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No voltage out

Was possibly overloaded , already replaced the diodes and did not help

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Here is a simple test. With engine off apply 12v ac 1 amp to 110v outlet plug on generator. This will energize the field windings and cause the armature to produce dc voltage at the brushes and produce a nice magnet if all is well. If dc voltage is present at comutater, remove 12v ac and start engine to check for output. enjoy

Posted on Nov 30, 2008

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6ya6ya
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Posted on Jan 02, 2017

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In panasonic modeltc-29sf3 pls give me the working voltage of zener diode with color code gray red red and red yellow in power supplyn section


just read the model and then google it, beside, if you short them, you need to replace them with same value, and this will be determined by the circuit, if you did not change the circuit - just buy two new diodes and install them, do not bother with voltages as they have some tolerance and type will determine it.

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My tom tom will not turn on


Possibly a voltage overload. You will be able to smell the buring at the USB socket power point. Needs to be sent in to the workshop for repairs and various chips and diodes need to be replaced

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Wd2500 500gb light flashes when plugged in. does not engage no communication with computer


I found some solutions already listed here on FixYa that really worked. Here's the link:

http://www.fixya.com/support/t2950434-wd_elements_usb_drive_not_recognized

I also left a comment on exactly what I did to fix my problem using the instructions that were listed thanks to etcrCustomPC. I had tried everything for days including "Safely Removing" the USB Mass Storage Device, and restarting Windows; downloading updated drivers, scanning for changes, and updating drivers on "Device Manager". I went online but did not find anything helpful other than what I had already attempted. I saw "FixYa", and decided to try it out. I kept clicking on all the different sites on "FixYa" listed. Yes, I will go literally through the web until I find or figure out a solution. You could call me a "research investigator". I may not know how to solve the problem, but I will search diligently through lots of "Trial and Error" information until I find one that works. This one definitely worked for me. I hoped this helped. If it does not, I will post all the related links later so it makes searching for a solution a lot easier. Thanks FixYa. I have fallen in love with this website, and adding it to my "Favorites".

Feb 20, 2011 | Western Digital Passport WDXML800UE...

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Model nn-n765 Was running made a scrapping noise then shut down now completely dead won't start no lights nothing


A wild guess: the scraping noise was a motor bearing seizing up (fan or turntable). A thermal cutout blew when something overheated. This would have taken several minutes to happen.

Alternate, and more likely explanation: the scraping noise was actually high-voltage arcing in a failed component, most probably the voltage doubler capacitor. This would blow the fuse. Replace both the capacitor and diode; the diode was probably overloaded and could fail at any time if it hasn't already. At $5-$10, it's cheap insurance against having to fix the thing twice.

Jan 18, 2011 | Panasonic NN-H765 Microwave Oven

1 Answer

Samsung tx-r3079wh blows h.o.t.


Overload on high voltage section. Flyback could be the suspect, check also diode within flyback vicinity. Some bloated capacitor.

Others could be your regulator is faulty. Check it B+ supply if within spec. Or that is his time already. Some are due to minor components like zener diode that acts as voltage reference.

If you are not inclined in electronics better not to service the unit and have someone with knowledge on it do it.

Oct 02, 2009 | Samsung TXG2548 TV

1 Answer

Sony 36" Trinitron


The power supply section is having trouble.
Common possibilities are:
- High-voltage section (flyback transformer) has failed
(happens sooner or later, about 8 years typical))
- CRT tube has failed overloading the supply
- Power surge has popped the power input circuit.
(Fuse, rectifier diodes, turn-on relay etc)
- One of a hundred of electrolytic capacitors has failed short overloading the supply. They dry out with age, are cheap to replace, but hard to find which one it is.
- Or any of many other possibilities.

In short, you need a experianced tech to troubleshoot this.

Feb 22, 2008 | Sony FD Trinitron WEGA KV-36FS120 36" TV

2 Answers

Zenith rear projection 60 in a60m91w1


The power supply section is not working.
Common possibilities are:
- Convergences amps have failed overloading the supply
- High-voltage section (flyback transformer) has failed
(happens sooner or later, about 8 years typical))
- CRT tube has failed overloading the supply
- Power surge has popped the power input circuit.
(Fuse, rectifier diodes, turn-on relay etc)
- One of a hundred of electrolytic capacitors has failed short overloading the supply. They dry out with age, are cheap to replace, but hard to find which one it is.
- Or any of many other possibilities.

In short, you need a experianced tech to troubleshoot this.

Feb 14, 2008 | Zenith IQB60M92W 60" Rear Projection...

1 Answer

Tv won't turn on?


The main power supply section is not working.
(standby supply is OK)
Common possibilities are:
- High-voltage section (flyback transformer) has failed
(happens sooner or later, about 8 years typical))
- CRT tube has failed overloading the supply
- Power surge has popped the power input circuit.
(Fuse, rectifier diodes, turn-on relay etc)
- One of a hundred of electrolytic capacitors has failed short overloading the supply. They dry out with age, are cheap to replace, but hard to find which one it is.
- Or any of many other possibilities.

In short, you need a experianced tech to troubleshoot this.

Feb 13, 2008 | RCA 20F511T TV

1 Answer

Power surge


The high-voltage transformer being overloaded by something shorting it out. Either the magnatron or the high-voltage capacitor and diode. Replace the capacitor and diode then if still not working, replace the magnatron. The magnatron is only affordable to do it yourself - buy the part on EBAY - lookup "universal magnatron"
Hope ya fix it!

Feb 10, 2008 | GE JE1860 Microwave Oven

2 Answers

Philips 46PP9302 46 in. Rear projection -


The power supply section is not working.
Common possibilities are:
- Convergences amps have failed overloading the supply
- High-voltage section (flyback transformer) has failed
(happens sooner or later, about 8 years typical))
- CRT tube has failed overloading the supply
- Power surge has popped the power input circuit.
(Fuse, rectifier diodes, turn-on relay etc)
- One of a hundred of electrolytic capacitors has failed short overloading the supply. They dry out with age, are cheap to replace, but hard to find which one it is.
- Or any of many other possibilities.

In short, you need a experianced tech to troubleshoot this.

Jan 22, 2008 | Philips 46PP9302 46" Rear Projection...

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