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BLOWING FUSE , THE IX1791CE IS SHORTED - Sharp 21B-S10 21" TV

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Mostly this problem cause opto coupler is short. change the opto coupler and related parts like transistors,zener diode.and check all diodes&capacitors is power supply. you find any leaky or damaged part change it.
thank you

Posted on Oct 08, 2010

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1 Answer

Fuse


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if it did not blow anymore and it did heat the ffod or water, then you all need to raplace that diode between the high voltage capacitor.

if the fuse did not blow anymore and it is still not heating the food , then you might have a faulty magnetron.

if it still blow your fuse then you could have a shorted magnetron, a shorted diode which is the one from the capacitor to the ground( this is anothere diode besides the one installed between the terminals of the high voltage capacitor) ( don't interchange them, they have different puposes..) or shorted capacitor also.

use a regular ohmeter to test each part...

i hope you can solve your problem with these instructions....

good luck,

drcool

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