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How long should one wait before opening monitor case?

Discussion in 'Hardware' started by buddhafabio, Jan 11, 2006.

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  1. buddhafabio

    buddhafabio Thread Starter

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    i accuired a good crt monitor that has power button pushed in and i plan on opening it to see if i can fix this. I know monitors can be dangerous if they are opened and you dont let the tub charge disapate over time. My question is how long must i wait before i open the thing and fix the button. its been 9 days so far
     
  2. bistro

    bistro

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    I never recommend anyone doing their own CRT repairs; better off letting a qualified technician do them.

    But FYI, a CRT charge can remain for a long time, even after several days in a low humidity environment. It's Winter and I assume you have been heating your house...probably fairly dry air....nice environment to build up static and/or preserve charges. Better to humidify the air to help slowly dissipate a charge.

    NEVER wear a static strap when working on a CRT; not unless you want to light up like a Christmas tree. PC case, yes...CRT, no.
     
  3. buddhafabio

    buddhafabio Thread Starter

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    well enviroment has cooperated here its been raining for last couple of days and i was also able to pop open a window for fresh air lately. and i am not tearing through the thing just some work on the inner shell.
     
  4. JohnWill

    JohnWill Retired Moderator

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    In truth, though it's possible for the CRT to maintain a healthy charge, it's not that dangerous to work on a video monitor. I started working with them as a kid in a TV Repair shop, and I got bit lots of times with the charge, and I'm still typing this. :)

    The proper method of discharging the tube is to use a well insulated probe that is grounded to the chassis and slide it under the anode clamp on the side of the tube to discharge it. Most modern monitors/TVs have a bleeder path that will discharge the tube anyway. If you stay away from the high voltage section, you should be fine.
     
  5. Mulderator

    Mulderator

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    Ahhhhhh--that explain a lot! ;)
     
  6. JohnWill

    JohnWill Retired Moderator

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    Don't lose a step looking over your shoulder! [​IMG]
     
  7. buddhafabio

    buddhafabio Thread Starter

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    fixed problem, broken plastic clip for button epoxied it to case and button works now

    monitor works fine and i am alive still.(y)
     
  8. JohnWill

    JohnWill Retired Moderator

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    I had faith in you. :D
     
  9. loserOlimbs

    loserOlimbs

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    Well, your a braver lad then I!

    I wouldn't open a monitor for the life of me, I also have a light switch that needs to be replaced, but I am too afraid of killng myself even after throwing the breaker...
     
  10. JohnWill

    JohnWill Retired Moderator

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    Gee, I guess working for several years in a TV shop when I was in HS cured me of worrying about the high voltage in a TV or monitor. It's really not that difficult to keep out of trouble in there, honest. :D
     
  11. dustyjay

    dustyjay

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    I dont think it is as much a problem being careful as it is a problem with oooops. Like if you are in there, and you drop something even if not in the monitor, dont grab to fetch it! That is usually when the bite happens, and though most often not a fatal bite, It sure does hurt like the dickens!
     
  12. JohnWill

    JohnWill Retired Moderator

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    The damage usually comes from jerking your hand away and slashing it on something inside the chassis. Don't ask me how I know this. :eek: ;)
     
  13. dustyjay

    dustyjay

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    yeah I got a few of them scars, but not from just working on computers LOL. even a couple on my head from smacking it when I got the slash on the hands!
     
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