I'm back with my eMac (WARNING: CRTs Are High Voltage Risk)

[DanielHeusburgh]

What if you smash the f*clerk to Peices, will it discharge then? :P

[Recyclojunk64]

The main electrolytic capacitor (large cylindrical component) does usually contain about 300V - 500V with unlimited amperage, which can kill. If you know what you are doing though, you can discharge it with an insulated-handle screwdriver and then it should be safe to handle and still work afterwoods. In some monitors there is a bleeder-circuit, which will discharge the capacitor within an hour or so, but be safe and still discharge it again anyway.

[LauxHawk]

Great quality. =P. Good information though.

[weridpan]

you wont get elect if u use rubber gloves

[Jackson1z1]

i used to use a eMac but now i use a iMac MUCH better but it's kinda the same cause THEIR BOTH APPLE AND A MAC!!!

DUH!

[pidemelafrula]

That's why its recomended to leave it off at least 12 hours before opening it.

[win95sux]

Macs suck

[DeanGuitarsOwn]

stop commenting on every mac video

pcfag

[edn12345]

YOU SUCK

[ChardsVideos]

were rubber gloves

[s043487263]

thanks for the tip now i wont open up my emac lol

[LateKnight347]

wow important news from the nazipress. i like the change up.

[ruediix]

Man, I'm finally catching up on my Youtube subscriptions.

Anyways, the CRT issue is a nasty one. They really should have caged the CRT in those eMacs so you could work on them without getting near the high voltage components. It would have also allowed them to run more reliably.

They really should just switch to LCDs, they don't need the nice fancy LCDs that are in the iMacs, just an economical standard office-grade one. They can also go with a thicker, boxier, less sleek case.

[ipodguru22]

i had to replace a hd out of an emac once... good times

[nozgrd74]

this is with all crt monitors....not just old imacs

[bionicmisfit]

You use the same precautions you would in servicing ANY test or display instrument w/ a CRT or any other high voltage active or passive element...wear rubber soles, stick one hand in your pocket if at all possible and use your noodle...nearly all latter day CRT devices (TVs, monitors, radars, etc.) have a bleedoff resistor connected to the most hazardous part of a CRT: the SECOND ANODE---that's that little suction cup like gizmo you have to watch for.

[ruediix]

Not just that annode, the whole line from the annode, to the flyback transformer, and it's capacitor, and then the line up to the guns.

Of course, the protections you mentioned aren't enough. You should leave the device disconnected with the power supply discharged.(short the "hot" pin to the "ground" pin to discharge a power supply) Then you have to go and wait a nice 24 hours for everything to go a bit cooler.

[bionicmisfit]

Wait 24 hrs?...I've been fixing TVs and marine electronics including radars since the early '50s and I never once had to wait 24 hrs...for one thing you would use an HV probe and simply look at what it says while the 2nd anode is discharging exponentially and you'll know when it's safe to touch. I can't give a whole course in sparktronic maintenance in 500 characters...anyone noddingly familiar with the trade would know what I was saying.

[KobyBrandt]

Capacitors are the gift that just keeps on giving, as in shocks that is. As long as they're discharged (or you're insulated), you'll be just fine messing with those internal electrical parts. But if you don't know what you're doing, DO NOT mess with the innards or you may reeeeeeeeeeeeally regret it!

[ruediix]

Not to mention the fact that a CRT is like one giant capacitor, connected to a nice flyback transformer to keep it in constant flux with another set of coil-capacitors. Those things can keep a nasty shock for years if not discharged completely.

[Aliof]

welcome back. I was thinking AIPAC some how got back at you they usualy do.

[Fila8882002]

I agree Aliof

[nicholas9999]

here is a link to a message board where some folks are talking about how to deal with this problem. jamroll dot net/support/post-167931 dot html turns out there are multiple ways for any type of crt to be pretty dangerous; it's a good but short discussion.

[Hawkflieshigh]

Duhaaaa!...It says right on the back when you go to take the screws out to remove the back...WARNING DO NOT REMOVE.. THERE ARE NO USER SERVICEABLE PARTS INSIDE...DANGER OF ELECTRICAL SHOCK...

[xDETOx]

glad to see you back!!

[dan219089]

What i thought was funny is I just took apart 2 different tvs I found and I was fixing a few bad solders where the composites go. I don't know a lot about tvs but wherever I saw a thick ass wire and tried to stay away from it. My point was I expect political videos from you. Thats all.

[ruediix]

Yeah, the tuner/input sections are the only regions I'll go near with my experience level. That whole flyback transformer loop with the thick wire, going to and from the CRT is basically the most dangerous part from every piece of documentation I've read.

The worst part are some faulty designs in some newer TVs that remove the discharge circuit, making the thing require discharging by some other means.

[colmmernagh]

How did you find this out ??? and did it hurt ??

[representativepress]

I was almost going to mention in the video that no, I wasn't shocked. I do want people to understand the danger of disassembling an eMac, many people don't know that a charge stays in the CRT even after being umplugged for days. This is the same danger in taking apart a TV.

[bionicmisfit]

There should be a very plain and unmistakable warning label on the back of the monitor...because if not they could face a lawsuit that would put them in hock for the gold in their teeth.

[munkiiboi]

apple warns against opening their products anyway, last thing they want is to get reverse-engineered and they have themselves a pretty mean competition in their already small market!

[colmmernagh]

lol,yea my grand da always said that TVs do the same.

[Naelok]

Macs suck.

[representativepress]

I think Macs rule. I wish I could afford a brand new one , the top of the line would be sweet. Even the boot time is better. I think you would be shocked at how fast my eMac boots and shuts down.

[representativepress]

I know, I thought that too when I heard he died!

[L0vethehater]

This is why we use a PC... duh!

[representativepress]

I you are buying new, the new iMacs don't even have CTRs, they have flat screens so it isn't an issue with new ones.

But I think Macs are great, especially for artistic stuff like video and pictures.

[bionicmisfit]

Just because a monitor has a flat screen doesn't mean it does not contain a CRT and carry high voltage...what you probably meant was LCD display which does not contain high voltage---most electronic test instruments made today by Tektronix, HP, Fluke, etc., are all LCD and they have completely quit making CRTs

[BradyKenniston7895]

@L0vethehater Umm... PC's have used use CRT's also, and if you take apart a CRT it's a high voltage risk.

[bgr8flgrl]

I'm glad you are back! That was a good PSA, I would not have known it, but then again, I would not try to fix the thing myself as I'd F it up for sure...

[dan219089]

WOW, thank you for that public service announcement? that was supposed to sound sarcastic.

[representativepress]

I don't understand the sarcasm. I thought this was an important warning to share. I originally video taped it to show how involved it is to change the Hare Drive on this model of Mac and then I realized that people may attempt it themselves and I wanted everyone to know how dangerous it can be. A danger one might not realize.

[system0slaven]

Thats was scary

[representativepress]

yeah, it is something more complicated and dangerous than many people realize so I thought I should share the info.

[moh77]

Thanks

[representativepress]

You're welcome moh77.

[justwatching1980]

i like your voice. and i like how you can make every bulletin-- such as this warning about a CRT-- into an urgent actionable request. i look forward to more videos & hopefully longer ones where you go in depth about an issue.

[representativepress]

Thank you justwatching1980. I do plan to make many videos now that go into detail about the political issues and dangers that we all face.