Question about Vizio L32 32 in. LCD HDTV

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The fuse is blowing on the Power Supply when I apply power to the TV

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Your Tv has short circuit , what kind of tv do you have ?

Posted on May 26, 2010

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The fuse blew on the board. The tech said it was because the battery was connected before the main A/C power breaker was turned on. Is this true or does it matter which power A/C or D/C is energized...


Primary power should always be applied before batteries are attached. Voltage spikes that can occur when primary power is applied can blow the fuses. The most common cause of the battery circuit fuse blowing is that the batteries were not connected properly.

Aug 16, 2013 | Edwards Furniture Edwards Est Remote...

1 Answer

The 3.15A fuse on the power supply board of my Samsung LE40B550A5W LCD TV keeps blowing as soon as I apply mains power to the TV


Some of the parts of the power is shorted try to check the regulator and the diode. But be sure to unplug the unit before checking the regulator and the diode. Feel free to send feed back good day and best regards.

Aug 18, 2011 | Televison & Video

1 Answer

Fuses keep blowing in tv


The tv have a short in many parts internally in tv power supply board itself could be anythings on the tv power supply board to causes the fuse to blow over and over again.U will never solved it if u don't have all the measuring elecronics equipments and skills and know how to find out.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Aug 11, 2011 | iLO LCT32HA36 Television

1 Answer

Tv does not turn on , there was a power outage and since then it wont turn on. there is power to the outlet


If the TV is completely DEAD. Check the main fuse in the power supply. Replace the fuse with exact amperage. Make sure you unplug the TV before taking the cover off. If the power supply keeps blowing the fuse, replace the power supply. Be very careful high voltage can kill!

Best of luck
AAA TV SERVICE

Jun 12, 2011 | LG 42LG30 42 in. LCD HDTV

1 Answer

I have a LG 37lc2d and it suddenly turn off and wont come back on, the stand by lights doesnt turn on either. i was wondering if its just the power supply? or how can i troubleshoot this my self to see...


There is a fuse on the power supply close to where the A/C is connected to the board. If the fuse is blown, look at the board and see if there are any burned components and or swollen capacitors. If there are bad components, I would suggest getting a new board.
If the board looks OK, disconnect the connectors from the board but leave in the A/C connector (this way you can isolate the power supply board), replace the fuse, and power up the TV.
If the fuse pops after the power is applied to the unit, then the power supply is bad.
If the fuse is still good, then power off the TV, connect on the main board’s connections, and power up the TV.
If the fuse is still good, then power off the TV, connect the inverters, and power up the TV.
If the fuse blows now, then the inverters and or the panel are bad.
A working power supply will create 5vdc for the main board’s stand by source voltage. This can be found on the power supply at the main board’s connector and it is labeled in black text.
I hope this information helps you.
Good Luck.

May 28, 2010 | LG 37LC2D Television

2 Answers

MAIN INPUT FUSE KEEPS BLOWING


theres a shortage in the circuit try check the rectifier diodes at primary power supply section, not dangerous to little knowledge,refer to a qualified service technician

Jan 03, 2010 | Samsung TXP3275H 32" TV

1 Answer

The power safety fuse was blown. I replaced it but everytime I plug the TV, it blows the fuse. It is a Sony projection HDTV


When fuse blows again and again that means power supply is bad and needs to be replaced.
Let me know exact model of your Sony TV to provide you power supply board part number info.


Nov 03, 2009 | Sony KP-51WS510 51" Rear Projection...

1 Answer

Blows 4 amp fuse inside tv


the poer supply faulty. Isolate Horizontal output stage from the power supply and connect dummy load (like normal bulb same wattage as TV ) and test. before that pls check all component in power supply and replace and burnt parts spacialy diodes caps and power regulater ic as well

Jan 15, 2009 | Televison & Video

1 Answer

Blowing fuses in power supply


One thing to check, would be the filter capacitator that is on the front circuit board. They are known to become shorted. The cap is fairly large, and may be mounted on the side of the circuit board that faces the front panel. Clip one lead, and apply power. If the fuse does not blow, then that is it. A second possible component, is the polarity protection diode, that is near the power jack, next to the fuse. If it is shorted, then the fuse will blow every time.

Aug 21, 2008 | Optics

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