Question about Office Equipment & Supplies
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Microwave keeps blowing fuse
If it blows the fuse as soon as you hit the START button, it's almost certainly a shorted high-voltage capacitor.
If it blows a few seconds after you hit the START button, it's probably the high-voltage transformer. You'll possibly also smell a faint electrical burning smell from the rear vent after you shut if off.
If it blows the fuse as soon as it's plugged in, you probably have a shorted door switch, a shorted varistor, or an internally exposed wire shorting to the chassis, etc.
Posted on Nov 19, 2007
SOURCE: Microwave keeps blowing fuse
If it went dead almost immediately after pressing the Start pad, that\'s usually a shorted high-voltage capacitor.
If it went dead a few seconds after pressing the Start pad, that\'s usually a failing high-voltage transformer.
Here are some links with info on part testing:
You can usually find helpful exploded view diagrams and order parts by
entering your full model number here: http://tinyurl.com/gv383
Please write back with your brand and model number if you need further help.
We\'re happy to help and we appreciate your thoughtful rating of our answer.
Posted on Jan 13, 2008
SOURCE: I have a Marshall G100RCD
You have a shorted output channel. You probably see burnt resistors and very heat stressed areas of the board. That is a sign of the outputs being shorted. Unless you have experience in repaired amplifiers you will not be able to repair this yourself. If you change the burnt resistors, they will most likely burn up again. The output transistors for one of the channels are also shorted. They must be replaced along with every other bad component. If you miss just one of the bad components you will most likely burn up all the good parts you just put in. Resistors must be checked to make sure they are within the rated tolerance, capacitors must be checked for being shorted or being dry, diodes must be checked for being open or shorted, output transistors and driver transistors must be checked for being open or shorted, and the list goes on. It is a very difficult job for anybody not experienced in repairing electronics.
Take it to a reapir center that will work on those type of amplifiers, not all repair centers will.
I am very sorry to give you such bad news, but it is the problem you are having.
If you need any additonal help feel free to ask, if you decide you are going to try and fix it yourself I can tell you what to look for and how to check them, but without the proper equipment you will not be able to do this.
If you found this information helpful a rating of "FixYa" would be appreciated. The "FixYa" ratings is not just for helping you fix your equipment yourself, it is also for helping you decide if you can even fix it yourself or not.
Thanks, and I hope you find a good repair center.
Posted on Jun 28, 2008
SOURCE: 700t trotter cybex treadmill
Appreciate the direct "Ask Me".
To your concern:
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards. Thank you for using FixYa.
Posted on Aug 20, 2008
Tips for a great answer:
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1) short in circuit... frayed wire, accidental circuit board contact with metal frame, solder bridge on circuit board, or wire placement/connection error
2) Too high voltage in circuit can cause excess current
TROUBLE SHOOTING: measure circuit voltage w/ meter. If normal, put amp-meter (with fuse) in circuit
at problem fuse connector and quickly check current.
If very high, trace (look) along current path for location
of a short to ground/frame/etc.
Hope this helps...if this is all Greek, consider looking
for Better Bus. Bureau approved repair shop.
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