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Receiver turns on but no sound. Suspect it is a blown amplifier fuse. where is it located on the receiver and how do I replace it?

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1 Answer

Is there a fuse in this amp? is it replaceable without soldering?


Hi, blowing a fuse in an amplifier is a problem that most guitarists face at one time or another. If an amp won't turn on, or it turns on for a second, then makes a popping sound and turns off, the problem is usually a blown fuse. Though a blown fuse can be a hassle, especially during a performance, it does not have to put a stop to your musical enjoyment. With a spare fuse you can be back jamming to your favorite tunes in no time flat.

Things You'll Need

Fuse.

Instructions

Turn off the amplifier and unplug it from the wall.

Locate the fuse, which is usually found at the back of the amp. The fuse will look like a small black wheel sticking out of the amp with a number and the letter V next to it. For example, 9V.

Gently turn the fuse counter-clockwise to remove it from the amp.

Discard the old fuse.

Insert the new fuse into the empty fuse slot and turn it clockwise until it is firmly in place.

Plug in the amplifier; make sure the power switch is in the off position.

Turn the amplifier on to make sure the new fuse is working properly.



Hope it helped..

Jun 14, 2011 | Crate FlexWave FW15 Guitar Amp Combo, 15...

1 Answer

Subwooffer is not working


subwoofer with amplifier can make sound if you plug in small screwdriver which hold by naked hand in input jack. if not, it maybe cuase by blown fuse or blown amplifier or blown SPK

Mar 28, 2011 | Audio Players & Recorders

1 Answer

Set dead


Hi,you can use the following instructions below to troubleshoot the receiver set that is dead.

Instructions



Turn the receiver off and disconnect the power cable from the wall and the back of your receiver.

Test the cable with a multimeter to verify that it is working properly and supplying the receiver with full power. Multimeters are widely available through electronics supply shops, hardware stores and various online retailers. Different multimeters give different readings, so check your operations manual if you are unsure how to test a power cable for continuity. Replace the power cable with a working one of the same type if the original cable is not working properly.

Connect the multimeter to the pins where the power cable connects to the amplifier if the cable is working properly. This is the same area from which you disconnected the power cable in the first step. This is a particular process and all multimeters use different readings to test for pin-out continuity.

Check the fuses on the back of the amplifier if the multimeter shows a correct reading when you test the power cable and power connection on the back of your amplifier. Look carefully for a cracked filament within the glass tube; even a small crack can result in power failure or intermittent operation. A blown fuse will generally look gray or black around the edges or inside the glass tube. Blown fuses will not provide power to the amplifier and are a common cause of no power or a single dead channel, depending on the location and type of fuse.


Tips & Warnings

Opening the amplifier is not recommended, as there is a risk of electrical shock and you may void the manufacturer's warranty from Yamaha or any warranty provided by the retailer you purchased the amplifier from.

Always replace fuses with the same voltage fuse. Using the wrong type of fuse can damage your amplifier.

Do not try to open the receiver and fix the power supply if you believe that you have a power supply problem. This is generally quite dangerous if you do not know exactly what you are doing or are not working with the proper tools.

Hope it helped..

Feb 18, 2011 | Audio Players & Recorders

1 Answer

It turns on,everything works normal and sound even comes out of the headphone jack.but there is no signal coming out of the speaker jacks.no sound or test tone


Hi depending on the design some receivers , when you plug in headphones, speaker sound is disconnected by the headphone socket so it could be faulty, or there may be a separate switch to switch of the speakers, (while using headphones) if so that switch could be suspect. I dont think the amplifier part of the receiver is at fault as you say you can hear sound at the headphones. It is not impossible though that a fuse has blown inside the amp, If you unplug from mains and look inside you may spot a blown fuse , (only replace with one of the same rating).
Hope this helps
pete

Nov 14, 2010 | Teac AG-V8060 Receiver

1 Answer

Only get sound out of right side both a and b


Good day sir, Hi, your Philips receiver trouble can be any of the ff:
  1. your receiver left fuse is blown, check if it has a user fuse at the back. or
  2. your main IC amplifier for the left channel is bad. you need to replace that IC, but check first the wiring of the speakers.
  3. Check your receiver left speakers if it is producing a soft hum, to do this turn down the right channel, or adjusting the balance knob to the left, or simply remove the speaker connection of the right channel. place your ears on the left speaker as you adjust the volume up and down, do you hear a soft hum that goes up and down also? If yes the problem is on the source section before main amplification, usually the pre-amplifier stage, If you hear no hum at all. problem with the main left amplifier. The main amplifier is usually a single IC for both left and right channel, OR one IC amplifier for the left and one for the right, in both cases, replace the bad IC.

Jan 21, 2010 | Philips Audio Players & Recorders

1 Answer

I just bought a 98 concorde lxi and no sound coming out of the speakers, radio comes on and shows channels just no sounds


Hello georgouseyes,

The problem could be in the output from your receiver to the amp or in the amp itself.

First check to see if the amp powers up. If it doesn't, check the main power fuse (usually located under the hood near the battery). Also check the power and ground connections on both ends.

If the main fuse checks OK, check both onboard fuses. There's 2 35A fuses on the far right.

If the amp powers up OK and the onboard fuses are not defective, it's possibly the output from your receiver or line output converter. Replace the RCA cables with a known good pair. If there's still no sound, I'd suspect that the amp itself is defective.

Hope this helps.

Oct 17, 2009 | Infinity 475A Car Audio Amplifier

1 Answer

Turn on and the fusse explotion no have soun


This condition, may be produced by defective components (Q506, Q507). you can remove those transistor, replace the fuses, power-on and wait for relays click. if the fuses not blown again, them replace both transistor

Feb 15, 2009 | Sony STR-DE845 Receiver

1 Answer

Amplifier keeping blowing fuse


This almost always indicates a blown speaker. If you have an ohm meter you can use that to test the impedance on your speakers. After disconnecting the speaker - touch the red lead to one connector and the black lead to the other. If it reads something other than 8ohms that speaker is blown.
If you don't have an ohm meter you can simply disconnect one speaker at a time and run that way until the fuse blows. If the fuse never blows then you've found the suspect speaker.
Sometimes blown speaker can hide by stealth. When cold everything is normal. When things start to heat up from use the failed circuit shorts and blows the fuse on your amp.

Oct 21, 2008 | Denon DRA-375RD Receiver

1 Answer

Sherwood AI5010 no sound from either channel


Hi There DEKCAT
Its very unusual for both channels to blow......

I suspect that there is a blown power fuse inside the case......

There are fuses sometime located on the outside rear of the case and these can be easily checked to determine if they are blown..If you find one is blown please replace with the corrrect rated fuse,..... its current rating wil be on a small label on the case outside rear. like 1.0amp, or 1.5amp etc...

If you need to go inside the case please ensure the power plug is removed from the wall socket first.

You will find small glass fuses in the DC power supply feeds and probably one of these has blown, once again replace with the correct rated fuse.

Im not sure if your amplifier is a FET type or a large 32-40 pin IC type as if these are blown you will need a service person to do the replacement...

Please note there is a small relay that clicks 20seconds after turn on at the switch....if this click is not happening then there is problems with the timer circuit or the relay itself...

This relay controls the output to the speakers and as such stops all the sound output if its not working...so the first thing is to check all fuses, if they are OK then check the Relay operations....

Cheers From YUBEUT

Nov 09, 2007 | Audio Players & Recorders

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