Question about ViewSonic E70 17" CRT Monitor

2 Answers

No blue gun, all of a sudden

Hi Fixers, The blue gun on my E70 suddenly stopped working. Otherwise the monitor is perfect. Can anyone offer me a clue as to where to start looking for the problem? I'm a bit of a newbie, but yeah yeah, I'll be VERY careful of not getting shocked - I'd just like to know if its worth trying to fix it myself or if it really has to go into a workshop? Thanks, Gavin

Posted by Gavin2 on

  • Gavin2 Aug 17, 2007

    Hi Guest, my monitor is showing perfect picture in the Red/Green spectrum - pin sharp, high res, zillions of colours - all EXCEPT for Blue and combinations of blue. I've disconnected the power, checked the picture cable, had the back cover off, poked at all the internals [with a very long wooden chopstick - I'm not taking any chances;-] but still no solution. The only blue I ever see is when I shut down the computer, then the screen flashes a small intense blue spot in the centre before it goes dark.
    OK, so if there's no blue gun (Garfunkel01), then maybe it's some other circuitry or component that's faulty. I just wondered if it might be a simple fix...
    Should maybe raid the piggy bank and buy one o' them LCD things instead!



2 Answers


100,000? At that rating the monitor would be giving off x-rays and gamma rays. Its more like 25,000 volt, plus its easy to discharge the tube, don't discourage him... Gavin2, is your monitor still not working?

Posted on Aug 16, 2007



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  • 56 Answers

Cant be a blue gun, there is only one gun in these monitors. Check your cable, wiggle the cable at both the comptuer and montior ends, if this monitor has a changable cable and wiggling it works, replace the cable. otherwise you'll have to take it somewhere or get it replaced.

Posted on Aug 15, 2007

  • Anonymous Aug 15, 2007

    it's worth having someone professional look at it if you need to open it up.

    There are extremely high voltages involved with CRT monitors and tv's. I would not reccomend opening it unless you know what not to touch.


    be careful



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