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- From: gb03@ns1.cc.lehigh.edu (GEORGE PHILIP BLUHM)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: 1084 monitor problems.
- Message-ID: <1992Sep7.185200.225012@ns1.cc.lehigh.edu>
- Date: 7 Sep 92 18:52:00 GMT
- Organization: Lehigh University
- Lines: 34
-
- In article <47267@shamash.cdc.com>, app@shamash.cdc.com ( GSD Advanced Packing/P
- rocesses) writes:
- >>>It's the flyback transformator. One of the four solder joints that fix it to
- >>>the board is cracked. You have to resolder it (take care of the high voltage!
- ).
- >>>
- >>
- >>How would I go about avoiding the high voltages. What I mean is: "What high
- >>voltage parts should I look out for?"
- >>I've never taken apart my monitor, so I don't know what to expect.
- >
- >Even though the monitor may be unplugged (unplug it), the back of the CRT
- >will hold a charge. It's like a big capacitor that should be discharged
- >before you work on it. I usually connect a wire between house ground
- >and the monitor's circuit ground (metal shield under circuit board).
- >Then I make a connection from this point to the back of the CRT under the
- >rubber cup where the CRT is connected (Poke it down in the hole). As an
- >added precaution it's a good idea to momentarily ground anything you're
- >about to touch in case you didn't manage to discharge it.
- >
- >Although it is high voltage, it's not real dangerous because there isn't
- >much current behind it. It will spark pretty good and give you a good scare
- >though if you don't drain it. Work with one hand untill you disharge it.
- >
- Better yet, have a TV techian do it. Don't belive that the current is that
- low. I know and have welded several screwdriver to crt's during this process.
- I have also seen several large cuts in the same screwdrivers.
-
- Better safe than sorry.
-
- Denials
- George
-
-
-