Sarcasm maybe?