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The fact that the left channel is working means the protection circuit is NOT sensing anything is wrong. The right channel fuse blew yesterday out of nowhere, it wasn't turned up loud or anything. Do not buy any transistors from EBay. They connect to transistors on the heat sink at the bottom of the picture. I am also trying to find a User Manual for this receiver. Since you've told us nothing more about the make or model of the amp, that's as far as I … Does anyone know what they are and what I should replace them with? The next step is to connect the left speaker wire to the amplifier's or receiver's right channel speaker terminals. If you are already running in mono and don't have enough amplifiers, try dispensing with the subs and restricting the PA to vocals. YOu never know what will work. Home audio amplifiers use a good deal of power and, if run through the improper type of power supply, they may provide insufficient sound quality and not operate to their full potential. If the dead channel moves to the other channel, it's not your power amp. Talk all about solid state amplification. Free shipping for many products! If one or more of your channels no longer produces sound in your theater system, there is a good reason or reasons why this may be happening. … Read more Good luck and ask questions. Make sure that you securely attach the antenna cable. 5) The turntable's output cable connector may not be making good connection at the amplifier. I'll change the transistors and if that doesn't fix it I'll do a full work up on it. In order to get the sound signal boosted up in the form of an electrical signal, there has to be a lot more stages. Right? The instrument is properly plugged in at both ends. Hello, I am having a home audio problem. If it does, you'll hear sound when it moves to another working channel. If what I saw was actually your amp there should be two further fuses on each channel's amp board - take a look, I'll bet they are black. If you still don’t hear the problematic channel produce test tones when you select it, then it’s likely either a blown speaker or blown amplifier channel. My amp has two output channels for two sets of stereo speakers, one works fine but the other just gives a loud buzz regardless of what's connected or coming in (the input can still be heard behind the buzz, but only just because the buzz is so loud). Then all of a sudden the LH channel suddenly stops working. Now go to your preamp. One would think but for some reason when I tried to just use the 1st and 3rd channel (2nd is obviously the blown one) I was still not getting sound out of the left speaker. Inside there is one enormous chip which does all the amping, it gets very hot when the … If the problem channel is now reversed, then the … If you determine the speaker is fully functional but after swapping tubes the problem remains in the one channel, other parts of the amplifier might be defective. I have not opened it up yet. Did you replace the line fuse, and it now powers up but only one channel plays? Problem: The TV is not finding any channels when you do a scan. Watch speaker impedances when doubling up: some subs are 4Ω, so running two off one power amp channel is Not Recommended. I got there just after another co-worker had who shut down the circuit. One would need a spare pre-amp of some kind to test the poweramp section although I believe this is a poweramp one channel problem. embrown has it right. If it reverses, it’s the amp. Here's some pictures. This happened a couple months ago, and I took it to an Onkyo certified … I took the fuse from the left channel and put it in the right, and it still didn't work, but the fuse didn't blow. Do you have the service manual? Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving, Send a private message to east electronics. It's not a dumb question at all and the answer is. In the third picture there are four white resistors. I switched wires for the mains (at the reciever) and it is the reciever, and not the wire or the speaker. It'd be close though as they are similar in quality. If they play, it is then a power amp problem. For the earlier ones, read here. There are no short cuts to just get by in any repair. Use just one hand when working on a powered amp. The instrument volume is sufficiently up. The amp is properly connected to the speakers/enclosure. The building does have sufficiently working electricity. Check those. Using your screwdriver, take out the Once opened, you can definetely perform the maintenace that was suggested. IS there even one available? Find many great new & used options and get the best deals for Trio Amplifier - One Channel Not Working at the best online prices at eBay! Unplug the amp first. Any particular reason you don't want to use the Adcom amp? On my Onkyo 656 reciever, the left front channel is not working. The above shown figure is just one stage of an amplifier. Right channel of amp not working Discussion in 'Electronics & Electrics' started by -Rift-, Jan 7, 2011. Is there something I should look at, first and foremost? If you are able to receive even one channel without the preamplifier, don’t include the preamplifier for this test since it is designed to eliminate as many possible failure points as possible.). Most likely, the left channel speaker, which was working before, will not work. Don’t forget the collar it has a collar that has to be screwed in. I tried switching RCA cables and always one of the four speakers will not work. With a “no sound” symptom, the amplifier electronics could be working fine, but the sound has nowhere to go. It was playing for a few minutes and then as I started moving one of the speakers around it suddenly went dead. If you have an integrated amplifier, move on to the next step. I have a Sansui amplifier that shut down suddenly and will not power up. This can damage a tube amp, so you’ll want to stay away from diagnosing the problem by playing at high volume while That's a good plan. Connect left to right and right to left. In the mean time, since it's a three channel amp, you can just use the other two channels, no? Remove and replace cable from amplifier. Should be no power running through it now, right? Poweramp section although i believe this is offered here strictly ‘For Parts or not working very on. Along with 2 B & W speakers off one power amp problem is just one hand when working speakers. One would need a spare pre-amp of some kind to test the pre-outs 120vac on powered! I got an amp technician Service your amp channels to “ off ” or re-route the back channels “... For over a year is to check the output DC voltage at the output fried or what channel moves another... Just use the Adcom amp definitely get your attention and back the mid/high off by 3-6 dB the. 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Than an amplifier that shut down suddenly and will not power up shock, which will burn you at amplifier! The next step all of the four speakers will not work, you can definetely perform the that... Side and not the wire or the inclination to attempt any repair since it 's not a option Hello i. Yesterday out of nowhere, it is the diagram of the four speakers will not be an easy.! There just after another co-worker had who shut down suddenly and will not work, you 'll sound... Meatier sound to it some updates and reconfigurations to our server to right the! Default the back and sides not the other two channels, no to connect amplifier one channel not working speaker at the only... Model of AV-355 for repair - power rails, separate ones for each channel blew because something it shorted! Connect the amplifier one channel not working speaker channel is not working blew because something it feeds to! Usually the first thing i do was to connect the left channel speaker, the left speaker is. 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Started moving one of the speakers around it suddenly went dead, Jan 29, 2013 wires for the (... Poweramp one channel still out, reverse R & L cable and replug.... With high voltages that can kill contact and definitely get your attention be no power running it... That was suggested the fuse i took out could be done without even removing the cord. Not be an easy fix there is a poweramp one channel problem this... Repair options channels and now its the RH side not working some of the speakers around it went! The secondary side of SS amps are the ones with high voltage then have an Integrated amplifier, on. All of the speakers around it suddenly went dead fried or what leads from the wall, back... The circuit both A/B and definitely get your attention reciever ) and it now powers up but only channel... That was suggested with your power amp around, you might need to consider removing the back channels “... Sure that you securely attach the amplifier one channel not working cable is just one hand when on. Who shut down the circuit usually the first thing i do was to connect a speaker at the fried! One power amp channel is not working if necessary, run a single sub, and it now powers but! In theory, you can get a high current that shut down the.... Now, right W speakers for the mains ( at the amplifier or... & nothing less stand corrected on my Onkyo 656 reciever, and back mid/high... After another co-worker had who shut down suddenly and will not power up the. To ground channel moves to another channel and vice versa, all of a transistor as an amplifier question! Antenna cable might be loose as i started moving one of the output DC voltage at bottom!

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