Question about Pioneer VSX-454 Receiver

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Blows 2 120 volt 6.3 amp fuses near power supply

This is the older vsx- 9005 multi room receivers, Never has give any problem just wacthing tv and all of a sudden sound went out. Open case and saw 2 fuses bloued, replaced and done the same

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  • Anonymous Jan 07, 2008

    my vsx-454 has been working great for12 years now all of the sudden no sound I have tried everything. the only fuse I see does not appear to be blown. can someone please help me? Tonia Miracle

  • justamlracle Jan 07, 2008

    my VSX_454 has worked awsome for the last 12 yearas now all of the sudden I have no sound. The only fuse I can see does not appear blown. can anyone help me please I even vaccuumed all the dust from it. helpppppppppppp

  • vadavid Sep 23, 2012

    Did you find he problem? My VSX-D1S has blown two 125v 6.3a fuses a couple of times as well. I replaced two damged caps on the same board as the fuse but it didn't fix the problem. Thanks for any insight you can provide.



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You have a short either from foreign object inside or blown audio amps. Look for any chard or burnt components.

Posted on Sep 14, 2007


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Why does the fuse blow Instantly?

Link for the service manual: On page 50 of the manual (36 of the pdf) it says for the "Sub woofer pre-out jack (Not available on the VSX-305 model) If you want to boost the low frequencies, connect to a subwoofer power amplifier" Your model will not drive a sub-woofer with out another amp. His sub may be a powered sub?

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buzzing is one sign the power pack may have gone and is not giving the right power check with another power supply same type volts and amps.

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How many amps is the fuse that is located on the back of the TV near the power cord. It says T5AL/125 or 250 v. f800

Something else is going on to cause the fuse to keep blowing. Sounds like you have an issue on your power supply in the unit. Also check the outlet that your plugging it in to. Good luck!

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Just installed new steam shower, it produces steam for about 5 minutes and then blows the fuse

Based from your comments, a new steam shower that blows the fuse in five minutes. You could have installed a new steam shower that is much bigger than what you previously have.
1. For a 5000 watts steam shower at 220 volts
power must have a fuse rating of 40 amps, supply
wires of at least No. 6 AWG Type THW ; and at
110 volts a fuse rating of 80Amps, supply wires
of at least No. 2 AWG type THW.
2. For a 4000 watts at 220 volts, Fuse: 30 amps,
Supply wire: No. 10 AWG type THW. At 110volts
60 amps, Supply wires : No. 4 AWG Type THW
3. For a 3000 watts at 220 volts, Fuse: 20 amps
Supply wire: No. 10 AWG type THW; At 110volts
Fuse: 40 amps, Supply wire: No. 6 AWG THW
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Supply wire: No. 10 AWG THW and at 110 volts
Fuse: 30 amps, Supply wire: No, 8 AWG THW

Nov 27, 2009 | Hammering

1 Answer

I have a Pioneer VSX-454 reciever, both 1.25 Amp fuses blown

blue two legged varacter on power supply board needs to be replaced

Jul 12, 2009 | Pioneer VSX-454 Receiver

1 Answer

Amp powered down after got a few rain drops

You might get lucky and it be only the fuse. Since it doesn't have a reset switch, you'll have to remove the cover. Un-plug it first, remove the screws, remove the cover and taking it outside, blow off any of the dust that has fallen into the amp.

You should be able to locate a fuse near the point where the power cord enters the back. Carefully remove, check it (a thin continuous wire from end to end) and replace with an exact match for size and capacity (if it's 5A, don't replace it with a 10A) if it's burnt.

You should be able to power it up without having to reconnect everything to test if that worked. If not, a repair shop is in your future, or a new receiver.

If it

May 01, 2009 | Pioneer VSX-D514 Receiver

1 Answer


Bad News!
If the fuse is in the mains (power line) you could have a bad rectifier or other problem in the power supply. Most amplifiers nowadays have switching power supplies and they are not as easy to troubleshoot as the older linear supplies. If an Output or driver transistor is shorted, the power supply fuse will dump just as fast, load or no load.
Mister Phil

Apr 06, 2008 | Audio Players & Recorders

1 Answer

No power no sound

oh noh!!! I suggest you should an AVR (automatic voltage regulator), these will help to control the flactuations of power. try also check the power supply (its either 110 or 220 volts), just make sure it is compatible to your default power supply.

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Samsung Flat Screen Won't turn On

yea take your tv to a tech tv has a problem in the power supply there is 10mf cap in the power supply that likes to go bad replace it if that model does not have it check regulator and the microchip.however your problem lies in the powerand related circuit.good luck

Apr 02, 2007 | Samsung TXN3275HF 32" TV

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