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unplug all the aux plugs but mark them replace fuse turn on if it still blows need a new board if not plug in auxs 1 at a time till it pops then check out that aux for shorts sometimes the relays short out
That could be caused by either the AC main filter board ( Most Likliest) or also the deflection board. You can get replacement boards from www.tvrepairworld.com and free assistance to help determine which board has the issue.
in the printer there is a power supply board.there is a same type of 3amp fuse on the power supply board.if there is any kind of overheating in the power then the fuse in the plug and fuse on the power supply board blows out.in some cases only fuse on power supply board blows out.this fuse is placed on the board for safety reasons.because in the older model printers when this short circuit problem was happening at that time whole board used to blow out.so in the new model of printer a fuse is placed on the board ,so if any overheating or any power outage or any short circuit occurs.the fuse blows out instead of whole power supply board.
You just need to replace the fuse on the power supply board by disassembling the printer.the power supply board is the green color square shaped board.its the board to which your power wire of printer is connected.
the fuse is available at any local electric hardware shop.its not any special kind of fuse.
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There are a few common reasons the fuse keeps blowing:
1. The transmitter final transistor is bad, it usually is directly connected to the 12v source and not switched by the power switch. 2. The power wires were accidentally reversed I.E. positive to ground, neg to 12v. There is a protection diode on the circuit board that did its job and is now shorted. it will keep blowing fuses until its replaced.
There is a short there, in control panel circuit board,that's why your fuse is keeps blowing.Trace the electrical connection from down to up to control panel board. Check for short capacitor and diode..Feel free to ask whatever the result..