My magnavox tv is blowing the 4amp fuse on the power supply board when i disconnect the ribbon cable to the other boards it does not blow the fuse.witch board is bad

Emerson BA17F1F0102 Power Supply Repair Kit LC320EM2

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This Emerson BA17F1F0102 Power Supply Repair Kit LC320EM2 ... board. If the TVhas no power it is most likely because of a blown fuse and failure of other preceding components. ... I tested F601, Q600, R602, 608 and 611, and found them to be bad. ...Power Supply / Inverter Board - Joseph A. on March 4th, 2015.

Common TV Repair for Emerson, Sylvania, Philips ...

? 5:35
https://www.youtube.com/watch?v=nQHWrJJg4Mc
Oct 11, 2013 - Uploaded by Tampatec
... LCD TV repairs for Emerson, Sylvania, Philips, Magnavox,blowing fuses "no power" i recommend a TV service LCD repair kit at ... powersupply power-supply "power supply" powerboard "power board" part2 part 2 pt2 ...

What Causes a Blown Fuse in TV Sylvania LCD - YouTube

? 15:31
https://www.youtube.com/watch?v=4P_0aLDZgBY

the power board is shorted and will need replacement. Yo can get the power supply board from www.tvrepairworld.com

There is an 8amp 250v 5mm x 20mm ceramic slow blow fuse on the power supply board inside the TV. The picture below shows the board with the fuse circled in yellow. If you had a big enough power surge it may have damaged other parts of the power supply beyond the fuse. Look for burn marks on the power supply board when you replace the fuse. If you need additional information just let us know [email protected]

What is status of Led lights on front of set?

you have a short most likely on the power supply but could be on the mainboard, inverter board, av/input board. The T-con board is fused and should blow its fuse before blowing the fuse on the power supply. I'm going with a faulty power supply, most likely a shorted Mosfet.

Good day!!!!


That problem is cause of shorted bridge diode or power mosfet..

just see the picture below to see the image of bridge diode and power mosfet..



If you don't have a tools or you have no electronic background you only have to is order the new power supply board..

I hope this solution will be helpful..Thanks for using fixya....

The cheapest option is to replace the transistors (a quick check on google will tell you how much they are). If they are common transistors you will be able to find them and get them quicker then searching for a board that could be no longer being made.

This set is a 50" plasma. first check the AC power fuse on the filter board then: if it is bad: check the power supply by marking and, removing all the cables; (so you can put them back in the correct spot) except the filter board to power supply cable; that connects to the Power supply board. Then: replace the blown AC fuse and, re-power: If the power supply blows the fuse: again, the power supply is bad and, must be replaced or, repaired. If the fuse does not blow: turn off the set then: on again, reconnecting and, disconnecting each board cable in turn, untill the fuse blows again this cable leads to the bad board; replace or, repair the board that blows the AC fuse every time the bad board is connected, irregardless of which other cable to the power supply may be connected also; or, not.

I have worked on about 5500 projectors in the past 10 years.
There is a dead short already somewhere so you cant blow anything else up if its a fast blow fuse.
Disconnect the Convergence Amp from the pwr sply then power it up for a few seconds with your 4amp fuse. Does the fuse still blow? If so, check the HOT transistor. (3 pin chip againts the largest heat sink)
Good luck

Then you have a shorted regulator circuit. the best bet is to replace the power supply board itself. The part number is 313815864961. Please take a few moments to rate my answer, Thank you.